U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Icon_funbox Quotables

"Rail travel at high speeds is not possible because passengers, unable to breathe, would die of asphyxia."

Dionysius Lardner, Professor of Natural Philosophy and Astronomy at University College, London ; 1830

Newsletter  PatentStorm News

Make the Most of Our Site

See this month's Top Inventors and Most Cited Patents.

Stay on top of the latest innovations by subscribing to an RSS feed.

Registered users: Manage your profile.

 

Class 349/17 - Computational system employing liquid crystal element (neural network, correlation device, optical computer)


Subclass of Class 349 - Liquid crystal cells, elements and systems
Definition: Subject matter wherein liquid crystal cells are utilized
No. of patents: 94
Last issue date: 01/18/2011


1      
NumberTitleIssue Date
7872695Process of producing optical compensation sheet, polarizing plate comprising an optical compensation sheet produced by said process, and liquid crystal display device
A process of producing an optical compensation sheet is provided, which comprises applying a solution comprising a liquid crystalline compound and a photo-polymerization initiator on a transparent support, drying the solution at a drying temperature which satisfies ...
01/18/2011
7417628Liquid crystal display apparatus
A liquid crystal display apparatus comprises a liquid crystal display panel including a display region, a planar light source device having a light exit surface which faces the liquid crystal display panel and from which planar light exits toward the liquid crystal ...
08/26/2008
7382512Resistivity phase change material
Various devices and methods employing a resistive phase change material are disclosed. ...
06/03/2008
7369327Variable optical-property element and optical apparatus including the same
A variable optical-property element includes a liquid crystal the pitch of twist is less than 60 times the wavelength of light used, so that a spatially uneven electric or magnetic field or temperature is applied to the liquid crystal to thereby form an index distri...
05/06/2008
7345669Photometric device of liquid crystal display and liquid crystal display
A photometric device of liquid crystal display and a liquid crystal display in which photometry can be performed without relying upon manpower and the liquid crystal plane is shielded only at the time of photometry. The photometric device comprises a liquid crystal ...
03/18/2008
7317814Authentication system and method
An authentication system using a correlator that correlates an input with a reference wherein at least one of the input and reference comprises a phase volume mask having structures, preferably points, that are each less than about six microns in size and can have a...
01/08/2008
7309132Modular keypad assembly
A modular keypad assembly for use with a projection device is provided. This modular keypad assembly may include a user input through which a user may operate the projection device. Such a modular keypad assembly may include a elastomer keypad, a keypad support plat...
12/18/2007
7294999Apparatus for automatically displaying the grade of liquid crystal display device and operating method thereof
An apparatus for automatically displaying a grade of a liquid crystal display device and operating method thereof, includes a grade determining unit of a liquid crystal display panel; a grade inputting unit for inputting the grade of the liquid crystal display panel...
11/13/2007
7286766Free space optical communication system with power level management
A free space optical communication system includes an adaptive optical power regulator. The adaptive optical power regulator adapts to changes in effective loss associated with the free space optical path. In one embodiment the adaptive optical power regulator adapt...
10/23/2007
7265864Optical write apparatus and optical write method
An optical write apparatus has an image display screen 102 for displaying an image and role switch section 105 for switching the image display screen 102 between a role in displaying an image for observation and that in writing an image onto an ...
09/04/2007
7262430Organic photocurrent multiplication device
Organic semiconductor layers (2, 4) are laminated sandwiching an insulator thin layer (3), and translucent electrodes (1, 5) are formed on the surfaces of the organic semiconductor layers (2, 4), respectively. While a voltage is applied s...
08/28/2007
7193772Conductively 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
7136710Ergonomic man-machine interface incorporating adaptive pattern recognition based control system
An adaptive interface for a programmable system, for predicting a desired user function, based on user history, as well as machine internal status and context. The apparatus receives an input from the user and other data. A predicted input is presented for confirmat...
11/14/2006
7058252Optical switching apparatus
A light direction switching apparatus and method is described. The light direction switching apparatus comprises a passive birefringent lens (138), e.g. a birefringent lenticular screen, and a switchable polariser (146). By switching the polariser (...
06/06/2006
7037735Apparatus and method for testing defects
A defect inspection method includes radiating an illumination slit-shaped beam having lights substantially parallel to a longitudinal direction to a substrate having circuit patterns in a direction inclined at a predetermined gradient relative to the direction of a ...
05/02/2006
7023503Image sensor with photosensitive thin film transistors
An image sensor array includes image sensors having photo TFTs to generate photocurrent in response to received images. The photo TFTs each have their respective gate electrodes shorted to source electrodes to increase generated photocurrent. Storage capacitors are ...
04/04/2006
7021775Modular keypad assembly
A modular keypad assembly for use with a projection device is provided. This modular keypad assembly may include a user input through which a user may operate the projection device. Such a modular keypad assembly may include a elastomer keypad, a keypad support plat...
04/04/2006
7019722Recording method, photo addressable recording medium, display device and recording device
A recording method by which rewriting is performed with high sensitivity and favorable display on-off operation is performed, and which may be driven by a compact, low-cost power supply, and further make color display, a photo addressable recording medium, a display...
03/28/2006
6952296Method and device for forming the intensity profile of a laser beam
The present invention relates to a method and a device for forming the intensity profile of a laser beam, in particular for producing a homogeneous intensity profile. In an embodiment of the present invention, the laser beam can strike an optically addressable spati...
10/04/2005
