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Liquid crystal display
Accordingly, it is a first object of the present invention to provide a liquid crystal display which may basically exhibit positive mode images and simultaneously ...
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Polymer dispersion type liquid crystal display element and reflection type liquid crystal display device
OF THE PREFERRED EMBODIMENTS Now referring to the drawing, the preferred embodiments of the invention are described below. EXAMPLE 1 An embodiment of the invention is ...
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Reflective image-providing display viewed with holographically diffused ambient light
OF THE INVENTIVE SUBJECT MATTER The present invention encompasses a display viewable by reflection, the display comprising an image-providing display element and a ...
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Self calibrating scanner with single or multiple detector arrays and single or multiple optical systems
Accordingly, it is a general object of the present invention to provide a system for image scanning and digitizing using a reseau for accuracy, but without obscuring the ...
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Holographic verification system with indexed memory
The present invention provides a holographic data verification system which is capable of simultaneously verifying numbers, as the term is defined above, belonging to ...
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Manufacture of security tapes and security threads
What is claimed is: 1. A method of manufacturing a laminate structure for use in a security thread or tape comprises: i) providing a first structure having a flexible ...
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Hydraulic transfer method and device and hydraulic-transfer article
What is claimed is: 1. A liquid pressure transfer method for transferring a print pattern on a transfer film floating along a surface of a liquid within a transfer bath ...
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Use of fresnel zone plates for material processing
It is an advantage of the present invention to provide a system which uses diffractive optics techniques to form an arbitrary pattern for machining and material ...
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Ambient turn-on suppression hologram
These and other objects of the invention are provided by a hologram which includes a light source, an image hologram member for forming an image when illuminated by the ...
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Method of producing switchable holograms
A method of producing a switchable hologram generally comprises providing a substrate composed of a liquid crystal material and having two generally opposed surfaces and ...
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