Optical device

Details Optical device Optical device

2006-02-23

2009-06-09

Perkey, W. B. (Department: 2862)

Photography

Camera detail

Shutter

C396S506000, C359S228000, C359S665000

Reexamination Certificate

active

07544002

ABSTRACT:
An optical device includes: a sealed container having edge walls facing each other in a thickness direction of the container and a side wall connecting both of the edge walls; a first liquid with polarity or electrical conductivity and sealed within the container; a second liquid that is sealed within the container and does not mix with the first liquid; and a voltage applying unit for applying a voltage across the first liquid. The first liquid and the second liquid have equal specific gravity, and transmissivity of the first liquid is lower than the transmissivity of the second liquid. An interface between the first liquid and the second liquid changes shape in response to a voltage applied by the voltage applying unit. A light transmission path that passes through the edge walls and extends in a direction of the thickness of the container is formed.

REFERENCES:
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patent: 6943841 (2005-09-01), Miyake et al.
patent: 7388705 (2008-06-01), Onuki et al.
patent: 2001/0017985 (2001-08-01), Tsuboi et al.
patent: 2005/0041132 (2005-02-01), Juen et al.
patent: 2001-228307 (2001-08-01), None
patent: 2002-055286 (2002-02-01), None
patent: 2002-169005 (2002-06-01), None
patent: 2003-158684 (2003-05-01), None
patent: WO-2004/027489 (2004-04-01), None
EPO Search Report mailed on Jul. 21, 2006.
European Patent Office Communication pursuant to Article 94(3) issued on Jul. 17, 2008 for corresponding European Application No. 06 110 849.4-2217.
Japanese Office Action for application No. 2005-063324 dated Jan. 28, 2009.

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