Invention Grant
US09279566B2 Light deflector, light source device, image projecting device, and display device
有权
光偏转器，光源装置，图像投影装置和显示装置
- Patent Title: Light deflector, light source device, image projecting device, and display device
- Patent Title (中): 光偏转器，光源装置，图像投影装置和显示装置
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Application No.: US13959981Application Date: 2013-08-06
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Publication No.: US09279566B2Publication Date: 2016-03-08
- Inventor: Takehiro Nishimori , Kazuhiro Fujita , Toshiharu Murai , Ikuo Maeda , Tatsuya Takahashi
- Applicant: Takehiro Nishimori , Kazuhiro Fujita , Toshiharu Murai , Ikuo Maeda , Tatsuya Takahashi
- Applicant Address: JP Tokyo
- Assignee: RICOH COMPANY, LTD.
- Current Assignee: RICOH COMPANY, LTD.
- Current Assignee Address: JP Tokyo
- Agency: IPUSA, PLLC
- Priority: JP2012-174429 20120806; JP2013-108177 20130522
- Main IPC: G03B21/20
- IPC: G03B21/20 ; H04N9/31 ; G02B19/00 ; F21V13/04 ; F21V5/04 ; F21V7/00 ; F21V29/02
Abstract:
Disclosed is a light deflector including a light-emitting element configured to emit a light beam with a substantially elliptical cross-sectional shape, and a lens configured to condense light emitted from the light-emitting element, wherein an optical axis of the light-emitting element and an optical axis of the lens are decentered and a longitudinal axis of the light beam with the substantially elliptical cross-sectional shape is arranged in a direction orthogonal to a direction of decentering on the lens.
Public/Granted literature
- US20140036241A1 LIGHT DEFLECTOR, LIGHT SOURCE DEVICE, IMAGE PROJECTING DEVICE, AND DISPLAY DEVICE Public/Granted day:2014-02-06
Information query
