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DIFFUSING OF INCIDENT LIGHT

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359 - Optical: systems and elements

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DocumentTitleDate
20090002831Glare-Proofing Optical Laminate - An anti-dazzling laminate made of an optical laminate including a light transparent base material and an anti-dazzling layer having a concavoconvex shape provided on the material. The laminate simultaneously satisfies formulae: 0≦G01-01-2009
20090213465LIGHT DIFFUSION FILM - A light diffusion film (08-27-2009
20110205632OPTICAL FILTER FOR DISPLAY DEVICE AND DISPLAY DEVICE HAVING THE SAME - An optical filter provided in front of a display panel of a display device includes a background layer and a color shift-reducing pattern formed to a predetermined thickness at the background layer. The color shift-reducing pattern includes a plurality of pattern elements spaced apart from each other. At least two pattern elements of the plurality of pattern elements have different light absorptivities and/or light diffusivities. The at least two pattern elements may contain different amounts of a light-absorbing material that cause the different light-absorptivities and/or different amounts of a light-diffusing material that cause the different light diffusivities. The plurality of pattern elements may form a group of first pattern elements and a group of second pattern elements. Only the group of first pattern elements may contain the light-absorbing material, and only the group of second pattern elements may contain the light-diffusing material. The groups of first and second pattern elements may be arranged alternately.08-25-2011
20130033754COMPOUND OPTICAL FILM AND METHOD FOR MANUFACTURING SAME - A compound optical film comprises an unitary two-layer structure consisting of a light guide layer and a light reflective layer attached on the light guide layer. A plurality of light scattering particles are dispersed in the light guide layer adjacent to an interface between the light guide layer and the light reflective layer. The compound optical film can reduce the thickness of backlight module while the compound optical film is used in backlight module. The present art also relates to a manufacturing method for the compound optical film.02-07-2013
20090128913Diffusion Plate and Diffusion Plate Assembly - The invention provides a diffusion plate and a diffusion plate assembly. The diffusion plate is made from transparent material. Pluralities of bar-type patterns are disposed on the emission surface of the diffusion plate. The outline of these patterns has a first curve and a second curve. The protruding direction of the first curve and the second curve are inversed. The second curve is an arc whose radius curvature is between 0.05 mm and 0.3 mm.05-21-2009
20100110551LIGHT EXTRACTION FILM WITH HIGH INDEX BACKFILL LAYER AND PASSIVATION LAYER - A multifunctional optical film for enhancing light extraction includes a flexible substrate, a structured layer, a high index backfill layer, and an optional passivation layer. The structured layer effectively uses microreplicated diffractive or scattering nanostructures located near enough to the light generation region to enable extraction of an evanescent wave from an organic light emitting diode (OLED) device. The backfill layer has a material having an index of refraction different from the index of refraction of the structured layer. The backfill layer also provides a planarizing layer over the structured layer in order to conform the light extraction film to a layer of an OLED display device. The film may have additional layers added to or incorporated within it to an emissive surface in order to effect additional functionalities beyond improvement of light extraction efficiency.05-06-2010
20100321783METHOD OF MAKING ANTIREFLECTIVE ROUGHENED SURFACE AND LENS BARREL WITH ROUGHENED SURFACE MADE BY THE METHOD - A method of turning the surface of a die, which is used to make a product, into an antireflective roughened one includes the steps of: a) producing a first roughness on the surface of the die; and b) producing a second roughness, which is smaller than the first roughness, on the surface of the die on which the first roughness has already been produced.12-23-2010
20090153972TRANSLUCENT SUBSTRATE, PROCESS FOR PRODUCING THE SAME, ORGANIC LED ELEMENT AND PROCESS FOR PRODUCING THE SAME - The present invention provides an organic LED element in which the extraction efficiency is improved up to 80% of emitted light. Further, the invention relates to an electrode-attached translucent substrate having a translucent substrate, a scattering layer formed over the glass substrate and containing a base material having a first refractive index for at least one wavelength of wavelengths of emitted light of an organic LED element and a plurality of scattering materials positioned in the base material and having a second refractive index different from that of the base material, and a translucent electrode formed over the scattering layer and having a third refractive index equal to or lower than the first refractive index, in which distribution of the scattering materials in the scattering layer decreases from the inside of the scattering layer toward the translucent electrode.06-18-2009
20100027124ANTI-GLARE FILM, METHOD OF MANUFACTURING THE SAME, AND DISPLAY APPARATUS USING THE SAME - An anti-glare film is provided and includes a substrate and an anti-glare layer which is formed on the substrate and contains fine particles. The anti-glare layer has micro concave/convex shapes on the surface. The micro concave/convex shapes of the anti-glare layer are formed by coating the substrate with a coating material containing the fine particles and aggregating the fine particles by a convection of the coating material. A thickness of the anti-glare layer is equal to or larger than a mean diameter of the fine particles and is equal to or less than three times as large as the mean diameter of the fine particles. The fine particles are constructed substantially by fine particles having particle sizes less than twice as large as the thickness of the anti-glare layer.02-04-2010
20090290220ANTI-GLARE FILM, METHOD FOR MANUFACTURING, THE SAME, AND DISPLAY DEVICE USING THE SAME - An anti-glare film has a plurality of diffuser elements, and has specified optical properties. The ratio of I(α+1)/I(α) is more than 0.1 to 0.6, where I(α) is an intensity of a light reflected toward an arbitrary angle α of 10° or less from a specular reflection direction of an incident light upon the surface at an angle of 5° to 30° from the surface normal, and I(α+1) is an intensity of a reflected light deviated from the arbitrary angle α by 1° in a wide-angle direction. The gain of a light reflected in the direction at 20° or more from the specular reflection direction of the incident light is 0.02 or less, in which the gain is obtained by normalizing a reflected light intensity using a specular reflection intensity of a standard diffuse plate as 1. The diffuser elements have an average space therebetween of 50 to 300 micrometers.11-26-2009
20100091374Optical Multilayer Body, Polarization Plate Using Same, and Image Display - There is provided an optical laminate which has anti-dazzling properties and can realize excellent glare preventive properties and black reproducibility (gradation rendering of black at low brightness). The optical laminate comprises: a light transparent base material and an anti-dazzling layer or a light diffusion layer provided on the light transparent base material, wherein the outermost surface of the anti-dazzling layer or light diffusion layer has a concavoconvex surface, and the anti-dazzling layer satisfies the following requirements: Sm is not less than 100 μm and not more than 600 μm, θa is not less than 0.1 degree and not more than 1.2 degrees, and Rz is more than 0.2 μm and not more than 1 μm, wherein Sm represents the average spacing of concavoconvexes in the anti-dazzling layer; θa represents the average inclination angle of the concavoconvexes; and Rz represents the average roughness of the concavoconvexes.04-15-2010
20130070341LIGHT REDIRECTING FILM AND DISPLAY SYSTEM INCORPORATING SAME - Optical films for redirecting light are described, and optical systems, such as display systems, incorporating such optical films are described.03-21-2013
20130050830Stent Inspection Mandrel - A covered mandrel that includes a mandrel and a covering. The mandrel has an outer surface and comprises a first material. The covering is engaged to the outer surface of the mandrel and comprises a second material different than the first material. At least a portion of the covered mandrel is configured to scatter light.02-28-2013
20090080079LIGHT DIFFUSIVE POLYCARBONATE RESIN COMPOSITION AND LIGHT DIFFUSIVE PLATE USING SAID RESIN COMPOSITION - The present invention provides a light-diffusive polycarbonate-based resin composition which includes (A) 100 parts by mass of an aromatic polycarbonate resin, (B) 0.01 to parts by mass of a light-diffusing agent, and (C) 0.1 to parts by mass of a styrene-(meth)acrylic ester copolymer, and a light-diffusing plate formed from the composition. The light-diffusive polycarbonate-based resin composition can be injection-molded to form a light-diffusing plate having satisfactory precision in thickness for use in comparatively large liquid crystal displays having a size larger than 20 inches.03-26-2009
20090316268QUARTZ GLASS COMPONENT WITH REFLECTOR LAYER AND METHOD FOR PRODUCING THE SAME - Methods for producing a quartz glass component with reflector layer are known in which a reflector layer composed of quartz glass acting as a diffuse reflector is produced on at least part of the surface of a substrate body composed of quartz glass. In order, taking this as a departure point, to specify a method which enables cost-effective and reproducible production of uniform SiO12-24-2009
20090040618LIGHT DIFFUSER PLATE - An object of the present invention is to provide a light diffuser plate (02-12-2009
20090091837LIGHT GUIDING FILM - A light guiding film is provided including a main body, and a light diffusion structure comprising a plurality of micro concave lenses arranged in a first direction and a second direction to form a second dimensional array and the curvature of each concave lens and the junction of the concave lenses are different from zero. Light from a light source passes through the light diffusion structure and is refracted into the main body and then propagates in the main body by total reflection.04-09-2009
20090091836Turning film having multiple slopes - The present invention provides a light redirecting article for redirecting light toward a target angle, the light redirecting article comprising: an input surface comprising a plurality of light redirecting structures each light redirecting structure having a near surface having two slopes, sloping away from normal in one direction as defined by a first inclination base angle β04-09-2009
20110058257OPTICAL ELEMENT - The present invention provides an optical element, which comprises: 03-10-2011
20090015925OPTICAL DIFFUSER FOR PRODUCING A CIRCULAR LIGHT FIELD - The optical diffuser has a transparent base body with a base body surface, which is divided into facets. Each facet has an elevation or a depression correlated or associated with a second curved surface. Respective facets have correspondingly different geometrical shapes. In some embodiments the respective apexes (S) of the elevations or depressions are arranged along a spiral, especially an Archimedean spiral. In other embodiments the apexes (S) are defined by coordinates (x01-15-2009
20090009871SYSTEM AND METHOD FOR REDUCING VISIBLE SPECKLE IN A PROJECTION VISUAL DISPLAY SYSTEM - The invention provides an apparatus for reducing speckle in a projection visual display (PVD) system, a method of reducing visible speckle in a PVD system and a PVD system incorporating the method or apparatus. In one embodiment, the apparatus includes a diffuser interposable in an optical path of a PVD system and a diffuser actuator having a single drive axis configured to cause the diffuser to travel in a lissajous curve at least partially transverse to the optical path.01-08-2009
20120194914DIFFUSING DEVICE FOR DIFFUSING LIGHT, AND SAFETY-GLASS PANEL, LIGHT SOURCE AND GREEN-HOUSE COMPRISING DIFFUSING DEVICE - The invention relates to a diffusing device (08-02-2012
20100296169ANTI-GLARE FILM, METHOD OF MANUFACTURING SAME, AND DISPLAY DEVICE - An anti-glare film includes a base having an irregular surface and a hard coat layer disposed on the irregular surface of the base. The surface of the hard coat layer has an irregular shape following the irregular surface of the base. The hard coat layer is obtained by applying an ultraviolet curable resin composition to the irregular surface of the base, followed by drying and curing. The ultraviolet curable resin composition contains a monomer and/or oligomer having two or more (meth)acryloyl groups, a photopolymerization initiator, an inorganic oxide filler, a viscosity modifier, and a conductive polymer.11-25-2010
20090122409LIGHT-TRANSMITTING SCATTERER AND USE THEREOF - To provide a light scatterer with high heat resistance, small light absorption and high light stability or heat resistance, and a backlight structure, an eye-safe semiconductor and the like using the light scatterer. There are provided a light-transmitting scatterer comprising a solidified body in which at least two or more oxide phases selected from a single metal oxide and a complex metal oxide are formed to be continuously and three-dimensionally entangled with each other; and a backlight structure and an eye-safe semiconductor laser, each using the light scatterer.05-14-2009
