Invention Grant
- Patent Title: Optical scanning device, image forming apparatus and liquid crystal device driving method
- Patent Title (中): 光学扫描装置，成像装置和液晶装置的驱动方法
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Application No.: US11969709Application Date: 2008-01-04
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Publication No.: US07719737B2Publication Date: 2010-05-18
- Inventor: Taku Amada , Seizo Suzuki , Akihisa Itabashi , Hiroyuki Suhara , Mitsuo Suzuki
- Applicant: Taku Amada , Seizo Suzuki , Akihisa Itabashi , Hiroyuki Suhara , Mitsuo Suzuki
- Applicant Address: JP Tokyo
- Assignee: Ricoh Company, Ltd.
- Current Assignee: Ricoh Company, Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2004-006820 20040114; JP2004-050054 20040225; JP2004-105468 20040331
- Main IPC: G02B26/08
- IPC: G02B26/08
Abstract:
An optical scanning device includes a laser-beam-phase-modulatable liquid crystal device. The liquid crystal device has stripe-like electrode patterns arranged in one direction, with a provision of a part for changing an effective value of a driving voltage separately for each of stripe-like electrode patterns.
Public/Granted literature
- US20080170282A1 OPTICAL SCANNING DEVICE, IMAGE FORMING APPARATUS AND LIQUID CRYSTAL DEVICE DRIVING METHOD Public/Granted day:2008-07-17
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