The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jul. 14, 2020

Filed:

Jun. 22, 2016
Applicant:

Canon Kabushiki Kaisha, Tokyo, JP;

Inventors:

Rie Ishimatsu, Utsunomiya, JP;

Kazuhiko Momoki, Koshigaya, JP;

Yutaka Yamaguchi, Utsunomiya, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 5/232 (2006.01); G02B 5/30 (2006.01); G02B 27/28 (2006.01); G03B 17/14 (2006.01); G03B 5/00 (2006.01); H04N 5/225 (2006.01);
U.S. Cl.
CPC ...
G03B 17/14 (2013.01); G02B 5/3025 (2013.01); G02B 27/281 (2013.01); G02B 27/286 (2013.01); G02B 27/288 (2013.01); G03B 5/00 (2013.01); H04N 5/23209 (2013.01); G03B 2205/00 (2013.01); H04N 5/2254 (2013.01);
Abstract

The polarization acquisition apparatus is configured to allow an image capturing system including an interchangeable lens and an image capturing apparatus to perform image capturing using polarized light. The polarization acquisition apparatus includes a variable polarization axis element in which a direction of its polarization transmission axis is variable, a driver configured to operate the variable polarization axis element so as to change the direction of the polarization transmission axis, a first mount to which the image capturing apparatus is detachably attachable, and a second mount to which the interchangeable lens is detachably attachable. The driver is configured to operate the variable polarization axis element so as to change the direction of the polarization transmission axis to at least three directions when the image capturing is performed multiple times.


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