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:
Nov. 07, 2017
Filed:
Jul. 29, 2016
Canon Kabushiki Kaisha, Tokyo, JP;
Daisuke Takayanagi, Kawasaki, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A display apparatus has: a display unit; a light emitting unit for outputting irradiation light; a light detecting unit; an external light intensity specifying unit; and a correcting unit. When the external light intensity is equal to or smaller than an external light determination threshold value and the intensity of light detected by the light detecting unit under irradiating the irradiation light is equal to or smaller than a detected light determination threshold value larger than the external light determination threshold value, an irradiation light intensity is corrected by using a first correcting method. When the external light intensity is larger than the external light determination threshold value or the intensity of light detected by the light detecting unit under irradiating the irradiation light is larger than the detected light determination threshold value, the irradiation light intensity is not corrected or corrected by using a second correcting method.