20110164321DIFFUSING FILM HAVING MICRO LENS PATTERN AND EMBOSSED PATTERN - A diffusing film may have a microlens pattern and an embossed pattern on the surface thereof. The diffusing film includes a light entrance plane for receiving incident light, a light exit plane opposite the light entrance plane, the light exit plane for transmitting light, a plurality of microlenses on a surface of the light exit plane of the diffusing film, microlenses of the plurality of microlenses being spaced apart from one another, and a separation plane between the plurality of microlenses, the separation plane having an embossed pattern on a surface thereof.07-07-2011
20110069392LIGHT DIFFUSING SILICONE RUBBER COMPOSITION AND MOLDED PART - A light diffusing silicone rubber composition is provided comprising a silicone rubber compound having an overall transmittance of at least 70% when measured in a cured sheet of 2 mm thick, and a light diffusing agent added and dispersed in the silicone rubber compound. The light diffusing agent is in the form of poly(meth)acrylate resin, polystyrene resin or (meth)acrylate-styrene copolymer microparticulates having an average particle size of 0.3-100 μm.03-24-2011
20080266665Lens system for traffic signal lighting - A traffic light compound lens system is presented that utilizes two Fresnel lenses to provide a more efficient lens system with better light directing capabilities than a single lens system. The optical power of each Fresnel lens is less than that required for the single lens system. Due to aberration reduction, the compound lens system has less geometrical aberration than a single lens system, especially over a larger field of view, and has improved directionality. In addition, the compound lens system has better collection efficiency.10-30-2008
20100142055OPTICAL ELEMENT, DIRECTIONAL DIFFUSION FILM, AND METHOD OF MANUFACTURING OPTICAL ELEMENT - The present invention provides an optical element having a new structure that can he applied to a directional diffusion film suitably with a simpler process than before. An optical element includes a plurality of through holes in a transparent film matrix. The plurality of through holes are placed in a state where axial directions thereof are approximately in parallel with one another, and the axial directions of the through holes are inclined or approximately parallel to a thickness direction of the transparent film matrix.06-10-2010
20090002832Antiglare film and transmissive liquid crystal display - An antiglare film satisfies both (1) high antiglare property in the front direction and (2) absence of white blurring. One embodiment of the invention is an antiglare film provided with an antiglare layer on a transparent substrate, wherein the antiglare layer has a rugged structure on the surface opposite to the transparent substrate; the 5° reflectance of the antiglare film surface on the antiglare layer side is in a range of from 0.30% to 0.70%; the antiglare film surface on the antiglare layer side is provided with a rugged structure having arithmetic average roughness (Ra01-01-2009
20100033826BRIGHTNESS ENHANCING FILM COMPRISING NANOCOMPOSITE STRUCTURE HAVING IMPROVED CRACK RESISTANCE - Microstructured films such as brightness enhancing films, polymerizable resin compositions comprising an organic component and surface modified nanoparticles, and surface modified nanoparticles are described. The microstructured film has a polymerized structure comprising the reaction product of the polymerizable resin composition (e.g. having a refractive index of at least 1.58). The cured nanocomposite (e.g. structure) can exhibit improved crack resistance. In some embodiments, the flexibility is expressed in terms of a cylindrical mandrel bend test property (e.g. a mandrel size to failure of less than 6 mm or a mandrel size to failure according to the equation D=1000(T/0.025−T) wherein T is the thickness in millimeters of a (e.g. preformed base layer). In other embodiments, the flexibility is expressed in terms of a tensile and elongation property (e.g. a tensile strength at break of at least 25 MPa and an elongation at break of at least 1.75%).02-11-2010
20090310222MULTILAYER OPTICAL FILM STRUCTURES HAVING IMPROVED PROPERTIES AND THE USE THEREOF - The present invention relates to an optical film structure having improved properties and comprising at least one prism film and/or diffuser film as well as a multilayer optical film, wherein the multilayer optical film has at least one top film having an outer layer directed towards the prism film and/or diffuser film and made from a plastics composition containing a transparent thermoplastic and at least one quaternary ammonium salt of a perfluoroalkylsulfonic acid as lubricant additive. According to the invention the outer layer has at least one coefficient of sliding friction of <0.30 relative to the prism film and/or diffuser film measured in accordance with ASTM D 1894-06, with a roughness R3z of >5 μm (R3z in accordance with ISO 4288). The invention also provides a backlight unit containing the improved film structure and the use of the optical film structure according to the invention for liquid crystal screens.12-17-2009
20100085643MOLDED MATERIAL AND THE DISPLAY DEVICE MANUFACTURED BY USING THE MOLDED MATERIAL - Disclosed related to a display device according to the present invention comprising an external housing; a display module accepted into the external housing; and an image signal processing unit supplying image signals to the display module, and the external housing including a regular reflection unit regularly reflecting lights from outside and a diffused reflection unit diffusely reflecting lights from outside. It is advantageous that the normal watching of the screen while the watching of the display device is not disturbed, and that the satisfactory of the users is improved with a predetermined pattern when the display device is not being used. Further, it is also advantageous that the area of gloss may be controlled as controlling the relative area of the regular reflection unit and the diffused reflection unit.04-08-2010
20100118408DISPLAY DEVICE AND METHOD OF FABRICATING THE SAME - The present invention provides a display device and a method of fabricating the same. The display device includes a substrate, a transflective layer including first diffusive layers and second diffusive layers alternately arranged on the substrate, the first diffusive layers including a first diffusive material having a first refractive index, and the second diffusive layers including a second diffusive material having a second refractive index different from the first refractive index, a plurality of via holes formed in the transflective layer, and a light-emitting layer disposed on the substrate.05-13-2010
20110267694OPTICAL FILM - An optical film includes a light transmissive substrate having a first surface and a second surface opposite thereto, strip protrusions on the first surface, and protruding structures on crest lines of the strip protrusions. Each strip protrusion has two strip surfaces. Each protruding structure has a protruding end protruding from the crest line of the corresponding strip protrusion and two wing portions on the strip surfaces of the corresponding strip protrusion. Each wing portion extends from the protruding end to a place between the crest line and a valley line. A length of the protruding structure parallel to an extension direction of the crest line is L, a width of the protruding structure perpendicular to the crest line is W, and L/W≧1.2. At least one of a moiré phenomenon, a local adherence phenomenon, a scratching phenomenon, and a wearing phenomenon with other optical devices is effectively mitigated.11-03-2011
20110199686Light Diffusion Cell For Laser Light, Light Source Device And Image Display Device Using Same - The present invention relates to a light diffusion cell for laser light where in a transparent cell in which a liquid can be sealed, a fine particle dispersion in which fine particles having an average particle size of 100 nm or more and 1.5 μm or less are colloidally dispersed in a liquid medium transmitting light, a same light diffusion cell comprising a reflection mechanism recursively using reflection light of incident light, a laser light source device comprising said light diffusion cell and a semiconductor laser light source and an image display device comprising said light diffusion cell or said laser light source device, and said light diffusion cell significantly reduce or remove speckle noise of semiconductor laser light. In addition, said light diffusion cell has an easy constitution, occupies a smaller volume and can be easily incorporated in any type of image display device using laser light. Therefore, it is possible to significantly reduce or remove speckle noise without large-sizing of an image display device using laser light or a higher cost-up.08-18-2011
20110170194OPTICAL SHEET AND DISPLAY DEVICE INCLUDING THE SAME - An optical sheet and a display device including the optical sheet are disclosed. The optical sheet includes a plurality of layers disposed on an observer side relative to an image source and capable of controlling light from the image source and transmitting the light to the observer side. At least one layer of the plurality of layers is an optical functional layer which includes: light transmissive portions having a trapezoidal cross section and arranged in parallel along a sheet face to be capable of transmitting the light; and light absorbing portions having a wedge-shaped cross section and arranged in parallel between the light transmissive portions to be capable of absorbing the light. The front transmittance x and the diffuse reflectance y of the optical functional layer satisfy a predetermined relationship.07-14-2011
20090316270DIFFUSER-INTEGRATED PRISM SHEET FOR BACKLIGHT UNITS AND METHOD OF MANUFACTURING THE SAME - Disclosed is a diffuser-integrated prism sheet, in which diffuser layers are provided on the upper and lower surfaces of the prism sheet and prism-shaped protrusions are formed in the prism sheet. The prism sheet for backlight units includes a lower diffuser layer having a light diffusion structure, a lower layer formed on the lower diffuser layer, a first intermediate layer formed on the lower layer and having prism-shaped protrusions formed parallel to each other, a second intermediate layer formed on the first intermediate layer, an upper layer formed on the second intermediate layer, and an upper diffuser layer formed on the upper layer and having a light diffusion structure, wherein an air layer is formed between the lower surface of the second intermediate layer and the valleys of the prism-shaped protrusions of the first intermediate layer. Also, a method of manufacturing the diffuser-integrated prism sheet is provided.12-24-2009
20090262429Antiglare Light Diffusing Member and Display Having Antiglare Light Diffusing Member - The purpose is to provide an antiglare light diffusing member that can satisfy both of external light reflection preventiveness and good contrast when being used for a display. The antiglare light diffusing member is made to be an antiglare light diffusing member having an antiglare light diffusing layer including a binder matrix and particles on a transparent base material, wherein the two types of surface roughness (Ra10-22-2009
20090279175Optical diffuser film with linear domains of varying diffusion - The present invention provides an optical diffuser film with linear domains of varying diffusion, the linear domains comprising light scattering particles located on at least one surface of the film, wherein the linear domains are tapered such that the thickness at a center of a cross section of the linear domain is thicker than that at an edge of the linear domain.11-12-2009
20080297908OPTICAL SHEET AND DISPLAY UNIT USING THE SAME - Provided is a contrast enhancing sheet having an excellent bright room contrast function and laid on the screen of a display unit, comprising a plurality of light transmitting portions each having a trapezoid-like sectional shape in a predetermined direction, and a plurality of light absorbing portions each having a wedge-like sectional shape, the top side of the trapezoid-like sectional shape of the light transmitting portion being adjacent to the bottom side of the wedge-like sectional shape of the light absorbing portion, wherein a light diffusion means is provided at the top side of the trapezoid-like sectional shape of the light transmitting portion.12-04-2008
20100103525OPTICAL SHEET AND DISPLAY - An optical sheet capable of enhancing contrast is provided. The optical sheet includes a layer configured to control light incident on the layer and then allow the light to exit towards the observer side. The optical sheet includes: an optical functional sheet layer (04-29-2010
20090168183OPTICAL MEMBER AND DISPLAY HAVING THE SAME - The present invention relates to an optical member for controlling light refraction and a display. An optical member of the present invention includes a base material and a foaming portion having a large number of foam elements. According to the present invention, a reflection or diffusion sheet can be manufactured by controlling the size of foam elements in the optical member. In addition, there is provided an optical member, which is formed of a foaming resin, which has no light diffusing agent in a base material layer and does not require a conventional stretching process, thereby securing light scattering power.07-02-2009
