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Match Document Document Title
7364300 Theta-parallax-only (TPO) displays  
A 3-D display may comprise a rotating optical diffuser for displaying 3-D parallax images in specific substantially unidirectional viewing zones as the rotating optical diffuser rotates; and a...
7218597 Holographic recording method  
In the disclosed holographic recording method, when multiplex recording of data of a plurality of pages is performed, exposure time of a hologram of a final page to be recorded is fixed...
7187481 System and method for providing gain and thresholding to a holographic data parallel recording and replication system incorporating independent angular address assignment  
System and method for providing gain and thresholding to a holographic data parallel recording and replication system incorporating independent angular address assignment. A plurality of...
7099058 Hologram preparing method  
In the method for producing holograms, a plurality of images displayed on a spatial optical modulating element 6 is used as the object light. Through a lens array 7 composed of a plurality of...
7088488 Spatial light modulator device with diffusive element  
The invention is directed to a spatial light modulator device that can improve holographic data recording systems, and various methods and systems incorporating the device. The spatial light...
7029128 Table type display device  
A table type display device, in which a high resolution display with an unremarkable connection is realized at the time of large screen display by using a screen with a composition having few...
6999071 Method and apparatus for displaying 3d images  
The invention relates to a method for displaying three-dimensional images. In the method light beams (L e ) are associated to several different screen points (P) of a screen ( 20 ). The light beams...
6982817 Method, device and laser system for producing screen holograms, and screen hologram  
In a method of producing video screen holograms, a real video screen is illuminated by means of a narrowband light for producing a hologram of the real video screen. A plurality of individual...
6980337 Apparatus and method for recording digital data on a holographic storage system  
A holographic apparatus includes a mask for modulating a signal beam to generate a modulated signal beam; a conical prism, which has a cone portion and a base portion, for refracting a reference...
6975443 Multi-beam pattern generator  
A scanning pattern generator and a method for microlithographic multi-beam writing of high precision patterns on a photosensitive substrate ( 11 ), the system comprising a light source ( 1 ),...
6914918 Optical device, laser beam source, laser apparatus and method of producing optical device  
After forming domain inverted layers 3 in an LiTaO 3 substrate 1 , an optical waveguide is formed. By performing low-temperature annealing for the optical wavelength conversion element thus...
6912074 Method of producing a big size holographic projection screen for displaying a three-dimensional color images without color deterioration  
A method of producing a big size holographic screen for projection of the stereoscopic or multiview 3-dimensional color images is proposed, where a narrow and elongate slit-shaped diffuser is...
6903851 Method for producing light scattering elements  
The present invention relates to a method for producing light-scattering elements by holographic illumination of a layer ( 10 ) of a photo-sensitive material on a support plate ( 1 ) and subsequent...
6894815 Reference beam absorbers-blockers  
In accordance with teachings of the present invention, a device accomplishes the task of reducing or preventing reflections of the reference beam off a diffuser from striking the holographic...
6870651 Apparatus and method for generating a dynamic image  
Apparatus for generating a dynamic image includes a laser light source for generating a coherent beam of light; optics for separating the light beam into a reference beam and an object beam; a...
6852452 Method of fabricating hologram screen and hologram imaging apparatus  
A method of fabricating a hologram screen having a large visual range and a hologram imaging apparatus used for the particular method of fabricating the hologram screen are disclosed. A plurality...
6836348 Image display device and holographic screen  
An image display device comprising a holographic screen and an image projection device for projecting an image beam onto the holographic screen at an upward or downward angle is provided, wherein a...
6731991 System for projecting light on a work surface to produce an image for tracing  
A method and system of projecting light on a planar surface to produce an image for tracing is disclosed. The system includes a projector that has a light source and a signal conditioner that is...
6721075 Holographic optical element  
A holographic optical element comprising at least two sets of regions, the regions of each set being different from the regions of the other set(s) and being interleaved or overlapping with the...
6692129 Display apparatus including RGB color combiner and 1D light valve relay including schlieren filter  
The optical system includes a plurality of light modulators, one or more combining filters, and an optical relay system including a filter. Each light modulator modulates a corresponding incident...
6639699 Optical system for recording or replicating hologram  
The invention provides a hologram recording or replicating optical system wherein a misalignment-with-time of the center of a laser generated beam is automatically corrected so that the color...
6602596 Light diffusion sheet  
There is provided a light diffusion sheet comprising a light diffusion layer formed on a transparent substrate and containing a binder resin and resin particles that impart an uneven surface,...
6590680 Holographic optical element  
A holographic optical element comprising at least two sets of regions, the regions of each set being different from the regions of the other set(s) and being interleaved or overlapping with the...
6516008 Laser pulse slicer and dual wavelength converter for chemical sensing  
A wavelength conversion system and method. The inventive system is adapted to receive a beam of input energy having a first spiked portion with a first wavelength and a first spatial and/or...
6486982 System for making a hologram of an image by manipulating object beam characteristics to reflect image data  
A system for converting an image into a hologram formed from diffraction gratings includes obtaining image data for each pixel in an image to be converted, putting it into digital form and using...
