Invention Grant
- Patent Title: Optical scanning apparatus and image forming apparatus
- Patent Title (中): 光学扫描装置和图像形成装置
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Application No.: US12328224Application Date: 2008-12-04
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Publication No.: US08077368B2Publication Date: 2011-12-13
- Inventor: Naoki Miyatake
- Applicant: Naoki Miyatake
- Applicant Address: JP Tokyo
- Assignee: Ricoh Company, Limited
- Current Assignee: Ricoh Company, Limited
- Current Assignee Address: JP Tokyo
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2007-338026 20071227
- Main IPC: G02B26/08
- IPC: G02B26/08

Abstract:
Synchronization detecting units detect synchronization signals by receiving the light beam deflected to one side of a light source on one side of an optical deflector and receiving the light beam deflected to an opposite side of an optical axis of a scanning optical system from the light source on the other side of the optical deflector. Photodetectors that detect the synchronization signals are arranged on the opposite side of an optical axis of a scanning optical system from the light sources and on a side closer to the scanning optical system that detects the synchronization signals by receiving the light beam deflected to the light source.
Public/Granted literature
- US20090168132A1 OPTICAL SCANNING APPARATUS AND IMAGE FORMING APPARATUS Public/Granted day:2009-07-02
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