20080278818OPTICAL PLATE AND BACKLIGHT MODULE USING THE SAME - An exemplary optical plate includes a transparent plate unit. The transparent plate unit includes a light output surface, a bottom surface, a diffusion layer, and a lamp-receiving portion. The bottom surface is opposite to the light output surface. The diffusion layer is formed on the light output surface. The lamp-receiving portion is defined in the bottom surface. A backlight module using the present optical plate is also provided.11-13-2008
20080252980OPTICAL ARTICLE AND METHOD OF MAKING - Disclosed herein is an optical article having a top layer with a structured surface that collimates light, a core layer secured to the top layer opposite the structured surface, and a bottom layer secured to the core layer opposite the top layer. Either the top layer or the core layer includes a first extrudable polymer having a flexural modulus of greater than 2.5 GPa, and the other layer includes a second extrudable polymer having a flexural modulus of 2.5 GPa or less, an impact strength of greater than about 40 J/m, and tensile elongation at break of greater than about 5%. The bottom layer includes a third extrudable polymer. The bottom layer of the optical article may be structured to diffuse light. One or two optical articles may be secured to an optical film such as a polarizer film. Methods and display devices are also disclosed herein.10-16-2008
20080297907Seamless molded reflectant material - A reflector device for reflecting light from an LED and the like is provided. The reflector device comprises a reflectant material and a three-dimensional reflector formed from the reflectant material with the reflector having a top and a base and the reflector being entirely free from seams from the top to the base.12-04-2008
20090097123Light diffusing articles - A light diffusing article that has, on at least one surface, convergent lens particles or divergent lens particles.04-16-2009
20100208352GLARE-PROOFING AND LIGHT-TRANSMITTING HARD COAT FILM - The present invention provides a which comprises a cured resin layer (A) of a curable composition containing an active energy ray curable compound and a microparticle dispersed therein and a cured resin layer (B) of a curable composition containing an active energy ray curable compound and a microparticle dispersed therein, and the layer (A) and the layer (B) being laminated in order on at least one surface of a light-transmitting substrate film, wherein a total film thickness of the layer (A) and the layer (B) is 1 to 10 μm, a microparticle A having an average particle size of 0.5 to 10 μm is compounded in the layer (A) in an amount of 0.5 to 60 parts by mass to 100 parts by mass of an active energy ray curable compound, and a microparticle B having an average particle size which is less than an average particle size of the microparticle A is compounded in the layer (B). The glare-proofing and light-transmitting hard coat film of the present invention can have a satisfactory level of a glare-proofing property and display a black color on an image more intensely.08-19-2010
20090161221Multi-Layered Light Diffusion Plate and Liquid Crystal Display Device Comprising the Same - Disclosed herein is a multi-layerd light diffusion plate, in which the multi-layered light diffusion plate is manufactured by coextruding a transparent layer comprising an amorphous transparent thermoplastic resin and a light diffusion layer comprising an amorphous transparent thermoplastic resin and transparent particles, so that the manufacturing process thereof is simple and efficient, and which has excellent light transmissivity and light diffusivity, high brightness, and high brightness uniformity, thereby improving viewing angle characteristics, and to a liquid crystal display device comprising the same.06-25-2009
20090213464Light polarizing sheet and manufacturing method for same - Provides a light polarizing sheet which is easy to manufacture, offers the functionality of conventional multiple sheet structures, and satisfies both the luminance and viewing angle characteristics required for liquid crystal televisions and the like.08-27-2009
20080316602Antiglare film - An antiglare film comprises a transparent substrate; and an antiglare layer on the transparent substrate, the layer including a binder matrix, organic particle A and organic particle B having an average particle diameter smaller than an average particle diameter of particle A, organic particle A and organic particle B dispersed in the binder matrix. An antiglare film having of the present invention can have the following features: good antiglare property; no white blur; high abrasion resistant property; less dazzling; and not whitened.12-25-2008
20080316601Method for Manufacturing a Hybrid Microlens - The present invention provides a method for manufacturing hybrid microlenses of a light guiding plate using a semiconductor reflow process, comprising: a first step of aligning a mask on a substrate coated with a photoresist, wherein the mask is formed with a first region through which light can be transmitted and a plurality of second regions through which light cannot be transmitted, and the second regions have different sizes and shapes to form hybrid arrays; a second step of performing slant light exposure and vertical light exposure at least once in such a manner that light radiated from the top to the bottom of the second regions forming the hybrid arrays has an unsymmetrical inclination angle in at least one direction; a third step of developing the slant light-exposed substrate to obtain hybrid photoresist posts with various sizes and shapes; a fourth step of performing a reflow process to allow the hybrid photoresist posts to be curved so that a hybrid microlens pattern can be obtained; a fifth step of fabricating a depressed stamper with the hybrid microlens pattern engraved in a depressed fashion therein; and a sixth step of forming a light guiding plate by using the depressed stamper as a mold so that the hybrid microlens pattern can be formed in a raised pattern in the light guiding plate.12-25-2008
20090080078Optical film having light-concentrating and light-scattering structured layer - An optical film comprises: a transparent substrate; and a hybrid structured layer formed on the transparent substrate and including an upper structured portion composed of a plurality of light-concentrating units, such as prisms, formed on an upper portion of the hybrid structured layer for light concentrating, and a light scattering portion formed on a lower or bottom portion of the hybrid structured layer for light diffusing, thereby forming an optical film for simultaneously enhancing the brightness and light uniformity of the optical film and the optical devices made therefrom.03-26-2009
20090086325Method and apparatus for frit sealing with a variable laser beam - A beam shaper is implemented to seal an OLED. The beam shaper comprises a first and second lens and a beam shaper. Changing the relative position of the first, second lens and beam shaper relative to each other enables the beam shaper to generate laser beams with different shapes and intensity profiles.04-02-2009
20090316269OPTICAL SHEETS - Disclosed is an optical film having an optical structure, such as a prism film or sheet, which is a constituent of a backlight unit. The optical film includes an optical structure layer having a plurality of optical structures, the surface of which is formed with irregularities, and the irregularities are formed on the surface of the light-collecting optical structure to satisfy predetermined conditions, thus effectively realizing a light-diffusing function, thereby eliminating the need to additionally mount a diffusion film or a protection film. When a particle dispersion layer is further formed on the surface of a transparent substrate opposite the surface having the optical structure layer, damage due to friction to prism films or other sheets may be prevented during the layering of the prism films or transport, thus obviating the use of a plurality of optical films.12-24-2009
20100149644LIGHT-DIFFUSING POLYCARBONATE RESIN COMPOSITION AND LIGHT-DIFFUSING PLATE - A polycarbonate-base light-diffusing resin composition contains: (A) 100 parts by mass of an aromatic polycarbonate resin; (B) 0.01 to 10 parts by mass of a light diffusing agent; (C) 0.05 to 5 parts by mass of a light resistant agent, the light resistant agent being one or more light resistant agent selected from a malonate-base compound, an oxalylanilide-base compound, a benzotriazole-base compound and an acrylic resin having a side chain of a benzotriazole-base skeleton; and 0.01 to 1 parts by mass of an ester compound of fatty acid and multivalent alcohol. By molding the composition by injection molding or the like, a light diffusing plate is obtained.06-17-2010
20100188751OPTICAL FILMS WITH INTERNALLY CONFORMABLE LAYERS AND METHOD OF MAKING THE FILMS - A co-extrusion method for making a replicated film. The method includes the steps of providing at least three materials and co-extruding them between a nip roll and a structured roll. The materials include a backside layer material, a core layer material, and a replicated layer material. The structured roll has a surface structure that is replicated onto the replicated layer, and the core layer is an internally conformable layer that conforms with the replicated layer.07-29-2010
20100188753COLLIMATING MODULE AND DEVICE FOR ZERO OVERFILL ILLUMINATION APPLICATIONS WITH BEAM WIDTH CONTROL - A collimating module is presented. The collimating module comprises a rounded light entry side and a rectangular light exit side. A collimating device is also presented, and a method for providing collimated light. The collimating device comprises a first collimator having a light entry side and a light exit side, a scattering component having a light entry surface arranged adjacent to said light exit side, and a light exit surface. The collimating device further comprises a collimating module having a light entry side arranged adjacent to said light exit surface.07-29-2010
20100014164DIFFUSE REFLECTOR, DIFFUSE REFLECTIVE ARTICLE, OPTICAL DISPLAY, AND METHOD FOR PRODUCING A DIFFUSE REFLECTOR - Disclosed is a diffuse reflector comprising a consolidated nonwoven sheet having a thickness standard deviation of about 15 μm or less and a photopic reflectance of at least about 94% over the wavelength range of 380 nm to 780 nm. Further disclosed is a diffuse reflective article and optical display utilizing such a diffuse reflector, a method for producing such a diffuse reflector, and a method of improving light reflectivity utilizing such a diffuse reflector.01-21-2010
20100259826PLANAR PLASMONIC DEVICE FOR LIGHT REFLECTION, DIFFUSION AND GUIDING - A planar plasmonic device includes a first material layer having a surface configured to receive at least one photon of incident light. A patterned plasmonic nanostructured layer is disposed adjacent and optically coupled to the first material layer. The patterned plasmonic nanostructured layer includes a selected one of: a) at least a portion of a surface of the patterned plasmonic nanostructured layer includes a textured surface, and b) at least one compound nanofeature including a first material disposed adjacent to a second material within the compound nanofeature.10-14-2010
20100259825COMPOSITE BRIGHTNESS ENHANCEMENT FILM HAVING TWO-PHASE HAZING LAYER - A composite brightness enhancement film having a two-phase hazing layer is provided, and includes a substrate, a two-phase hazing layer and a brightness enhancement structure layer. The substrate has a light inputting surface and a light outputting surface on which the two-phase hazing layer is formed. The two-phase hazing layer includes at least two resin material uniformly mixed with each other. The at least two resin material is incompletely dissolved into each other, and has different refractive indexes from each other, so that the two-phase hazing layer can be used to diffuse and haze a light. The brightness enhancement structure layer is formed on the two-phase hazing layer, and has a plurality of brightness enhancement micro-structures for enhancing the light.10-14-2010
20100188752DIFFUSER TO BE DETACHABLY MOUNTED ON A REFLECTOR SCREEN OR THE LIKE - A diffuser for releasable fastening to a reflector screen having screen spokes, includes a diffuser element and a fastening apparatus to fasten the diffuser element to the reflector screen. The fastening apparatus has a plurality of fastening elements constructed and adapted to receive corresponding screen spokes of the reflector screen. The fastening elements are constructed to apply a spring action and each fastening element has an opening to receive one screen spoke.07-29-2010
20100188754LIQUID CRYSTAL DISPLAYS WITH LAMINATED DIFFUSER PLATES - In a liquid crystal display (LCD), for example an LCD monitor or an LCD-TV, a number of light management films, including a diffuser layer, lie between the light source and the LCD panel to provide bright, uniform illumination. In some embodiments, the diffuser layer is attached to the lower side of the LCD panel. Some, or all, of the light management layers may be attached together as a laminated stack of films. In some embodiments, the diffuser layer is formed with a recessed region on one side and another optical film positioned within the recessed region.07-29-2010
