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| Number | Title | Issue Date |
| 7978392 | Bi-stable display device A bi-stable display device including a first substrate, a thin film transistor (TFT) array layer and a bi-stable display panel is provided. The TFT array layer is formed on the first substrate and the bi-stable display panel is disposed on the TFT array layer. The f... | 07/12/2011 |
| 7420725 | Device having a conductive light absorbing mask and method for fabricating same A system and method for an optical component that masks non-active portions of a display and provides an electrical path for one or more display circuits. In one embodiment an optical device includes a substrate, a plurality of optical elements on the substrate, eac... | 09/02/2008 |
| 7356053 | Mode-locked laser with variable pulse duration A pulsed, mode-locked, picosecond laser having a solid-state laser medium, a saturable absorber (SA), and a passive negative feedback (PNF) element. The SA is “slow,” having an absorption recovery time which is longer than a desired duration of an output pulse. ... | 04/08/2008 |
| 7317677 | Semiconductor laser light source device and optical pickup device An semiconductor laser light source apparatus includes: a semiconductor laser oscillator for emitting a laser beam; and a lens for transmitting the laser beam emitted by the semiconductor laser oscillator, wherein the lens comprises a light transparent material in w... | 01/08/2008 |
| 7265892 | Micromirror array devices with light blocking areas Disclosed herein is a micromirror array device package having a light blocking area for reducing unexpected light scattering from the surfaces of the posts. ... | 09/04/2007 |
| 7263262 | All-optical logic gates using nonlinear elements-claim set VI An all-optical logic gates comprises a nonlinear element such as an optical resonator configured to receive optical input signals, at least one of which is amplitude-modulated to include data. The nonlinear element is configured in relation to the carrier frequency ... | 08/28/2007 |
| 7260136 | Multiple laser cavity A method of using at least a part of a cavity for a first and at least one second laser includes providing a first laser beam to the part of the cavity, splitting the first beam into a first and a second part, splitting the first part into a third and a fourth part,... | 08/21/2007 |
| 7221495 | Thin film precursor stack for MEMS manufacturing This invention provides a precursor film stack for use in the production of MEMS devices. The precursor film stack comprises a carrier substrate, a first layer formed on the carrier substrate, a second layer of an insulator material formed on the first layer, and a ... | 05/22/2007 |
| 7193772 | Conductively cooled liquid thermal nonlinearity cell for phase conjugation and method A thermal nonlinear cell and method. The cell includes a substantially planar nonlinear medium and a mechanism for removing thermal energy from the medium in a direction substantially orthogonal to said medium. In one embodiment, the mechanism for removing thermal e... | 03/20/2007 |
| 7184200 | Passive broadband infrared optical limiter device based on a micro-optomechanical cantilever array An IR limiting device for a detector that is based on a micro-optomechanical cantilever array is disclosed. In the normal state, each microcantilever device in the array behaves like a mirror that reflects the infrared signal to the detector. The microcantilever dev... | 02/27/2007 |
| 7164520 | Packaging for an interferometric modulator A package is made of a transparent substrate having an interferometric modulator and a back plate. A non-hermetic seal joins the back plate to the substrate to form a package, and a desiccant resides inside the package. A method of packaging an interferometric modul... | 01/16/2007 |
| 7161728 | Area array modulation and lead reduction in interferometric modulators A light modulator is arranged as an array of rows and columns of interferometric display elements. Each element is divided into sub-rows of sub-elements. Array connection lines transmit operating signals to the display elements, with one connection line correspondin... | 01/09/2007 |
| 7136212 | Molecular architecture for molecular electro-optical transistor and switch Observable changes in electrical and optical characteristics of individual molecules adsorbed on a conductor or semi-conductor caused by electrical and/or optical excitation or de-excitation of electrons within such molecules can be used as signals which in turn can... | 11/14/2006 |
| 7130540 | Optical transmission systems, devices, and methods Optical systems and devices for processing spectral groups, and optical methods for forming spectral groups, the optical system including at least one sub-network including at least one spectral group router configurable to route a plurality of optical signal channe... | 10/31/2006 |
| 7046425 | Multi-stage optical switching device An optical switching device contains an active stage coupled to a passive stage. The index of refraction in the active stage is variable to change the entry direction of a light beam into the passive stage, which has a fixed index of refraction. Because the light be... | 05/16/2006 |
| 6985373 | Binary beam steering device An element for steering electromagnetic beams. The element includes a phase change material in combination with dielectric and other layers in a multilayer optical stack. The phase change material that is reversibly transformable between two or more structural state... | 01/10/2006 |
| 6970622 | Arrangement and method for controlling the transmission of a light signal based on intensity of a received light signal An arrangement for controlling the transmission of a light signal is disclosed. The arrangement includes a first fiber optic line for transmitting the light signal and a light receiving unit operatively coupled to the first fiber optic line so that the light signal ... | 11/29/2005 |
| 6963677 | Optical memory and logic using cross-switches An all-optical, asynchronous binary storage cell implemented by optically induced total internal reflection cross-junction waveguide switches. The term “all-optical” refers to directing of optical data signals as a result of optical control signal inputs without... | 11/08/2005 |
| 6952301 | Spatial light modulators with light blocking and absorbing areas A projection system, a spatial light modulator, and a method for forming a MEMS device are disclosed. The spatial light modulator can have two substrates bonded together with one of the substrates comprising a micro-mirror array. The two substrates can be bonded at ... | 10/04/2005 |
| 6937379 | Molecular architecture for molecular electro-optical transistor and switch Observable changes in electrical and optical characteristics of individual molecules adsorbed on a conductor or semi-conductor caused by electrical and/or optical excitation or de-excitation of electrons within such molecules can be used as signals which in turn can... | 08/30/2005 |
