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| Number | Title | Issue Date |
| 7295362 | Continuous direct-write optical lithography An optical lithography system comprises a light source, a spatial light modulator, imaging optics and means for continuously moving a photosensitive substrate relative to the spatial light modulator. The spatial light modulator comprises at least one array of indivi... | 11/13/2007 |
| 7265775 | Three-dimensional display apparatus A three-dimensional image display apparatus comprising a display panel, which displays a parallel projection image corresponding to a three-dimensional image, and an array plate disposed on a front of the display panel and having pinholes arranged two-dimensionally.... | 09/04/2007 |
| 7219016 | Systems and methods for automated analysis of cells and tissues Systems and methods for rapidly analyzing cell containing samples, for example to identify morphology or to localize and quantitate biomarkers are disclosed. ... | 05/15/2007 |
| 7194139 | Image compression A method of image compression, comprising: providing image-data encoding light; transforming said light from an image space to a transform space utilizing an optical component; and converting said transformed light into electrical signals, which electrical signals r... | 03/20/2007 |
| 7167296 | Continuous direct-write optical lithography An optical lithography system comprises a light source, a spatial light modulator, imaging optics and means for continuously moving a photosensitive substrate relative to the spatial light modulator. The spatial light modulator comprises at least one array of indivi... | 01/23/2007 |
| 7098871 | Optical scanning system with correction A scanning system device has a predetermined aberration as it scans or switches light along selected optical paths. A deformable membrane receives the light and introduces an inverse “aberration” that offsets that of the scanning system. In one embodiment the sc... | 08/29/2006 |
| 7012749 | Optical processing A method of performing a DFT (discrete Fourier transform) or a DFT derived transform on data, comprising: providing spatially modulated light having spatial coherence, said spatially modulated light representing the data to be transformed; Fourier transforming said ... | 03/14/2006 |
| 6424449 | Optical information processing apparatus for image processing using a reflection type spatial light modulator A collimator optical system collimates light from the coherent light source. A reflection type spatial light modulator returns collimated light from the collimator optical system to the collimator optical system. A Fourier transformation optical system Fo... | 07/23/2002 |
| 6252714 | Diffractive homogenizer with compensation for spatial coherence A diffractive homogenizer is provided for receiving a beam of laser energy and producing a desired illumination pattern in a target plane. The homogenizer is made up of a plurality of diffractive sub-elements, each of which contributes to all or a portion... | 06/26/2001 |
| 6229649 | Pseudo deconvolution method of recovering a distorted optical image A first lens produces a Fourier transform of the wavefront distorted optical image at the Fourier transform plane. A phase encoded filter is positioned at the transform plane and a second filter is tandemly positioned with respect to the first filter, the... | 05/08/2001 |
| 5883743 | Vander-Lugt correlator converting to joint-transform correlator A module, capable of being mounted on a printed circuit board, containing optical components necessary for optical correlation and a unique folded light path technique for conversion from a Vander Lugt optical correlator to a joint-transform optical corre... | 03/16/1999 |
| 5648872 | Single lens joint transform correlator utilizing a fresnel zone plate signal An amplitude encoded lens function signal, similar to a zone plate, is formed in the transform plane of a chirp encoded joint transform correlator. CCD correlation spot light sensor is separated from the transform plane by the focal length of the encoded ... | 07/15/1997 |
| 5523881 | Optical correlator using light phase modulation and two reflective spatial light modulators An optical signal processor which employs a coherent light source, two spatial light modulators and a beam splitter. Light is from the source is reflected from the beam splitter and sent to a first spatial light modulator, then sent through the beam split... | 06/04/1996 |
| 5491683 | Optical information recording/reproducing method An optical information recording/reproducing method includes that information is recorded on a rotary disk in an optically discriminative form, a light emitted from a light source is focused on the surface of the disk to form a light spot, the information... | 02/13/1996 |
| 5485312 | Optical pattern recognition system and method for verifying the authenticity of a person, product or thing A method of verifying the authenticity of an object is disclosed preferrably employing a joint transform coherent optical processor. An unreadable and hence non-counterfeitable phase mask is coupled to the object and the optical processor compares the pha... | 01/16/1996 |
| 5454047 | Optical method and system for generating expansion coefficients for an image processing function A system for optically generating expansion coefficients for an image processing function. The invention (10) includes a first optical element (18) for providing a transform of an image provided at a first image plane (16). A second optical arrangement (2... | 09/26/1995 |
| 5247388 | Continuously variable delay lines An acousto-optic apparatus is described that varies the time delay of electrical signals over a continuum of delays. In the preferred embodiment, a light source, which can be either coherent or incoherent, emits an optical beam that is focused into an aco... | 09/21/1993 |
| 5233554 | Programmable optical correlator An optical correlation system employing the degenerate four wave mixing uses cross-polarized pump and probe beams to prevent the writing of a volume transmission phase hologram in a photorefractive crystal having an applied electric field parallel to the ... | 08/03/1993 |
| 5124842 | Image input/output apparatus An image input/output apparatus which can reproduce an image having a large focal depth, without decreasing the resolution and luminance. The apparatus has a wide range of practical applications, and can be, easily, quickly and exactly put to practical us... | 06/23/1992 |
| 5121371 | Optical servo system for magnetic disk Coherent light passing through slits produces an optical interference pattern having a fringe spacing related to the spacing of the servo tracks on a magnetic disk. The convolution of the interference pattern with the servo tracks generates a quadrature s... | 06/09/1992 |
