Quotables
"I watched his countenance closely, to see if he was not deranged ... and I was assured by other senators after he left the room that they had no confidence in it."
U.S. Senator Smith of Indiana ; After seeing Samuel Morse demonstrate the telegraph.
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| Number | Title | Issue Date |
| 8218212 | Device for the production of holographic reconstructions with light modulators A device for the production of holographic reconstructions having light modulators is disclosed. The device comprises at least one pixelated light modulator illuminated by at least one light source, and a focusing optical element field arrangement which images the l... | 07/10/2012 |
| 8064115 | Hologram recording/reproducing apparatus A hologram recording/reproducing apparatus includes: a coherent light source; a spatial light modulator which spatially modulates light from the coherent light source; a Fourier transform lens which concentrates light modulated by the spatial light modulator upon a ... | 11/22/2011 |
| 7982932 | Hologram decoding apparatus, hologram decoding method and computer readable medium A hologram decoding apparatus includes: an imaging device that receives a reproduced image obtained by reading an encoded image from a hologram recording medium in which a Fourier transform image of the encoded image with n pixels representing digital information is... | 07/19/2011 |
| 7940438 | Hologram reading apparatus, hologram reading method, hologram recording apparatus and hologram recording method A hologram reading apparatus includes: a unit holding a hologram recording medium in which data page is recorded by irradiating as a single beam both reference light and signal light modulated by a spatial light modulator including a first pixel area for modulating ... | 05/10/2011 |
| 7929190 | Integrated planar optical device based on digital planar holography A method of digitally processing light waves passing through a planar structure having given functions ƒin(x, y, ω) and ƒout(x, y, ω) and consisting of a light-propagating and distributing layer is provided. This layer contains a plurality ... | 04/19/2011 |
| 7916369 | Holographic recording and reproducing apparatus A holographic recording and reproducing apparatus includes a spatial light modulator, a Fourier transform lens, a reverse Fourier transform lens, a Charge Coupled Device (CCD) image sensor, and a pinhole disposed at a confocal point of the Fourier transform lens and... | 03/29/2011 |
| 7872788 | Method of digitally processing optical waves in integrated planar optical devices that operate on the principle of digital planar holography A method of digitally processing light waves passing through a planar structure having given functions fin(x, y, ω) and fout(x, y, ω) and consisting of a light-propagating and distributing layer. This layer contains a plurality of interconnec... | 01/18/2011 |
| 7835052 | Hologram recording method and hologram recording device There is proposed a hologram recording method that includes: generating signal light by superimposing a periodic intensity distribution or phase distribution on an intensity distribution of light that expresses binary digital data as a light/dark image; Fourier tran... | 11/16/2010 |
| 7826114 | Hologram recording apparatus, hologram recording method and optical recording medium A hologram recording method is disclosed in which: signal light includes a plurality of arranged reversal regions in which lightness and darkness of plural pixels of a light and dark image is reversed for an intensity distribution of the light and dark image; the si... | 11/02/2010 |
| 7684098 | Optical security system using fourier plane encoding A system for encrypting a set of data may include a signal source, and a first, second, third, and fourth subsystem. The first subsystem may receive a first signal from the signal source and provide as output therefrom a first output signal. The second subsystem may... | 03/23/2010 |
| 7652809 | Method and apparatus for phase-encoded homogenized Fourier transform holographic data storage and recovery An apparatus for writing and reading holograms, comprising a spatial light modulator (SLM) operable in phase mode, having a plurality of pixels for generating an object beam that overlaps with a reference beam; a holographic recording medium (HRM) in the path of the... | 01/26/2010 |
| 7595923 | Optical head and multiplexing methods for reflection type holographic storage using spatial filtering The invention describes a collinear optical head for a reflection-type holographic recording medium, which is capable of obtaining an increased capacity. The optical head presented here allows for high capacity by combining holographic multiplexing methods, based on... | 09/29/2009 |
