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Class 359/315 - Electro-optic


Subclass of Class 359 - Optical: systems and elements
Definition: Subject matter wherein directional modulation is achieved
No. of patents: 177
Last issue date: 06/21/2011


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NumberTitleIssue Date
7171064Thermo-optic switch having fast rise-time
A thermo-optic switch is operated in a novel near-impulse mode in which the drive pulse width is shorter than twice the diffusion time of the switch. The drive pulse width is less than the rise time of the steady-state optical response and also less than the rise ti...
01/30/2007
7161592Electro-optical apparatus and electronic equipment
A pixel electrode and a thin film transistor connected to the electrode are provided above one substrate. A shading film is provided above another substrate. The shading film has an overhanging portion defining a corner cutting in an opening area of each pixel in th...
01/09/2007
7142342Electroabsorption modulator
The electroabsorption modulator comprises a p-i-n junction structure that includes an active layer, a p-type cladding layer and an n-type cladding layer with the active layer sandwiched between the cladding layers. The electroabsorption modulator additionally compri...
11/28/2006
7142343Electro-absorptive optical modulator module having monolithic integrated photo detector
An electro-absorptive optical modulator module monolithic-integrated on a semiconductor substrate, which includes a distributed feedback laser having a grating for oscillating light and to output the oscillated light through a first end and a second end of the modul...
11/28/2006
7099528Methods and devices for coupling electromagnetic radiation using diffractive optical elements
Diffractive optical elements are used in methods and devices for coupling or distributing electromagnetic radiation. The diffractive optical. elements may be adapted to split one or more streams of radiation into multiple streams of radiation or to combine multiple ...
08/29/2006
7071488Active matrix display device and thin film transistor display device
The invention provides an active matrix display device in which active elements are formed on a first substrate, wiring lines are formed on a second substrate, an element chip having at least one active element is peeled off from the first substrate and is then tran...
07/04/2006
7068904Optical element with periodic structure
An optical element comprising a periodic structure in which a refractive index is distributed periodically and a deforming portion, which mechanically deforms by an external action, wherein the deforming portion is integrally arranged with the periodic structure alo...
06/27/2006
7061023Integrated optical devices and methods of making such devices
An integrated-optical device including a substrate having waveguide and a plurality of electrodes to receive electrical signals for controlling the light transmission through the pathways. The waveguide pathways are in an interaction zone of an electro-optically act...
06/13/2006
7046425Multi-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
7038835Optical deflection device and optical deflection method that control occurrence of alignment defect
An optical deflection device includes an optical deflection element having a pair of transparent boards arranged in a mutually opposing manner. A liquid crystal layer is filled between the boards and forms a chiral smectic C phase. An orientation film orients liquid...
05/02/2006
7034980Optical element, optical head, optical recording reproducing apparatus and optical recording/ reproducing method
The invention presents an optical element with which an optical head can be configured, in which there is little deterioration of the correctional effect when the objective lens shifts, as well as an optical head and an optical recording/reproducing apparatus using ...
04/25/2006
7019890Hybrid electro-active lens
An electro-active lens is disclosed. The lens includes at least one electro-active cell to provide a lens having at least two focal lengths, the electro-active cell capable of adjusting its focal length based on voltages applied to the electro-active cell. The volta...
03/28/2006
7016095Method for fabricating an interference display unit
An interference display unit with a first electrode, a second electrode and posts located between the two electrodes is provided. The characteristic of the interference display unit is that the second electrode's stress is released through a thermal process. The pos...
03/21/2006
6999221Bimorphic polymeric photomechanical actuator
A bimorphic polymeric photomechanical actuator, in one embodiment using polyvinylidene fluoride (PVDF) as a photosensitive body, transmitting light over fiber optic cables, and controlling the shape and pulse duration of the light pulse to control movement of the ac...
02/14/2006
6995890Interference display unit
An interference display unit with a first electrode, a second electrode and posts located between the two electrodes is provided. The characteristic of the interference display unit is that the second electrode's stress is released through a thermal process. The pos...
02/07/2006
6985281Package for optical components
An optoelectronic device including a header having an upper surface and including a plurality of conducting pins extending up through the upper surface; an optical device; a tunable optical filter, wherein the optical device and the tunable optical filter are arrang...
01/10/2006
6975782Optical deflector using electrooptic effect to create small prisms
An electrooptical deflector is presented. The electrooptical deflector includes a material that has a different refractive index for different polarization states and changes its refractive index in response to voltage (e.g., lithium niobate or lithium tantalite). I...
12/13/2005
6970626Directional optical coupler
A directional optical coupler is shown and described, which includes an optical cell that is made of a first transparent conductor, a second transparent conductor and an electro-optical member interposed between the two transparent conductors, the electro-optical me...
11/29/2005
6964882Fabricating complex micro-electromechanical systems using a flip bonding technique
A flip-bonding technique is used to fabricate complex micro-electromechanical systems. Various micromachined structures are fabricated on the front side of each of two wafers. One of the wafers is flipped over and bonded to the other wafer so that the front sides of...
11/15/2005
6963441Deactivated 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
6958852Optical modulator, method of achieving velocity matching and impedance matching of optical modulator, and method of manufacturing optical modulator
A Mach-Zehnder optical waveguide is disposed in a substrate made of a material having an electro-optic effect. Coplanar-waveguide modulating electrodes are disposed on a principal surface of the substrate. A dielectric layer is disposed on a reverse surface of the s...
