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:
May. 07, 2019
Filed:
Aug. 28, 2017
Applicant:
Canon Kabushiki Kaisha, Tokyo, JP;
Inventor:
Tomohiko Ishibashi, Utsunomiya, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 13/18 (2006.01); G02B 27/58 (2006.01); G02B 7/28 (2006.01); G02B 13/20 (2006.01); H04N 5/232 (2006.01); H04N 5/238 (2006.01); G02B 13/00 (2006.01); G02B 5/00 (2006.01); G02B 27/00 (2006.01); G02B 9/62 (2006.01); G02B 9/60 (2006.01);
U.S. Cl.
CPC ...
G02B 27/58 (2013.01); G02B 7/28 (2013.01); G02B 13/20 (2013.01); H04N 5/238 (2013.01); H04N 5/23212 (2013.01); G02B 5/005 (2013.01); G02B 9/60 (2013.01); G02B 9/62 (2013.01); G02B 13/004 (2013.01); G02B 13/0045 (2013.01); G02B 13/18 (2013.01); G02B 27/0025 (2013.01);
Abstract
An optical system includes an aperture diaphragm, a first optical element disposed on a light incident side of the aperture diaphragm, and a second optical element disposed on a light emission side of the aperture diaphragm. Transmittance distribution of the first optical element satisfies a predetermined conditional expression. Transmittance distribution of the second optical element satisfies a predetermined conditional expression.
Ishibashi, Tomohiko. (2019). Optical system and optical apparatus incorporating the same (U.S. Patent No. 10281735). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10281735
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile