Lens mount for viewfinder cameras
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United States of America Patent
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May 16, 2006
Grant Date -
Apr 28, 2005
app pub date -
Feb 4, 2004
filing date -
Mar 20, 2003
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A lens mount for viewfinder cameras, having a distance setting ring and, coupled thereto, an apparatus for transmitting the set distance to the setting lever of a measuring viewfinder arranged on the camera side. The apparatus contains an outer worm connected to the distance setting ring, an inner worm, inserted in said outer worm and guided rectilinearly in the lens mount, and a cam ring rotatably supported in the inner worm and with an axial cam pointing to the camera on the end face, is characterized in that the cam ring is locked into an annular groove in the inner wall of the inner worm and is provided with preferably two pins which point radially outward over the edge of the inner worm at the end of the camera side, and which engage in each case in an axial groove in the outer worm.
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