| 6927381 | Photosensitive imaging apparatus sensitive to orange light A photosensitive imaging device for recording images across the entire visible spectrum includes a set of photosensors which have a peak response around the orange part of the spectrum, about 600 nm. The peak response is obtained by combining responses of, in one ca... | 08/09/2005 |
| 6922529 | Optical communications systems, devices, and methods Devices, such as node and network elements for use in communications systems, which include a plurality of ports, each having an input and an output, a plurality of splitters corresponding to the port inputs, a plurality of combiners corresponding to the port output... | 07/26/2005 |
| 6919982 | Optical path deflecting element, optical path deflecting apparatus, image displaying apparatus, optical element and manufacturing method thereof An optical path deflecting element, an optical path deflecting apparatus, an image displaying apparatus, an optical writing apparatus, an optical interconnection apparatus, an optical element, and a fabrication method thereof. The optical path deflecting element inc... | 07/19/2005 |
| 6906847 | Spatial light modulators with light blocking/absorbing areas A projection system, a spatial light modulator, and a method for forming a micromirror array such as for a projection display are disclosed. The spatial light modulator can have two substrates bonded together with one of the substrates comprising a micro-mirror arra... | 06/14/2005 |
| 6882460 | Phase angle controlled stationary elements for long wavelength electromagnetic radiation An element for reflecting, transmitting, focusing, defocusing or wavefront correction of electromagnetic radiation in the terahertz frequency range. The elements include a grid of conductive strips including active regions comprising a chalcogenide phase change mate... | 04/19/2005 |
| 6777718 | Semiconductor optical device A semiconductor optical device includes a substrate, an optical waveguide layer on the substrate and having well and barrier layers. The semiconductor optical device also includes an optical absorbing layer on the substrate and adjacent to the optical waveguide laye... | 08/17/2004 |
| 6757094 | Optical shutter assembly The present invention pertains to an optical shutter comprising an photon-absorbing layer and a surface layer in a transparent state on at least one side of the photon-absorbing layer, wherein the optical shutter is characterized by the absorption of photons to chan... | 06/29/2004 |
| 6741377 | Device having a light-absorbing mask and a method for fabricating same The invention provides a method for fabricating an optical device comprising at least one optical component formed on a transparent substrate. The method comprises determining an area of the substrate that is to be light-absorbing; and fabricating a light-absorbing ... | 05/25/2004 |
| 6741386 | Display element and process for its manufacture A display element is disclosed which comprises a pair of substrates, a display medium interposed between the substrates which medium may comprise electrophoretic particles and a dispersion medium, and partition walls with which the display medium is divided in the d... | 05/25/2004 |
| 6643040 | Optical signal converter from RZ format to NRZ format The present invention is a device for converting an RZ signal into a NRZ signal which contains an optical bistable device (5), where an output level of this device passing from a low level to a high level when an input power level crosses in an upward dir... | 11/04/2003 |
| 6631021 | Polyfunctional thiirane compounds Describes novel polyfunctional thiiranes. Also described are polymerizable compositions comprising such novel polyfunctional thiiranes, and polymerizates, e.g., optical lenses, prepared therefrom. The described polymerizates may have a refractive index of... | 10/07/2003 |
| 6456417 | All-optical flip-flop device A bistable optical device such as a semiconductor optical amplifier (SOA) emits an output beam at either a high level or a low level, depending on which of the two stable states the device occupies. The device is switched between the two stable states wit... | 09/24/2002 |
| 6075640 | Signal processing by optically manipulating polaritons The invention features methods and systems for processing signals by optically manipulating polaritons. In one embodiment, the signal processing method includes: converting a plurality of spatially separated input signals into polaritons that propagate in... | 06/13/2000 |
| 5982529 | Apparatus for reducing linear artifacts in an optically-printed image A spatial light modulator for use in a optical printer where the spatial light modulator includes a plurality of cells, having a shape that is defined to decrease artifacts in an image produced on a recording medium by the optical printer. The shape of th... | 11/09/1999 |
| 5963358 | Semiconductor device and method for its operation An optical modulator according to the present invention comprises an optical guide region including a quantum well layer, a waveguide structure defining an optical path of the guide region, a gate situated below the guide region for changing the carrier d... | 10/05/1999 |
| 5539668 | Optical switching apparatus A light transmission circuit 20 is biased to one optical bistable region of its multistable characteristic by a bias light from a light source 29. The bias light is superimposed by plural control pulse lights, and the superimposed light is irradiated. If ... | 07/23/1996 |
| 5502585 | Optical transistor The present invention relates to an optical transistor which uses photo-excited carriers to modulate the interaction between the plasma oscillation of free carriers and input electromagnetic radiation to change reflectivity by a large margin, thereby real... | 03/26/1996 |
| 5461507 | Polymer material of thermo-optical effect for a bistable optical device The present invention provides a bistable optical device in which the active medium is a polymer material of thermo-optical effect inserted into a cavity resonator, preferably a FABRY-PEROT resonance cavity, in said cavity the polymer material transmittin... | 10/24/1995 |
| 5450229 | Optical wavelength shifter with reduced gain recovery time A method and apparatus for wavelength shifting an intensity-modulated optical signal are provided. The present invention utilizes an intensity-modulated first optical signal at a first wavelength, a second optical signal at a second wavelength and an opti... | 09/12/1995 |
| 5414726 | Process and apparatus for the modulation and amplification of light beams A process and apparatus for the modulation and amplification of light beams having at least one input light beam (8) supplied to at least one Fabry-Perot resonator having at least one resonance mode, and defined by two mirrors (M1,M2) and produced by stac... | 05/09/1995 |
