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| Number | Title | Issue Date |
| 7916392 | Polarization control system and projector incorporating reflective liquid crystal element and birefringent elements A phase compensation element is disposed between a reflective type display element and a polarizing beam splitter. Composed of a crystal structure retardation layer functioning as a quarter-wave plate and an inclined-axis retardation layer functioning as an O-plate,... | 03/29/2011 |
| 7903334 | Refractive boundary elements, devices, and materials An optical device includes an interface between two or more media. The refractive indices, orientations of media, and alignment relative to a propagating wave define a refractive boundary at which reflections may be reduced or eliminated, and at which, for certain i... | 03/08/2011 |
| 7859752 | Optical module for adjusting a laser beam of a laser processing machine An optical module adjusts an output of a laser of a laser processing machine. The optical module consists essentially of includes an adaptive spherical mirror configured to receive a laser beam from the laser, and a spherical mirror configured to receive a laser bea... | 12/28/2010 |
| 7852561 | Optical compensation layer-attached polarizing plate, liquid crystal panel, liquid crystal display, image display, and method for producing optical compensation layer-attached polarizing plate An optical compensation layer-attached polarizing plate including a polarizing plate, an optical compensation layer and another optical compensation layer that are laminated in this order, wherein the optical compensation layer has the relation nx1>ny | 12/14/2010 |
| 7636196 | Refractive boundary elements, devices, and materials An optical device includes an interface between two or more media. The refractive indices, orientations of media, and alignment relative to a propagating wave define a refractive boundary at which reflections may be reduced or eliminated, and at which, for certain i... | 12/22/2009 |
| 7619818 | Elliptically polarizing plate and image display An elliptically polarizing plate including: a polarizer; and an optical film that includes a laminate of: a retardation film A that includes a cyclic polyolefin resin-containing thermoplastic polymer and has uniaxially-aligned positive refractive-index anisotropy ch... | 11/17/2009 |
| 7570425 | System, apparatus and method for high efficiency low leakage LCD polarizer An apparatus for a liquid crystal display includes a polarizer film configured to receive light from a liquid crystal display and an optical polarizer screen configured to filter light for the liquid crystal display. The optical polarizer screen has multiple grooves... | 08/04/2009 |
| 7567382 | Optical filter An optical filter such that at least one optically anisotropic crystal plate and at least one substrate are stuck together in a state in which a principal face of the optically anisotropic crystal plate and a principal face of the substrate are perpendicular to a di... | 07/28/2009 |
| 7495831 | Optical device, display device, and three-dimension image display device for changing a polarization state of a light beam in time An optical element, an optical device, and a display device are disclosed that are able to change a polarization state in time order and to produce polarized light with little wavelength dependence and superior in polarization purity, and able to perform pixel shift... | 02/24/2009 |
| 7492519 | Refractive boundary elements, devices, and materials An optical device includes an interface between two or more media. The refractive indices, orientations of media, and alignment relative to a propagating wave define a refractive boundary at which reflections may be reduced or eliminated, and at which, for certain i... | 02/17/2009 |
| 7443585 | Polarizer, polarization light source and image display unit using them A polarization component, capable of efficiently reflecting an obliquely transmitted light beam toward a light source without degrading the transmission-polarization property of a perpendicular incident light beam, is provided. A C-plate having an oblique retardatio... | 10/28/2008 |
| 7440075 | Birefringent optical system The invention relates to an optical system comprising a fluid chamber 1 and a birefringent part. The fluid chamber comprises first and second fluids 10, 12 having different indices of refraction, the interface between the fluids forming a meniscus 1... | 10/21/2008 |
| 7418202 | Article having a birefringent surface and microstructured features having a variable pitch or angles for use as a blur filter An optical low pass filter or blur filter, and method of making the filters, using an article having a birefringent surface for refracting incoming light when used with an image sensor. The birefringent surface of the article, such as a film, is structured or tilted... | 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 |
| 7414786 | System and method converting the polarization state of an optical beam into an inhomogeneously polarized state A system for converting the polarization state of an optical beam which propagates along a path from an initial polarization state into an inhomogeneous polarization state includes a first isotropic material and a first anisotropic material. The first anisotropic ma... | 08/19/2008 |
| 7400448 | Birefringent spectral filter A birefringent spectral filter comprises a first birefringent stage and a polarizing beam splitter optically coupled to the first birefringent stage. The first birefringent stage is adapted to generate an optical path difference between light propagating along each ... | 07/15/2008 |
| 7381339 | Increased yield of cubic crystalline optical elements by crystal orientation Increased yield of optical elements from cubic crystal rods, such as made of calcium fluoride, is made possible by orienting the optical elements for supporting the propagation of light along one of the , , or < 2 1 1> alternative crystal... | 06/03/2008 |
| 7382535 | Wave plate and associated method An improved wave plate and associated method are provided. The wave plate includes a plurality of layers of uniaxial crystal including at least one layer of positive uniaxial crystal and at least one layer of negative uniaxial crystal. The thicknesses of the layers ... | 06/03/2008 |
| 7373028 | Polarization maintaining coupler A polarization maintaining coupler is provided that allows a user to change the coupling ratio of two or more output fibers. The coupler can include an assembly containing a PM fiber in a ferrule. The ferrule is attached to a housing, which includes a lens for colli... | 05/13/2008 |
| 7369294 | Ornamental display device An ornamental display device having an interferometric modulator for displaying an ornamental image. The ornamental device may have a patterned diffuser formed on a transparent substrate to provide an ornamental image. The ornamental device may also be a piece of je... | 05/06/2008 |
