Entries |
Document | Title | Date |
20090040627 | OPTICAL LENS, OPTICAL PACKAGE HAVING THE SAME, BACKLIGHT ASSEMBLY HAVING THE SAME, DISPLAY DEVICE HAVING THE SAME, AND METHOD THEREOF - An optical lens includes a recessed part and a refracting part. The recessed part has a substantially circular plan view and a substantially V shaped cross-section. The recessed part forms an angle of no more than an angle of about 20° with respect to a vertical line. The recessed part has a plurality of curved surfaces including different radii so that a light incident into the recessed part is totally reflected from the curved surfaces. The refracting part has a substantially circular plan view extended from the recessed part. A light incident into the refracting part and the reflected light from the recessed part are refracted from the refracting part. Therefore, a luminance uniformity and a color uniformity are improved. | 02-12-2009 |
20090080091 | Laser Diode/Pre-Scan Assembly - A laser diode/pre-scan assembly associated with a printhead for a laser printer is presented. The laser diode/pre-scan assembly includes a pair of collimation lenses that are de-centered from the axes of a pair of laser beams to direct the pair of beams inwardly in a process direction and into a single pre-scan lens. A corresponding method of constructing a laser diode/pre-scan assembly for a laser printer is also presented. | 03-26-2009 |
20090080092 | SYSTEM FOR INCREASING HORIZONTAL FIELD OF VIEW OF A CAMERA - A terrestrial imaging device includes an objective lens which accepts light within an intrinsic angular field of view onto a focal plane and two pairs of plane mirrors. The first pair of plane mirrors reflects a first light incoming ray sequentially to produce first and second reflected light rays within a roughly horizontal plane, the second reflected ray being focused by the objective lens on the focal plane. The second pair of plane mirrors reflects a second incoming ray sequentially to produce third and fourth reflected light rays within a roughly vertical plane, the fourth reflected light ray being focused by the objective lens on the focal plane. | 03-26-2009 |
20090161235 | COMPACT FOLDED THIN LENS - A thin lens consists of a first optical element which comprises a first refracting surface, wherein incoming light passes through the first refracting surface on a first optical axis. A reflecting surface changes a direction of the incoming light from the first optical axis to a second optical axis. Incoming light on the second optical axis passes through a second refracting surface. A second optical element comprises a first refracting surface, wherein incoming light passes through the first refracting surface on the second optical axis. A reflecting surface changes a direction of the incoming light from the second optical axis to a third optical axis. Incoming light on the third optical axis passes through a second refracting surface. The third optical axis is approximately parallel to, and in opposite direction from, the first optical axis. | 06-25-2009 |
20090190237 | RETROREFLECTIVE OPTICAL COLLIMATION LAYER AND DISPLAY DEVICES INCORPORATING SAME - A display comprises a backlight comprising a plurality of individually-controllable light emitters, a light modulator comprising a plurality of individually-controllable elements, and, a retro-reflective optical layer positioned between the backlight and the light modulator. The retro-reflective optical layer is configured to pass light incident thereon at an angle with respect to a normal to the retro-reflective optical layer of less than a threshold angle φ, and reflect light incident thereon at an angle with respect to a normal to the retro-reflective optical layer of greater than φ in a direction opposite and generally parallel to an incoming direction of incident light. | 07-30-2009 |
20090201594 | OPTICAL FINGER NAVIGATION DEVICE WITH A FOLDED AIR LENS - A fingerprint navigation system with a folded air lens structure and a folded air lens. The system includes a light source, a folded air lens structure, a light reflector, and a navigation sensor. The folded air lens structure is aligned to direct light from the light source to an object surface. The folded air lens structure includes a first portion and a second portion. The light reflector is aligned to direct the light from the first portion of the folded air lens structure to the second portion of the folded air lens structure. The navigation sensor is calibrated to produce a navigation image corresponding to the light directed through the folded air lens structure and the folded air lens. | 08-13-2009 |
