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.
Patent No.:
Date of Patent:
Apr. 30, 2019
Filed:
Apr. 10, 2017
Applicant:
Canon Kabushiki Kaisha, Tokyo, JP;
Inventor:
Rie Ishimatsu, Utsunomiya, JP;
Assignee:
CANON KABUSHIKI KAISHA, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 5/235 (2006.01); H04N 5/238 (2006.01); G02F 1/139 (2006.01);
U.S. Cl.
CPC ...
H04N 5/238 (2013.01); G02F 1/1393 (2013.01);
Abstract
An image pickup apparatus is configured to obtain polarization information based on a plurality of images having different polarization states obtained by changing a retardation provided to light from an object. The image pickup apparatus includes an image pickup element configured to obtain the plurality of images, and a controller configured to change the retardation and to set an image pickup condition of the image pickup apparatus. The controller sets the image pickup condition while the retardation is changed to a reference value that is from −90 degrees to +90 degrees inclusive.