Matches 251 - 300 out of 438 < 1 2 3 4 5 6 7 8 9 >
Match Document Document Title
5661577 Incoherent/coherent double angularly multiplexed volume holographic optical elements  
Novel multiplexed volume holographic optical elements for the development of highly multiplexed photonic interconnection and holographic memory systems with maximum optical throughput efficiency...
5652666 Holographic 3-D display system with spatial light modulator  
A method of using a display system having a spatial light modulator (14) to display holographic images. The spatial light modulator (14) generates images that represent vertical strips of a...
5650247 Preparation and reproduction of filters and preparation of filter photographic materials  
The preparation of a filter comprises illuminating a photographic material and a mask located at a given distance therefrom with light from the opposite directions to make a hologram and then...
5646753 Display system  
A display system arranged closer than the focus point of the eyes. The display system comprises a hologram carrier for generating a virtual image by a hologram of a pixels' image arranged in two...
5644414 Stereoscopic display method of hologram and its forming method and its stereoscopic display apparatus  
A hologram of a virtual object or an object which actually exists is formed and a solid image is displayed. 3-dimensional information of the object to be displayed is divided into regions in the...
5627664 Holographic storage with combined orthogonal phase codes and random phase codes  
A method and apparatus for holographic storage with combined orthogonal phase codes and random phase codes are provided in which a reference beam (18) is encoded with a combination orthogonal phase...
5621549 Method and apparatus for positioning a light beam on a holographic media  
An apparatus for positioning a data and reference beam onto the surface of a holographic storage media (10) includes a laser (16) for generating the reference beam, and a first reflecting surface...
5594564 Space light modulating apparatus having a length to width ratio of 30:1 and staggered drivers  
A space light modulating apparatus suitable for reconstruction of an electronic 1-dimensional hologram having no movable section. A predetermined display region is divided into a plurality of...
5592313 Methods and apparatus for making holograms  
A method and apparatus for making holograms includes a technique for exposing a film substrate or other light-sensitive medium to consecutive two-dimensional images, together representative of a...
5589957 Stereoscopic display apparatus using cylindrical screen  
A diffraction light modulated by a plane type phase distribution display device is deflected by an image formation optical system and is formed as an image onto a cylindrical screen surface and is...
5581378 Electro-optical holographic display  
A display device which is capable of producing a plurality of different views of an image simultaneously is provided. The display includes an array of semiconductor devices with an electro-optical...
5574579 Heads-up and heads-down displays employing holographic stereograms  
055745798 Heads-up and heads-down displays employing holographic stereograms are provided. The stereograms can be oriented perpendicular to the user's line of sight (the "90° case") or at angle to...
5555108 Holographic exposure prism  
A hologram exposure system that includes a holographic recording medium, a holographic prism adjacent the holographic recording medium for most efficiently diffracting light of a predetermined...
5543251 Method of recording plural holographic images into a holographic recording material by temporal interleaving  
Holographic images are constructed in a recording material in accordance with a temporal interleaving technique in which a first set of images is constructed for a predetermined first imaging time...
5537232 Reflection hologram multiple-color filter array formed by sequential exposure to a light source  
A multiple-color filter array (94) useful as part of a flat panel display system of either a projection (50) or direct view (70) type is constructed using reflection holography techniques. The...
5534386 Homogenizer formed using coherent light and a holographic diffuser  
A homogenizer for incident light including: a sheet of embossable material including a one micro-sculpted surface relief structure that (i) controls the direction in which light propagates and (ii)...
5526145 Color tuned holographic optical elements and methods of making and using the elements  
The present invention relates to color tuned holographic multicolor optical elements for use as multicolor transmission filters in liquid crystal displays and methods of making the elements. The...
5521724 Real-time automultiscopic 3D video display using holographic optical elements (HOEs)  
An inexpensive electronic display that presents 3D images by binocular parallax is disclosed. The effect produced is that of a real-time holographic stereogram. The pixels of a 2D display are...
5519651 High capacity holographic storage system  
A holographic storage assembly is provided which utilizes a large holographic storage media (36) disposed between two reflecting surfaces (40) and (42). An optics system (44) is disposed between...
5519517 Method and apparatus for holographically recording and reproducing images in a sequential manner  
A tape cartridge (12) is provided for storing holographic recordings in a longitudinal holographic storage media tape (14). The tape (14) is comprised of a thin holographic storage media such as a...
5515498 Optoelectronic computer graphics system and method  
An optoelectronic computer graphics system is disclosed wherein Optoelectronic Integrated Circuits (OEICs) and computer generated holograms are used to construct a final image by optically...
5515183 Real-time holography system  
A real-time holography system includes a matrix liquid crystal display, as used in a liquid-crystal television set, for producing a hologram. An image of an interference-fringe pattern caused by an...
5513022 Method and apparatus for direct transmission of an optical image  
A method and apparatus using a holographic storage medium for direct transmission of an optical image which can compensate for distortions occurring during transmission of the image. An apparatus...
5513020 Stereoscopic display apparatus use a holographic phase distribution formed from two-dimensional images  
Three-dimensional information for each object structure is used to provide a 2-dimensional plane to obtain a 2-dimensional image. Two-dimensional images by the projection seen from a plurality of...
5506701 Hologram color filter, liquid crystal display device using the same, and fabrication process of hologram color filter  
The present invention has for its object to spectrally diffract white light by a hologram for the illumination of a given position, thereby achieving some considerable improvement in the efficiency...
5499118 System for copying multiple holograms  
A hologram copying system that includes a first reconstruction beam, a second reconstruction beam that is incoherent with respect to the first reconstruction beam, a first master hologram...
5499116 Encoded hologram for producing a machine readable image and a human readable image  
An encoded hologram that produces a first image and a second image pursuant to playback illumination, wherein the first image is resolvable by human vision while the second image is not resolvable...
5497251 Combination specular and diffuse image CHMSL  
A hologram structure for use in a holographic center high mounted stoplight system for a vehicle. The hologram structure includes an illumination source for providing a reconstruction beam, a first...
5491569 High efficiency, broad bandwidth, volume holographic element for diffraction windows and method of manufacture  
A high efficiency, broad bandwidth, volume holographic element for diffraction windows. This holographic element is fabricated so that it can passively track and diffract solar radiation throughout...
5488494 Packaging system for holographic storage media  
A package for a holographic storage media (10) is provided that utilizes a slide tray (43) for containing a plurality of slides (102). Each of the slides (102) is comprised of an opaque casing...
5488493 Holographic CHMSL including a hologram assembly and a refractive element laminarly attached thereto for diverging zero order beam  
A holographic center high mounted stoplight system that includes a light source for providing a nearly collimated beam, an expanding lens responsive to the nearly collimated beam for providing a...
5486933 Monochromatic-light reproduction type hologram, and method and apparatus for its image reproduction  
A monochromatic-light reproduction type hologram having a hologram recorded area provided with interference fringes that form a hologram image, the hologram image being reproducible by irradiating...
5483364 Holographic steroscopic display method and apparatus using high and low sample point densities of feature and non-lecture portions of a holographic sterogram  
A stereoscopic display method whereby a hologram phase distribution is calculated and the calculated phase distribution is expressed and the expressed phase distribution is converted into a wave...
5483363 Security device  
A security device includes first and second diffractive structures contained within a surface relief structure. The structures are such that the device responds to illumination at a first, visible...
5481383 Color image reader  
A color image reading apparatus includes a multiple-line sensor in which a plurality of one-dimensional sensor arrays are arranged on a single substrate, a projection optical system for projecting...
5477348 Achromatic hologram optical system  
An achromatic hologram optical system for converting a wave front A into a wave front B. Two holograms (H 1 and H 2 ) are provided. The length of an optical path from an equiphase front of the...
5477347 Method and apparatus for isolating data storage regions in a thin holographic storage media  
A holographic storage media for storing digital data in the form of an interference grating is provided which includes a substrate (48) over which a perforated opaque structure (50) is disposed....
5475511 Methods of hologram construction using computer-processed objects  
Computer-processed or computer-generated objects can be used to build holograms whose images are close to or straddle the hologram surface. No preliminary or first hologram is required. The...
5473447 Heads-up and heads-down displays employing holographic stereograms  
Heads-up and heads-down displays employing holographic stereograms are provided. The stereograms can be oriented perpendicular to the user's line of sight (the "90° case") or at angle to the line...
5471881 Lenticular gauge face  
A refrigeration gauge face is modified by the use of two dimensional (2-D) lenticular animation display containing two different scale images. The two different scale images together provide...
5471328 Segmented image holographic disks  
A hologram structure including a plurality of holograms having substantially identical reconstruction characteristics disposed on a substrate for rotation about a rotation axis and containing...
5455692 Dual image CHMSLS  
A hologram structure for use in a holographic center high mounted stoplight system for a vehicle. The hologram structure includes first and second hologram layers laminarly secured to each other,...
5450218 Method for encoding and decoding digital data in holographic storage media  
A method for encoding and decoding digital data for storage in a holographic medium (12). Digital data, consisting of binary data (B i ) or grey scale data (A i ), is encoded in bit groups or digit...
5440669 Photorefractive systems and methods  
A new type of holographic recording in photorefractive crystals is disclosed, termed orthogonal data storage, in which counterpropagating, reflection mode holograms are wavelength multiplexed to...
5436740 Holographic stereogram  
A holographic stereogram which includes a plurality of element holograms and which reproduces a stereoscopic image by irradiation of coherent light, wherein each element hologram is loaded with a...
5430560 Three-dimensional image display device  
A three-dimensional image display device which comprises a light source; a hologram divided into a plurality of divided areas and exposed so that point images are formed at different positions in a...
5400155 Hologram information forming method  
A hologram surface to express a phase distribution, a visual field in which a solid image can be seen; and a stereoscopic display limit are set in a virtual space. A target to be stereoscopically...
5379133 Synthetic aperture based real time holographic imaging  
Apparatus, system, and method is described wherein a synthetic aperture based sequence of image samples are generated with respect to a subject to be stereoscopically imaged. These sample images...
5365354 Grin type diffuser based on volume holographic material  
A diffuser based on a phase volume holographic medium is recorded non-holographically with speckle which define non-discontinuous and smoothly varying change in the refractive index of the medium....
5361222 Binary phase only filter associative memory  
An associative memory apparatus having a 2f Fourier transform optical correlation configuration wherein the correlation spots produced in the correlation plane are projected back by a mirror...
Matches 251 - 300 out of 438 < 1 2 3 4 5 6 7 8 9 >