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:
Jul. 20, 1999
Filed:
Oct. 03, 1997
Kazuhiro Ichinokawa, Tokyo, JP;
Asahi Kogaku Kogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
An optical variable power module has a movable lens unit slidably mounted on a chassis, such that the lens unit is moved along an optical axis defined thereby, and a movable mirror unit slidably mounted on the chassis, such that the mirror unit is moved along the optical axis of the lens unit. The movable mirror unit has a frame, a pair of supporting plates shiftably attached to the frame, and at least one mirror supported by the supporting plates. The chassis has a pair of abutment faces formed thereon such that the supporting plates can be abutted against the abutment faces. The abutment faces define a plane perpendicular to the optical axis of the lens unit, whereby the supporting plates are shifted with respect to the frame such that the longitudinal axis of the mirror supported by the supporting plates is perpendicular to the optical axis of the lens unit.