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:
Apr. 02, 2013
Filed:
Sep. 10, 2009
Applicant:
Mamoru Shibasaki, Tachikawa, JP;
Inventor:
Mamoru Shibasaki, Tachikawa, JP;
Assignee:
Casio Computer Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03B 21/20 (2006.01); G03B 21/26 (2006.01); G09G 3/32 (2006.01);
U.S. Cl.
CPC ...
Abstract
A projection apparatus projecting images of respective color components sequentially includes a light source section having a plurality of light emitting elements (where n is a natural number greater than one), and a driving control section for driving each of the light emitting elements making up the light source section, by a pulse width modulation scheme with a phase difference based on λ/n (where λ is a lighting period unit), in synchronism with a projection period unit of the image of each color component.