20100053771 | FLAT PANEL LENS - A flat panel lens system as a tapered light guide that has minimal or no margin for fan out. The tapered light guide includes a thin end, and a thick end of which is a bevelled mirror or an optical equivalent. Light is injected into the thin end and the mirror is such that rays injected through a point at the thin end emerge collimated from one of the light guide surfaces, and that collimated rays injected at an appropriate angle through one of the light guide surfaces emerge from a point at the thin end. Bragg gratings can be utilized for color implementations as well. The tapered light guide can be fabricated as a single piece, by extrusion, injection molding, or the combination/variation of extrusion and injection molding, as well as other commonly known techniques. | 03-04-2010 |
20100165487 | Apparatus for Shaping of Laser Radiation - A device for shaping laser radiation, in particular for laser radiation emitted by a laser diode bar, has at least one substrate with a plurality of refractive boundary surfaces through which the laser radiation to be produced can pass in such a way that at least two partial beams of the laser radiation, which, prior to their passage, are adjacently arranged in a first direction, are adjacently arranged after their passage through the refractive boundary surfaces in a second direction which is perpendicular to the first direction. The refractive boundary surfaces are formed at a substrate or at substrates that are connected to one another. | 07-01-2010 |
20100321797 | MAGICAL IMAGE CUPS AND CONTAINERS WITH 3D DISPLAYS - An optical illusion device such as a drinking glass/cup for providing a multi-dimensional visual display. The device includes a body with tubular sidewalls extending from an opening at a first end to an opening at a second end. A base assembly is provided at the second end. The base assembly includes a top wall, a bottom wall, and a sidewall that together form or define an inner chamber. A visual display assembly is provided with a mirror element with a convex reflective surface or mirror positioned within the chamber with the reflective surface facing the top wall of the base assembly. A primary image element is provided proximate to the reflective surface such that the primary image and mirror element can be observed via the opening in the body. A framing element is included proximate to the top wall of the base assembly including background images facing the reflective surface. | 12-23-2010 |
20110038061 | CATADIOPTRIC PROJECTION OBJECTIVE - Catadioptric projection objective ( | 02-17-2011 |
20120019935 | LIGHT RAY CONCENTRATION DEVICE - A light ray concentration device includes a concentrating lens and a base for holding the concentrating lens. The concentrating lens includes a planar surface defining a number of first Fresnel zones and a convex surface facing away from the planar surface and defining a number of second Fresnel zones. The first and second Fresnel zones are coaxial with each other. | 01-26-2012 |
20120075726 | IMAGING OPTICAL SYSTEM AND IMAGING APPARATUS - An imaging optical system, which includes an imaging lens group having at least one lens, and an image side prism that bends light which has passed through the imaging lens group toward an image pickup device arranged at a predetermined position, and wherein the image side prism includes a reflection surface which reflects, toward the image pickup device, incident light proceeding from the imaging lens group and an exit surface from which light reflected from the reflection surface emerges, and wherein the image side prism has a cut surface formed by cutting off a vertex portion between the reflection surface and the exit surface such that a whole normal light incident area within which normal light is incident on the reflection surface remains, and the cut surface is a non-diffusing surface. | 03-29-2012 |
20130100543 | USING A WAVEGUIDE TO DISPLAY INFORMATION ON ELECTRONIC DEVICES - An electronic device includes an instrument panel that includes a display opening, where the instrument panel is located in a first plane; a circuit board located inside the electronic device, where the circuit board includes a display device that includes a display area, and where the display area is located in a second plane that is different from the first plane; and a waveguide that couples the display area to the display opening and guides light, and/or an image displayed in the display area, from the display area to the display opening. | 04-25-2013 |
