Shock-absorbing mechanism for movable mirror of camera
AssigneeRicoh Imaging Company, Ltd.
InventorToshiaki Yamada
Life of this patent
Estimating the term…
Abstract
A movable mirror shock-absorbing mechanism of a camera is provided and includes a movable mirror rotatable between a viewfinder light-guiding position and a retracted position, a first shock-absorbing member which comes into contact with, and is pressed and moved by, the movable mirror to absorb shock of the movable mirror when the movable mirror rotates between the viewfinder light-guiding position and the retracted position, and a second shock-absorbing member to absorb shock of the movable mirror when the movable mirror rotates in the opposite.
Claims9
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 from an object toward a viewfinder optical system, and a retracted position, in which said movable mirror is retracted from said photographing optical path to allow said object light to travel toward a photographic light-receiving medium;
- a mirror-retracting shock-absorbing member which comes into contact with, and is pressed and moved in a first pressing-moving direction by, said movable mirror to absorb shock of said movable mirror when said movable mirror rotates from said viewfinder light-guiding position to said retracted position;
- and
- a mirror-advancing shock-absorbing member which is held in a limit position in which a range of movement of said mirror-retracting shock-absorbing member in a direction opposite to said first pressing-moving direction is limited when said movable mirror is in said retracted position, wherein said mirror-advancing shock-absorbing member comes into contact with, and is pressed and moved in a second pressing-moving direction by, said movable mirror from said limit position to release the limitation of said range of movement of said mirror-retracting shock-absorbing member and to absorb shock of said movable mirror when said movable mirror rotates from said retracted position to said viewfinder light-guiding position.
A movable mirror shock-absorbing mechanism of a camera, comprising:
- a movable mirror which is supported to be movable between a viewfinder light-guiding position, in which said movable mirror is positioned in a photographing optical path to reflect incident light from an object toward a viewfinder optical system, and a retracted position, in which said movable mirror is retracted from said photographing optical path to allow said object light to travel toward a photographic light-receiving medium;
- a first shock-absorbing member which comes into contact with, and is pressed and moved by, said movable mirror to absorb shock of said movable mirror when said movable mirror rotates in one direction between said retracted position and said viewfinder light-guiding position;
- and
- a second shock-absorbing member which comes into contact with, and is pressed and moved by, said movable mirror to absorb shock of said movable mirror when said movable mirror rotates in the other direction between said viewfinder light-guiding position and said retracted position,
- wherein, when one of said first shock-absorbing member and said second shock-absorbing member is pressed and moved in a pressing-moving direction by said movable mirror, the other of said first shock-absorbing member and said second shock-absorbing member restricts a range of movement of said one of said first shock-absorbing member and said second shock-absorbing member in a direction opposite to said pressing-moving direction.
Dependencies are inferred from the claim text.