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| Number | Title | Issue Date |
| 8149493 | Electro-optic silicon modulator In a general aspect, a device includes a substrate, a light transmission formed on a top surface of the substrate, a first contact, and a second contact. The light transmission structure includes a first doped region; a second doped region doped oppositely to the fi... | 04/03/2012 |
| 7426069 | Optical apparatus and imaging apparatus An optical apparatus is disclosed. The optical apparatus includes: a first optical element having a first polarizing layer containing a material having a refractive index that changes in accordance with the magnitude of applied voltage and first and second transpare... | 09/16/2008 |
| 7388705 | Optical apparatus To provide an optical apparatus which controls an interface state to change a focal length by using an optical element having a container sealing first liquid that is conductive or polarized and second liquid that does not mutually mix with the first liquid with the... | 06/17/2008 |
| 7369290 | Modulator bias control Approaches to bias control are disclosed for an optical modulator that modulates an optical carrier with a data input signal. In one embodiment an electrical bias input signal provided to the modulator is adjusted based on a characteristic of the data input signal d... | 05/06/2008 |
| 7339643 | Arrangements in a transflective liquid crystal display This invention relates to a transflective liquid crystal display device (11, 21), comprising a plurality of pixels, each comprising a liquid crystal layer (12, 22), being sandwiched between front and back electrode means (13, 23; 14, 24) as well... | 03/04/2008 |
| 7310179 | Method and device for selective adjustment of hysteresis window The width and location of a hysteresis window of an interferometric modulator may be altered by adjusting various physical characteristics of the interferometric modulator. Thus, depending on the particular application for which the interferometric modulators are ma... | 12/18/2007 |
| 7302121 | Optical device and drive voltage supply device The present invention is directed toward an optical device and a drive voltage supply device, which prevent occurrence of a DC drift and enable stable selection of light of desired wavelength without deteriorating a filtering characteristic. The optical device compr... | 11/27/2007 |
| 7298540 | Equalizing optical wavelength routers A dynamic equalizing optical channel router includes an input port for receiving a wavelength division multiplexed composite optical signal comprising a plurality of channels; at least one output port; a diffraction grating optically coupled to the input and output ... | 11/20/2007 |
| 7294372 | Conductive color filters A conductive color filter includes a layer of carbon nanotubes covered by a colored polymeric resin binder. ... | 11/13/2007 |
| 7289209 | Programmable spectral imaging system An imaging system having a programmable spectral transmission function, that includes an input image plane for passing input imaging light into the imaging system; a dispersive optical system for separating the input imaging light into its corresponding spectral com... | 10/30/2007 |
| 7274416 | Display device A subtractive display device comprising picture elements having sub-pixels, each sub-pixel comprising a stack of switchable layers (5,25) or components and a color filter part (21). ... | 09/25/2007 |
| 7271899 | Millimetre-wave detection device for discriminating between different materials A detection device that can be used for detecting objects behind clothing etc including a dielectric lens and a receive element sensitive to millimetre wave radiation. Prior art systems produce an image of a scene usually using scanning optics. This can be large and... | 09/18/2007 |
| 7259844 | High throughput darkfield/brightfield wafer inspection system using advanced optical techniques The broadband brightfield/darkfield wafer inspection system provided receives broadband brightfield illumination information via a defect detector, which signals for initiation of darkfield illumination. The defect detector forms a two dimensional histogram of the d... | 08/21/2007 |
| 7206114 | Plasmon-photon coupled optical devices The present invention is directed to optical devices. More specifically, the disclosed devices include a film defining a periodic array of surface elements so as to give rise to surface plasmon polaritons. The film also includes at least a single aperture having a d... | 04/17/2007 |
| 7190519 | Plate-like polarizing element, a polarizing conversion unit provided with the element, and a projector provided with the unit This specification discloses a polarizing. element for dividing light into first and second polarized lights differing in polarized state from each other by a polarizing dividing surface, directing the first polarized light in a first direction, reflecting the secon... | 03/13/2007 |
| 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 |
| 7142344 | Optical apparatus To provide an optical apparatus which controls an interface state to change a focal length by using an optical element having a container sealing first liquid that is conductive or polarized and second liquid that does not mutually mix with the first liquid with the... | 11/28/2006 |
| 7141815 | Fiber optic-based probe for use in saltwater and similarly conductive media as found in unenclosed natural environments Arrays of optical fibers connected to specially configured electronics, e.g., a phototransistor, an LED, an amplifier, a detector, and display, software and PCMCIA A/D board available on a personal computer, are used to obtain continuous real-time acquisition, proce... | 11/28/2006 |
| 7127179 | Polarization encoder device A optical polarization encoding device (16) provides wavelength dependent processing of polychromatic optical signals without prior separation into narrow wavelength bands. Embodiments of the encoding device include a wavelength dependent tunable optical swit... | 10/24/2006 |
| 7122786 | Controlling apparatus and controlling method of optical switching device A controlling apparatus and a controlling method of an optical switching device are capable of automatically correcting angle deviations of tilt-mirrors to thereby reduce an optical loss. To this end, such as in a three-dimension type optical switching device includ... | 10/17/2006 |
