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| Number | Title | Issue Date |
| 7436379 | Reversible image display medium Disclosed is a reversible image display medium which can be repeatedly used and can display high quality images, in which cells between the two substrates accommodate a dry developer containing at least two kinds of frictionally chargeable dry developing particles h... | 10/14/2008 |
| 7382515 | Silicon-rich silicon nitrides as etch stops in MEMS manufacture The fabrication of a MEMS device such as an interferometric modulator is improved by employing an etch stop layer between a sacrificial layer and a an electrode. The etch stop may reduce undesirable over-etching of the sacrificial layer and the electrode. The etch s... | 06/03/2008 |
| 7359103 | Transmission type spatial light modulator and transmission type spatial light modulation array device A transmission type spatial light modulatoris equipped with a minute transparent optical member for deflecting light in a direction different from an incident direction of incident light and emitting the light, a support member for supporting the minute transparent ... | 04/15/2008 |
| 7190504 | Electro-optical device and electronic apparatus An electro-optical device is provided comprising an electro-optical material and means for applying an electric field to the electro-optical material, in which a plurality of pixel regions DR, DG and DB capable of separately controll... | 03/13/2007 |
| 7187487 | Light modulator with a light-absorbing layer A spatial light modulator includes a first region and a second region. A light-absorbing layer contacts at least a portion of the second region. The light absorbing layer includes a first layer and a second layer, the second layer having a reflectivity less than abo... | 03/06/2007 |
| 7161729 | Array of micromirror array lenses An array of micromirror array lenses is invented. The micromirror array lens consists of many micromirrors and actuating components. Each micromirror array lens is variable focal length lens with high speed focal length change. The lens can have arbitrary type and/o... | 01/09/2007 |
| 7154659 | Optical depolarizers and DGD generators based on optical delay Techniques and devices for depolarizing light and producing a variable differential group delays in optical signals. In one implementation, an input optical beam is split into first and second beams with orthogonal polarizations. One or two optical reflectors are th... | 12/26/2006 |
| 7126741 | Light modulator assembly A light modulator assembly includes a substrate, a micro-electro mechanical semiconductor device (MEMS device) formed on the substrate, and a temperature control device coupled to the substrate and configured to maintain the MEMS device at or above an elevated thres... | 10/24/2006 |
| 7113339 | Interferometric modulator and display unit The interferometric modulator of the invention includes a transparent substrate (refractive index: n0) 12, an optical thin film (complex index of refraction: N1=n1−i·k1) 13 provided on the transparent subs... | 09/26/2006 |
| 7016099 | MEMS element, GLV device, and laser display A MEMS element is constituted as a light modulation element for constituting a GLV device, and it has the same constitution as a conventional MEMS element except for differing in the structure of a bridge member of a membrane. The membrane comprises SiN film of, for... | 03/21/2006 |
| 7002727 | Optical materials in packaging micromirror devices A method for packaging micromirror array devices is disclosed herein. The method enhances illumination on micromirror array devices by applying a selected optical material between a package lid and glass substrate of the micromirror array device, the selected optica... | 02/21/2006 |
| 6928207 | Apparatus for selectively blocking WDM channels An apparatus for selective blocking WDM channels comprises a light modulator, a diffraction grating, and a transform lens. The light modulator comprises an array of pixels. Each pixel of the light modulator is selectively operable to direct light into a first mode a... | 08/09/2005 |
| 6924923 | Nonmechanical wavelength-independent beam steerer Methods and devices are provided for steering an electromagnetic beam. The device includes a reflective element, a polarizer, a relay focusing element, and a modulation element. The polarizer is configured to transmit light of a specified polarization and to reflect... | 08/02/2005 |
| 6900789 | Reversible image display medium Disclosed is a reversible image display medium which can be repeatedly used and can display high quality images, in which cells between the two substrates accommodate a dry developer containing at least two kinds of frictionally chargeable dry developing particles h... | 05/31/2005 |
| 6859573 | Double pass arrangement for a liquid crystal device An optical device for rerouting and modifying an optical signal that uses a double pass through a liquid crystal modulator is disclosed. The optical device includes a first polarizer for providing polarized light, a liquid crystal modulator for selectively modifying... | 02/22/2005 |
| 6806997 | Patterned diffractive light modulator ribbon for PDL reduction A modulator for modulating an incident beam of light. The modulator includes a plurality of elements, each element including a first end, a second end, a first linear side, a second linear side, and a continuous or non-continuous light reflective planar surface plur... | 10/19/2004 |
