Optical: systems and elements – Deflection using a moving element – Using a periodically moving element
Reexamination Certificate
2011-08-23
2011-08-23
Cherry, Euncha P (Department: 2872)
Optical: systems and elements
Deflection using a moving element
Using a periodically moving element
Reexamination Certificate
active
08004735
ABSTRACT:
A polygon scanner including a polygon mirror, a bearing, a polygon motor, and a scanner board is mounted in an optical housing. A scanner-unit attachment portion to which the polygon scanner is attached is formed as a convex portion protruded from a bottom plate of the optical housing such that at least a planar shape of the polygon mirror is surrounded by the convex portion. The scanner board makes a tight contact with an upper surface of the convex portion in direct contact with each other, so that a bottom of the polygon scanner is covered by the convex portion and the bottom plate of the optical housing in a sealed manner.
REFERENCES:
patent: 7379086 (2008-05-01), Nakamura
patent: 7420723 (2008-09-01), Itami et al.
patent: 2001/0001251 (2001-05-01), Tachibe et al.
patent: 2004/0246453 (2004-12-01), Nakamura
patent: 08-002000 (1996-01-01), None
patent: 2774444 (1998-04-01), None
patent: 2001-337291 (2001-07-01), None
patent: 2001-296495 (2001-10-01), None
patent: 2002-107649 (2002-04-01), None
patent: 2006-035570 (2006-02-01), None
Abstract of JP 07-306373 published on Nov. 21, 1995.
European Search Report dated Aug. 13, 2009 for corresponding European Application No. 09251467.8-2117.
Endo Makoto
Murakami Tomoyuki
Tanaka Takashi
Cherry Euncha P
Harness & Dickey & Pierce P.L.C.
Ricoh Company Limited
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