Did You Know...
...that in the early 1940s GE engineer James Wright was charged with a task of utmost importance to the war effort: develop a cheap substitute for rubber that could be used to produce tires, gas masks and a whole host of military gear. Wright tackled the task diligently -- and wound up inventing Silly Putty.
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| Number | Title | Issue Date |
| 7859753 | Optical birefringence filters with interleaved absorptive and zero degree reflective polarizers A wavelength discriminating optical filter has birefringent retarders stacked between polarizing filters, in relative rotational orientations causing passband wavelengths to emerge in a polarization state aligned to a second such polarizing filter, for transmission,... | 12/28/2010 |
| 7724434 | Reflective polarizer and display device having the same A reflective polarizer suitable for use in a display device is disclosed herein. The reflective polarizer comprises: a multilayer optical film comprising alternating layers of first and second polymeric layers that reflects light of a first polarization state and tr... | 05/25/2010 |
| 7701633 | Prism optical system and image pickup apparatus A prism optical system including an optical low-pass filter disposed on an incident side of a luminous flux, and a prism arranged to perform a color separation to a plurality of color bands by an optical thin film, the prism optical system includes the optical low-p... | 04/20/2010 |
| 7557989 | Reflective polarizer and display device having the same A reflective polarizer suitable for use in a display device is disclosed herein. The reflective polarizer includes: a multilayer optical film including alternating layers of first and second polymeric layers that reflects light of a first polarization state and tran... | 07/07/2009 |
| 7417796 | Wavelength discrimination filter for infrared wavelengths An optical comb filter has polarizers placed before and after two or more birefringent elements, each having a fixed retarder and an aligned tunable liquid crystal. The birefringent elements are equal in birefringence and thickness and are tuned in unison. Wavelengt... | 08/26/2008 |
| 7397604 | Narrow bandpass filter assemblies for solar telescopes The invention relates to the combination of lower transmittance etalons with higher transmittance filters, including use of a single circular polarizer with high efficiency and optical performance for its filtered polarization, to achieve necessary throughput of a n... | 07/08/2008 |
| 7394188 | Phosphor based light source component A method of making a light source includes the steps of forming a first optical component having a phosphor material in fixed relation to a first multilayer interference reflector, providing a second optical component having an LED capable of emitting light that exc... | 07/01/2008 |
| 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 |
| 7364302 | Projection display system using multiple light sources and polarizing element for using with same An image projection system has two illumination beams of different colors. A first polarizing beamsplitter (PBS) has first and second input faces. Light of the first color is incident on the first input face and the light of the second color is incident on second in... | 04/29/2008 |
| 7362943 | Polymeric photonic crystals with co-continuous phases An optical element is formed by co-extruding to have an arrangement of polymer scattering fibers within a polymer matrix. The scattering fibers lie substantially parallel to a first axis. The scattering fibers are arranged at positions across the cross-section of th... | 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 |
| 7356229 | Reflective polarizers containing polymer fibers A polarizer is formed with an arrangement of polymer fibers substantially parallel within a polymer matrix. The polymer fibers are formed of at least first and second polymer materials. At least one of the polymer matrix and the first and second polymer materials is... | 04/08/2008 |
| 7347562 | Two-panel liquid-crystal-on-silicon color management system A two-panel projection display system includes a color wheel having color filter segments that transmit light having a secondary color, namely cyan, magenta, and yellow, made up of two primary colors. A primary color separator, such as a second color wheel, a transf... | 03/25/2008 |
| 7349157 | Optical splitting device and optical communication terminal comprising such a device An optical splitting device is intended to receive at an input two beams of different wavelengths. The device includes a polarizing beam splitter designed to selectively transmit part of the beam having one of the wavelengths towards a first output or a second outpu... | 03/25/2008 |
| 7338690 | Liquid crystal composition and liquid crystal device Novel liquid crystal compositions are disclosed. One of them comprises at least a dichroic dye having a substituent containing three or more cyclic moieties, and a dual-frequency switchable nematic liquid crystal as a host liquid crystal; and another one comprises a... | 03/04/2008 |
| 7286282 | Wavelength conversion method, wavelength conversion laser, and laser beam machining apparatus A fundamental laser beam is wavelength converted through nonlinear optical crystals by traveling in one direction, sequentially through two nonlinear optical crystals arranged in series. A wavelength-converted laser beam is generated and includes wavelength-converte... | 10/23/2007 |
| 7286192 | Transflective liquid crystal display A transflective liquid crystal display having a plurality of pixels, each pixel having a plurality of color sub-pixels, each sub-pixel having a transmission area associated with a first charge storage capacitance and a reflection area associated with a second storag... | 10/23/2007 |
| 7277141 | Optical bodies containing cholesteric liquid crystal material and methods of manufacture An optical body includes a substrate and a cholesteric liquid crystal layer disposed on the substrate. The cholesteric liquid crystal layer has a non-uniform pitch along a thickness direction of the layer and comprises a crosslinked polymer material that substantial... | 10/02/2007 |
| 7271863 | Color liquid crystal display with internal rear polarizer A color liquid crystal display is provided comprising a front panel including at least one polarizer, a rear panel including at least one polarizer, liquid crystal placed between the front and rear panels, a reflective layer on the rear panel, and a matrix of color ... | 09/18/2007 |
| 7268944 | Optical interleaver, filter cell, and component design with reduced chromatic dispersion An optical interleaver for use in a range of telecommunications applications including optical multiplexers/demultiplexers and optical routers. The optical device includes an optical processing loop which allows multi-stage performance characteristics to be achieved... | 09/11/2007 |
