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:
Jul. 07, 2015
Filed:
Dec. 18, 2012
Applicant:
Canon Kabushiki Kaisha, Tokyo, JP;
Inventors:
Jun Kawata, Fujisawa, JP;
Atsushi Morita, Yokohama, JP;
Assignee:
CANON KABUSHIKI KAISHA, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 27/00 (2006.01); G01J 1/04 (2006.01); G01J 1/32 (2006.01); G09G 3/36 (2006.01); G01J 3/50 (2006.01); G09G 3/00 (2006.01);
U.S. Cl.
CPC ...
G01J 1/0425 (2013.01); G01J 1/0422 (2013.01); G01J 1/32 (2013.01); G01J 3/506 (2013.01); G01J 1/0474 (2013.01); G09G 3/006 (2013.01); G09G 3/36 (2013.01); G09G 2320/0233 (2013.01); G09G 2320/0242 (2013.01); G09G 2320/041 (2013.01); G09G 2320/0693 (2013.01); G09G 2360/145 (2013.01);
Abstract
An image display apparatus according to the present invention, comprises: a display panel displaying an image on a screen; and a photometric unit measuring light incident from the screen, wherein the photometric unit includes: a sensor measuring the incident light; and a light guide unit refracting the incident light and guiding the refracted light to the sensor.