| 7583425 | High performance adaptive optics with a reconstructed coherent wave front An adaptive optics system comprises a beamsplitter configured to divide an incoming beam with an aberrated wave front into a first input beam and a second input beam, a microelectromechanical system configured to reflect the first input beam onto an image plane, and... | 09/01/2009 |
| 7535608 | Hologram recording method and hologram recording apparatus A hologram recording method includes eliminating a DC component from a Fourier transformation image of a signal light for expressing binary digital data as a brightness image, and irradiating an optical recording medium simultaneously with the signal light from whic... | 05/19/2009 |
| 7535609 | Hologram recording method and device A hologram recording method comprising recording information of signal light as a reflection-type hologram on an optical recording medium, by illuminating the signal light and reference light on a same axis and from different sides of the optical recording medium is... | 05/19/2009 |
| 7532374 | Shift tolerant lens optimized for phase conjugating holographic systems A new type of FT lens is provided that improves phase conjugation in holographic data systems. This type of FT lens has a uniquely large isoplanatic patch. This enables relaxed assembly tolerances, asymmetric reader/writer architectures, and compensation for tilted ... | 05/12/2009 |
| 7511867 | Hologram reproduction method and apparatus A hologram reproduction method for reproducing a hologram from an optical recording medium in which the hologram is recorded by Fourier transforming a signal light, in which digital data is represented by an image of intensity distribution, and a reference light, an... | 03/31/2009 |
| 7440154 | Fourier transform lens system and holographic storage system using same A Fourier transform lens system includes a first lens group having positive power, a second lens group having positive power, and a third lens group having negative power, all arranged on a common optical axis in that sequence. The first lens group includes a first ... | 10/21/2008 |
| 7423808 | Rear projection screen with spatial varying diffusing angle A Fresnel lens of the prior art is split into two Fresnel lenses to allow easier control of the horizontal and vertical viewing angles. In a second embodiment, the Fresnel lens is entirely eliminated. Instead, the diffuser contains elliptical microstructures so that... | 09/09/2008 |
| 7417776 | Hologram recording and reproduction method, hologram recording and reproduction apparatus, and hologram recording medium A method and apparatus is disclosed which can reproduce multi-value data with high reproducibility from a hologram recording medium having data recorded in multi-values therein and can reduce the error rate of reproduction data. A reference gradation pattern is reco... | 08/26/2008 |
| 7411708 | Method and apparatus for phase-encoded homogenized Fourier transform holographic data storage and recovery An apparatus for writing and reading holograms, comprising a spatial light modulator (SLM) operable in phase mode, having a plurality of pixels for generating an object beam that overlaps with a reference beam; a holographic recording medium (HRM) in the path of the... | 08/12/2008 |
| 7355767 | Hologram recording method and hologram recording apparatus A hologram recording method includes generating a signal beam with data formed by superimposing pattern data, the pattern data representing a pattern in which a large number of plural kinds of pixels having different tone values are arranged in a two-dimensional man... | 04/08/2008 |
| 7331924 | Endoscope apparatus having electric bending endoscope An electric bending endoscope apparatus includes an electric bending endoscope, a bending control device for controlling a bending direction and the amount of bending of a bending portion based on a bending instructing signal outputted from a portion for instructing... | 02/19/2008 |
| 7319550 | Method and apparatus for recording hologram, method and apparatus for reproducing hologram, and information retaining body While Fourier transformation of a signal light beam is performed to perform recording during holographic recording so that a focal point is formed outside a holographic recording layer (defocus recording), an aperture is arranged on an outgoing side of the reproduce... | 01/15/2008 |
| 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 |
| 7315408 | Video hologram and device for reconstructing video holograms for large objects A video holographic display device operates so that the size of a reconstructed three dimensional scene is a function of the size of the hologram-bearing medium; the reconstructed three dimensional scene can then be anywhere within a volume defined by the hologram-b... | 01/01/2008 |
