Patent application number | Description | Published |
20090262348 | METHOD OF MODIFYING LIGHT WITH SILICONE (METH)ACRYLATE COPOLYMERS - A method of modifying light is disclosed and includes: providing an optical element having an oriented polymer network of a silicone (meth)acrylate copolymer and exhibiting a first phase and a second phase, the first phase and the second phase being chemically connected and having different refractive indices, the first phase being continuous, and the second phase comprising a plurality of structures dispersed within the first phase; illuminating the optical element with light from a light source; and detecting polarized or directionally diffused light transmitted by the optical element. Optical elements including the polymer network and a variety of additional layers are also disclosed, as are optical devices such as prisms, display panels, lenses, and the like. | 10-22-2009 |
20100124667 | ISOTROPIC LAYER OF MULTILAYER OPTICAL FILM COMPRISING BIREFRINGENT THERMOPLASTIC POLYMER - Multilayer optical films are described comprising at least one first optical layer comprising a birefringent thermoplastic polymer having an in-plane birefringence of at least 0.15 at 632.8 nm; and at least one second optical layer having an in-plane birefringence of less than 0.040 at 632.8 nm. The second optical layer comprises a copolymerized blend of at least one birefringent thermoplastic polymer and at least one second thermoplastic polymer. | 05-20-2010 |
20100171929 | DRY ERASABLE PROJECTION ARTICLE AND SYSTEM - A communication article and system comprising a writing member having a dry erasable front surface and a projection member is disclosed. The projection member includes an asymmetric optical diffuser that scatters light in a first direction with a first viewing angle A | 07-08-2010 |
20100201242 | LIGHT CONTROL FILM AND MULTI-LAYER OPTICAL FILM STACK - Film stacks and displays incorporating the same are described. | 08-12-2010 |
20100277668 | OPTICAL FILM LAMINATES - Optical film laminates of birefringent polyester films and adhesive are disclosed. The laminates have a thickness of at least 10 mils (0.25 mm). The laminates of the invention are useful in displays having a diagonal of 37 in (94 cm) or greater. | 11-04-2010 |
20110051040 | THICK POLYESTER FILMS FOR OPTICAL ARTICLES AND OPTICAL ARTICLES - In one embodiment, the invention provides a polyethylene terephthalate film comprising a biaxially oriented and birefringent film polyethylene terephthalate film having at least one layer having a thickness of from 10 mils (0.25 mm) to 25 mils (0.64 mm), wherein the film is formed from a polyethylene terephthalate resin comprising the reaction product of dimethyl terephthalate, terephthalic acid, or a combination thereof ethylene glycol, a diol or triol monomer other than ethylene glycol and from 0.9 to 3 mol percent of a sulfonate monomer having an inorganic counterion based on 100 mol percent dimethyl terephthalate, terephthalic acid, or a combination thereof. | 03-03-2011 |
20110109966 | Multilayer Optical Film Layer Comprising Blend of Methyl Methacrylate Polymer and Styrene Acrylonitrile Polymer - Presently described are multilayer optical films comprising an optical stack comprising at least one first birefringent optical layer; at least one (e.g. isotropic) second optical layer having a birefringence of less than 0.04 at 633 nm, and optionally at least one skin layer. The second layer, skin layer, or a combination thereof comprises a blend of at least one methyl methacrylate polymer and at least one styrene-acrylonitrile polymer. | 05-12-2011 |
20110116012 | PASSIVE DAYLIGHT-COUPLED BACKLIGHT WITH TURNING FILM HAVING PRISMS WITH CHAOS FOR SUNLIGHT VIEWABLE DISPLAYS - A passive daylight-coupled display having an LCD panel, a diffuser, a turning film behind the LCD panel, and a curved reflector behind the turning film. For passive backlighting, the diffuser transmits daylight to the reflector, which reflects the daylight to the LCD panel through the turning film and provides for substantially uniform distribution of the daylight on the LCD panel for backlighting it. The turning film has prisms with chaos for an improved viewer experience. | 05-19-2011 |
20110207087 | PREFORMED MALLEABLE DENTAL ARTICLES AND METHODS - Protected hardenable dental article comprising a hardenable dental article comprising a base and at least one outer surface extending from the base, wherein at least the base and the at least one outer surface of the hardenable dental article comprise a hardenable dental material; and a multi-layer polymeric film in contact with at least a portion of the at least one outer surface; wherein the multi-layer polymeric film comprises at least two dissimilar polymers in separate layers; kits including the protected hardenable dental article; and methods of making hardenable dental articles are disclosed. | 08-25-2011 |
20110222263 | HIGH TRANSMISSION FLUX LEVELING MULTILAYER OPTICAL FILM AND RELATED CONSTRUCTIONS - A reflective film includes microlayers arranged into optical repeat units, each optical repeat unit including a negatively birefringent microlayer. The microlayers are tailored to provide the film with on-axis polarizing properties, such that normally incident light polarized along a block axis is substantially reflected and normally incident light polarized along a pass axis is substantially transmitted. On-axis transmission for the block axis may be <20%, and on-axis transmission for the pass axis may be >70%. The microlayers also provide the film with angularly dependent polarizing properties: p-polarized light incident in a block plane of incidence is substantially reflected at near-normal angles but substantially transmitted at an oblique angle. The film transmits unpolarized light incident in this plane more strongly at the oblique angle than at normal. The films can be used in direct-lit backlights, luminaires, and similar lighting systems for flux leveling to promote spatial brightness uniformity. | 09-15-2011 |