| 6757095 | Semiconductor structure and method for transmitting optical signals using externally supplied light beam A semiconductor structure and method for transmitting optical signals modulates an optical property of the semiconductor structure to selectively transmit portions of an externally supplied light beam as optical signals. The use of the externally supplied light beam... | 06/29/2004 |
| 6678092 | Reflection type faraday rotator with multiple reflection structure A reflection type Faraday rotator includes first to sixth reflection type sub-rotators. Light is made incident on the first to sixth sub-rotators while repeating reflecting thereat. A Faraday rotation occurs at a sub-rotator having a center wavelength equ... | 01/13/2004 |
| 6639712 | Method and apparatus for configuring and tuning crystals to control electromagnetic radiation A method and apparatus for configuring and tuning a crystal by selectively controlling a fluid supplied to a plurality of nodes within a substrate. The apparatus comprises a substrate having at least one node that can be selectively supplied with a liquid... | 10/28/2003 |
| 6498872 | Optical configuration for a dynamic gain equalizer and a configurable add/drop multiplexer An optical device for rerouting and modifying an optical signal that is capable of operating as a dynamic gain equalizer (DGE) and/or a configurable optical add/drop multiplexer (COADM) is disclosed. The optical design includes a front-end unit for provid... | 12/24/2002 |
| 6002514 | Integrated light absorber The integrated light absorber comprises a light chamber integrated in an optical chip, the chamber having upper and lower walls lying substantially parallel to the chip and peripheral walls extending there between and a light input port in a peripheral wa... | 12/14/1999 |
| 5737113 | Optical modulators and color image display device employing the same An optical modulator includes a first diffraction grating for separating a light flux of a wide wavelength band into light fluxes of given wavelength bands. The optical modulator further includes an optical modulation element for modulating the separated ... | 04/07/1998 |
| 5729380 | Loop phase-conjugate mirror for depolarized beams A loop four-wave mixing phase conjugator that can be used with depolarized signal beams comprises a polarization separator, a polarization mixer, an optical diode, a gain medium and relay optics that together form a unidirectional laser resonator. In oper... | 03/17/1998 |
| 5726795 | Compact phase-conjugate mirror utilizing four-wave mixing in a loop configuration A compact loop four-wave mixing phase conjugator that can be used in practical optical applications comprises a reflective nonlinear cell, relay optics, an optical gain medium, and an optical diode that together form a unidirectional ring laser resonator.... | 03/10/1998 |
| 5430561 | Optical space switch employing 2 parallel diffraction gratings and a polarization rotating element The invention provides an optical space switch device which provides variable interconnection of one- or two-dimensionally spatially multiplexed optical signals. The optical space switch device comprises a plurality of optical space switch stages stacked ... | 07/04/1995 |
| 5208698 | Optically-neutral laser shield An optical device that is optically neutral to normal light but absorbs highly collimated light is formed as a mosaic of optical cells. Each cell has at least two refracting surfaces and a non linear material at a focus internal to those surfaces. In one ... | 05/04/1993 |
| 5122894 | Electro-optic beam deflection An optical deflection device for manipulating optical beams employs a set of layers having the configuration NUPUN . . . , where the N and P symbols refer to N-type and P-type dopants and the U symbol refers to an electrooptically active optical guide lay... | 06/16/1992 |
| 5121242 | Retro-reflective optical transceiver A retro-reflective transceiver provides optical communications by reflecting light transmitted by a distant source. The transceiver has a corner cube reflector with a truncated apex that serves as a transmissive aperture. A portion of the incoming light p... | 06/09/1992 |
| 4969720 | Magneto-optic bypass switch An optical bypass switch receives arbitrarily polarized light from an input optical fiber which is divided into the P and S-polarized light beams by a polarization beamsplitter. These P and S-polarized light beams are focussed to a magneto-optic garnet wh... | 11/13/1990 |
| 4556322 | Arrangement for checking dimensional accuracy An arrangement for measuring dimensions and/or checking the dimensional accuracy of large objects (1), such as car bodies or the like. The arrangement comprises a straight movement path (8) and one or a plurality of transmission units (10) movable along t... | 12/03/1985 |
| 3992682 | Two-dimensional laser scanning system A two-dimensional dye laser scanning system is provided wherein a dye laser having a controlled output wavelength is combined with a diffractive beam-bending device to produce a near infrared or visible laser beam that can be directed to scan in two ortho... | 11/16/1976 |
