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. 11, 2013
Filed:
Oct. 01, 2008
Akira Shirai, Tokyo, JP;
Yoshihiro Maeda, Tokyo, JP;
Hirokazu Nishino, Tokyo, JP;
Fusao Ishii, Menlo Park, CA (US);
Akira Shirai, Tokyo, JP;
Yoshihiro Maeda, Tokyo, JP;
Hirokazu Nishino, Tokyo, JP;
Fusao Ishii, Menlo Park, CA (US);
Silicon Quest Kabushiki-Kaisha, , JP;
Olympus Corporation, , JP;
Abstract
A projection apparatus comprising a light source for emitting incident light and a mirror device that includes a plurality of mirror elements each guiding the incident light to the ON position towards a projection light path under pulse width modulation (PWM) control corresponding to one frame or sub-frame or to the OFF state so as not to guide the incident light to a projection path. The light source is turned off outside the period in which the mirror element with the maximum brightness is in the ON state.