20100238558COMPOSITION FOR ANTI-GLARE FILM AND ANTI-GLARE FILM PREPARED USING THE SAME - The present invention provides a composition for an anti-glare film that includes a binder resin; and an organic particle which is included in an amount of 1 to 30 parts by weight based on 100 parts by weight of the binder resin and in which concave 1 and convex patterns are formed on a surface thereof, and an anti-glare film that is manufactured by using the same. Accordingly, the storage stability of a particle that is included in an anti-glare film for high resolution is improved to increase the durability and a lifespan of products, a glare phenomenon that is caused by incident light and recognized by an user is prevented, and image clarity and contrast ratio that is realized by using an image display device are improved.09-23-2010
20120243097OPTICAL ELEMENT, OPTICAL SYSTEM, IMAGING APPARATUS, OPTICAL INSTRUMENT, AND STAMPER - An optical system includes an optical element that has a surface on which a plurality of sub-wavelength structure bodies are formed; and an imaging device that has an imaging region which senses light via the optical element, wherein the surface of the optical element has one or two or more sections that scatter incident light and generate scattered light, and wherein a sum total of components of the scattered light reaching the imaging region is smaller than a sum total of components thereof reaching regions other than the imaging region.09-27-2012
20100246015Light guide plate - A light guide plate comprises: a rectangular light exit plane and at least one light entrance plane in contact with the light exit plane, wherein the light guide plate comprises three or more structural layers disposed on each other in a direction normal to the light exit plane, each structural layer containing scattering particles dispersed therein, the structural layers having different particle densities of scattering particles.09-30-2010
20080231958Apparatus and methods for forming a reflector - The invention relates an apparatus and method for forming a diffuse reflector. In one embodiment of the invention, a diffuse reflector is formed by exposing transmissive particles of a pre-determined purity to pressure and forming a material having desired diffuse reflective properties. The transmissive particles may further be thermally treated, such as by sintering, to form material having desired diffuse reflective properties. The treated transmissive particles may then be disposed in a vessel and define a cavity therein to form an integrated cavity diffuse reflector.09-25-2008
20110128627ANTIGLARE FILM AND DISPLAY DEVICE - To an adhesive tape, which is attached to a display of a display device, an antiglare film is attached so that a resin coating layer of the antiglare film faces down and so that an antiglare layer of the antiglare film is on a front side. In this state, reflection of extraneous light can be prevented or reduced, because the antiglare layer is on the front side of the display. The antiglare film is peeled off the display of the display device, flipped over, and re-attached so that the antiglare layer faces the display of the display device and so that the resin coating layer is on the front side (upper side). In this state, the display is provided with clear and excellent clarity of an image viewed through the antiglare film 06-02-2011
20090323189Anti-Reflection Structure Body, Method Of Producing The Same And Method Of Producing Optical Member - An anti-reflection structure body comprises a base member which is made of glassy carbon and at a surface of which is formed an anti-reflection structure including a cluster of minute projections each having a diameter that contracts towards a tip thereof. The minute projections preferably have an average height of from 200 nm to 3000 nm and an average maximum diameter of from 50 nm to 300 nm, and an average pitch of from 50 nm to 300 nm. An anti-reflection structure body which is easily produced, capable of achieving an anti-reflection effect near to non-reflection, and capable of providing the minute structure even to a member having a high melting point such as quartz glass or the like by transfer or the like can be provided.12-31-2009
20090073564Optical film having light-scattering substrate and the process thereof - An optical film comprises a light-scattering substrate capable for diffusing light incoming through the substrate, and a prismatic layer having an array of a plurality of prisms and formed on the substrate for concentrating light when outgoing from the prisms, thereby obtaining an optical film for enhancing its brightness and light uniformity simultaneously.03-19-2009
20090073565PRISM SHEET AND BACKLIGHT MODULE USING THE SAME - An exemplary prism sheet includes a transparent main body. The main body includes a first surface, a second surface opposite to the first surface, a plurality of spherical depressions formed in the first surface, and a plurality of triangular pyramidal depressions and hexagonal pyramidal depressions formed in the second surface. Each of the triangular pyramidal depressions is surrounded by three adjacent hexagonal pyramidal depressions. A backlight module using the present prism sheet is also provided.03-19-2009
20090262428LIGHT DIFFUSING SHEET AND BACKLIGHT UNIT USING THE LIGHT DIFFUSING SHEET - A subject for the invention is to provide: a light diffusing sheet which, when incorporated in a direct-backlight unit, brings about high uniformity of luminance and a high average luminance; and a backlight unit having the sheet incorporated therein.10-22-2009
20090109538Polymer Particles, Process for Production Thereof, Resin Compositions Containing the Particles, and Moldings - To provide a method of producing polymer particles having favorable powder characteristics accompanied by less structural restriction of high-molecular weight fine particles; a matte resin composition and a light diffusible resin composition which include polymer particles having favorable powder characteristics, and which have favorable physical properties and are also excellent in handleability; and a molded product thereof is objected to. Provided is a resin composition which includes: polymer particles (C) which are obtained by mixing a latex of polymer fine particles (A) having a volume mean particle size of 1 to 50 μm, a polymerizable monomer (B), a polymerization initiator, a suspension dispersant and a coagulating agent, followed by granulation, and suspension polymerization, and which have a volume mean particle size of 100 to 6,000 μm, and include fine powders of no greater than 50 μm at a content of no higher than 15% by weight; and at least one substrate resin (D) selected from the group consisting of thermoplastic resins, thermosetting resins, and elastomers.04-30-2009
20100302641Optical Diffusers, Photomasks and Their Methods of Fabrication - A large mask with random apertures may be formed by forming a smaller mask (also called a cell mask) with a random pattern of transmissive apertures which is then repeatedly replicated to create the large mask. The random pattern may be created by perturbing the aperture locations by a small amount or the apertures may be randomly placed within the cell mask provided certain criteria are met. Alternatively, a large mask with a random pattern of transmissive apertures may be formed without using a cell mask. This large mask may be used to fabricate diffusers and other devices that do not suffer from the interference, diffraction and other optical effects common in devices having structures that are non-randomly patterned.12-02-2010
20130141791VARIABLE MONOCHROMATIC UNIFORM CALIBRATION SOURCE - Systems for generating uniform monochromatic electromagnetic radiation that include an electromagnetic radiation source and a bandpass filter assembly to filter electromagnetic radiation emitted by the electromagnetic radiation source. The systems also include an optical integrating sphere to receive the filtered electromagnetic radiation and to uniformly scatter the filtered electromagnetic radiation within the optical integrating sphere, wherein the optical integrating sphere comprises an output to emit the uniformly scattered, filtered electromagnetic radiation.06-06-2013
20130141792MOLDING DIE AND METHOD FOR MANUFACTURING SAME, AND METHOD FOR PROVIDING CONSISTENT GLOSSINESS - [Problem to be Solved]06-06-2013
20110249337OPTICAL DIFFUSION FILM - Measurement reference lengths of length and width are set with respect to a convex structure, and an average of vertical distances between tip points and bottom points inside a measurement reference area is calculated as an average height. An average of horizontal distances between the tip points and bottom points is calculated as an average distance. A value obtained by dividing the average height by the average distance provides a gradient ratio. An inverse tangent of the gradient ratio provides an average gradient angle. When the average gradient angle ranges from 5 degrees to 15 degrees and a standard deviation of average gradient angle ranges from 30% to 40% of the average gradient angle, a regular reflectance at a regular reflection angle with respect to incident light of an angle of 30 degrees from a normal direction of the film surface is 1% or less.10-13-2011
20110026124MULTI-FUNCTIONAL OPTIC FILM - Disclosed is a multifunctional optical sheet for use in liquid crystal displays, which can exhibit appropriate hiding performance while realizing luminance equivalent to that of a conventional case in which a prism sheet is layered on a light diffusion member, thus reducing the number of sheets to be mounted in a backlight unit.02-03-2011
20090067053OPTICAL SYSTEM AND IMAGE PICKUP APPARATUS HAVING SAME - An optical system includes an optical element formed of resin. On at least one of optical surfaces on the light incidence side of the optical element formed of resin, a plurality of depressions or protrusions of a size not larger than the wavelengths of visible light is formed without a periodic structure or in a random arrangement.03-12-2009
20110019280PRIMER LAYER FOR MULTILAYER OPTICAL FILM - Disclosed herein is an optical article including a multilayer optical film and a primer layer disposed on the multilayer optical film. The primer layer consists essentially of a sulfopolyester and a crosslinker. The multilayer optical film may be a reflective film, a polarizer film, a reflective polarizer film, a diffuse blend reflective polarizer film, a diffuser film, a brightness enhancing film, a turning film, a mirror film, or a combination thereof. A microstructured or unstructured optical layer may be disposed on the primer layer opposite the multilayer optical film. Also disclosed herein is a method of making the optical article. Also disclosed herein is a display device including the optical article.01-27-2011
20110019279LIGHT DIFFUSING FILM AND PROCESS FOR PRODUCING THE LIGHT DIFFUSING FILM - A light diffusing film having superior productivity can be obtained by using very short fibers as a substitute for conventional spherical fine particles as light diffusing material. It is possible to mass-produce very short fibers at low cost, for example, by cutting fibers. Further, it is relatively easy to obtain very short fibers with a narrow fiber length distribution. The use of this makes it possible to carry out more highly sophisticated optical design of light diffusing films.01-27-2011
20110085241TRANSMISSIVE OPTICAL MICROSTRUCTURE SUBSTRATES THAT PRODUCE VISIBLE PATTERNS - A light transmissive structure such as a light diffuser includes a substrate having optical microstructures. The optical microstructures include at least one feature that varies across the substrate, so as to produce a visible indicia relative to a viewer of the light transmissive structure. Related diffusers and methods of fabrication are also described.04-14-2011
20130155517OPTICAL FILM AND METHOD OF MANUFACTURING THE SAME - An optical film including a base film, a light spreading pattern on a first surface of the base film, a surface of the light spreading pattern facing away from the base film being an undulating surface, and a light collecting pattern on a second surface of the base film.06-20-2013
20090073566OPTICAL SHEET FOR DISPLAY UNIT AND MANUFACTURING METHOD THEREOF - In a manufacturing method of the present invention, a diffusion sheet having a flat size of a product size or more is laminated to a front surface and/or back surface of a lens sheet having flat size of the product size or more, and the stack is cut along its periphery into the product size, and the lens sheet and the diffusion sheet are bonded to each other at least one or more peripheral points thereof. This eliminates a step for individually cutting a number of films (sheets) into a product size, and a step for aligning the number of films (sheets) for lamination. In addition, the method does not cause a problem of waste of protective sheets, but provides advantages in both cost and quality. There is no problem caused in laminating a number of films, or problems caused by different thermal expansions/thermal shrinkages of a plurality of films.03-19-2009
