Foreign substance removing apparatus

Details Foreign substance removing apparatus Foreign substance removing apparatus

2007-03-06

2011-12-13

Shafer, Ricky (Department: 2872)

Optical: systems and elements

Protection from moisture or foreign particle

C359S291000, C310S328000

Reexamination Certificate

active

08075143

ABSTRACT:
A foreign substance removing apparatus that can provide the desired vibration amplitude to a light transmitting member, without using a large driving voltage. The foreign substance removing apparatus removes foreign substances adhered to a surface of an optical member disposed in a light ray incident path and includes a piezoelectric element fixed to a first plane of the optical member, a circular disk fixed to a second plane, opposite from the first plane, of the optical member so as to face the piezoelectric element, and a driving unit for applying an AC voltage to the piezoelectric element to cause the optical member to elastically vibrate in a direction perpendicular to the planes thereof, thereby removing the foreign substances adhered to the surface of the optical member.

REFERENCES:
patent: 3171683 (1965-03-01), Ludwig
patent: 4929072 (1990-05-01), Fujie et al.
patent: 5012593 (1991-05-01), Okada et al.
patent: 6910814 (2005-06-01), Kawai et al.
patent: 7006138 (2006-02-01), Kawai
patent: 7215372 (2007-05-01), Ito et al.
patent: 7483075 (2009-01-01), Kobayashi
patent: 2003/0202114 (2003-10-01), Takizawa et al.
patent: 2003/0214588 (2003-11-01), Takizawa et al.
patent: 2004/0047625 (2004-03-01), Ito et al.
patent: 2004/0090549 (2004-05-01), Takizawa et al.
patent: 2004/0169761 (2004-09-01), Kawai et al.
patent: 2004/0263669 (2004-12-01), Kobayashi
patent: 2002-204379 (2002-07-01), None
patent: 2003-280110 (2003-10-01), None
patent: 2003-333391 (2003-11-01), None
patent: 2003338966 (2003-11-01), None
patent: 2004-012474 (2004-01-01), None
patent: 2004023159 (2004-01-01), None
Office Action issued Sep. 6, 2011 for corresponding Japanese Patent Application No. 2006-0896061.

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