Distance measuring device with signal processing circuit for pos

Details Distance measuring device with signal processing circuit for pos Distance measuring device with signal processing circuit for pos

1984-02-27

1987-09-15

Buczinski, Stephen C.

Optics: measuring and testing

Range or remote distance finding

With photodetection

354403, 250201, G01C 324, G01J 120

Patent

active

046935975

ABSTRACT:
The disclosed position measuring device includes a position sensitive detector and a processing circuit therefor. The position sensitive detector includes two terminals carrying signals that vary oppositely according to the incident light. A switch connected to one terminal opens and closes the one terminal, and a signal processor processes one output of the position sensitive detector when the switch is opened and another output of the position sensitive detector when the switch is closed so as to produce normalized light/point position information. A control controls the signal processing circuit and the switch.

REFERENCES:
patent: 4436418 (1984-03-01), Morino
patent: 4445029 (1984-04-01), Nagaoka et al.
patent: 4477168 (1984-10-01), Hosoe
patent: 4479706 (1984-10-01), Takahashi
patent: 4521106 (1985-06-01), Lambeth
patent: 4527892 (1985-07-01), Yamane et al.

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