Distance detecting apparatus
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United States of America Patent
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Jul 3, 1990
Grant Date -
N/A
app pub date -
Sep 23, 1988
filing date -
Sep 24, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
In a distance detecting apparatus comprising a light receiving sensor PSD which outputs two photo-currents which correspond to the incident angle of reflection of light reflected from an object lit by emitted comprising, an integral capacitor and a pair of logarithmic converters, a shift of the PSD away from the center of the optical axis can be easily compensated by simple electrical adjustment of constant current value of constant current source in a power source shifting circuit connected to one of the logarithmic converters.
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