Optical variable power module

Details Optical variable power module Optical variable power module

1997-10-03

1999-07-20

Spyrou, Cassandra

Optical: systems and elements

Mirror

With support

359873, 399196, 399211, 399212, 399201, G02B 7182, G03G 1504

Patent

active

059263300

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.

REFERENCES:
patent: 4126389 (1978-11-01), Ikeda et al.
patent: 4427286 (1984-01-01), Bosse
patent: 4571064 (1986-02-01), Hayashi et al.
patent: 5835824 (1998-11-01), Shinohara et al.

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