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:
Aug. 12, 2014
Filed:
Oct. 25, 2010
Hirotaka Mochizuki, Matsumoto, JP;
Kanji Yoshida, Azumino, JP;
Hirotaka Mochizuki, Matsumoto, JP;
Kanji Yoshida, Azumino, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
In at least one embodiment of the disclosure, a projector includes a light shield unit that shields a portion of a light emitted from a light source. The light shield unit is driven by a drive mechanism and rotates around a predetermined rotation axis to change a size of a light shield area. The light shield unit includes a leading edge having a contour defined by a plurality of first edges and a second edge disposed between the first edges. The second edge configured so as to be shifted toward the light source and away from the first edges during rotation of the light shield unit.