Patent ID: 7338220
Filing Date: 2008-03-04
Classification: G03B

Abstract:
1. An image-taking apparatus having a mirror drive apparatus comprising: a mirror, which is movable to a first position at which the mirror is disposed in an optical path and to a second position at which the mirror is retracted from the optical path; a first biasing member, which produces biasing force for driving the mirror from the second position to the first position; a second biasing member, which produces biasing force for driving the mirror from the first position to the second position; a holding member, which is allowed to hold the first biasing member in a charged state; a first cam, which includes a charge portion for charging the second biasing member and a release portion for releasing the charge of the second biasing member; a second cam, which releases the holding by the holding member; and a motor, which drives both of the first and second cams, wherein the motor drives the first and second cams only in one direction.