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:
Sep. 09, 2003
Filed:
Aug. 08, 2001
Kimihiko Nishioka, Hachioji, JP;
Tetsuhide Takeyama, Hachioji, JP;
Tetsuo Nagata, Hachioji, JP;
Kazuhito Hayakawa, Hachioji, JP;
Toshiyuki Nagaoka, Akishima, JP;
Olympus Optical Co., Ltd., 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 mirror comprises an aluminum-coated thin film and a plurality of electrodes Via variable resistors and a power source switch a power source is connected between the thin film and the electrodes so that the resistance values of the variable resistors can be controlled by an operating unit The shape of the thin film as a reflecting surface is controlled by changing the resistance value of each variable resistor in response to a signal from the operating unit in such a manner that the imaging capability of the variable mirror is optimized.