Matches 401 - 438 out of 438 < 1 2 3 4 5 6 7 8 9
Match Document Document Title
3838403 STACKED PHOTOPLASTIC DATA STORAGE SYSTEM  
An electro-optical data storage system and method of operation thereof comprising the means and steps, respectively, for selectively recording and reading data stored in any of a plurality of...
3834787 METHOD AND APPARATUS FOR MAKING HOLOGRAPHY MEMORY  
A holography memory, wherein a number of holograms are formed on a predetermined hologram recording medium by the use of reference light beam illuminated at a predetermined angle and an object...
3829838 COMPUTER-CONTROLLED THREE-DIMENSIONAL PATTERN GENERATOR  
Computing and control logic generates control signals in response to input data specifying the coordinate positions of a plurality of points of a three-dimensional pattern. The control signals...
3822087 SYSTEM OF SELECTION AND DISPLAY OF GRAPHICAL DATA BY HOLOGRAPHY  
System for recording graphical data in the form of holograms on a plurality of hologram carriers, each hologram carrier storing a group of holograms, and for reading selected ones of these...
3816243 HOLOGRAM RECONSTRUCTION SYSTEM  
A hologram reconstruction system employs a hologram with a color picture recorded thereon, on which a collimated beam generated from a laser source is illuminated and a lens converges transmitted...
3813685 HOLOGRAPHIC COLOR TELEVISION RECORD SYSTEM  
A method and apparatus for constructing and replaying an optical holographic record containing a plurality of very small holograms, each of which contains color information independent of the other...
3807828 HOLOGRAPHIC SYSTEMS  
This invention is concerned with methods and apparatus for recording multiple exposure holograms on a film record and displaying reconstructed images of the separately recorded subjects. Means are...
3802758 DUAL HOLOGRAM PLATE HOLDER  
Apparatus for holding and precisely positioning the two holograms used in dual hologram interferometry. Each hologram can be adjusted in position relative to the other and relative to the reference...
3798618 HOLOGRAPHY MEMORY APPARATUS USING A SINGLE QUARTER-WAVE SPACIAL MODULATOR  
A holography memory apparatus has an object light beam converted into circularly polarized light by a quarter-wave plate. The circularly polarized light beam is caused to impinge upon a digital...
3790701 SYSTEM FOR RECORDING AND PLAYING BACK COLOR ENCODED HOLOGRAMS  
A hologram record is made containing information representative of the color and brightness of a scene. A replica of the hologram is played back in a system including a laser imaging unit for...
3765741 METHOD OF FORMING THREE-DIMENSIONAL IMAGES USING MULTI-IMAGE HOLOGRAM  
A method of forming a three-dimensional image, comprising the general steps of taking a picture of an object illuminated by incoherent light through a lens array comprising a small number of...
3764979 HOLOGRAPHIC SYSTEM FOR SUBJECT RECOGNITION PERMITTING CONVERSION OF A PATTERN INTO A MACHINE-READABLE FORM  
A holographic device for producing output image patterns in response to different input pattern wavefronts is described. A novel hologram is formed by the interference of a first pattern of...
3763311 REDUCTION OF NON-LINEAR SPATIAL DISTORTION IN HOLOGRAPHIC SYSTEM EMPLOYING DIFFERENT WAVELENGTHS FOR RECORDING AND PLAYBACK  
In the recording of a Fraunhofer hologram, with any given fixed angle between the object information and reference beams, spatial non-linear distortion is minimized by properly choosing the...
3758187 METHOD AND APPARATUS FOR RECORDING INTELLIGENCE ON A SHEET MATERIAL  
A method and apparatus for recording intelligence on a moving sheet such as a light sensitive strip. The data is modulated into a coherent light reference or a signal beam of a holographic...
3753249 INFORMATION SYSTEMS USING ARRAYS OF MULTIPLE SPOT PATTERNS  
The systems of this invention involve the storage of information on a record medium in the form of patterns of spots arrayed along one or more tracks, the patterns are spaced apart a distance which...
