Invention Grant
- Patent Title: Light amount adjusting device, imaging optical system, and image capturing apparatus
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Application No.: US16018239Application Date: 2018-06-26
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Publication No.: US10416443B2Publication Date: 2019-09-17
- Inventor: Yasuhiro Sato , Michio Yanagi
- Applicant: CANON DENSHI KABUSHIKI KAISHA
- Applicant Address: JP Chichibu-shi
- Assignee: Canon Denshi Kabushiki Kaisha
- Current Assignee: Canon Denshi Kabushiki Kaisha
- Current Assignee Address: JP Chichibu-shi
- Agency: Venable LLP
- Priority: JP2012-192229 20120831
- Main IPC: G02B26/02
- IPC: G02B26/02 ; G03B9/02 ; G03B11/00 ; G02B26/00 ; G02B27/00 ; G02B1/11
Abstract:
There is provided with a light amount adjusting device. The light adjusting device has a plurality of optical filter elements. The plurality of optical filter elements have different light transmittances. Reflected light colors from the plurality of optical filter elements are substantially equal.
Public/Granted literature
- US20180299663A1 LIGHT AMOUNT ADJUSTING DEVICE, IMAGING OPTICAL SYSTEM, AND IMAGE CAPTURING APPARATUS Public/Granted day:2018-10-18
Information query
