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:
Mar. 30, 2010
Filed:
Aug. 10, 2005
Jyunichi Aizawa, Tokyo, JP;
Akihisa Miyata, Tokyo, JP;
Jyunichi Aizawa, Tokyo, JP;
Akihisa Miyata, Tokyo, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
A reflection surface () of a mirror () has a rotationally-symmetrical shape about an optical axis (). The mirror () is rotatably supported by a pivot supporting portion () on the position of the optical axis () of the reflection surface () or in the vicinity of the optical axis (). Furthermore, the mirror () is slidably supported by slide supporting portions () at two positions on the upper part thereof. With such a configuration, the mirror () is supported at three points. Further, even when the mirror () expands and contracts due to the change in temperature or the like, the deformation of the reflection surface () of the mirror () is prevented by the action of the slide supporting portions (). As a result, it is possible to prevent the generation of distortion of an image projected on a screen ().
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile