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:
May. 07, 2019
Filed:
Jan. 18, 2017
Applicant:
Takahiro Kado, Kanagawa, JP;
Inventor:
Takahiro Kado, Kanagawa, JP;
Assignee:
Ricoh Company, Ltd., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03B 21/16 (2006.01); H04N 9/31 (2006.01); G03B 21/20 (2006.01);
U.S. Cl.
CPC ...
H04N 9/3194 (2013.01); G03B 21/16 (2013.01); G03B 21/206 (2013.01); H04N 9/3144 (2013.01); H04N 9/3155 (2013.01); H04N 9/3182 (2013.01);
Abstract
An image projection apparatus is configured to project an image onto a projection receiving part. The image projection apparatus includes: a light source; an optical modulator configured to form the image using light from the light source; a control unit configured to control the light source and the optical modulator; and a temperature detector configured to detect an environmental temperature. The control unit is configured to control at least one of the light source and the optical modulator to adjust color tone of the image depending on the environmental temperature detected by the temperature detector.