Automatic focusing unit for camera
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Nov 10, 1981
Grant Date -
N/A
app pub date -
Nov 18, 1980
filing date -
Nov 27, 1979
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An automatic focusing unit of the invention is detachably mounted on a camera having a focusing tube which is adjustable to focus photographic lens on an object to be photographed. The automatic focusing unit includes a lens position detector which is urged to project outwardly from the housing of the unit and come into contact with the focusing tube to detect the position of the lens when the unit is mounted on the camera. The lens position detector is withdrawn into the housing of the unit against a biasing force when an external force is exerted thereon and successfully protected from any damage occurring from erroneous mounting of the unit on the camera.
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Cited Art Landscape
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