Distance measuring system

Details Distance measuring system Distance measuring system

1982-06-23

1984-02-07

Perkey, William B.

Radiant energy

Ionic separation or analysis

Static field-type ion path-bending selecting means

250214AG, 356 1, 356 4, G03B 300, G01C 310

Patent

active

044299672

ABSTRACT:
In the distance measuring system disclosed, light reflected from an object is converted into an electrical signal and processed to detect the distance to the object. Before the distance detecting operation, a signal level detecting operation is carried out in the distance measuring range and the gain of the signal processing or the amount of light for illuminating the object is automatically set for the distance detecting operation.

REFERENCES:
patent: 3820129 (1974-06-01), Hosoe et al.
patent: 3906389 (1975-09-01), Matsumoto et al.
patent: 3999192 (1976-12-01), Hosoe et al.
patent: 4032934 (1977-06-01), Hendrickson et al.
patent: 4123650 (1978-10-01), Hosoe et al.

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