Invention Grant
- Patent Title: Optical apparatus and imaging system including the same
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Application No.: US15694290Application Date: 2017-09-01
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Publication No.: US10274695B2Publication Date: 2019-04-30
- Inventor: Daisuke Takama , Takayuki Kimura
- Applicant: DENSO CORPORATION
- Applicant Address: JP Kariya, Aichi-pref.
- Assignee: DENSO CORPORATION
- Current Assignee: DENSO CORPORATION
- Current Assignee Address: JP Kariya, Aichi-pref.
- Agency: Knobbe, Martens, Olson & Bear, LLP
- Priority: JP2013-149808 20130718
- Main IPC: G02B9/00
- IPC: G02B9/00 ; G02B7/02 ; G02B13/16 ; H04N5/225

Abstract:
An optical apparatus captures imaging light entering into an imager to acquire an image of an object. The optical apparatus includes a lens module and a support. The lens module is configured by a combination of two or more lenses, captures the imaging light through the lenses, and focuses the captured imaging light on the imager. The support supports the lens module at a position apart from the imager by a predetermined distance, such that the imager and the lenses are aligned on the optical axis, and a focal point of the imaging light is formed on the imager. The support is formed such that an expansion-contraction ratio, at which the support expands or contracts along the optical axis in accord with changes in ambient temperature of the optical apparatus, becomes a first expansion-contraction ratio at which the support expands or contracts so as to cancel a movement of the focal point occurring in the lens module along the optical axis in accord with the changes in ambient temperature of the optical apparatus.
Public/Granted literature
- US20170363835A1 OPTICAL APPARATUS AND IMAGING SYSTEM INCLUDING THE SAME Public/Granted day:2017-12-21
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