20130141803 | APPARATUS FOR COLLECTION OF CATHODOLUMINESCENCE SIGNALS - A side entry TEM holder incorporates a miniature tilted off axis elliptical mirror to collect cathodoluminescence from the specimen and couple it efficiently into a tilted fiber optic integrated into the holder. The design is compatible with the cryogenic operation of the holder. TEM specimens are partially transparent to the electron beam, and so light can be emitted above and below the specimen. The same principle of off-axis mirror and tilted fiber can be utilized to collect light from above and below the specimen yet fit into the very confined space required by insertion through the goniometer and for operation between narrow gap pole pieces. With a dual system, the emission of light from above the specimen can be compared to that from below thereby enhancing the versatility of the analytical technique. | 06-06-2013 |
20140016213 | Plastic injection molded lens for a left and a right rear-view mirror of an automobile - A plastic injection molded lens for a left and a right rear-view mirror of an automobile is injection formed into shape in a mold. The lens is formed integrally with a major mirror surface zone and a minor mirror surface zone that are different from each other in radian of curved surface. By so designing, the visual field of the rear-view mirror is much wider and produces no dead angles of vision; therefore, the rear-view mirror of this invention is needless to be adjusted for keeping away from the dead angles of eyesight. | 01-16-2014 |
20140085738 | Lensed Planar Reflective Surface for Automotive Auto Dimming Mirrors - A lensed planar reflective surface for automotive auto dimming mirror applications, including a lens and a planar variable attenuating reflective element in spaced relation so as to reflect light transmitted through the lens back through the lens; wherein the planar variable attenuating reflective element comprises: front and rear planar elements; a layer of transparent conductive material disposed on the rear surface of the front planar element; a reflective material disposed on one side of the rear planar element and a perimeter sealing member bonding together the front and rear planar elements in a spaced-apart relationship to define a planar chamber therebetween of uniform thickness, where the planar chamber contains at least one electrochromic material, and where the reflective material is effective to reflect light transmitted through the front planar element and the planar chamber back through the planar chamber and the front planar element. Other embodiments are described and claimed. | 03-27-2014 |
20140104706 | METHOD OF MANUFACTURE OF A CONCAVE LENS ASSEMBLY, AND A CONCAVE LENS ASSEMBLY - A method of manufacturing an optical component may include providing a plate formed from a transparent material, cutting depth-wise through a planar surface of the plate along first and second linear directions to define first and second planar surfaces, and cutting depth-wise through the planar surface along a curved direction to define a curved surface such that an optical component is obtained including the first and second planar surfaces and the curved surface extending between an edge of the first planar surface and an edge of the second planar surface. | 04-17-2014 |
20140204473 | OPTICAL SYSTEM WITH CATADIOPTRIC OPTICAL SUBSYSTEM - An optical system to form an image on an image plane includes, a catadioptric optical subsystem configured to collect light from an object plane; and a refractive optical subsystem configured to form the image on the image plane, the catadioptric and refractive optical subsystems being arranged in order from the object plane to the image plane along an optical axis of the optical system. A baffle to shut off light traveling toward the image plane without being reflected by the catadioptric optical subsystem is placed in the optical system, in order to form a shielded portion in a center of an exit pupil plane of the optical system, and the catadioptric optical subsystem includes a partially transparent surface around the optical axis of the optical system so that transmissivity of a region, other than the shielded portion, at the exit pupil plane varies in a radial direction of the exit pupil plane. | 07-24-2014 |
20160025903 | Tunable Acoustic Gradient Index of Refraction Lens and System - A tunable acoustic gradient index of refraction (TAG) lens and system are provided that permit, in one aspect, dynamic selection of the lens output, including dynamic focusing and imaging. The system may include a TAG lens and at least one of a source and a detector of electromagnetic radiation. A controller may be provided in electrical communication with the lens and at least one of the source and detector and may be configured to provide a driving signal to control the index of refraction and to provide a synchronizing signal to time at least one of the source and the detector relative to the driving signal. Thus, the controller is able to specify that the source irradiates the lens (or detector detects the lens output) when a desired refractive index distribution is present within the lens, e.g. when a desired lens output is present. | 01-28-2016 |