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:
Dec. 31, 2013
Filed:
Sep. 05, 2008
Yoshihiro Maeda, Hachioji, JP;
Hirokazu Nishino, Akishima, JP;
Akira Shirai, Hino, JP;
Hirotoshi Ichikawa, Hachioji, JP;
Fusao Ishii, Menlo Park, CA (US);
Yoshihiro Maeda, Hachioji, JP;
Hirokazu Nishino, Akishima, JP;
Akira Shirai, Hino, JP;
Hirotoshi Ichikawa, Hachioji, JP;
Fusao Ishii, Menlo Park, CA (US);
Abstract
The present invention provides a projection apparatus that includes a mirror element and a drive circuit for driving a laser light source for projecting an illumination light. The projection apparatus further includes mirror device for modulating the illumination light and a projection lens for projecting the modulated light from the mirror element. The mirror device is disposed on a device substrate and packaged in a package substrate made of a transparent silicon material with a metallic thermal transfer path connected to the device substrate and a cover glass covering the package substrate. The distance between the mirror and the bottom surface of the cover glass is larger than the focal length of the projection lens.