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:
Jan. 04, 2011
Filed:
Feb. 04, 2008
Yoshihiro Yokote, Yokohama, JP;
Takashi Miwa, Higashi-Osaka, JP;
Ryuhei Amano, Hirakata, JP;
Michihiro Okuda, Hirakata, JP;
Yoshihiro Yokote, Yokohama, JP;
Takashi Miwa, Higashi-Osaka, JP;
Ryuhei Amano, Hirakata, JP;
Michihiro Okuda, Hirakata, JP;
SANYO Electric Co., Ltd., Moriguchi-shi, JP;
Abstract
A projection display apparatus is provided with a projection distance adjustment mechanism for adjusting a distance between a projection plane and an emitting position of projection light, and provided with a focus adjustment mechanism for making a focus adjustment of a projection image with respect to the projection plane. The focus adjustment mechanism is driven such that a projection image is properly focused onto the projection plane in accordance with the distance between the projection plane and the emitting position.