Optical: systems and elements – Holographic system or element – Using a hologram as an optical element
Patent
1992-10-30
1994-06-14
Sikes, William L.
Optical: systems and elements
Holographic system or element
Using a hologram as an optical element
359 58, 359 59, G02F 1133
Patent
active
053215362
ABSTRACT:
A liquid crystal operation device including a pair of substrates opposed to each other; a liquid crystal layer interposed between the substrates; and a plurality of first electrodes and a plurality of second electrodes which are at least partially opposed to each other with an insulating film interposed therebetween. The first electrodes are provided on one of the substrates. The liquid crystal operation device further includes a third electrode provided on a surface of the other substrate to be opposed to the second electrodes; and a photosensitive section bridging the second electrodes and a signal line provided in the vicinity of the second electrodes. The photosensitive section is formed of a photoconductive material. A first capacitance is generated between the first electrodes and the second electrodes, a second capacitance is generated between the second electrodes and the third electrode. The second electrodes are controllably connected to and separated from the signal line by the photosensitive section. An image processing system includes such a liquid crystal operation device; and a spatial light modulator for optically transferring an image to the liquid crystal operation device.
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Ishii Yutaka
Yamamoto Yoshitaka
Conlin David G.
Mai Huy
O'Connell Robert F.
Sharp Kabushiki Kaisha
Sikes William L.
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