Patents
Patents for G03H 1 - Holographic processes or apparatus using light, infra-red, or ultra-violet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto (12,452)
12/1998
12/10/1998WO1998055964A1 Diffractive surface pattern
12/09/1998EP0883085A1 Diffractive surface pattern
12/09/1998EP0882252A1 Holographic high contrast viewing screen embedded in a liquid crystal display
12/09/1998CN1201534A Optically variable device (OVD) and method of recording OVD and OVD recorder
12/08/1998US5847851 Double-doped BaTiO3 crystal for holographic storage
12/03/1998WO1998053719A2 Method for impressing microstructures into metals or other hard materials, corresponding impression tool and coin
12/03/1998DE19722575A1 Verfahren zum Einprägen von Mikrostrukturen in Metalle oder andere Hartstoffe Method for embossing of microstructures in metals and other hard materials
12/02/1998EP0881843A2 Method and apparatus for transmitting or processing images.
12/02/1998EP0880716A1 Article with holographic and retroreflective features
12/02/1998EP0655162B1 Compositions of bacteriorhodopsin variants with increased memory time and their use
12/01/1998US5844701 System and method using linear translation to access data locations in a holographic memory
12/01/1998US5844700 Spatio-angular multiplexing geometry for volume holographic storage
12/01/1998US5843598 Subject plate for recording holograms, holograms-making method, and hologram-recorded article
11/1998
11/26/1998WO1998052952A1 Polyborate coinitiators for photopolymerization
11/25/1998EP0880112A2 Method for validation of a hologram and reader for carrying out this method
11/25/1998EP0880110A2 Method and apparatus for displaying computer generated holograms
11/17/1998US5838650 Image quality compensation method and apparatus for holographic data storage system
11/17/1998US5838467 Method for processing information stored in a holographic system
11/17/1998US5838466 Optical structure
11/11/1998EP0876662A1 Manufacture of optical data storage disc
11/10/1998US5835470 System and method for steering focal plane data using cylindrical coordinates to access data locations in a holographic memory
11/10/1998US5835245 Holographic method and materials to detect and prevent forgery in identity cards
11/10/1998CA2128575C Segmented image holographic disks
11/04/1998CN1197942A Two-dimensional composite stereo visual-checkup hologram card and its making method
11/04/1998CN1197941A Color reflection hologram making method using potassium dichromate gelatine
11/03/1998CA2101369C Space light modulating apparatus
10/1998
10/28/1998EP0778801B1 Dot-matrix image and thermal transfer film for producing the same
10/27/1998CA2068984C Multiple layer holograms
10/22/1998WO1998021629A3 In-line holographic mask for micromachining
10/21/1998EP0871574A1 Optical information carrier
10/20/1998US5825514 Master hologram for the production of copy-proof holograms
10/14/1998EP0870655A1 Holographic marking of transparent surfaces of automobile lamps and headlights
10/14/1998EP0870071A1 Enhancement of optically variable images
10/13/1998US5822092 System for making a hologram of an image by manipulating object beam characteristics to reflect image data
10/13/1998US5822090 Utilization of ferroelectric domain screening for high capacity holographic memory
10/13/1998US5822089 Grazing incidence holograms and system and method for producing the same
10/13/1998US5822088 Hologram display item
10/07/1998EP0869408A1 Volume hologram laminate and label for preparing volume hologram laminate
10/06/1998US5815936 Detachable hologram assembly and windage/elevation adjuster for a compact holographic sight
09/1998
09/29/1998US5815292 Low cost diffraction images for high security application
09/24/1998WO1998041905A1 Optical display
09/24/1998WO1998041904A1 A method of producing embosse, light-diffracting patterns
09/24/1998CA2284877A1 Optical display apparatus
09/24/1998CA2283766A1 A method of producing embossed, light-diffracting patterns
09/23/1998EP0865618A1 Holographic optical device and method of manufacture
09/22/1998US5812292 Optical correlator using optical delay loops
09/22/1998US5812287 Holograms having a standard reference color
09/22/1998US5811775 Optical data element including a diffraction zone with a multiplicity of diffraction gratings
09/22/1998US5810957 Method for forming holographic foil
09/22/1998CA2135940C Combination specular and diffuse image chmsl
09/17/1998WO1998035264A3 Holographic device for formation of light beams with predetermined spectral compositions and projector of video images containing such a device