20110128628ANISOTROPIC LIGHT-DIFFUSING FILM, ANISOTROPIC LIGHT-DIFFUSING LAMINATE, ANISOTROPIC LIGHT-REFLECTING LAMINATE, AND USE THEREOF - An anisotropic light-diffusing film, an anisotropic light-diffusing laminate, and an anisotropic light-reflecting laminate are provided which are excellent in both light transmittance and diffusivity. Also provided are a lighting equipment and a display device which employ any of the film and laminates and are excellent in light-diffusivity and brightness and in economy, etc. The anisotropic light-diffusing film is a film formed by melt-extruding a mixture of at least two thermoplastic resins incompatible with each other. The film has parallel light ray transmittance of 20-85%, haze of 10-80%, glossiness of 10-70%, and ratio of the vertical-direction diffusivity to the horizontal-direction diffusivity of transmitted light of 1.3-6.0. The anisotropic light-reflecting laminate comprises a light reflector and the anisotropic light-diffusing film laminated over at least one surface of the reflector. In the laminate, diffusivity ratio, reflectivity and diffusivity of reflected light satisfy respective specific ranges.06-02-2011
20090040617WINDOW COVER FOR A DISPLAY DEVICE, METHOD OF MANUFACTURING THE SAME AND DISPLAY DEVICE HAVING THE WINDOW COVER - A window cover for a display device includes a base plate, a printed layer, a specular layer and a light-providing sheet. The base plate has a first face and a second face opposite to the first face. The printed layer is arranged on the first face of the base plate. Further, the printed layer has a printed pattern formed. The specular layer is arranged on the printed layer to reflect a light incident to the specular layer. The light-providing sheet is placed on the second face of the base plate to provide the light to the printed layer. The display device may have improved appearance design.02-12-2009
20110080644HARD-COATED ANTIGLARE FILM, POLARIZING PLATE AND IMAGE DISPLAY INCLUDING THE SAME, METHOD FOR PRODUCING THE SAME, AND METHOD FOR EVALUATING THE SAME - A hard-coated antiglare film that has an extremely low haze value, superior anti-fluorescent lamp glare properties, and anti-face glare properties, and can improve the depth of black in black display by preventing white blur from occurring, a polarizing plate, and the like. The hard-coated antiglare film includes: a transparent plastic film substrate; and a hard-coating antiglare layer containing fine particles, which is on at least one surface of the transparent plastic film substrate, and has a total haze value in a range of 0% to 5%. The number N04-07-2011
20110080643HARD-COATED ANTIGLARE FILM, POLARIZING PLATE AND IMAGE DISPLAY INCLUDING THE SAME, AND METHOD FOR EVALUATING THE SAME - A hard-coated antiglare film that has superior antiglare properties, and reflection properties even when a haze value is low, and can improve the depth of black in black display by preventing “tinting” occurs specifically when a reflection is reduced, a polarizing plate, and the like. The film has a reflection intensity ratio of 3 or less, a hard-coating antiglare layer containing fine particles, and an antireflection layer. A surface of the antireflection layer has an uneven shape, and an average angle of inclination θa and an arithmetic average surface roughness Ra in predetermined ranges. At the surface of the antireflection layer, convexities exceeding a roughness mean line of a surface roughness profile in a predetermined number range, and convexities exceeding a standard line that is in parallel with the mean line and is located at a height of 0.1 μm in predetermined size and number ranges are included.04-07-2011
20100097706Optical sheet - An optical sheet is adapted for diffusing and converging light, and includes a light-transmissive base layer, a prism layer, and a plurality of diffusion regions. The base layer has a first surface and a second surface that is opposite to the first surface. The prism layer is provided on the first surface of the base layer and has a plurality of prisms, each of which has a peak and two inclined surfaces that meet at the peak. At least two of the peaks of the prisms are different in height. The diffusion regions are disposed on the inclined surfaces of the prisms. Each of the diffusion regions is in the form of a roughened surface.04-22-2010
20120200931GRADIENT LOW INDEX ARTICLE AND METHOD - A gradient optical film and an optical construction including the gradient optical film are described. The gradient optical film includes a binder, a plurality of particles, and a plurality of interconnected voids having a local volume fraction. The local volume fraction of the plurality of interconnected voids varies along a thickness direction of the gradient optical film. The refractive index of the gradient optical film can also varies along a thickness direction of the gradient optical film, as the refractive index can also depend upon the local volume fraction of the plurality of interconnected voids.08-09-2012
20120268826LIGHT DIFFUSION SHEET, METHOD FOR MANUFACTURING SAME, AND TRANSMISSIVE DISPLAY DEVICE PROVIDED WITH LIGHT DIFFUSION SHEET - A light diffusion sheet (10-25-2012
20120200930LIGHT DIFFUSION SHEET, METHOD FOR PRODUCING LIGHT DIFFUSION SHEET, AND DISPLAY DEVICE - A light diffusion sheet (08-09-2012
20120200929LIGHT EXTRACTING SUBSTRATE FOR ORGANIC LIGHT EMITTING DIODE - A light extraction substrate includes a glass substrate having a first surface and a second surface. A first light extraction region can be defined on and/or adjacent the first surface. The first light extraction region includes nanoparticles. A second light extraction region can be defined on at least a part of the second surface. The second light extraction region has a surface roughness of at least 10 nm.08-09-2012
20110255168GRATING COMPRISING SUB-GRATINGS WITH LIGHT-DIFFUSING PATTERNS - A transparent substrate including at its surface a grating of parallel lines of patterns separated by zones with a refractive index different from that of the patterns, the grating diffusing light and including at least 4 sub-gratings, each sub-grating including plural blocks of identical patterns with a width L, each block including 2 to 10 of the patterns. Centers of gravity of neighboring patterns inside a block are separated by a constant period p, the distance Db between neighboring blocks vary in a non-monotonic manner when passing from one edge of the sub-grating to the other edge of the sub-grating, while being greater than 0 times L and less than 20 times L, and so that it is at least once greater than 1.2 Db10-20-2011
20080252981Optical space transmission module - An optical space transmission module is provided, which reduces an upper limit of light output based on safety standard of laser, reduces light returned to a laser, and is made smaller in size. The optical space transmission module comprises a light emitting section 10-16-2008
20080204883PHOTOGRAPHIC DIFFUSER - A photographic light diffusing device is provided. A cowl is adapted to be mounted on a photographic light source, the cowl including an opening through which the photographic light source is visible when the cowl is mounted on the photographic light source. The cowl may also include at least one movable flap and a filter slot for a gel filter.08-28-2008
20080204885Methods for Producing a Structured Sol-Gel Layer - The present invention relates to processes for the production of a structured surface on a substrate in which a substrate is introduced into a sol which has been set in vibration or a substrate which has been set in vibration is introduced into a sol which has optionally been set in vibration. The present invention likewise relates to substrates structured in this way and to the use thereof in optical applications.08-28-2008
20090207497Diffuser with Light Condensing Function - One face of a substrate of a diffuser with a light condensing function is disposed with a plurality of prism rods; at least one inclined face of parts of prism rods is disposed with a rough diffusion face; the diffusion face may be positioned on any position of the inclined face of the prism rod; the diffusion face is disposed with a plurality of irregularly arranged raised and indented stripes perpendicular, not perpendicular or parallel to a crest line of the prism rod; chromatic dispersion can be reduced and stripes of the prism rods can be atomized effectively by utilizing the diffusion face to eliminate the occurrence of moiré fringes and elevate the yield factor.08-20-2009
20110134533Optical light diffuser component and a method for manufacturing the same - An optical light diffuser component and a method of producing the same. The component comprises at least one substrate material with an index of refraction of n06-09-2011
20110096402OPTICAL FILM COMPOSITE - The present invention relates to an optical film composite, which comprises a brightness enhancement element and a light diffusion element, wherein the light diffusion element comprises a substrate with a light diffusion layer on at least one side thereof, wherein the light diffusion element has a haze of no less than 98% as measured according to JIS K7136 standard method.04-28-2011
20100165466OPTICAL SHEET FOR DISPLAY, AND MANUFACTURING METHOD AND APPARATUS THEREFOR - An optical sheet for display use wherein two or more optical sheets are stacked therein and the optical sheets are joined to one another on one peripheral side of each by a thermoadhesive film is to be provided. Also an optical sheet for display use wherein two or more optical sheets are stacked therein and the optical sheets are joined to one another on two or more peripheral sides of each by a thermoadhesive film is to be provided. Since the optical sheets are joined to one another on one peripheral side or two or more peripheral sides of each by a thermoadhesive film, the step of cutting each of multiple films (sheets) into the product size can be omitted, and so can be the step of stacking multiple layers of films (sheets) while positioning them. Also, it is free from a problem which derives from protective sheets, resulting in advantages in both cost and quality aspects. Moreover, it is free from a problem which arises when multiple layers of films are stacked.07-01-2010
20110149403ANTI-REFLECTION FILM AND DISPLAY DEVICE INCLUDING THE SAME, AND MANUFACTURING METHOD OF ANTI-REFLECTION FILM AND MASTER FILM THEREFOR - An anti-reflection film and a display device including the same, and a manufacturing method of an anti-reflection film and a master film therefor. The anti-reflection film includes an anti-glare and anti-reflection layer, a surface of the anti-glare and anti-reflection layer having an anti-glare pattern for scattering incident light and an anti-reflection pattern.06-23-2011
20110149402DIFFUSION FILM AND PREPARATION PROCESS THEREOF - The present invention relates to a diffusion film comprising a substrate with a convex-concave microstructure layer on at least one side of the substrate wherein the diffusion film has a haze of no less than 5% and a total light transmittance of no less than 50% as measured according to JIS K7136 standard method and the convex-concave microstructure layer is formed by utilizing a coating composition comprising a polymer which is composed of a material that is the same as or similar to that of the main component of the substrate and a material that is incompatible with said polymer and applying said coating composition onto said substrate.06-23-2011
20100027125LIGHT DIFFUSING MEMBER - It is an object of the present invention to provide a light diffusing member which has excellent optical transparency and light resistance and has excellent light diffusibility despite of a small amount of filler to be added, and a method for producing the same. The light diffusing member of the present invention is a light diffusing member including a base material and ceramic particles contained in the base material, wherein the ceramic particles have a composition in which the total amount of MgO and Al02-04-2010
20090116115POLYCARBONATE LIGHT DIFFUSING RESIN COMPOSITION - The present invention provides: a polycarbonate light diffusing resin composition in which a first discoloration is a little, and particularly a photo-deterioration caused by a cold-cathode tube as a light source of liquid crystal displays is suppressed; and a light diffuser panel obtained by molding the same.05-07-2009
20080316603Diffuser prism sheet having amorphous light diffusers on prism valleys, backlight unit using the same, mold, and associated methods - A diffuser prism sheet includes a transparent base film having a first surface and a second surface, a light refractor at the first surface of the base film, the light refractor including a plurality of unit prisms having a major axis extending in a first direction and having a predetermined cross sectional shape that defines valleys between adjacent unit prisms, and light diffusers including amorphous polygonal bosses in the valleys between adjacent unit prisms.12-25-2008
20090231713LASER POINTER VISIBILITY IMPROVING FILM, POLARIZING PLATE, IMAGE DISPLAY, AND LASER POINTER DISPLAY METHOD - A laser pointer visibility improving film that can improve visibility of a laser pointer on a display screen of an image display such as a CRT, a liquid crystal display (LCD), a plasma display panel (PDP), a electroluminescence display (ELD), etc., as well as a polarizing plate, image display, and laser pointer display method using the same. A haze value H and an arithmetic average surface roughness Ra of a viewing-side surface of the laser pointer visibility improving film satisfy a relationship of the following formula (1):09-17-2009
