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. 20, 2022
Filed:
Apr. 20, 2020
Applicant:
Canon Kabushiki Kaisha, Tokyo, JP;
Inventor:
Michio Kono, Utsunomiya, JP;
Assignee:
CANON KABUSHIKI KAISHA, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03F 7/20 (2006.01); G02B 26/08 (2006.01);
U.S. Cl.
CPC ...
G03F 7/70291 (2013.01); G02B 26/0841 (2013.01); G03F 7/7015 (2013.01); G03F 7/70208 (2013.01); G03F 7/70566 (2013.01); G03F 7/70941 (2013.01);
Abstract
An illumination optical system of the present invention includes a first lens array FE including a plurality of lens cells dividing a light flux emitted from a light source into a plurality of light fluxes, a second lens array MLAi including lens cells on which spot lights exiting from the lens cells included in the first lens array FE are condensed, and a first optical member ILimaging the spot light, which has been condensed on the lens cell included in the second lens array MLAi, on one of optical modulation elements constituting an optical modulation unit.