20110261436 | METHOD OF MODIFYING LIGHT WITH SILICONE (METH) ACRYLATE COPOLYMERS - A method of modifying light is disclosed and includes: providing an optical element having an oriented polymer network of a silicone (meth)acrylate copolymer and exhibiting a first phase and a second phase, the first phase and the second phase being chemically connected and having different refractive indices, the first phase being continuous, and the second phase comprising a plurality of structures dispersed within the first phase; illuminating the optical element with light from a light source; and detecting polarized or directionally diffused light transmitted by the optical element. Optical elements including the polymer network and a variety of additional layers are also disclosed, as are optical devices such as prisms, display panels, lenses, and the like. | 10-27-2011 |
20120013851 | FRONT PROJECTION SCREEN WITH HIGH CONTRAST - A light diffusing optical construction is disclosed. The optical construction includes an asymmetric optical diffuser that scatters light in a first direction with a first viewing angle A | 01-19-2012 |
20120212812 | POLARIZATION SENSITIVE FRONT PROJECTION SCREEN - A projection system is disclosed, in which a screen may have improved rejection of ambient light by having a high reflectivity at low angles of incidence for a polarization parallel to that of the projector, a low reflectivity at high angles of incidence for a polarization parallel to that of the projector, and a low reflectivity at both low and high angles of incidence for a polarization perpendicular to that of the projector. In some embodiments, for p-polarized light polarized parallel to the projector, the power reflectivity is high at low angles of incidence and decreases to a low value at high angles of incidence. In some embodiments, for p-polarized light polarized perpendicular to the projector, the power reflectivity is low at low angles of incidence. In some embodiments, for s-polarized light polarized perpendicular to the projector, the power reflectivity remains low at all angles of incidence. In some embodiments, the screen includes a thin film structure that has alternating quarter-wave layers of isotropic and birefringent materials, which are refractive-index-matched for light polarized perpendicular to the projector, which form a high reflector at normal incidence for light polarized parallel to the projector, and which exhibit Brewster's angle effects for p-polarized light polarized parallel to the projector at high angles of incidence. The Brewster's angle effect may be reached by use of a light-scattering layer that increases the effective incident refractive index. | 08-23-2012 |
20120224150 | FRONT PROJECTION SCREEN WITH HIGH CONTRAST - A light diffusing optical construction is disclosed. The optical construction includes a symmetric optical diffuser that scatters light in a first direction with a first viewing angle A | 09-06-2012 |
20130070190 | DISPLAY DEVICE AND METHOD OF LC PANEL PROTECTION - A display device uses a multilayer film ( | 03-21-2013 |
20130088783 | MULTILAYER OPTICAL FILM, METHOD OF MAKING THE SAME, AND TRANSACTION CARD HAVING THE SAME - A multilayer optical film includes alternating layers of first and second optical layers; the first optical layer comprising a first polyester, wherein the first polyester comprises first dicarboxylate monomers and first diol monomers, and from about 0.25 to less than 10 mol % of the first dicarboxylate monomers have pendant ionic groups; the second optical layer comprising a second polyester; and wherein the first and second optical layers have refractive indices along at least one axis that differ by at least 0.04. The multilayer optical film may be 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. The multilayer optical film may also be a transaction card such as a financial transaction card, an identification card, a key card, or a ticket card. A method of making the multilayer film is also disclosed. | 04-11-2013 |
20130100530 | OPTICAL STACK HAVING BIREFRINGENT LAYER OF OPTICALLY SYMMETRICAL CRYSTALLITES - An optical stack ( | 04-25-2013 |
20130101816 | MULTILAYER OPTICAL FILM - Multilayer optical film that can be used as a reflective polarizer or mirror is disclosed. The multilayer optical film comprises alternating optical layers of polyesters such as PET and PEN, copolymerized with 4,4′-biphenyl dicarboxylate. The multilayer optical film exhibits a high ratio of in-plane to out-of-plane birefringence. | 04-25-2013 |
20130321915 | GLARE REDUCING GLAZING ARTICLES - Glazing articles that reduce glare include a glazing substrate, and a reflective polarizing film article attached to the glazing substrate. The reflective polarizing film article includes a reflective polarizing film, and a reflection inhibitor layer. The reflective polarizing film articles reduce transmission of polarized light with a polarization block axis that is horizontal, and reduce horizontally polarized light to 90% or less of the horizontally polarized incident visible light. The reflective polarizing film may include a multi-layer film construction. The reflection inhibitor layer may include a tinted layer or an absorptive polarizer layer. Glazing units that reduce glare include at least one glazing substrate, at least one reflective polarizing film, and at least one reflection inhibitor layer. The glazing substrate, reflective polarizing film, and reflection inhibitor layer may or may not be in contact with one another. | 12-05-2013 |