Distance detector device

Details Distance detector device Distance detector device

1982-12-20

1986-04-01

Buczinski, S. C.

Optics: measuring and testing

Range or remote distance finding

With photodetection

354403, G01C 308, G03B 700

Patent

active

045794502

ABSTRACT:
Light projected from an active lighting means to an object is reflected by the object, and a light spot is produced on a light-sensitive element by the light reflected from the object. The distance to the object is determined by detecting the position of the light spot on the light-sensitive element.
The light-sensitive element for receiving the reflected light from the object has formed on a portion of a surface thereof an insensitive zone which has the same width or the same area as the light image produced by the reflected light and the light-sensitive element moves on an image plane in a certain relationship with the distance to the object whereby a change in a photoelectric output of the light-sensitive element is detected to detect the distance to the object.

REFERENCES:
patent: 4304487 (1981-12-01), Odone et al.
patent: 4436418 (1984-03-01), Morino

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