Adapter device
AssigneeAsahi Kogaku Kogyo Kabushiki Kaisha
InventorShinsuke Kohmoto
Life of this patent
Estimating the term…
Abstract
An adapter device is adapted to a camera lens, including a stationary ring and a focus ring rotatably attached to the stationary ring. The adapter device is provided with a first ring which is arranged to be fixed to the stationary ring of the camera lens. A second ring is rotatably attached to the first ring and is arranged to be fixed to the focus ring of the camera lens. A click stop mechanism is provided between the first ring and second ring, for click-stopping the second ring at a prescribed angular position. The click stop mechanism includes a plurality of click grooves formed on the inner peripheral surface of the second ring, a click member provided to the outer peripheral surface of the first ring, which is capable of fitting into the click groove, and a leaf spring for urging the click member into the click groove.
Claims21
An adapter device which is detachably attached to a camera lens including a stationery ring and a rotary ring rotatably attached to said stationary ring, said adapter device comprising:
- a first ring being arranged to be attached to said stationary ring and having an inner periphery which is to be interfitted to an outer periphery of said stationary ring;
- a second ring rotatably connected to said first ring, being arranged to be attached to said rotary ring and having an inner periphery which is to be interfitted to the outer periphery of said rotary ring;
- fixing means for releasably fixing said adapter device to said camera lens;
- click stop means provided between said first ring and said second ring, for click-stopping said second ring at a prescribed angular position;
- and
- coupling means for coupling said second ring to said first ring as a unit, whereby said first ring, said second ring, and said click stop means may be detachably attached and removed from said camera lens as a unit.
An adapter device, which is detachably attached to a camera lens, including a stationary ring and a focus ring rotatably attached to said stationary ring, comprising:
- a first ring being arranged to be fixed to said stationary ring of said camera lens;
- a second ring rotatably attached to said stationary ring and being arranged to be fixed to said focus ring of said camera lens;
- fixing means for releasably fixing said adapter device to said camera lens;
- click stop means provided between said first ring and said second ring, for click-stopping said second ring at a prescribed angular position;
- and
- coupling means for coupling said second ring to said first ring as a unit, whereby said first ring, said second ring, and said click stop means may be detachably attached and removed from said camera lens as a unit.
An adapter device which is detachably attached to a camera lens including a stationary member being stationary relative to a camera body and a focus ring rotatably connected to said stationary member, for adjusting a focal point said adapter comprising:
- a first ring being arranged to be attached to said stationary member;
- a second ring being arranged to be attached to the focus ring;
- fixing means for releasably fixing said adapter device to said camera lens;
- a click stop means provided between said first and said second rings, for click-stopping said second ring at a prescribed angular position;
- and
- coupling means for coupling said second ring to said first ring as a unit, whereby said first ring, said second ring, and said click stop means may be detachably attached and removed from said camera lens as a unit.
An adapter device, which is detachably attached to a camera lens provided on a camera body, said camera lens including a focus ring being rotatably arranged for adjusting a focal point, comprising:
- a first ring being arranged to be attached to a portion being stationary to the camera body;
- a second ring being arranged to be attached to said focus ring;
- fixing means for releasably fixing said adapter device to said camera lens;
- click stop means provided between said first and said second rings, for click-stopping said second ring at a prescribed angular position;
- and
- coupling means for coupling said second ring to said first ring as a unit, whereby said first ring, said second ring, and said click stop means may be detachably attached and removed from said camera lens as a unit.
Dependencies are inferred from the claim text.