| 7307768 | Hologram recording method and hologram recording apparatus A hologram is recorded by irradiating, with a reference light beam, a region corresponding to an intensity distribution of a signal light beam on an optical recording medium. For example, the reference light beam having the intensity distribution which substantially... | 12/11/2007 |
| 7304776 | Integrated optical structures with electrically conductive parts The invention concerns a integrated optical structure comprising a plurality of parts made at least of a dielectric material, stacked according to the levels of integration and defining at least an optical microguide, and further comprising at least an integrated pa... | 12/04/2007 |
| 7295356 | Method for improved holographic recording using beam apodization An apodization system for achieving a substantially uniform intensity profile of a modulated reference beam on a holographic recording medium. The substantially uniform intensity profile serves to improve the quality of any and all recorded holograms. In high-densit... | 11/13/2007 |
| 7283286 | Hologram recording/reproducing device and optical unit A hologram recording/reproducing device includes a laser light source emitting laser light; a spatial light modulator generating signal light and reference light from the laser light emitted from the laser light source, the signal light and the reference light trave... | 10/16/2007 |
| 7262892 | Hologram reconstruction method and device There is provided a hologram reconstruction method including: onto an optical recording medium in which a hologram is recorded by simultaneously irradiating the Fourier transformed signal beam representing a digital data with a bright and dark image and removing a D... | 08/28/2007 |
| 7242988 | Adaptive pattern recognition based controller apparatus and method and human-factored interface therefore The need for a more-readily usable interface for programmable devices is widely recognized. The present invention relates to programmable sequencing devices, or, more particularly, the remote controls for consumer electronic devices. The present invention provides a... | 07/10/2007 |
| 7215383 | Coherent light despeckling A display device or a receiver device for use with coherent light. A controller applies phase shift values to a multi-region phase array at a frequency sufficiently higher than the flicker fusion rate of the human eye or other intended receiver in order to remove th... | 05/08/2007 |
| 7212323 | Methods and apparatus for mass manufacturing two-dimensional binary information on transparent substrates using phase contrast modulated templates Methods and apparatus for making, encoding, and encrypting binary patterns for storing recorded information. One of the methods includes the steps of providing an original image, fragmenting the original image into at least two parts including a first part and a sec... | 05/01/2007 |
| 7209269 | Displaying holographic three dimensional images Holographic three dimensional images of objects can be displayed via a device comprising micro holographic optical elements (MHOEs). A device for displaying holographic three dimensional images of objects can comprise a laser source, a spatial filter using a micro h... | 04/24/2007 |
| 7199912 | Fourier transform lens system and holographic storage system using same A Fourier transform lens system includes: a first lens group having negative power and a second lens group having positive power disposed at one side of the first lens group with the first lens group and the second lens group being arranged on a common optical axis.... | 04/03/2007 |
| 7193754 | Method for calculating and producing a computer-generated hologram and also a storage medium with a computer-generated hologram and a reading device The invention relates to a method for calculating a computer-generated hologram, in which the pixel distribution of the computer-generated hologram is calculated, in which the pixel distribution of a macroscopic superstructure is calculated and in which the pixel di... | 03/20/2007 |
| 7190820 | Registration of nuclear medicine images A method of registering a plurality of functional images includes providing a plurality of functional images, providing a plurality of structural images, each one of which having a known positional relationship to at least one of said plurality of functional images,... | 03/13/2007 |
| 7180644 | Holographic storage lenses Disclosed are holographic storage systems and lenses for holographic storage systems. The lens units can be of a two-component design. The lenses can be used to both record to photorefractive storage media and to read from photorefractive storage media. ... | 02/20/2007 |
| 7164429 | Signal conversion system A method comprising performing white component replacement on a first image signal received by a display device to generate a second image signal, applying a skew-sigmoid opto-electronic transfer function to the second image signal to generate a third image signal, ... | 01/16/2007 |