| 7119911 | Moiré deflectometer including non-mechanical, transparent, spatial light modulators for demonstrating two-axis rulings A Moiré deflectometer includes at least three non-mechanical, transparent, spatial light modulators for demonstrating two sets of patterns on two parallel planes on two of the modulators thereby creating a Moiré fringe pattern and a method for using the same. More... | 10/10/2006 |
| 7110154 | Plasmon-photon coupled optical devices The present invention is directed to optical devices. More specifically, the disclosed devices include a film defining a periodic array of surface elements so as to give rise to surface plasmon polaritons. The film also includes at least a single aperture having a d... | 09/19/2006 |
| RE39243 | 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... | 08/22/2006 |
| 7035009 | Apparatus and method for controlling polarization in an optical communications medium An exemplary polarization controller includes a first optical element having a first optical axis and configured to receive light having a first phase, a second optical element having a second optical axis and configured to emit the light having a second phase, and ... | 04/25/2006 |
| 7023602 | Reflective LCD projection system using wide-angle Cartesian polarizing beam splitter and color separation and recombination prisms An optical imaging system including an illumination system, a Cartesian PBS, and a prism assembly. The illumination system provides a beam of light, the illumination system having an f/# less than or equal to 2.5. The Cartesian polarizing beam-splitter has a first t... | 04/04/2006 |
| 7024070 | Electronic fiber optic switch with optical interconnect A large fiber optic switch system with a free-space optical interconnection configuration. The switch system comprises a plurality of individual switch units, each individual switch unit having a plurality of electronic multi-switch switches each multi-switch switch... | 04/04/2006 |
| 7002760 | Adjustable convergence device for a projector and projector equipped with such a convergence device An improved adjustable convergence device for adjusting the position of a pixel light modulator of a projector comprising at least two such light modulators mounted on the frame of the projector, said convergence device comprising a plate assembly which is fixed on ... | 02/21/2006 |
| 6992748 | Scalable and mass-manufacturable OXC using liquid crystal cells A 1XN (or NX1) optical connector for steering light is provided, which may be formed into an optical cross connecter. The optical connector generally includes a plurality of N stages, each stage including a liquid crystal cell and a polarizing beam splitter. The liq... | 01/31/2006 |
| 6963441 | Deactivated electro-optic material and method of forming the same An electro-optically deactivated transmissive material comprises a plurality of chemicals which are sufficient, in combination, to enable formation of an electro-optic material having an index of refraction that is responsive to an electric field. The chemicals are ... | 11/08/2005 |
| 6958843 | Wide-range and high-resolution variable optical delay Variable optical delay (VOD) systems are provided that include optical switching techniques, and optical manifold techniques, and/or index switching techniques. In certain embodiments, liquid crystal cells are used to impart fine delay in a VOD system. Medium delay ... | 10/25/2005 |
| 6950219 | Optical apparatus To provide an optical apparatus which controls an interface state to change a focal length by using an optical element having a container sealing first liquid that is conductive or polarized and second liquid that does not mutually mix with the first liquid with the... | 09/27/2005 |
| 6947627 | Compact optical switches Systems and methods to provide compact, scalable, low loss optical switches. An optical switch of this invention includes two or more directing elements, each directing element having two or more sections. Each section includes a switchable deviating element. During... | 09/20/2005 |
| 6947618 | Polarization controller Polarization controlling elements equivalent to quarter and half waveplates are constructed from sequences of variable retarder plates having fixed retardation axes. An endless polarization control algorithm is provided. ... | 09/20/2005 |
| 6917426 | Real-time wavefront sensor system The system includes a first polarizing element; an electro-optically driven birefringent element; a second polarizing element; an optical assembly; and, an optical-to-electronic imaging sensor assembly. The first polarizing element receives an incoming optical wavef... | 07/12/2005 |
| 6895688 | Liquid crystal polarization rotator and method of using same A liquid crystal polarization rotator device is able to rotate polarization fast enough to compensate polarization mode dispersion. The amount or degree of rotation is rapidly reconfigurable. The device includes a cavity filled with a nematic liquid crystal material... | 05/24/2005 |
| 6876403 | Polarized light color filter and video projector comprising the same A polarized light color filter for producing R, G and B primary lights from inputted white light in time division. The filter is small in size and strong against mechanical vibration. The projections of the R, G and B lights can be arbitrarily varied in one period. ... | 04/05/2005 |
| 6876481 | Spatial light modulator A spatial light modulator includes: a magnetic layer that is made of a magneto-optic material and includes a plurality of pixels in each of which a magnetization direction is independently set and each of which has a function of causing a rotation of a polarization ... | 04/05/2005 |
| 6806988 | Optical apparatus To provide an optical apparatus which controls an interface state to change a focal length by using an optical element having a container sealing first liquid that is conductive or polarized and second liquid that does not mutually mix with the first liquid with the... | 10/19/2004 |
| 6801676 | Method and apparatus for phase shifting an optical beam in an optical device with a buffer plug An apparatus and method for modulating a phase of optical beam with reduced contact loss. In one embodiment, an apparatus according to embodiments of the present invention includes a first region of an optical waveguide disposed in semiconductor material. The first ... | 10/05/2004 |
| 6768573 | Polarization control optical space switch The present invention is directed to an optical space switch accommodating a plurality of input light paths and output light paths. The optical space switch comprises a plurality of polarization control optical switches, each consisting essentially of: polarization ... | 07/27/2004 |
