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. 28, 2020
Filed:
Jul. 14, 2016
Applicant:
Jvc Kenwood Corporation, Yokohama-shi, Kanagawa, JP;
Inventors:
Naoya Okamoto, Yokohama, JP;
Naoya Aizu, Yokohama, JP;
Assignee:
JVC KENWOOD Corporation, Yokohama-shi, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N 9/31 (2006.01); G01J 1/42 (2006.01); G03B 33/00 (2006.01); G01J 1/32 (2006.01); G03B 21/00 (2006.01); G03B 21/20 (2006.01);
U.S. Cl.
CPC ...
G01J 1/42 (2013.01); G01J 1/32 (2013.01); G03B 21/006 (2013.01); G03B 21/204 (2013.01); G03B 21/2053 (2013.01); G03B 33/00 (2013.01); H04N 9/312 (2013.01); H04N 9/3105 (2013.01); H04N 9/3161 (2013.01); H04N 9/3167 (2013.01);
Abstract
Light emitted from a light source is irradiated to a reflective light modulator which modulates irradiated light to reflect based on image data and the light reflected by the light modulator is projected. A ratio of return light returning from the light modulator to the light source to the light irradiated to the light modulator is calculated based on the image data. A light amount of the light emitted from the light source is calculated by using the calculated ratio and a detection output of an optical sensor provided between the light source and the light modulator.