Patent ID: 8753024
Filing Date: 2014-06-17
Classification: G03B

Abstract:
1. A movable mirror shock-absorbing mechanism of a camera, comprising: a movable mirror which is supported to be rotatable between a viewfinder light-guiding position, in which said movable mirror is positioned in a photographing optical path to reflect incident light emanated from an object toward a viewfinder optical system of said camera, and a retracted position, in which said movable mirror is retracted from said photographing optical path to allow the object-emanated light to travel toward a photographic light-receiving medium; and a shock-absorbing member which includes a pressure receiving portion that is capable of contacting a mirror-side contact portion provided on said movable mirror, said shock-absorbing member being held by a biaser at a shock-absorbing stand-by position at which said pressure receiving portion is positioned in a moving path of said mirror-side contact portion, and said shock-absorbing member being movable in a direction to retract said pressure receiving portion from said moving path of said mirror-side contact portion, wherein said shock-absorbing member is held at said shock-absorbing stand-by position with said pressure receiving portion spaced from said mirror-side contact portion when said movable mirror is at one of said viewfinder light-guiding position and said retracted position, and wherein, when said movable mirror rotates between said viewfinder light-guiding position and said retracted position, said mirror-side contact portion presses said pressure receiving portion to move said shock-absorbing member from said shock-absorbing stand-by position against a biasing force of said biaser, said shock-absorbing member returns to said shock-absorbing stand-by position by said biasing force of said biaser after the pressing of said mirror-side contact portion against said pressure receiving portion is released, and an amount of bouncing of said movable mirror is limited by a contact engagement between said mirror-side contact portion and said pressure receiving portion when said movable mirror bounces.