| 7257269 | Digital polarization filter A method for simulating in a digital image the effect of a physical polarization filter is described, the digital image having a plurality of pixels (50) with color, by darkening (54) each of the plurality of pixels (52) having a cool color and ... | 08/14/2007 |
| 7257287 | Optical interleaver In accordance with an exemplary embodiment of the present invention, an optical device includes an interleaver/deinterleaver, which includes a passive thermal compensator, wherein an optical signal which transverses the optical device undergoes substantially no temp... | 08/14/2007 |
| 7253858 | Liquid crystal display device using cholesteric liquid crystal A liquid crystal display device includes: first and second substrates facing and spaced apart from each other; a retardation layer on an outer surface of the first substrate; a linear polarizing layer on the retardation layer; a cholesteric liquid crystal color filt... | 08/07/2007 |
| 7251076 | Optical component and method for producing thick polyimide film An optical component according to the present invention comprises a substrate, and at least one optical element obtained by processing at least one thick optical film provided on the substrate. The optical component has a plurality of surfaces substantially not para... | 07/31/2007 |
| 7239450 | Method of determining lens materials for a projection exposure apparatus A method of determining materials of lenses contained in an optical system of a projection exposure apparatus is described. First, for each lens of a plurality of the lenses, a susceptibility factor KLT/LH is determined. This factor is a measure of the su... | 07/03/2007 |
| 7236301 | Polarized light valve A projection system for making an object appear and disappear to an observer on cue. The system remotely activates a reflective axis and a transmissive axis within a polarized window for making an object on cue appear and disappear. In one aspect, this system contai... | 06/26/2007 |
| 7234816 | Polarizing beam splitter assembly adhesive A polarizing beam splitter (PBS) includes a multilayer reflective polarizing film, a pressure sensitive adhesive is disposed on the multilayer reflective polarizing film, a first rigid cover is disposed on the pressure sensitive adhesive. The PBS can be used in a va... | 06/26/2007 |
| 7227686 | Tunable PMD emulators and compensators Tunable PMD emulators and compensators for producing different PMD profiles with an adjustable average DGD value. ... | 06/05/2007 |
| 7224279 | Integrated circuit enclosed retroreflective product An integrated circuit enclosed retroreflective product which comprises an integrated circuit module having built-in integrated circuit(s), a retroreflective element, and their carrier layer(s). ... | 05/29/2007 |
| 7220466 | Liquid crystal composition and liquid crystal device A novel liquid crystal composition is disclosed. The liquid crystal composition comprises at least one dual-frequency switchable smectic liquid crystal, and at least one dichroic dye. And a novel liquid crystal device is also disclosed. The device comprises a pair o... | 05/22/2007 |
| 7215473 | Enhanced heat mirror films A heat mirror film containing visible light-transmissive and infrared reflective film comprising a birefringent dielectric multilayer support that reflects at least 50% of light in a band at least 100 nm wide in a wavelength region of interest, a metal or metal allo... | 05/08/2007 |
| 7211304 | Multilayer optical compensator, liquid crystal display, and process A multilayer compensator includes one or more polymeric first layers and one or more polymeric second layers. The first layers comprise a polymer having an out-of-plane (Δnth) birefringence not more negative than −0.01 or not more positive than +0.01. ... | 05/01/2007 |
| 7206466 | Polarization dependent loss loop A system and method for reducing polarization dependent loss in optical circuits is disclosed. The system includes a first optical device having an output, and a polarization controller optically coupled to the first optical device for adjusting a polarization state... | 04/17/2007 |
| 7196847 | Device and method for an optical tunable polarization interface filter The tuner has constituent component for constructing a tunable or switchable spectral filter, including single and multiple stage filters and fitters without intermediate polarizer, over a wavelength range. It has elements arranged in cascade along a light beam axis... | 03/27/2007 |
| 7172795 | Method for making three-dimensional structures having nanometric and micrometric dimensions A method for making three-dimensional structures of nanometric or micrometric dimensions comprises the following steps: obtaining of a photopolymeric or UV mixture including nanoparticles orientable in space; deposition of a layer of the mixture on a respective subs... | 02/06/2007 |
| 7173763 | Optical interleaver and filter cell design with enhanced clear aperture An optical interleaver for use in a range of telecommunications applications including optical multiplexers/demultiplexers and optical routers. The optical device includes an optical processing loop which allows multi-stage performance characteristics to be achieved... | 02/06/2007 |
| 7170679 | Optically active color filter An optically active color filter for controlling the color of light produced by a light source. The color filter includes an optically active device positioned between a linear polarizer and an adjustable position linear polarizer whose orientation can be controlled... | 01/30/2007 |
| 7167230 | Liquid crystal variable wavelength filter unit, and driving method thereof A liquid crystal variable wavelength filter unit and its driving method applicable for a Wavelength Division Multiplexing (WDM) communication system and an optical network using an optical fiber. The liquid crystal variable wavelength filter unit (130) includ... | 01/23/2007 |
| 7164530 | Polarizing filter and optical device using the same A polarizing filter has a laminate structure: wherein one to four layers of first dielectric thin films 1 and one to four layers of second dielectric thin films 2 are alternately laminated on a transparent flat substrate 10 to form the laminate ... | 01/16/2007 |
| 7164514 | Holographic data storage media with structured surfaces Holographic media for storing and reading holographic data is provided having one or more external or internal surfaces having structures for at least one of minimizing reflections from illumination incident the surface, or enhancing adhesion between surfaces within... | 01/16/2007 |
