Matches 201 - 217 out of 217 < 1 2 3 4 5
Match Document Document Title
3942048 Piezoelectrically driven optical grating assemblies  
An optical grating assembly comprises a piezo-electric substrate which supports on two opposite faces thereof respective metallic layers. One of these faces of the substrate also carries a grating...
3909114 Variable spherulitic diffraction  
Variable diffraction of light is provided by utilization of a novel, stable spherulitic texture of a liquid crystalline composition. Light directed upon an array of spherulites in the liquid...
3861784 PROGRAMMABLE DIFFRACTION GRATING  
An electrically alterable apparatus and method of operation thereof that permits the optical processing of an image is disclosed. The apparatus includes an array of optical cells comprised of a...
3813142 ELECTRO-OPTIC VARIABLE PHASE DIFFRACTION GRATING AND MODULATOR  
An electro-optic variable phase diffraction device is described for varying a phase diffraction grating and modulating an optical wave. A layer of electro-optic material whose index of refraction...
3631414 RAPID ACCESS DATA STORAGE AND RETRIEVAL SYSTEM  
Superimposed angularly oriented diffraction gratings are recorded on sheets of magnetic film to provide high-density data storage on each sheet, each recorded grating representing a particular...
3587063 SYSTEM FOR RETRIEVING DIGITAL INFORMATION  
The high resolution of photographic film is used for information recording and retrieval by forming an image which can be accurately read out in spite of small pieces of dirt or scratches on the...
3545843 MAGNETO-OPTICAL DISPLAY SYSTEM  
3508215 MAGNETIC THIN FILM MEMORY APPARATUS  
3392400 System for recording digital information  
3385991 Cathode ray tube with light-modulated fluid filling space between rotatable disc and output window  
3347614 Magnetic film display device  
3345462 Light valve projection apparatus  
3335413 Wide band optical recording and narrow band reproduction on a thermo-plastic medium  
3330908 Deformable medium projection apparatus utilizing novel optical system comprising lens arrays employed in conjunction with light masks  
3312955 System for recording and retrieving digital information  
3272917 First and second order diffraction color projection system  
0755983 Title is not available  
Matches 201 - 217 out of 217 < 1 2 3 4 5