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:
Mar. 13, 2012
Filed:
Sep. 11, 2006
Masaru Sakamoto, Utsunomiya, JP;
Ryuji Nurishi, Utsunomiya, JP;
Masaru Sakamoto, Utsunomiya, JP;
Ryuji Nurishi, Utsunomiya, JP;
Canon Kabushiki Kaisha, , JP;
Abstract
An image pickup device in which reflectance in a central portion of the splitting optical system is configured large and that in a peripheral portion is configured small, to thereby selectively reflect only a light beam for focus detection in focus detection means and transmit the other portions of the light beam to the image pickup means so that a decrease in an amount of light for the image pickup means can be reduced while securing an amount of light for focus detection.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile