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:
May. 30, 2006
Filed:
Jun. 20, 2003
Kimihiko Nishioka, Hachioji, JP;
Tetsuhide Takeyama, Hachioji, JP;
Tetsuo Nagata, Hachioji, JP;
Kazuhito Hayakawa, Hachioji, JP;
Toshiyuki Nagaoka, Akishima, JP;
Kimihiko Nishioka, Hachioji, JP;
Tetsuhide Takeyama, Hachioji, JP;
Tetsuo Nagata, Hachioji, JP;
Kazuhito Hayakawa, Hachioji, JP;
Toshiyuki Nagaoka, Akishima, JP;
Olympus Corporation, Tokyo, JP;
Abstract
The invention provides an optical apparatus enabling diopter adjustment, etc. to be achieved using, for instance, a reflection type variable-optical property optical element or a variable-optical property mirror but without recourse to any mechanical moving part. The variable-optical property mirrorcomprises an aluminum-coated thin filmand a plurality of electrodes. Via variable resistorsand a power source switcha power sourceis connected between the thin filmand the electrodes, so that the resistance values of the variable resistorscan be controlled by an operating unit. The shape of the thin filmas a reflecting surface is controlled by changing the resistance value of each variable resistorin response to a signal from the operating unitin such a manner that the imaging capability of the variable mirror is optimized.