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| Number | Title | Issue Date |
| 8152317 | Light source device, lighting device and image display device A light source device includes an optical element 22 having a first face 1 opposed to a solid light emitting element 21. The optical element 22 includes second and third faces 2, 3 opposing in parallel to each other and both substa... | 04/10/2012 |
| 8077388 | Light polarization converter for converting linearly polarized light into radially polarized light and related methods The conversion of linear polarized light into radial-polarized light is accomplished through a radial polarization generator containing multiple layers of polarizing film, or polarization converters, for converting the beam of light to a different orientation. Using... | 12/13/2011 |
| 8042960 | Illumination device for producing a polarized light beam An illumination device for providing a polarized light beam comprising a light source (101) having a light emitting surface arranged to emit light (107) in a plane (X-Y), a first polarizing reflector (103) arranged to enclose a light emitting su... | 10/25/2011 |
| 8033674 | Optical components and light emitting devices comprising asymmetric scattering domains The present invention provides a polarization-sensitive light homogenizer and a backlight and display using the same. The homogenizer improves the spatial luminance and color uniformity, increases the luminance in a direction normal to the homogenizer and provides i... | 10/11/2011 |
| 8007118 | Direct-lit backlight with angle-dependent birefringent diffuser A direct-lit backlight includes a diffuse reflector disposed in front of a light source. The diffuse reflector has a continuous phase material and a disperse phase material, at least one of which is birefringent, and the disperse phase material is formed into partic... | 08/30/2011 |
| 7982954 | Light collectors for projection systems Disclosed herein are light collectors for use in projection applications. The light collectors gather light from surface emitting sources (e.g., LEDs) of differing color (or same color in some embodiments) using input lightpipes. A light collection system splits the... | 07/19/2011 |
| 7980712 | Light-transmissive film, method for manufacturing the same, and display apparatus A light-transmissive film for use in display devices is provided. The light-transmissive film includes a plurality of first protrusions formed on one surface and extending in a predetermined direction of the one surface, and a plurality of second protrusions formed ... | 07/19/2011 |
| 7942537 | Light-emitting device with brightness enhancing layer A brightness enhancing means (5), comprising a collimating means (6) having a receiving area (61), an output area (62) being larger than said receiving area (61), and sidewalls (63) at least partially extending between said ... | 05/17/2011 |
| 7918571 | Light-transmitting film, method of forming light-transmitting film, and liquid crystal display A light-transmitting film that has a predetermined polarization split function, in addition to a light-collecting function is provided. The index of refraction nx in a prism extension direction and the index of refraction in a prism alignment direction differ from e... | 04/05/2011 |
| 7896510 | Polarized light illumination device A polarized light illumination device is described, which includes a light source, a polarizer, a reflector, and a polarized light converter. The light source generates light. The reflector is used for reflecting light generated by the light source towards the polar... | 03/01/2011 |
| 7866837 | Skew light illumination lens device A skew light illumination lens body mainly directs the light from a illuminant device to diffuse to a predetermined direction. The lens body includes a base with a receiving slot having a downwards opening for receiving the illuminant device. A top side of the recei... | 01/11/2011 |
| 7857471 | Optical sheet having bonded prism and polarizer sheets and display device The optical sheet includes a first lens sheet having a plurality of first three-dimensional structures arrayed to extend to one surface thereof, and a reflective polarizer sheet for transmitting either one of p-polarization component and s-polarization component of ... | 12/28/2010 |
| 7841730 | Light source device and crystal display device A light source comprising sidelight type backlight light guide plate (L), wherein a transmittance angle dependent layer (T1) which transmits normally incident light and reflects obliquely incident light is disposed on one surface of the sidelight type backlig... | 11/30/2010 |
| 7819557 | Encapsulant shapes for light emitting devices lacking rotational symmetry designed to enhance extraction of light with a particular linear polarization The light-emitting device includes a light source and a transparent encapsulating material that is shaped to modify the polarization anisotropy of light emitted by the light source in at least one direction. ... | 10/26/2010 |
| 7806537 | Light guide plate having orthogonal stresses or strains and backlight module therewith A backlight module includes a light guide plate (52), a light source (51), a reflecting sheet (53), a diffusion sheet (54), and a reflective polarizing beam splitter (57). The light guide plate includes a light input surface (52... | 10/05/2010 |
| 7806538 | Light source device and vehicle lighting device An LED light source device can have a simple configuration which can easily create a desired light distribution pattern with a low profile and light weight. An illumination apparatus and a vehicle lighting device can also be configured to use the LED light source de... | 10/05/2010 |
| 7806539 | Transreflectors, transreflector systems and displays and methods of making transreflectors Optical assembly includes a hollow backlight having at least one light input edge and at least one light source positioned adjacent to the at least one light input edge. A back reflector is positioned at or in close proximity to a first side of the hollow backlight ... | 10/05/2010 |
| 7798660 | Surface illumination apparatus, and liquid crystal display with the same A surface illumination apparatus includes: a light source; an end-surface light-guide portion which guides light emitted from the light source in a long-side direction thereof and generates emitted light in a short-side direction thereof; and a light guide plate whi... | 09/21/2010 |
| 7784954 | Polarization sensitive light homogenizer The present invention provides a polarization-sensitive light homogenizer and a backlight and display using the same. The homogenizer improves the spatial luminance and color uniformity, increases the luminance in a direction normal to the homogenizer and provides i... | 08/31/2010 |
| 7780304 | Smoked lens for vehicle A vehicle instrument cluster lens assembly for achieving a desired smoked lens effect in a vehicle instrument panel includes a first layer having an associated polarizing orientation for transforming incident light into polarized light having a first orientation tha... | 08/24/2010 |