| 5086483 | Optical processor including electronic processing array A hybrid optical/electronic processor for determining the presence of a feature of interest in an input image. The system includes an optical processor for convolving the input image with a target image representing the feature of interest, to produce an ... | 02/04/1992 |
| 5020111 | Spatial symmetry cueing image processing method and apparatus An optical correlation method and apparatus recognizes and locates specific patterns in a scene based on the spatial symmetries associated with that pattern. An input scene is divided into two identical scenes, one of which plays the role of the input sce... | 05/28/1991 |
| 4948212 | Optical processing in III-V and II-VI compound semiconductors Optical processing using photorefractive GaAs and other compound semiconductor crystals (28) is achieved in a four-wave mixing configuration. Potential applications of optical processing include spatial light modulation, phase conjugation, correlation, co... | 08/14/1990 |
| 4726639 | Optically implemented memory correlator using a photorefractive crystal An optically implemented technique which generates the correlation function f two electrical signals. A reference signal is used in conjugation with an acousto-optic device to generate an optical field which is incident on a photorefractive crystal. This p... | 02/23/1988 |
| 4712059 | Broadband optical processor for determination of frequency and time of arrival of multiple signals A real time, optical processor for the detection and separation of multiple frequency hop signals and which is capable of determining both the frequency and the time of arrival for all frequencies within a specified bandwidth.... | 12/08/1987 |
| 4623245 | System of white-light density pseudocolor encoding with three primary colors A process/system of generating density pseudocolor encoding with three primary colors using a white-light optical processor. Spatial encodings are made with positive, negative and product positive and negative photographic image transparencies and the pse... | 11/18/1986 |
| 4620290 | Transmission line dividers multipliers Fourier transformers and convolvers A transmission line is used to implement a divider or multiplier. Transmission lines are used to implement coefficient multipliers in Fourier transformers and Convolvers.... | 10/28/1986 |
| 4490849 | Correlation plane recognition processor An automatic processing circuit is associated with an optical matched filter system which supplies correlation imagery representing the products of diffraction patterns of known objects with that of an input scene in which the known objects are to be dete... | 12/25/1984 |
| 4462046 | Machine vision system utilizing programmable optical parallel processing An object or scene viewed by the programmable optical processor based machine vision system is converted into a video signal representative of a spatial orientation and position of a viewed object being viewed. Reference information stored within a system... | 07/24/1984 |
| 4445141 | Hybrid optical/digital image processor A two PROM coherent optical processing system under computer control provides zoom of the input object, rotation of the filter PROM relative to Fourier transform of the coherent light image, serial painting of the spatial filter on the filter PROM using a... | 04/24/1984 |
| 4415226 | Apparatus for controlling light in electrooptic waveguides with individually addressable electrodes Apparatus for receiving light entering therein and controlling the directions in which portions of the light travel therethrough. Input means (21) directs portions (22) of the entering light (20) in a predetermined input direction (23) into a processing r... | 11/15/1983 |
| 4282511 | Apparatus for discerning the noticeable presence of spatial fluctuations of intensity within a two-dimensional visual field The spatial field is sequentially convolved at each of a plurality of uniformly-spaced intervals along a field dimension with a given type of limited spatial extent kernel function which preferably has a one-octave spatial bandwidth. Convolution combining... | 08/04/1981 |
| 4282510 | Apparatus for discerning the noticeable presence of spatial fluctuations of intensity within a two-dimensional visual field System for the analysis of an optically sensed field, useful, for example, for detecting defects in an object such as a shadow mask of a color kinescope, which permits relatively rapid examination of the article or surface being scanned. An important feat... | 08/04/1981 |
| 4277137 | Coherent optical correlator Reference scenes stored in a filter set containing an array of sets of suimposed, holographic, matched filters are optically correlated with input images displayed on an optically-addressed, liquid crystal, light modulator 34. In operation, a selected la... | 07/07/1981 |
| 4089589 | Optical signal processing system and method The optical system includes a point source of monochromatic light which is focused by a first lens onto a frequency plane. A pair of transparencies bearing information in a single-axis density-modulated form are interposed before the frequency plane. The ... | 05/16/1978 |
| 4081673 | Transverse tomography apparatus and method An improved apparatus and method for generating the two-dimensional filtered back-projected image of a slice of an object. In accordance with the invention there is provided a photodetector means and illuminating means directed toward the photodetector me... | 03/28/1978 |
| 4063799 | Photographic imaging This disclosure depicts an optical system and method for encoded storage and retrieval, wherein record images are enciphered using incoherent light and wherein deciphering of the coded images is performed in coherent light. More particularly, the disclosu... | 12/20/1977 |
| 4023037 | Decoding composite images of three-dimensional objects by convolution A method of decoding composite images of three-dimensional objects which are coded by means of a large number of radiation souces of different perspective and which are decoded by means of a point hologram. The point hologram is produced by means of a fla... | 05/10/1977 |
| 4000949 | Photomask inspection by optical spatial filtering An intensity-type optical spatial filtering system is arranged to form a composite visual image of all nonperiodic errors in a photomask or other two-dimensional pattern which contains an array of regularly spaced, normally identical elements. A coherent ... | 01/04/1977 |
| 3984802 | Feature recognition system 9. A feature recognition system for identifying an unknown signal source, mprising: First means for receiving a signal from the unknown signal source and producing a hologram thereof; Second means for receiving the hologram and for correlating it with a s... | 10/05/1976 |
