Zoom lens control system and method for zooming control
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Apr 5, 1988
Grant Date -
N/A
app pub date -
May 19, 1986
filing date -
May 20, 1985
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The present invention user plural driving speeds of the focusing lens component of a zoom lens which responds to plural separate control regions of focal length and object position. In each control region, the focusing lens component is driven in predetermined suitable constant speed. By this operation the object is nearly focused on the focal plane. The slight discrepancy between the image position of the object and the ideal plane is regarded as zero.
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