Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Tsutomu Matsui0
Tsuyoshi Kawabata0
Date of Patent
January 1, 2008
0Patent Application Number
109494700
Date Filed
September 27, 2004
0Patent Primary Examiner
Patent abstract
The apparatus has a lens supporting unit which supports one side of a lens holder holding one lens forming a part of an expander lens with a plurality of plate springs, a lens driving unit which apply a driving force to the lens holder utilizing an electromagnetic force, and a solenoid which allows a plunger to be abutted and spaced on and from a surface on one side of the lens holder, with an elastic member interposed therebetween, in a position in the middle of a plurality of connecting regions where the plate springs are respectively connected.
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