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. 20, 2018
Filed:
Nov. 18, 2016
Applicant:
Canon Kabushiki Kaisha, Tokyo, JP;
Inventor:
Takehito Kawasumi, Saitama, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03B 21/20 (2006.01); G02B 3/00 (2006.01); H04N 9/31 (2006.01); G02B 27/14 (2006.01); G02B 27/10 (2006.01);
U.S. Cl.
CPC ...
G03B 21/208 (2013.01); G02B 27/10 (2013.01); G02B 27/141 (2013.01); G03B 21/204 (2013.01); G03B 21/2013 (2013.01); G03B 21/2066 (2013.01); G02B 3/0056 (2013.01); H04N 9/3152 (2013.01);
Abstract
A light source optical system includes a micro lens array, a condenser lens unit, and a dichroic surface. In a direction orthogonal to an optical axis in a cross section parallel to a normal of the dichroic surface and the optical axis of the condenser lens unit, a width of the dichroic surface is narrower than a width of the condenser lens unit. A light source optical system satisfies a predetermined conditional expression.