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:
Nov. 22, 2016
Filed:
Sep. 30, 2014
Applicant:
Canon Kabushiki Kaisha, Tokyo, JP;
Inventor:
Futoshi Kobayashi, Tokyo, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03B 9/06 (2006.01); G03B 9/22 (2006.01); H04N 5/225 (2006.01); G02B 7/08 (2006.01);
U.S. Cl.
CPC ...
G03B 9/06 (2013.01); G02B 7/08 (2013.01); G03B 9/22 (2013.01); H04N 5/2254 (2013.01);
Abstract
A light quantity control apparatus includes multiple blade members each including a first curved surface-shaped portion and a hole portion, and a member including multiple protrusion portions each inserted into the hole portion of one of the blade members. The member includes a second curved surface-shaped portion shaped along the first curved surface-shaped portion of each of the blade members. The protrusion portions extend from the second curved surface-shaped portion and extend in parallel with each other.