3739093 DEVICE FOR REPRODUCING INFORMATION RECORDED IN A HOLOGRAM  
A device for reproducing picture information and sound information which are recorded in a hologram in the overlapped manner, wherein the reproduction is performed while the hologram is...
3737878 HOLOGRAPHIC READ/WRITE STORAGE SYSTEM  
The invention relates to a holographic mass data storage system in which coded representations of data are recorded on the photosensitive surface of a drum sequentially under control of mechanical...
3735374 HOLOGRAM IDENTIFICATION SYSTEM  
An identification arrangement comprises light sources and photo-detectors arranged in accordance with a predetermined correspondence code. An appropriate key hologram produces, in respect of each...
3670305 LENSLESS OPTICAL RECOGNITION SYSTEM  
A lensless recognition system including a hologram having interference patterns therein corresponding to known characters. The interference patterns are formed by a character beam which passes...
3657473 HOLOGRAPHIC IMAGE RECORDING AND REPRODUCING SYSTEM  
A holographic image recording and reproducing system for use with a conventional television receiver. A laser beam which is intensity modulated in accordance with video information is projected...
3635538 STACKED HOLOGRAM APPARATUS  
A data storage device including a stack of birefringent crystalline holographic plates serially disposed in the path of a playback beam and further including means cooperating with the holographic...
3620589 INTERFEROMETRY OF TRANSPARENT OBJECTS  
A method and apparatus have been devised for separating information related to the sums of the principal stresses in an object from information related to the differences between the principal...
3602887 PATTERN CLASSIFICATION METHOD AND APPARATUS  
The apparatus for practicing the method of classifying patterns is a character recognition system. An optical representation of a function of an unknown character is obtained by applying...
3600097 HOLOGRAMS HAVING INCREASED PHASE SENSITIVITY  
A holographic interferogram which permits viewing of the object at higher orders of diffraction for increasing the phase sensitivity. A double exposure holographic technique is used whereby a first...
3600096 HOLOGRAPHIC INTERFEROGRAMS WITH INCREASED LIGHT INTENSITY  
A holographic interferogram which permits viewing of an object at very high orders of diffraction for increasing the phase sensitivity as well as the light intensity. A double-exposure holographic...
3591252 LARGE ARRAY SYNTHESIZING  
An array of similar images may be synthesized by holographic reconstruction techniques. To produce a large array of similar images, a hologram is constructed that contains the spatial frequency...
3580656 HOLOGRAM APPARATUS AND METHOD  
An information processing system is presented for information storage and retrieval with a color center crystal wherein the information to be stored is generated by electrically modulating a light...
3566137 HOLOGRAPHIC CHARACTER READER  
Apparatus for recognizing serially viewed characters of a known font of type is achieved by imaging the characters onto a substrate bearing an electrically charged liquid photoconductor medium...
3553460 REALIZATION OF COMBINATORIAL FUNCTIONS BY UTILIZING OPTICAL HOLOGRAPHY AND PHASE MODULATION BY INPUT INFORMATION  
A method of processing information by combining regions of a radiant energy beam which have been modulated according to the information. The combination is performed according to a pattern of phase...
3522979 COMBINATION OF HOLOGRAMS HAVING AN IMPROVED DIFFRACTED IMAGE AND A METHOD FOR MAKING THE SAME  
3519324 HOLOGRAMS FOR RECONSTRUCTION OF OBJECTS OF EQUAL INTENSITY  
3504609 OPTICAL DATA SELECTION AND DISPLAY  
3492652 OPTICAL ASSOCIATIVE MEMORY SYSTEM  
3442566 COLOR HOLOGRAPHY  
3560072 Title is not available  
3560071 Title is not available  
3556629 Title is not available  
3552858 Title is not available  
Matches 401 - 438 out of 438 < 1 2 3 4 5 6 7 8 9