20100254012Reflector and Manufacturing Method Thereof - Provided are a reflector that reflects incident light and comprises crystalline plastic in which a crystal region and an amorphous region are mixed, wherein the amorphous region includes a plurality of orientation layers comprising amorphous particles that are oriented in a predetermined direction, and a method of manufacturing the same. The reflector, which has high reflectance, is formed by extending a crystalline plastic material exhibiting a superior extensibility to extend the amorphous particles in the amorphous region in the predetermined direction so as to form a plurality of extension layers in the amorphous region. According to the present invention, since a reflector having a superior performance with a very improved reflectance can be provided due to a high diffuse reflectance by the extension layers in the amorphous region without a foaming process or an additional additive to increase the reflectance, the manufacturing process of the reflector is simplified and the manufacturing cost is reduced so that productivity can be greatly improved.10-07-2010
20090207496Polycarbonate Resin Composition for Light Diffusion Plates, and Light Diffusion Plate - There is provided a light diffusion plate for liquid crystal display devices which can be produced with an excellent productivity by an injection molding method, and have a thin thickness and a large size (wide area) and are excellent in dimensional stability, optical properties and mechanical strength. The present invention relates to a polycarbonate resin composition for light diffusion plates, comprising (A) 100 parts by weight of an aromatic polycarbonate resin having a viscosity-average molecular weight of not less than 12,000 and less than 15,000 and containing a low-molecular weight component having a molecular weight of less than 1,000 in an amount of not more than 2.5% by weight, and (B) 0.2 to 20 parts by weight of fine particles having a weight-average particle diameter of 0.7 to 30 μm.08-20-2009
20110051249OPTICAL DEVICE, MANUFACTURING METHOD THEREOF, AND METHOD OF MANUFACTURING MASTER - An optical device that has an antireflection function includes: a base; and a plurality of structural bodies, which are formed by convex portions or concave portions, arranged on a surface of the base with a fine pitch that is equal to or smaller than a wavelength of visible light. The plurality of structural bodies are arranged so as to form tracks of a plurality of rows on the surface of the base and form a quasi-hexagonal lattice pattern, a tetragonal lattice pattern, or a quasi-tetragonal lattice pattern, and a packing ratio of the structural bodies to the surface of the base is equal to or higher than 65%.03-03-2011
20110051248Hybrid Optical Film - A hybrid optical film includes a first layer, a second layer, and a plurality of diffusion structures. The first layer has a light entering face and a first refractive index. The second layer has a second refractive index and is disposed on a face of the first layer opposite to the light entering face, wherein the second refractive index is lower than the first refractive index. The plurality of diffusion structures are disposed on the interface of the first layer and the second layer. The diffusion structure has a third refractive index, wherein the third refractive index is between the first refractive index and the second refractive index and is selectively equal to the first refractive index and the second refractive index.03-03-2011
20110051247OPTICAL SHEETS - Disclosed is an optical sheet having a structured surface and a composition for forming optical three-dimensional patterns able to form the structured surface, which is not easily damaged by external force or a rough surface and thus facilitates the handling thereof, reduces defective rates to thus decrease the production cost and increase the production efficiency, and prevents a decrease in luminance attributable to damage.03-03-2011
20100165467ANTI-REFLECTIVE COATED GLAS PLATE - An article comprising an anti-reflective glass plate, the plate having on at least a part of at least one of its surfaces a light reflection reducing coating wherein the wherein the coating contains nano-size particles and a binder, the coating having an arithmetic average roughness of 2-50 nm, and having per reflective coated side a minimum reflection at a wavelength between 400 and 800 nm of about 2% of less.07-01-2010
20110075262Asymmetric light diffuser and methods for manufacturing the same - Asymmetric light diffuser and the methods for manufacturing the same are provided. The diffuser is preferably a transparent film made by a stress-stretch process. Particularly, a substrate doped with variant beads is formed as an anisotropic film layer after the stress-stretch process, so that the characteristics with birefringence and diffusion are incorporated. Further the asymmetric relief structure is formed on the surface of substrate by means of extrusion or co-extrusion process. A uniform light and anisotropic refraction can be formed through the diffuser, and even the partial polarization scattering can be formed due to the asymmetric refraction. The preferred embodiment of the diffuser includes a first step of preparing the mold for forming the basic surface structure of the asymmetric diffuser. Further, the substrate with surface micro-structure is formed by a roll-to-roll process. After that, the inside variant refractions and structure deformation are formed under the stress-stretch process.03-31-2011
20120099204Thermally Stable Optical Element - Designs and manufacturing methods are provided for lighting components and systems with improved performance in luminous efficacy, total lumen output, product lifetime, and form factor through the use of optical composites with improved thermal management. Some embodiments also provide designs and manufacturing methods to minimize thermal warpage and increase the rigidity of optical films and sheets through improved balance of thermal stresses.04-26-2012
20090009873Thin film bulk and surface diffuser - A voided semi-crystalline polymeric integrated optical diffuser film is provided with surface beads. The film is useful when incorporated into a display device such as an LC display.01-08-2009
20120038990OPTICAL FILM - Optical film is disclosed. The optical film includes a binder, a plurality of particles, and a plurality of interconnected voids. The volume fraction of the plurality of interconnected voids in the optical film is not less than about 20%. The weight ratio of the binder to the plurality of the particles is not less than about 1:2.02-16-2012
20100007960STAMPER FOR PRESS-MOLDING OPTICAL ARTICLES, METHOD FOR MAKING SAME AND LENS MADE THEREBY - An exemplary stamper includes molding portions arranged in an array. Each of the molding portions includes a central optical molding portion and an annular peripheral molding portion surrounding the central optical molding portion. Each molding portion is capable of facilitating formation of a respective optical article. A surface roughness of the annular peripheral molding portion is larger than a predetermined wavelength of light. The predetermined wavelength is selected according to a wavelength of light that is expected to be incident on the optical article when the optical article is in use.01-14-2010
20120300304TRANSPARENT GLASS SUBSTRATE HAVING ANTIGLARE SURFACE - A transparent glass substrate having an antiglare surface that minimizes sparkle. The antiglare surface has a roughened portion that surface that has a RMS amplitude of at least amplitude of at least about 80 nm. The antiglare surface may also include a portion that is unroughened, or flat. The fraction of the antiglare surface that is roughened is at least about 0.9, and the fraction of the surface that is unroughened is less than about 0.10. The antiglare surface has a pixel power deviation of less than about 7%.11-29-2012
20120057239LIGHT SCATTERING SHEET AND PROCESS FOR PRODUCING THE SAME - A process for producing a light scattering sheet includes: a coating step of coating a transparent support with a coating solution prepared by dissolving a resin material including at least two kinds selected from polymers and monomers phase-separable with each other in a solvent to form a coating layer; and a drying step of drying the coating layer to form a phase separated concavity and convexity structure on the coating layer by spinodal decomposition, wherein, in the drying step, high speed drying is carried out at a drying speed of 3.0 g/m03-08-2012
20120008212COMPOSITE OPTICAL FILM - A composite optical film is provided. The composite optical film sequentially includes a substrate, a light diffusion layer, and a light-gathering layer. The light diffusion layer includes a binder and plural micro beads dispersed therein. The thickness of the light diffusion layer is 2-6 times of the average diameter of the micro beads, and the distance between adjacent micro beads is smaller than the average diameter of the micro beads. The light-gathering layer has plural light-gathering micro structures.01-12-2012
20120008211LIGHT GUIDE MEMBER - A light guide member includes a first light guide film, a second light guide film, a diffuser film and an atomization film superposed together one by one. The first light guide film includes a plurality of first light guide dots and the second light guide film includes a plurality of second light guide dots staggered with the plurality of first light guide dots. The plurality of first light guide dots and the plurality of second light guide dots reflect the light towards any directions and then make the light uniformly and brightly emit out from the first light guide film and the second light guide film. The diffuser film controls the luminance and improves the uniformity of the light. The atomization film atomizes the light and solves the problem of visible dots.01-12-2012
20100097705METHOD FOR PRODUCING OPTICAL LAYERED BODY, PRODUCTION APPARATUS OF OPTICAL LAYERED BODY, OPTICAL LAYERED BODY, POLARIZER AND IMAGE DISPLAY DEVICE - There is provided a method for manufacturing an optical laminate in which properties such as a glare-proof property, an antidazzle property, and a black reproducible property for obtaining, for example, glossy black, can be simultaneously obtained. Manufacturing equipment for the optical laminate is also provided. The method for manufacturing an optical laminate having a light-transmitting substrate and a glare-proof layer formed on the light-transmitting substrate comprises a step of forming the glare-proof layer having an uneven shape on the light-transmitting substrate. When an average pitch of the surface unevenness of the optical laminate is denoted by Sm, an average slope angle of the unevenness by θa, and an average roughness of the unevenness by Rz, the uneven shape satisfies the following conditions: Sm is greater than or equal to 50 μm and less than 100 μm; θa is greater than or equal to 0.1 degrees and less than or equal to 1.0 degree; and Rz exceeds 0.2 μm and is less than or equal to 1.0 μm.04-22-2010
20120013987LIGHT SCATTERING SHEET AND METHOD FOR PRODUCING THE SAME - A light scattering sheet includes: a transparent support; and a light scattering layer on the transparent support, the light scattering layer having a phase-separated convexo-concave structure formed by spinodal decomposition of a solution containing two or more resin materials capable of phase-separation from each other are dissolved in a solvent. In the light scattering layer, the phase-separated convexo-concave structure is formed into a sea-island structure of two or more resin materials including a styrene-acrylonitrile copolymer, and a plurality of domains constituting the islands have random shapes mainly having a string shape, and a transmitted image definition measured according to JTS K 7374 using an optical comb having a width of 2.0 mm is 10% or more and less than 25%.01-19-2012
20090147365COATING SOLUTION FOR FORMING LIGHT DIFFUSION LAYER, AND LIGHT DIFFUSION PLATE - A light diffusion plate in which the adhesiveness, particularly long term adhesiveness, between a glass substrate and a light diffusion layer is good; a coating solution for forming light diffusion layer to be employed for producing this light diffusion plate; and a transmission screen, a rear projection type projection TV and a backlight unit for liquid crystal display employing this light diffusion plate; are provided.06-11-2009
20100254013FRESNEL LENS WITH CAVITIES - An exemplary Fresnel lens includes a flat emitting surface and a plurality of annular Fresnel lens elements at an opposite side thereof to the emitting surface. Each of the Fresnel lens elements has a non-lens surface perpendicular to the emitting surface and a Fresnel lens surface adjoining the non-lens surface with an acute angle. Each of the Fresnel lens elements has a plurality of spaced cavities defined in the non-lens surface.10-07-2010
