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:
Jun. 14, 2011
Filed:
Feb. 20, 2009
Applicants:
Taichi Honjo, Fussa, JP;
Keiichi Kobayashi, Higashiyamato, JP;
Hideaki Inoue, Musashimurayama, JP;
Inventors:
Assignee:
Casio Computer Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 27/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A projection apparatus including a projection drive control unit modulating an emitted light from a light source unit for each of a plurality of color components at predetermined time, and a projection distance acquisition unit irradiating light to the projection screen to acquire a distance to the projection screen, wherein the projection distance acquisition unit carries out laser distance measurement during a period the projection drive control unit modulates a color component of the emitted light to color components except one color component of a plurality of modulated color components.