Television – Camera – system and detail – Optics
Reexamination Certificate
2005-03-02
2009-08-11
Vu, Ngoc-Yen T (Department: 2622)
Television
Camera, system and detail
Optics
C348S374000, C349S128000, C359S253000
Reexamination Certificate
active
07573524
ABSTRACT:
A liquid crystal light control element, a lens barrel, and an imaging device, which are so designed as to adequately control the amount of light led to the imaging element at the time of photographing in a bright ambience are provided.The lens barrel includes an optical system, a liquid crystal light control element, and an imaging element. The object image captured by the optical system reaches the imaging element through the liquid crystal light control element, which is composed of a first liquid crystal light control unit, a second liquid crystal light control unit, and a first and a second liquid crystal layers, which are placed on top of the other in their thickness direction.
REFERENCES:
patent: 4431288 (1984-02-01), Iwata et al.
patent: 5090794 (1992-02-01), Hatano et al.
patent: 6246832 (2001-06-01), Terada
patent: 6603526 (2003-08-01), Kim et al.
patent: 6791657 (2004-09-01), Yanagida et al.
patent: 7110155 (2006-09-01), Nito et al.
patent: 7245325 (2007-07-01), Yamaguchi
patent: 7339649 (2008-03-01), Imai et al.
patent: 7483116 (2009-01-01), Udaka
patent: 2007/0263150 (2007-11-01), Ohishi et al.
patent: 55-142314 (1980-11-01), None
patent: 58-147711 (1983-09-01), None
patent: 58-154819 (1983-09-01), None
patent: 60-241031 (1985-11-01), None
patent: 63-019626 (1988-01-01), None
patent: 63-049736 (1988-03-01), None
patent: 01-239528 (1989-09-01), None
patent: 02-091607 (1990-03-01), None
patent: 07-027983 (1995-01-01), None
patent: 07-072461 (1995-03-01), None
patent: 09-197429 (1997-07-01), None
patent: 2002082358 (2002-03-01), None
Office Action issued by the Japanese Patent Office on Mar. 29, 2007 for corresponding Japanese Application No. 01-239528.
Ando Masaki
Tanaka Kazuhiro
Tsuji Takumi
Udaka Toru
K&L Gates LLP
Sony Corporation
Vu Ngoc-Yen T
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