20110080645HARD-COATED ANTIGLARE FILM, POLARIZING PLATE AND IMAGE DISPLAY INCLUDING THE SAME, METHOD FOR PRODUCING THE SAME, AND METHOD FOR EVALUATING THE SAME - A hard-coated antiglare film that has superior antiglare properties, allow high definition to be provided even in the case of a low haze value, can prevent white blur in an oblique direction from occurring and, and can improve the depth of black in black display, as well as a polarizing plate, and the like. The hard-coated antiglare film includes a transparent plastic film substrate and a hard-coating antiglare layer containing fine particles, which is on at least one surface of the transparent plastic film substrate. The hard-coated antiglare film has a total haze value Ht in the range of 10% to 35%. The total haze value Ht and an internal haze value Hin satisfy a relationship of 0.5≦Hin/Ht≦0.9. The surface of the hard-coating antiglare layer has an uneven shape and an arithmetic average surface roughness Ra in the range of 0.1 to 0.3 μm. The hard-coated antiglare film includes: convexities that exceed a roughness mean line of a surface roughness profile; no convexities in which line segments of portions of the mean line that cross the convexities each have a length of 80 μm or longer, and convexities that exceed a standard line that is in parallel with the mean line and is located at a height of 0.1 μm; and at least 50 convexities in which line segments of portions of the standard line that cross the convexities each have a length of 20 μm or shorter in 4-mm long portion at an arbitrary location of the surface of the hard-coating antiglare layer.04-07-2011
20100033825RETARDATION FILM - Disclosed is a film suitable for improvement of luminance, contrast and view angle of a liquid crystal display. Specifically disclosed is a retardation film having a thickness of 30-500 μm, a light transmittance of not less than 85%, and an Nz factor of not less than 10.02-11-2010
20090135490OPTICAL SHEET - An optical sheet is disclosed. The optical sheet includes a base film, a prism unit on the base film, an adhesive layer on the prism unit, and a first protective film on the adhesive layer. The prism unit is buried into the adhesive layer.05-28-2009
20090135489Light Diffusive Sheet for Backlihgt Unit and Preparation Thereof - A light diffusive sheet for a backlight unit, comprising a transparent substrate-photocured resin layer laminate having a plurality of hemispherical-shaped protrusions of varying sizes, has excellent luminance, and a wide screen view angle.05-28-2009
20110090568RESIN PARTICLE HAVING MANY RECESSES ON THE SURFACE THEREOF - The present invantion provides a resin particle having many recesses on the surface thereof, which has solvent resistance and heat resistance. More specifically, the present invantion provides a resin particle having many recesses on the surface thereof which is obtained by using a seed particle, wherein a seed particle component in the resin particle has a crosslinked structure. Since the resin particle having many recesses on the surface thereof of the present invention is excellent in solvent resistance and heat resistance in addition to light diffusing properties, the resin particle is appropriate for use, for example, in not only cosmetics containing silicone oil and the like in a preparation, a light diffusing film and a light diffusing sheet prepared by dispersing resin particles as a light diffusing agent in an organic solvent such as 2-butanone and the like in a production process, and a light diffusing plate prepared by kneading at a high shear force the resin patticles as a light diffusing agent with polystyrene or polymethyl methacrylate and the like which melts at a high temperature of approximately 300° C. in a production process.04-21-2011
20100246016GLASS HAVING ANTI-GLARE SURFACE AND METHOD OF MAKING - A glass article having an anti-glare surface. The anti-glare surface has a distinctness-of-reflected image of less than 95, and a haze of less than or equal to 50%. In one embodiment, the glass article further includes a smudge-resistant surface disposed on the anti-glare surface. Methods of making the glass article and anti-glare surface are also described.09-30-2010
20120162773OPTICAL SHEET AND METHOD FOR FABRICATING THE SAME - An optical sheet and a method for fabricating the optical sheet, wherein a diffusion pattern is formed to diffuse and condense light. The optical sheet includes a prism pattern having a plurality of mountains and ravines to condense light generated from a light source and a plurality of diffusion patterns irregularly formed on the prism pattern to diffuse the light.06-28-2012
20110181958PHOTON-ALIGNMENT OPTICAL FILM - A photon-alignment optical film includes a film substrate on which at least one layer of core/shell nanoparticles is coated. The core/shell nanoparticle layer includes a plastic substance, which is photo curable or heat curable, and a plurality of core/shell nanoparticles, which is uniformly distributed in the plastic substance. Light energy is used as a driving force to induce electrical potential of the same polarity on the surfaces of the core/shell nanoparticles to make the core/shell nanoparticles rearranged in the form of a matrix due to repulsion induced between like electrical polarity. Spacing between the particles, which is relatively constant, allows light to pass therethrough. The plastic substance is cured by light or heat to have the core/shell nanoparticles set in position to thereby form the optical film. Such an optical film features both diffusion and brightness enhancement.07-28-2011
20120134024ANTI-GLARE SURFACE TREATMENT METHOD AND ARTICLES THEREOF - A glass article including: at least one anti-glare surface having haze, distinctness-of-image, surface roughness, and uniformity properties, as defined herein. A method of making the glass article includes, for example: depositing deformable particles on at least a portion of a glass surface of the article; causing the deposited deformable particles on the surface to deform and adhere to the surface; and contacting the surface having the adhered particles with an etchant to form the anti-glare surface. A display system that incorporates the glass article, as defined herein, is also disclosed.05-31-2012
20090059378Devices, Systems, and/or Methods for Providing Illumination - Certain exemplary embodiments can provide and/or utilize a system comprising a first sheet formed of a light-diffusing material, said first sheet defining a pair of opposing faces and two pairs of opposing edges, said first sheet adapted to provide a substantially uniform illumination from at least one of said faces when light is transmitted into any of said edges; a first reflective layer adapted to reflect light toward a second face of said pair of faces; a second sheet formed of a light diffusing material; and a first light source adapted to transmit light into a first edge of said edges.03-05-2009
20090059377Antiglare Film - An antiglare film includes an antiglare layer having particles and a binder matrix on a transparent base material. An antiglare film surface on the antiglare layer side has a concave-convex structure with a ten-point average roughness (Rz03-05-2009
20090128914Diffuser plate, backlight and display have the same - A diffuser plate includes a first optical sheet having a rear surface configured to receive light from a light source and having a front surface configured to provide light to a second optical sheet, the first optical sheet having a predetermined pattern formed by a plurality of transmissive regions and a plurality of reflective regions, and a second optical sheet disposed in front of the first optical sheet, the second optical sheet including a rear surface configured to receive light from the first optical sheet, a front surface configured to emit light, and lenticular lenses on the front surface of the second optical sheet.05-21-2009
20120257281Refractive Index Distribution Structure and Manufacturing Method of the Same, and Image Display Apparatus Having the Refractive Index Distribution Structure - There is provided a method of manufacturing a refractive index distribution structure having a plurality of microparticles, suppressing density unevenness between the plurality of microparticles, capable of obtaining uniform in-plane characteristics, and capable of maintaining stability and high reproducibility. The method of manufacturing a refractive index distribution structure includes manufacturing a plurality of core-shell microparticles including a shell and a core microparticle contained in the shell, the core microparticle being made of a material having a refractive index higher than the material forming the shell and having the same core diameter, and the shell having a different shell thickness; and forming a refractive index distribution structure by arranging the plurality of core-shell microparticles on a substrate.10-11-2012
20100321784Optical Elements with Gradient Structure - The invention relates to optical elements with gradient structure, in particular for holographic applications, wherein the gradient structure is formed by a refractive index gradient and a method for production of said optical elements with gradient structure.12-23-2010
20080297906Anisotropic Diffusion Film - An anisotropic diffusion film has a high brightness, high luminance uniformity ratio and a high productivity, and is suitable essentially for a surface light source of planar display devices for liquid crystal display devices and the like, such as a direct backlight. In the anisotropic diffusion film, a stripe-shaped convex lens is formed on one surface of a substrate film. The cross-sectional shape of a plane vertical to the stripe direction satisfies the following conditions that (A-C) and the whole of light transmittance of the anisotropic diffusion film is 70% or more: A: the contour of the projecting part of the cross-sectional shape is a curved line; B: the aspect ratio of the projecting part of the cross-sectional shape is 1 or more but not more than 3; and C: the distance between the apexes of the adjacent projecting parts of the cross-sectional shape is 10 μm or more but not more than 100 μm.12-04-2008
20110235183Grooved lined mirror diffuser - A grooved lined mirror consists of a mounting substrate of plastic or similar substances whereby the surface is aligned by a plurality of chambers vertically along the substrate. These vertical separations in the substrate produce grooved lines along the perpendicular surface which is affixed by mirror film or poly gal. The substrate can be planar in shape are consist of a plurality of different angled V-shape bends to intensify effect. At least prismatic irregular surfaced sheet acts to diffuse the light reflected from the mirrored surface, thus producing enhanced angle reflected light spectra with a high intensity glow that's projected. The present invention may be applied, but not limited to, lighting, art, signs, edge moldings, shapes, logos, planters, and other surfaces.09-29-2011
20100232023ANTI-GLARE FILM, METHOD FOR MANUFACTURING THE SAME, AND DISPLAY DEVICE USING THE SAME - An anti-glare film has a plurality of diffuser elements, and has specified optical properties. The ratio of I(α+1)/I(α) is more than 0.1 to 0.6, where I(α) is an intensity of a light reflected toward an arbitrary angle α of 10° or less from a specular reflection direction of an incident light upon the surface at an angle of 5° to 30° from the surface normal, and I(α+1) is an intensity of a reflected light deviated from the arbitrary angle α by 1° in a wide-angle direction. The gain of a light reflected in the direction at 20° or more from the specular reflection direction of the incident light is 0.02 or less, in which the gain is obtained by normalizing a reflected light intensity using a specular reflection intensity of a standard diffuse plate as 1. The diffuser elements have an average space therebetween of 50 to 300 micrometers.09-16-2010
20100232022Diffuser with light condensing function - One face of a substrate of a diffuser with a light condensing function is disposed with a plurality of prism rods; at least one inclined face of parts of prism rods is disposed with a rough diffusion face; the diffusion face may be positioned on any position of the inclined face of the prism rod; the diffusion face is disposed with a plurality of irregularly arranged raised and indented stripes perpendicular, not perpendicular or parallel to a crest line of the prism rod; chromatid dispersion can be reduced and stripes of the prism rods can be atomized effectively by utilizing the diffusion face to eliminate the occurrence of moiré fringes and elevate the yield factor.09-16-2010
20120140329LIGHT GUIDE BODY WITH INTEGRAL STRUCTURE AND METHOD FOR MAKING SAME - A light guide body includes a first solidified colloid layer, a second solidified colloid layer and a third solidified colloid layer. The first solidified colloid layer has a number of light-scattering microstructures at an upper portion thereof. The second solidified colloid layer is formed on and coming into contact with the upper portion of the first colloid layer, and the second colloid layer covers the microstructures. The third solidified colloid layer is formed on the second colloid layer, and the third colloid layer has a plurality of light condensing prisms at an opposite side thereof to the second colloid layer. The light guide body has an integral structure with a number of optical functions. A method for making the light guide body is also provided.06-07-2012
20130021671LIGHT GUIDE PLATE - A light guide plate for use in a backlight module of a touch panel is disclosed. The light guide plate includes a transparent plate, and first and second adhesive layers disposed on two opposite surfaces of the transparent plate respectively. A plurality of refractive regions are spacedly arranged on at least one of the two opposite surfaces of the transparent plate. As a result, it is convenient to attach the light guide plate to any desired location and the light refracted from the light guide plate may have uniform brightness01-24-2013
