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:
Feb. 21, 2017
Filed:
Dec. 01, 2014
Applicant:
Canon Kabushiki Kaisha, Tokyo, JP;
Inventor:
Motohisa Ito, Chiba, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03B 21/20 (2006.01); G03B 21/13 (2006.01); G03B 37/04 (2006.01); G03B 21/00 (2006.01);
U.S. Cl.
CPC ...
G03B 21/2053 (2013.01); G03B 21/13 (2013.01); G03B 37/04 (2013.01); G03B 21/005 (2013.01); G03B 21/2013 (2013.01);
Abstract
An image display apparatus projects a first image by using a light source constituted by a plurality of point light sources, performs lighting in a unit of lighting formed from at least one point light source of the plurality of point light sources, and controls, in the unit of lighting, lighting in an overlapped area between the first image and a second image projected from another image display apparatus so as to equalize luminances in the overlapped area and a non-overlapped area when the second image is a solid black frame.