6462869 Projection screen and system for large-surface images  
A projection screen ( 30 ) for representation of images by back-projection comprises a plurality of holographic-optical elements ( 10 ) arranged in one plane. The holographic-optical elements are...
6431731 Laser device and method for producing diffuse illumination  
A laser device which directs one or more wavelengths of pulsed diffuse laser light at a target to produce a diffuse laser illumination, and a method of illuminating and viewing a target with the...
6330086 Digital holography device  
A digital holography device, applicable for example to the 3D mapping of objects, is used to determine the complex amplitude of a signal wave coming from an object illuminated by a known...
6322932 Holographic process and media therefor  
High storage densities using a holographic system are achievable using a stratified medium while maintaining a relatively high selectivity upon reconstruction of the stored images. Such combination...
6288805 Holographic projection screen and method of production  
A holographic projection screen for large screen projection and back projection with a liquid crystal projector. The screen includes at least one layer made of a photosensitive material in which at...
6256123 Projection liquid crystal display apparatus, process for producing holographic optical element for use in the display apparatus and holographic optical element produced by the method  
A projection liquid crystal display apparatus has a light source for emitting white light and a liquid crystal display unit, between which a holographic optical element serving as the color...
6233071 Holographic optical element  
A holographic optical element comprising at least two sets of regions, the regions of each set being different from the regions of the other set(s) and being interleaved or overlapping with the...
6226110 Method and apparatus for holographically recording an essentially periodic pattern  
The present invention relates to a method and an apparatus for holographically recording periodic or quasi-periodic features of a mask in a holographic recording layer. In holographic lithography...
6222755 Solid state holographic memory  
A method and a compact apparatus to read shift-multiplexed holograms on a storage medium without the need for any lenses, and without the need for moving the storage medium. The shift-multiplexed...
6211977 Method of producing a holographic projection screen for displaying a three-dimensional color images  
A method of producing a holographic screen for projection of the three-dimensional color images is proposed, where a narrow and elongate slit-shaped diffuser is recorded on the hologram as an...
6201565 Method and apparatus for displaying three-dimensional images  
The method and apparatus of the invention pertains to a simultaneously modulated light beam carrying the information of a three-dimensional image is directed to pixels (image points) defining a...
6198555 Manufacturing method for a hologram and a related exposure apparatus  
A coherent beam is converted into a light flux having an expanded width at a predetermined position closer to a photosensitive element. Part of the expanded light flux is irradiated directly on the...
6198554 Method for producing a hologram and a display device using the same  
A method for producing a hologram recording an interference fringe formed by an object light and a reference light on a photosensitive dry plate, and the object light either having diffusing and...
6185018 Holographic stereogram printing system  
A holographic stereogram printing apparatus that is able to formulae a holographic stereogram superior in light utilization efficiency and in picture uniformity. The holographic stereogram printing...
6166389 Apparatus having a light source and a sol-gel monolithic diffuser  
An apparatus for projecting light on to a predetermined area includes a light source and a transparent element disposed adjacent the light source where in the transparent element is made from a...
6163390 Method for producing a hologram and a display device using the same  
A method for producing a hologram recording an interference fringe formed by an object light and a reference light on a photosensitive dry plate, and the object light either having diffusing and...
6157474 Holographic optical element  
A display device with a holographic diffuser which has at least first and second adjacent sets of holographic regions which overlap each other and wherein the first and second holographic regions...
6141123 Hologram and process for producing hologram  
There is provided a hologram with excellent heat resistance. The hologram comprises a hologram film (10) in which a diffraction grating has been recorded, a substrate (11) situated on one side of...
6111670 Hologram device and method for producing the same  
A hologram of an increased size using a single color laser, capable of executing a full color regeneration in a desired view angle and a method for producing the hologram. A plurality of...
6097514 Hologram replicating method, and volume hologram  
The invention relates to a method for replicating a volume hologram having an image of a scattering object recorded therein according to a hologram replicating technique, wherein the diffraction 13...
6055174 Solid state holographic memory  
A method and a compact apparatus to read shift-multiplexed holograms on a storage medium without the need for any lenses, and without the need for moving the storage medium. The shift-multiplexed...
6031643 Method for holographic storage  
The present invention is a method for optical data storage which enhances the contrast between ON and OFF pixels. The method comprises writing a two-dimensional image comprising a plurality of...
5949559 Method and apparatus for creating holographic stereogram  
A method and an apparatus for creating a holographic stereogram are provided for canceling noises localized to infinity and offering a high-quality hologram. The creating method is executed to...
5949557 Total internal reflection holography method and apparatus for lithography on 3-D spherical shaped integrated circuit  
A photolithograhic method and apparatus for exposure of a spherical shaped semiconductor substrate according to a mask pattern of a primary spherical object mask in the manufacture of a spherical...
5946115 Hologram memory device  
Fast speed hologram memory device, including a first holographic optical element array for directing a reference beam to a desired hologram memory cell directly and a second holographic optical...
Matches 1 - 50 out of 169 1 2 3 4 >