20130135745ALKALI-FREE COVER GLASS COMPOSITION, AND LIGHT EXTRACTING MEMBER USING SAME - The present invention provides a glass composition and a light extracting member using the same, where the glass composition does not substantially contain a lead oxide and an alkali metal oxide and has a glass transition temperature of 530° C. or less and acid resistance property. The present invention relates to an alkali-free cover glass composition which does not substantially contain a lead oxide and an alkali metal oxide; has a refractive index (n05-30-2013
20080225394Optical element - An optical element is provided in the present invention, which comprises an element body and a plurality of microlens elements. The element body has a first surface disposed thereon. The plural microlens elements are arranged two-dimensionally on the first surface. The size and shape for each microlens elements may be different from each other and the arrangement for the plural microlens elements on the first surface may be random and arbitrary so that the optical element of the present invention are capable of performing light diffusion and light-redirecting effects without generating interference fringes.09-18-2008
20130170045LIGHT-GUIDING OPTICAL FILM, AND METHOD AND DEVICE FOR MANUFACTURING THE SAME - An optical film includes a base plate. The base plate includes a first surface and a second surface opposite to first surface. The first surface includes a plurality of bar-type protrusions arranged parallel to each other. Each of the plurality of bar-type protrusions includes an arcuate surface and a planar surface connected to the arcuate surface. The planar surface intersects with the first surface. The second surface includes a plurality of posts. The present disclosure further provides a device for manufacturing the optical film and a method for manufacturing the optical film.07-04-2013
20130208360LOW REFRACTIVE INDEX DIFFUSER ELEMENT HAVING INTERCONNECTED VOIDS - An optical diffuser layer includes a binder, a plurality of metal oxide particles dispersed in the binder, and a plurality of interconnected voids. A plurality of haze generating particles are dispersed in the binder. The optical diffuser layer has an effective refractive index of 1.3 or less.08-15-2013
20080218864OPTICAL SECURITY SYSTEM USING FOURIER PLANE ENCODING - A method of verifying the authenticity of an object is disclosed. The method may include encoding a primary image, convolving the encoded primary image with a random code, generating thereby a first reference image, transforming the first reference image, and correlating the first reference image with a second reference image.09-11-2008
20120250158DISPLAY AND ELECTRONIC UNIT - A display capable of obtaining high luminance in white display and an electronic unit are provided. The display includes: a reflective display panel; and an optical laminate disposed on the display panel, in which the optical laminate includes a plurality of anisotropic scattering films, and transmittances in a scattering central axis direction of two or more films of the plurality of anisotropic scattering films are different from each other.10-04-2012
20130094088DIFFUSE REFLECTIVE OPTICAL FILMS WITH SPATIALLY SELECTIVE BIREFRINGENCE REDUCTION - A diffusely reflective optical film includes a blended layer extending from a first to a second zone of the film. The blended layer includes first and second polymer materials separated into distinct first and second phases, respectively. The blended layer may have the same composition and thickness in the first and second zones, but different first and second diffusely reflective characteristics in the first and second zones, respectively. The difference between the first and second diffusely reflective characteristics may not be attributable to any difference in composition or thickness of the layer between the first and second zones. Instead, the difference between the first and second diffusely reflective characteristic may be attributable to a difference in birefringence of the first and/or second polymer materials between the first and second zones. The blend morphology of the blended layer may be substantially the same in the first and second zones.04-18-2013
20080204884Integrating Sphere Having Means For Temperature Control - The present invention relates to an integrating sphere for measuring a light-emitting property of a light source, and more particularly, to an integrating sphere having a means for controlling temperature inside the integrating sphere. An integrating sphere for measuring an optical property of a light source according to the present invention has a substantially spherical hollow space formed therein; a first through-hole provided such that a wire for supplying electric power to the light source installed inside the hollow space of the integrating sphere passes therethrough; and a second through-hole provided such that temperature-controlled air is supplied into the hollow space of the integrating sphere therethrough. A light source support, which has one end disposed at the center of the hollow space of the integrating sphere and the other end fixed to an inner peripheral surface so as to hermetically seal the first through-hole of the integrating sphere, is installed within the hollow space. The integrating sphere includes an air supply tube fixed to an outer peripheral surface of the integrating sphere where the second through-hole is formed, so that air can be supplied to the interior of the integrating sphere through the second through-hole; an air supply means for supplying air to the air supply tube; a temperature control means for controlling the temperature of air being supplied from the air supply means and passing through the air supply tube; and a shielding plate installed to be spaced apart by a predetermined distance from the second through-hole.08-28-2008
20080198469Optical window member - A disclosed optical window member includes a transparent synthetic resin plate comprising a surface with a protruding/recessed pattern of a predetermined fineness that causes light diffusion; and an optical thin film formed on the surface of the transparent synthetic resin plate with the protruding/recessed pattern. The optical thin film determines a component of light transmitted through the optical thin film and light reflected from the optical thin film.08-21-2008
20130182330Optical Film and Head-Up Display Device - A head-up display device includes an image module, a substrate, and an optical film. The image module has an emitting source, wherein the emitting source transmits at least one image. The substrate is disposed corresponding to the image module. The optical film is disposed on the substrate and includes at least one transmission layer, wherein each transmission layer has a plurality of transmitting column structures obliquely arranged side by side, and a longitudinal direction of the transmitting column structure has a tilt angle with respect to a normal of the substrate. The at least one image is transmitted to the optical film, and the obliquely disposed transmitting column structures cause the at least one image to scatter on the optical film.07-18-2013
20100315716Microstructure diffuser - A microstructure diffuser includes a light-entering surface, a light-emitting surface, and a plurality of microstructure portions having a first microstructure unit and a second microstructure unit. The first microstructure unit includes a first side surface, a second side surface, a top surface, a first pitch (P12-16-2010
20120281291DIFFUSER-INTEGRATED PRISM SHEET FOR BACKLIGHT UNITS AND METHOD OF MANUFACTURING THE SAME - A diffuser-integrated prism sheet is provided, in which diffuser layers are provided on the upper and lower surfaces of the prism sheet and prism-shaped protrusions are formed in the prism sheet. The prism sheet for backlight units includes a lower diffuser layer having a light diffusion structure, a lower layer formed on the lower diffuser layer, a first intermediate layer formed on the lower layer and having prism-shaped protrusions formed parallel to each other, a second intermediate layer formed on the first intermediate layer, an upper layer formed on the second intermediate layer, and an upper diffuser layer formed on the upper layer and having a light diffusion structure, wherein an air layer is formed between the lower surface of the second intermediate layer and the valleys of the prism-shaped protrusions of the first intermediate layer. Also, a method of manufacturing the diffuser-integrated prism sheet is provided.11-08-2012
20120281290DIFFUSER-INTEGRATED PRISM SHEET FOR BACKLIGHT UNITS AND METHOD OF MANUFACTURING THE SAME - A diffuser-integrated prism sheet is provided, in which diffuser layers are provided on the upper and lower surfaces of the prism sheet and prism-shaped protrusions are formed in the prism sheet. The prism sheet for backlight units includes a lower diffuser layer having a light diffusion structure, a lower layer formed on the lower diffuser layer, a first intermediate layer formed on the lower layer and having prism-shaped protrusions formed parallel to each other, a second intermediate layer formed on the first intermediate layer, an upper layer formed on the second intermediate layer, and an upper diffuser layer formed on the upper layer and having a light diffusion structure, wherein an air layer is formed between the lower surface of the second intermediate layer and the valleys of the prism-shaped protrusions of the first intermediate layer. Also, a method of manufacturing the diffuser-integrated prism sheet is provided.11-08-2012
20120281289LIGHT-DIFFUSION SHEET, METHOD FOR MANUFACTURING SAME, AND TRANSMISSION DISPLAY DEVICE PROVIDED WITH THIS LIGHT-DIFFUSION SHEET - A light-diffusion sheet (11-08-2012
20120281288CONTROL DEVICE - A control device is described that has a controller, an optical diffuser and a lens assembly. In use, the optical diffuser is positioned in front of an electronic display and the lens assembly projects an image displayed on the electronic display onto the optical diffuser. Also, a keyboard and/or control panel having one and/or more of the control devices is presented.11-08-2012
20130155516NANO FRACTAL DIFFUSER - A diffusive device has an array of discrete facets which may be of a size and pattern similar to a fractal. The facet dimensions can be greater than half the wavelength of incident light such that the facets substantially diffract light. A polarizing wire-grid layer comprised of an array of elongated parallel conductive wires with a period less than half the wavelength of incident light may be disposed between, beneath, or above the facets. The wire-grid polarizes the light by substantially reflecting light having an s-polarization orientation and substantially transmitting a portion of light having a p-polarization orientation.06-20-2013
20090009872Light Diffusing Sheet - A light diffusing sheet brightens frontal direction illumination and resists curl without requiring a complicated design.01-08-2009
20110310487OPTICAL BODY, WALL MEMBER, FITTING, AND SOLAR SHADING DEVICE - An optical body includes a first optical layer having a random concave-convex surface, a reflecting layer formed on the concave-convex surface, and a second optical layer formed on the reflecting layer to embed the concave-convex surface, wherein the reflecting layer is a wavelength-selective reflecting layer for diffusely reflecting, of incident light, light in a specific wavelength band and transmitting light other than the specific wavelength band therethrough.12-22-2011
20110317270ANTIREFLECTION FILM, METHOD FOR MANUFACTURING ANTIREFLECTION FILM, AND DISPLAY APPARATUS - The present application aims to provide an antireflection film having low reflectivity and suppressing glare. In at least one example embodiment, the antireflection film includes a surface that includes a moth-eye structure including multiple projections. Apexes of any two adjacent projections are apart from each other by a distance not longer than a wavelength of visible light. The moth-eye structure has sticking structures each of which includes projections with tip portions of the projections adhering to each other. Each of the sticking structures is 0.05 μm or greater and smaller than 1 μm in diameter. The sticking structures exist at a number density in planar area of the antireflection film of 0.01 pcs/μm12-29-2011
20120013986OPTICAL DISPLAY WITH OPTICAL MONOLITH - An optical device includes an optical monolith having inclusions for diffusing light.01-19-2012
20120019918SYSTEM AND METHOD FOR REDUCING VISIBLE SPECKLE IN A PROJECTION VISUAL DISPLAY SYSTEM - The disclosure provides an apparatus for reducing speckle in a projection visual display (PVD) system, a method of reducing visible speckle in a PVD system and a PVD system incorporating the method or apparatus. In one embodiment, the apparatus includes a diffuser interposable in an optical path of a PVD system and a diffuser actuator having a single drive axis configured to cause the diffuser to travel in a Lissajous curve at least partially transverse to the optical path.01-26-2012
20120019917Biooptical and Biofunctional Properties, Applications and Methods of Polylactic Acid Films - Biopolymers that may be used in optical applications are provided. Suitable biopolymers include polylactic acid and polylactic acid blends. The polylactic acid may be used with a photocatalyst such as titonium dioxide in some embodiments. In other embodiments, the polylactic acid may incorporate decorative fused recycled particles. Generally, the biopolymer may be used in applications where optical characteristics and/or fire performance are desired.01-26-2012

Patent applications in class DIFFUSING OF INCIDENT LIGHT