| 7369317 | Head-mounted display utilizing an LCOS panel with a color filter attached thereon Display apparatus such as a see-through head-mounted display (HMD) through which a viewer could capture a scene while seeing an object through the apparatus is disclosed. In the display apparatus, a liquid crystal on silicon (LCOS) panel with a color filter attached... | 05/06/2008 |
| 7365721 | Projection display The present invention provides an inexpensive projection display that allows a pixel grid as ineffective portions of respective pixels of a light valve to be made inconspicuous. The projection display includes a birefringent element (43) for spatially separat... | 04/29/2008 |
| 7365910 | Electronic image pickup system The invention relates to an electronic image pickup system whose depth dimension is extremely reduced, taking advantage of an optical system type that can overcome conditions imposed on the movement of a zooming movable lens group while high specifications and perfo... | 04/29/2008 |
| 7360899 | Beamsplitting structures and methods in optical systems Various embodiments involving structures and methods for illumination can be employed, for example, in projectors, head-mounted displays, helmet-mounted displays, back projection TVs, flat panel displays as well as other optical systems. Certain embodiments may incl... | 04/22/2008 |
| 7362504 | Miniature circulator devices and methods for making the same Miniature optical devices, including circulator array devices, are fabricated using thin film coating technology. A typical optical device includes two refraction elements arranged opposite each other along a propagation axis and coupled on opposite ends to first an... | 04/22/2008 |
| 7362489 | Multi-conjugate liquid crystal tunable filter A hyper-spectral imaging filter has serial stages along an optical signal path with angularly distributed birefringent retarders and polarizers forming interference filters. The retarders can include tunable birefringent elements such as liquid crystals controlled i... | 04/22/2008 |
| RE40251 | Optical element, polarization illumination device, and projector Two polarization conversion element arrays are disclosed. Each polarization conversion element array is composed of a plurality of polarization conversion elements for converting light incident upon the polarization conversion element array to a linearly polarized l... | 04/22/2008 |
| 7359119 | Optical arrangement for pre-processing primary illumination light An optical arrangement for pre-processing primary illumination light is proposed, wherein a provided spectral processing section (P) comprises a multi-prism assembly (10) consisting of a plurality of sequentially/consecutively connected prisms (21, 22)... | 04/15/2008 |
| 7359584 | Polarization beam separator and combiner The present invention relates to a device for use in a fiber optic system that may be a communication system, a sensing system or other system using guided-wave optical components. Reducing the number of lenses required to couple the waveguides and the free-space pa... | 04/15/2008 |
| 7359583 | Fiber optic pair with pigtail geometry Optical devices are disclosed, one example of which includes first and second polarization maintaining (“PM”) fibers. The first and second PM fibers in this example are disposed beside each other to form a grouping that includes a secondary axis defined by the f... | 04/15/2008 |
| 7357510 | Projection-type 3-D image display device using single projector A projection-type 3-D image display device includes a single display element, a polarization conversion switch, a first image shifter, a second image shifter, a projection lens unit, a mirrored light tunnel, and a screen unit. The screen unit includes an image separ... | 04/15/2008 |
| 7355560 | Dielectric lens, dielectric lens device, design method of dielectric lens, manufacturing method and transceiving equipment of dielectric lens A design process first determines a desired aperture distribution, then converts the electric power conservation law, Snell's law on the rear face side of a dielectric lens, and the formula representing light-path-length constraint, into simultaneous equations, and ... | 04/08/2008 |
| 7355663 | Polarizing plate and liquid crystal display using the same A polarizing plate excellent in polarization performance in all wavebands from a short wavelength region to a long wavelength region and a liquid crystal display using such a polarizing plate. The polarizing plate including a polarizer has a portion having a polariz... | 04/08/2008 |
| 7355791 | Optical system and photolithography tool comprising same An optical system, for example a lens for a photolithography tool, includes a group of optical elements (L1, L2) that each comprise a birefringent cubic crystal such as CaF2. The crystal lattices of the crystals have different orientations, ... | 04/08/2008 |
| 7354162 | Projector A projector includes: a light source device that emits substantially parallel illumination light; a first lens array having a plurality of first small lenses each of which divides the illumination light coming from the light source device into a plurality of partial... | 04/08/2008 |
| 7351346 | Non-photolithographic method for forming a wire grid polarizer for optical and infrared wavelengths A method for forming a plurality of parallel metal lines on a substrate of thin film elastomeric material and a wire grid polarizer formed by such method. A sacrificial layer is formed by coating the substrate with a water soluble polymer while the substrate is stre... | 04/01/2008 |
| 7343057 | Integratable optical isolator in a Mach-Zehnder interferometer configuration A method of operating an optical isolator having first and second optical splitter-combiners disposed within a semiconductor die. The optical splitter-combiners are coupled together into an interferometer configuration by first and second waveguide sections also dis... | 03/11/2008 |
| 7339735 | Polarization recovery system for projection displays A waveguide polarization recovery system both polarizes the input light energy for use with an LCD imager and converts the polarity of unusable light energy to add to the illumination of the LCD imager. The compact polarization recovery waveguide system generally in... | 03/04/2008 |
| 7335874 | Method and apparatus for generating a circularly polarized illumination beam A method and apparatus for illuminating a subject with deep UV light and detecting 2-dimensional image information, e.g., a transmission image, fluorescence image, reflected light image, etc. The subject may be illuminated with a light pulse having a duration of 2 s... | 02/26/2008 |
| 7334900 | Three-dimensional image projecting apparatus The invention provides a three-dimensional image projecting apparatus. The three-dimensional image projecting apparatus comprises a light signal generator, a filter device, a focusing device and a reflecting device. The light signal generator is used for generating ... | 02/26/2008 |
