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:
Sep. 22, 2020
Filed:
Sep. 15, 2016
Applicant:
Canon Kabushiki Kaisha, Tokyo, JP;
Inventor:
Hiroto Kano, Utsunomiya, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 27/14 (2006.01); G02B 27/10 (2006.01); H04N 1/028 (2006.01); H04N 1/19 (2006.01); H04N 1/12 (2006.01); G02B 27/00 (2006.01);
U.S. Cl.
CPC ...
G02B 27/106 (2013.01); G02B 27/0075 (2013.01); H04N 1/028 (2013.01); H04N 1/02815 (2013.01); H04N 1/1255 (2013.01); H04N 1/19 (2013.01); H04N 2201/0438 (2013.01);
Abstract
An image forming optical system includes a first image forming unit configured to form an image of a first surface onto a second surface, a second image forming unit including at least a portion of the first image forming unit and configured to form an image of the second surface onto a third surface, and a deflection unit configured to deflect light from the second surface toward the third surface. The numerical aperture of the first image forming unit on the side toward the second surface is larger than the numerical aperture of the second image forming unit on the side toward the second surface.