Liquid crystal cells – elements and systems – Liquid crystal optical element – Liquid crystal diffraction element
Reexamination Certificate
2006-03-28
2006-03-28
Parker, Kenneth (Department: 2871)
Liquid crystal cells, elements and systems
Liquid crystal optical element
Liquid crystal diffraction element
C369S112020
Reexamination Certificate
active
07019812
ABSTRACT:
The present invention provides a compact liquid crystal optical element for optical modulation and a compact optical device. A liquid crystal optical element for optical modulation is prepared by connecting two transparent substrates, each formed with a transparent electrode and an orientation film, with a sealing member, leaving a clearance between the two transparent substrates. On at least one surface of at least one of these transparent substrates, a diaphragm is formed using a shielding member. With this arrangement, it is possible to provide a more compact liquid crystal optical element than has been conventionally available. At the same time, it is possible to substantially reduce the occurrence of noise. Therefore, it is possible to provide a liquid crystal optical element and an optical device having excellent performance.
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Hashimoto Nobuyuki
Sato Shin-ya
Chung David Y.
Citizen Watch Co. Ltd.
Finnegan Henderson Farabow Garrett & Dunner L.L.P.
Parker Kenneth
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