"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
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| Number | Title | Issue Date |
| 7872695 | Process 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 |
| 7417628 | Liquid 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 |
| 7382512 | Resistivity phase change material Various devices and methods employing a resistive phase change material are disclosed. ... | 06/03/2008 |
| 7369327 | Variable 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 |
| 7345669 | Photometric 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 |
| 7317814 | Authentication 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 |
| 7309132 | Modular 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 |
| 7294999 | Apparatus 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 |
| 7286766 | Free 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 |
| 7265864 | Optical 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 |
| 7262430 | Organic 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 |
| 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 |
| 7136710 | Ergonomic 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 |
| 7058252 | Optical 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 |
| 7037735 | Apparatus 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 |
| 7023503 | Image 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 |
| 7021775 | Modular 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 |
| 7019722 | Recording 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 |
| 6952296 | Method 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 |
| 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 |
| 6914647 | Electro-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 |
| 6831708 | Image 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 |
| 6819335 | Number-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 |
| 6762882 | System 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 |
| 6680797 | Spatial 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 |
| 6661495 | Pancake 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 |
| 6654156 | Image 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 |
| 6529254 | Optical 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 |
| 6525879 | Optical 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 |
| 6515717 | Computer-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 |
| 6348990 | Spatial 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 |
| 6252570 | Polarized 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 |
| 6191829 | Optical 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 |
| 6185548 | Neural 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 |
| 6011643 | Device 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 |
| 5978053 | Characterization 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 |
| 5963291 | Optical 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 |
| 5847788 | Optical 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 |
| 5841489 | Phase-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 |
| 5798864 | Projection 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 |