09/16/1998EP0864947A2 Image reproducing method and apparatus
09/16/1998EP0864157A1 Two-step gated holographic recording in photorefractive materials using cw lasers
09/16/1998CN1193390A Position feedback system for volume holographic storage media
09/16/1998CN1193299A Anti-fake document with transparent writable hologram
09/15/1998US5808776 Process for realization of an optically variable image
09/15/1998US5808758 Data carrier with an optically variable element
09/15/1998US5807456 Method for producing metallic planar elements on substrates
09/11/1998WO1998039685A1 Energy-depleted radiation apparatus and method
09/08/1998US5805316 Twin-image elimination apparatus and method
09/03/1998WO1998038546A1 Chromatically-adjusted display element with reflective holographic diffusor
09/03/1998WO1998038536A1 Transmission holographic diffuser made and used to effect lateral color constancy in rear screen projection display systems
09/03/1998CA2252462A1 Transmission holographic diffuser made and used to effect lateral color constancy in rear screen projection display systems
09/02/1998EP0862096A2 Method and system for producing computer generated holograms realizing real time holographic video production and display
09/01/1998US5801857 Data carrier having an optically variable element and methods for producing it
08/1998
08/26/1998EP0632767B1 Holographic security device
08/25/1998US5798864 Projection type image display apparatus
08/25/1998US5798850 Method of and apparatus for duplicating hologram and duplicate hologram
08/25/1998US5797492 Information storage medium packaging body
08/25/1998CA2058802C System and technique for making holographic projection screens
08/20/1998DE19704741A1 Holografischer Bildschirm mit integrierter Speckleunterdrückung Holographic display screen with integrated Speckleunterdrückung
08/19/1998EP0858622A1 Optically variable device (ovd) and a method of recording ovd and an ovd recorder
08/19/1998EP0748459A4 Difraction surfaces and methods for the manufacture thereof
08/18/1998US5796500 Methods and apparatus for making holograms
08/18/1998US5796499 Transmission holographic diffuser made and used to effect lateral color constancy in rear screen projection display systems
08/18/1998US5796498 Apparatus for imaging an object obscured by a diffusing medium
08/18/1998US5796096 Fabrication and applications of long-lifetime, holographic gratings in photorefractive materials
08/18/1998US5795681 Stabilization of holograms formed in gelatin
08/13/1998WO1998035264A2 Holographic device for formation of light beams with predetermined spectral compositions and projector of video images containing such a device
08/13/1998WO1998035246A1 Holographic display screen with integrated speckle suppression
08/12/1998CN1190192A Polarized light encrypted holographic laser anti-fake trade mark and tis production method
08/11/1998US5793504 Hybrid angular/spatial holographic multiplexer
08/11/1998US5793503 Methods of hologram construction using computer-processed objects
08/11/1998CA2027462C Method of manufacturing display having diffraction grating patterns
08/06/1998WO1998034135A1 Laser back-projection screen
08/06/1998WO1998033761A1 Non-volatile phenylglyoxalic esters
08/06/1998WO1998033648A1 Manufacture of security tapes and security threads
08/06/1998DE19703592A1 Bildschirm für Laserrückprojektion Screen for rear projection laser
08/06/1998CA2279339A1 Manufacture of security tapes and security threads
08/06/1998CA2275667A1 Non-volatile phenylglyoxalic esters
08/05/1998EP0856768A2 Broadband reflective display, and methods of forming the same
08/05/1998EP0856766A2 Holographically formed reflective display, liquid crystal display and projection system and methods of forming the same
08/05/1998EP0856765A1 Reflective-type liquid crystal display and methods of forming the same
08/04/1998US5790284 Display apparatus and displaying method for image display producing stereoscopic effect
07/1998
07/30/1998WO1998032605A1 Hologram manufacturing process and method for efficiently providing a multi-holographic optical element substrate unit
07/22/1998EP0853774A1 Holographic medium and process
07/21/1998US5784200 Difraction grating recording medium, and method and apparatus for preparing the same
07/21/1998US5784181 Illumination device for illuminating a display device
07/21/1998US5783017 Applying a hologram to a substrate
07/21/1998CA2067297C Protected photosensitive recording films