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. 26, 2019
Filed:
Jul. 31, 2017
Canon Kabushiki Kaisha, Tokyo, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A light-emitting apparatus includes: a light source unit; an optical sensor configured to acquire a light detection value corresponding to light emitted from the light source unit; a temperature sensor configured to acquire a temperature detection value corresponding to temperature of the optical sensor; and a correction unit configured to execute switching between first processing to acquire a current corrected detection value by correcting a current light detection value, based on a current temperature detection value, and second processing to acquire a current corrected detection value, based on: 1) at least one of a past light detection value and a past corrected detection value; 2) a past temperature detection value; and 3) the current temperature detection value.