Invention Grant
- Patent Title: Optical scanning device, image forming apparatus, and liquid crystal element
- Patent Title (中): 光学扫描装置，成像装置和液晶元件
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Application No.: US11543092Application Date: 2006-10-05
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Publication No.: US08031362B2Publication Date: 2011-10-04
- Inventor: Taku Amada
- Applicant: Taku Amada
- 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: JP2005-295330 20051007
- Main IPC: G06K15/12
- IPC: G06K15/12
Abstract:
A disclosed optical scanning device scans an object scanning surface with a light beam projected from a light source and traveling through an optical system. The optical scanning device includes a liquid crystal element configured to modulate a phase. The liquid crystal element is driven by electric signals and provided on a light path between the light source and the object scanning surface. The liquid crystal element generates different power components in a main scanning direction and a sub scanning direction under temperature variations.
Public/Granted literature
- US20070081152A1 Optical scanning device, image forming apparatus, and liquid crystal element Public/Granted day:2007-04-12
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