Mechanical control apparatus of a single lens reflex camera
AssigneeAsahi Kogaku Kogyo Kabushiki Kaisha
InventorsToshiyuki Kitazawa, Tomoaki Itabashi
Life of this patent
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Abstract
A mechanical control apparatus of a single lens reflex (SLR) camera is provided that includes a rotatable cam having a shutter cam for charging a shutter and a mirror cam, integral and coaxial with the shutter cam, for charging a mirror. The mechanical control apparatus further includes a diaphragm resetting lever, coaxial to the rotatable cam, for resetting a diaphragm of the camera in association with the rotation of the cam.
Claims21
A mechanical control apparatus of a single lens reflex camera comprising:
- three coaxial rotating members including,
- a shutter cam for charging a shutter of the camera;
- a mirror cam for charging a mirror of the camera;
- and,
- a diaphragm resetting mechanism for resetting a diaphragm of the camera in association with rotation of at least one said shutter cam and said mirror cam.
A mechanical control apparatus of a single lens reflex camera comprising:
- a shutter cam for charging a shutter;
- a mirror cam for charging a mirror;
- and,
- a diaphragm resetting lever for resetting a diaphragm of the camera in association with rotation of said mirror cam;
- means for mounting said shutter cam, said mirror cam, and said diaphragm resetting lever for rotation coaxially with each other.
A mechanical control apparatus of a single lens reflex camera comprising:
- a mirror charge mechanism for charging a mirror provided on an optical axis of a taking lens of the camera;
- a shutter charge mechanism for charging a shutter of the camera;
- a diaphragm driving mechanism for driving a diaphragm of the camera;
- a rotatable cam member comprising a first cam mounted for rotation to drive said mirror charge mechanism and a second cam mounted for rotation to drive said shutter charge mechanism to thereby charge the shutter and the mirror of the camera at a predetermined time, said first cam mounted for coaxial rotation with said second cam;
- and,
- a resetting lever coaxial to said rotatable cam member for driving said diaphragm driving mechanism in association with the charging operation of the mirror to thereby reset the diaphragm.
Dependencies are inferred from the claim text.