| 7766495 | Reflector shapes for light emitting diode-polarized light sources A light-emitting device including a light source that exhibits polarization anisotropy and a reflector that is shaped so that for light emitted in at least two directions from the light source, the angle between the dominant polarization directions after reflecting ... | 08/03/2010 |
| 7748859 | Backlight module having grating plate and liquid crystal display with same A backlight module (1) includes a light source (121), a light guide plate (122) and a grating plate (123). The light guide plate includes a light incident surface (1221), a bottom surface (1223) adjacent the light incident s... | 07/06/2010 |
| 7717578 | Multiple lamp illumination system with polarization recovery and integration An illumination system is provided for combining two or more light sources. A plurality of light sources radiate random polarization light. A plurality of collecting light pipes corresponds to the plurality of light sources. Each collecting light pipe has an entranc... | 05/18/2010 |
| 7712908 | Light-transmitting film, method of forming light-transmitting film, and liquid crystal display A light-transmitting film that has a predetermined polarization split function, in addition to a light-collecting function is provided. The index of refraction nx in a prism extension direction and the index of refraction in a prism alignment direction differ from e... | 05/11/2010 |
| 7661834 | Lighting unit for producing linearly polarized light directed onto a target surface Lighting unit for producing linearly polarized light directed onto a target surface comprising a source unit producing light in the visible spectral range, and an optically translucent polarizing front unit (4) providing protection against external effects. T... | 02/16/2010 |
| 7661833 | Light guide device and backlight module therewith A light guide device (52) includes a light guide substrate (520) and a sub-wavelength grating (527). The light guide substrate has a light input surface (521), a light output surface (522) adjacent to the light input surface (52... | 02/16/2010 |
| 7614757 | Backlight unit using wire-grid polarizer and liquid crystal display apparatus employing the backlight unit A backlight unit, which can emit one of s-polarized light and p-polarized light using wire-grid polarizer, and a liquid crystal display apparatus employing the backlight unit are provided. The backlight unit includes: a light source radiating light; a light guide pl... | 11/10/2009 |
| 7604362 | Backlight apparatus, liquid crystal display The present invention relates to a backlight apparatus and a liquid crystal display apparatus, capable of realizing a backlight apparatus having high color reproductivity without color irregularities in a backlight apparatus having a LED device as its light source. ... | 10/20/2009 |
| 7537352 | Light emitting diode illumination device capable of providing uniformly polarized light A LED illumination device includes a tapered light guiding member, a LED, a reflective polarizer and a quarter-wave retarder. The light guiding member includes a light input surface and an opposite light output surface. The LED includes a LED chip and a reflective s... | 05/26/2009 |
| 7524073 | Layered periodic structures with peripheral supports A grating for an optical device. The grating includes a working area comprising a periodic grating structure and a non-working area comprising a support structure for mating with an additional component of the optical device. The support structure supports the addit... | 04/28/2009 |
| 7494234 | Backlight module A polarizer includes a first prism plate having a plurality of first micro-prisms; a polarizing film formed on surfaces of the first micro-prisms; and a second prism plate having a plurality of second micro-prisms, the micro-prisms of the first prism plate and the m... | 02/24/2009 |
| 7425089 | Lighting device and image display unit and light guide provided with it An illumination device according to the present invention includes a light source; and a lightguide element including an incidence surface for receiving light emitted from the light source and an outgoing surface from which the light incident from the incidence surf... | 09/16/2008 |
| 7416309 | Optical film having a surface with rounded structures The present disclosure is directed to optical devices including a light source and an optical film having a first surface disposed to receive light from the light source and a second surface facing away from the light source. The second surface includes a two-dimens... | 08/26/2008 |
| 7413317 | Polarized UV exposure system A light exposure system is used to expose an alignment layer formed of anistropically absorbing molecules so as to allow alignment of subsequently applied liquid crystal polymer (LCP) molecules. The light incident on the alignment layer is polarized. When a single p... | 08/19/2008 |
| 7413331 | LCD with multi-color optical unit and cross dichroic device The present invention relates to a backlight apparatus and a liquid crystal display apparatus, capable of realizing a backlight apparatus having high color reproductivity without color irregularities in a backlight apparatus having a LED device as its light source. ... | 08/19/2008 |
| 7408201 | Polarized semiconductor light emitting device A light emitting device includes a light emitting diode (LED), a concentrator element, such as a compound parabolic concentrator, and a wavelength converting material, such as a phosphor. The concentrator element receives light from the LED and emits the light from ... | 08/05/2008 |
| 7400439 | Uniform illumination system A compact and efficient optical illumination system featuring planar multi-layered LED light source arrays concentrating their polarized or un-polarized output within a limited angular range. The optical system manipulates light emitted by a planar light emitters su... | 07/15/2008 |
| 7387388 | Illumination system using polarization conversion An apparatus and method is discloses for providing a substantially uniform, homogenous, polarized light. A beam of substantially un-polarized light is provided by a conventional light source. The un-polarized light is converted to at least four real images by using ... | 06/17/2008 |
| 7375887 | Method and apparatus for correcting a visible light beam using a wire-grid polarizer An optical system and method for providing a visible light beam with a desired characteristic includes a visible light source producing a visible light beam defining an optical train. An optical element is disposed in the optical train to create a modified beam, and... | 05/20/2008 |
| 7357511 | Stress birefringence compensation in polarizing beamsplitters and systems using same Some projection systems use a polarization beamsplitter (PBS) for coupling light to and from an image-forming device. The PBS is typically formed with a reflective polarizing layer disposed between glass covers. Stress birefringence in the glass cover lying between ... | 04/15/2008 |