6917426Real-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
6914647Electro-optical light modulator
An electrically drivable light modulator having liquid crystal layers, which are disposed one behind the other and are enclosed between transparent plates having a surface anisotropy that orients the molecules of the liquid crystals and having electrodes for generat...
07/05/2005
6831708Image display apparatus
As a structure capable of housing a recording/reproducing unit within a thin type image display apparatus without damaging the characteristic of the thin-type image display apparatus such as a wall-hung TV when using the unit, there is provided an image display appa...
12/14/2004
6819335Number-of-gradation-levels decreasing method, image displaying method, and image display
A liquid crystal display 200 comprises a 1024-to-1021 gray scale conversion calculator 1 for converting an image data A(1024) of 1024 gray levels (=10 bits) into an image data Y(1021) of 1021 gray levels, an adjusting four-level s...
11/16/2004
6762882System and method for use of dark field fourier diaphragm in multi-frequency imaging
An imaging system is disclosed that includes an illumination source, a modulator and a variable Fourier diaphragm. The illumination source produces a first illumination field having a first frequency and a second illumination field having a second frequency. The mod...
07/13/2004
6680797Spatial light modulators for full cross-connections in optical networks
A polarization-independent optical switch is disclosed for switching at least one incoming beam from at least one input source to at least one output drain. The switch includes a polarizing beam splitter to split each of the at least one incoming beam int...
01/20/2004
6661495Pancake window display system employing one or more switchable holographic optical elements
An optical system including one or more switchable holographic optical elements is described for use with a pancake window display system. Each of the switchable holographic optical elements of the optical system operates between active and inactive state...
12/09/2003
6654156Image display system
An image display system, e.g. for projection type displays, has an electrically addressed spatial light modulator or EASLM (1) and an optically addressed spatial light modulator or OASLM (5). An image formed on the EASLM (1) is transferred to a part of th...
11/25/2003
6529254Optical element and method for manufacturing the same, and optical apparatus and method for manufacturing the same
It is the object of the present invention to provide an optical element for controlling the polarization state spatially by using a liquid crystal and a method for manufacturing the same, and to provide an optical apparatus for correcting the polarization...
03/04/2003
6525879Optical filtering apparatus and method
An optical filtering apparatus and method, wherein at least one polarizer is located in the path of radiation passing through a birefringent medium. The invention can be used to process complementary bands of spatial frequency spectra. The invention can b...
02/25/2003
6515717Computer-based system for producing multi-color multilayer images on substrates using dry multi-colored cholesteric liquid crystal (CLC) pigment materials applied to binder material patterns
A computer-based system for producing a multi-color multilayer image on a substrate using multi-colored cholesteric liquid crystal (CLC) pigment materials made from CLC flakes tuned to predetermined bands of color. A computer-controlled image generator au...
02/04/2003
6348990Spatial light modulator and spatial light modulating method
A signal image is transmitted by write light from a transmission type liquid crystal element 4 to an optically-addressed type parallel-aligned nematic-liquid-crystal spatial light modulator 6. The numerical aperture NAL of a relay lens 5, the p...
02/19/2002
6252570Polarized three-demensional video display
A display system, display device and add-on for a display device are disclosed to provide for viewing a three-dimensional image using polarization. The image is separated into first eye and second eye components. In one embodiment, a system comprises a co...
06/26/2001
6191829Optical apparatus for optically rotating a portion of a polarization axis of a linearly polarized light
An optical apparatus provided with a focusing optics (104) for focusing linearly polarized light has a construction wherein an optical rotatory element (103) having a region for optically rotating a polarization axis of the linearly polarized light in at ...
02/20/2001
6185548Neural network methods to predict enzyme inhibitor or receptor ligand potency
A new method to analyze and predict the binding energy for enzyme-transition state inhibitor interactions is presented. Computational neural networks are employed to discovery quantum mechanical features of transition states and putative inhibitors necess...
02/06/2001
6011643Device with a laser for image presentation
In a device with a laser for image presentation in which the laser emits laser light of a defined coherence length L at a given wavelength λ and in which there is arranged in the path of the laser light a first structure with which phase displacements ca...
01/04/2000
5978053Characterization of collimation and beam alignment
An apparatus and method for characterizing light beam collimation and alignment. A liquid crystal device receiving a light beam from a collimation lens has a lenslet array generated thereon. A corresponding array of point spread functions are detected by ...
11/02/1999
5963291Optical attenuator using polarization modulation and a feedback controller
An optical power regulator employs a variable optical attenuator having a first birefringent element that spatially separates the input optical beam into two orthogonally-polarized beams. Both beams pass through a polarization modulator (e.g., a liquid cr...
10/05/1999
5847788Optical information processor
An optical information processor according to the present invention comprises a spatial light modulator 1 illuminated by linearly polarized coherent light and a linear polarization detector element 2 for detecting light diffracted by the spatial light mod...
12/08/1998
5841489Phase-only optically-addressed type spatial light modulator
In a spatial light modulator of the present invention, a photoconductive layer formed of photoconductive material receives write light having a spatial distribution in its intensity and changes resistivity of the photoconductive material dependently on th...
11/24/1998
5798864Projection type image display apparatus
A projecting type image display apparatus includes a calculation processing unit for calculating a Fraunhofer diffraction image of an original image, an image display unit for producing/displaying the calculated Fraunhofer diffraction image, and an image ...
08/25/1998
1      
 
Sign InRegister
Username  
Password   
forgot password?