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Patent Searching and Data


Title:
LIGHT INTENSITY ADJUSTING DEVICE, IMAGING OPTICAL SYSTEM, AND IMAGING DEVICE
Document Type and Number:
WIPO Patent Application WO/2014/034133
Kind Code:
A1
Abstract:
The present invention reduces an unpleasant sensation given to a photographer due to ghosting when switching optical filters to match brightness of a subject. A light intensity adjusting device is provided with a plurality of optical filter elements each having different light transmittance, and the reflected light color in the plurality of optical filter elements is substantially identical.

Inventors:
SATO, Yasuhiro (1248 Shimokagemori, Chichibu-sh, Saitama 92, 〒3691892, JP)
YANAGI, Michio (1248 Shimokagemori, Chichibu-sh, Saitama 92, 〒3691892, JP)
Application Number:
JP2013/005134
Publication Date:
March 06, 2014
Filing Date:
August 30, 2013
Export Citation:
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Assignee:
CANON DENSHI KABUSHIKI KAISHA (1248, Shimokagemori Chichibu-sh, Saitama 92, 〒3691892, JP)
International Classes:
G03B11/00; G02B1/11; G02B5/00; G03B9/02; G03B9/04
Foreign References:
JP2004246018A2004-09-02
JP2006080984A2006-03-23
JP2011070150A2011-04-07
JP2006078564A2006-03-23
JP2008008976A2008-01-17
JP2004061903A2004-02-26
JP2001222042A2001-08-17
JP2004295015A2004-10-21
Other References:
See also references of EP 2894513A4
"Handbook of Color Science", COLOR SCIENCE ASSOCIATION IN JAPAN
Attorney, Agent or Firm:
OHTSUKA, Yasunori et al. (7th Fl, Kioicho Park Bldg. 3-6, Kioicho, Chiyoda-k, Tokyo 94, 〒1020094, JP)
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