Invention Grant
- Patent Title: Holding structure for holding reflecting mirror, projection optical system unit, optical engine, and image projecting apparatus
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Application No.: US15220809Application Date: 2016-07-27
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Publication No.: US09964733B2Publication Date: 2018-05-08
- Inventor: Tetsuya Fujioka , Akihisa Mikawa , Hideo Kanai , Yasunari Mikutsu , Satoshi Tsuchiya , Takahiro Hiramatsu , Yukimi Nishi , Jun Mashimo , Yoshito Saito
- Applicant: Tetsuya Fujioka , Akihisa Mikawa , Hideo Kanai , Yasunari Mikutsu , Satoshi Tsuchiya , Takahiro Hiramatsu , Yukimi Nishi , Jun Mashimo , Yoshito Saito
- Applicant Address: JP Tokyo
- Assignee: Ricoh Company, Ltd.
- Current Assignee: Ricoh Company, Ltd.
- Current Assignee Address: JP Tokyo
- Agency: IPUSA, PLLC
- Priority: JP2015-150974 20150730
- Main IPC: G03B21/28
- IPC: G03B21/28 ; G02B7/182 ; G02B5/10 ; G03B21/00 ; G03B21/14
Abstract:
A holding structure holds a reflecting mirror. The holding structure includes a reflecting mirror bracket holding the reflecting mirror; a protrusion disposed on the reflecting mirror; a protrusion supporting part disposed on the reflecting mirror bracket and supporting the protrusion; and a spacer disposed between the protrusion supporting part and the reflecting mirror bracket.
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