10/25/2005
6952298Electro-optical device, method of driving electro-optical device, method of selecting scanning line in electro-optical device, and electronic apparatus
The invention provides an electro-optical device capable of reducing power consumption. In an organic EL display, the pixel circuits are provided at the intersection portions of the respective scanning lines and the respective data lines, respectively. The organic E...
10/04/2005
6947218Fabry-perot etalon with independently selectable resonance frequency and free spectral range
The invention relates generally to optical interference filters and interferometers. Methods, devices and device components for optical signal generation and processing using optical interference filters and interferometers are presented. The invention provides opti...
09/20/2005
6947367Single means for converting beam widths of plural laser beams with different entry and exit angle with offset
A low-profile optical disk device which performs recording and reproducing using a plurality of laser light sources with different wavelengths, without thug need for additional components. It is used as a DVD-Ram, CD-R or the like. It comprises a plurality of neighb...
09/20/2005
6947625Optical deflector and optical switch
The optical deflector comprises: an optical waveguide 12 of a dielectric material having electrooptical effect; and a pair of electrodes 10, 14 opposed to each other across the optical waveguide, an electric field is applied between the opposed electro...
09/20/2005
6947205Bistable molecular mechanical devices activated by an electric field for electronic ink and other visual display applications
An electric field activated bi-stable molecular system configured within an electric field generated by a pair of electrodes is provided for use, e.g., as electronic ink or other visual displays. The molecular system has at least one rotor portion connected to at le...
09/20/2005
6940636Optical switching apparatus and method of assembling same
In an optical switching apparatus having a mirror structure bonded to a substrate, the gap between the mirror structure and the substrate is controlled by mechanical standoffs placed between the mirror structure and the substrate. The mirror structure is bonded to t...
09/06/2005
6934075Multilayer single lens structure with zooming and focusing functions
The present invention discloses a multilayer single lens structure with zooming and focusing functions, particularly a lens structure that makes use of the special properties of crystalline grains and applying a voltage to achieve the zooming and focusing functions....
08/23/2005
6933013Vacuum deposition of dielectric coatings on volatile material
In order to allow application of any coating under a vacuum over a volatile gelatinous layer, such as polymer dispersed liquid crystal (PDLC) on an optical glass substrate with a transparent electrode, such as indium tin oxide (ITO) on its surface, a layer of an int...
08/23/2005
6933163Fabricating integrated micro-electromechanical systems using an intermediate electrode layer
An intermediate electrode layer is used to fabricate an integrated micro-electromechanical system. An intermediate electrode layer is formed on an integrated circuit wafer. The intermediate electrode layer places drive electrodes a predetermined height above the sur...
08/23/2005
6931164Waveguide devices incorporating Kerr-based and other similar optically functional mediums
A waveguide device is provided comprising an optical waveguide core and a cladding optically coupled to the optical waveguide core. The cladding comprises an optically functional region defining a refractive index that is configured to vary in response to a control ...
08/16/2005
6902454Process for laminating electrically addressable display
A process laminates a flexible electrically addressable display and includes steps of: providing a flexible, electrically addressable liquid crystal display having two surfaces, placing a protective sheet over one of the surfaces, and heating and pressing the protec...
06/07/2005
6882780Wavelength tuneable optical device
An optical device having a photonic band gap element operative such that the refractive index can be varied through application of an electrical signal. This enables the manufacture of tuneable lasers, optical add/drop multiplexers and tuneable optical wavelength co...
04/19/2005
6879431Optical deflection apparatus and optical deflection method
A liquid crystal optical phase modulator includes first and second substrates. A plurality of strip-shaped individual electrodes that are arranged parallel to each other on one surface of the first substrate. A common electrode is arranged on one surface, which face...
04/12/2005
6829079Optical path control apparatus with mirror section, and manufacturing method for the same
An optical path control apparatus includes a first substrate. A second substrate is movably provided for the first substrate. A mirror section is provided on the second substrate. A driving section moves the second substrate such that a first optical path of input l...
12/07/2004
6829070Electro-optic device and electronic device
The invention provides an electro-optic device capable of keeping the cell gap constant or substantially constant throughout the substrate surface regardless of the existence of a liquid crystal inlet. The electro-optic device of the invention has a TFT array substr...
12/07/2004
6798559Electro-optic spatial modulator for high energy density
The present invention provides an imaging assembly comprising: (a) a modulator crystal comprising a first surface and a second surface substantially opposite to the first surface, wherein the first surface comprises an active area; and (b) a heating element for heat...
09/28/2004
6791757Optical device for filtering and sensing
An apparatus for filtering electromagnetic waves and sensing deposition of chemical species, the apparatus having a substrate having a surface relief structure containing at least one dielectric body with physical dimensions smaller than the wavelength of the filter...
09/14/2004
6760493Coplanar integrated optical waveguide electro-optical modulator
A coplanar integrated optical waveguide electro-optical modulator comprises a substrate (1) of an electro-optic material, at least two optical waveguides (41, 42) integrated in the substrate in correspondence of a surface (71) thereof, and an el...
07/06/2004
6757101None-mechanical dual stage optical switches
The present invention provides improved optical switches in which no mechanical movement is required to direct optical pathways between plural fiber ports. Advantageously, the inventive switches incorporate two-stage polarization rotation to improve isolation depth,...
06/29/2004
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