Position responsive apparatus

Details Position responsive apparatus Position responsive apparatus

1988-06-03

1990-03-27

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

250561, 250223B, 356387, G01N 2186

Patent

active

049123378

ABSTRACT:
Position responsive apparatus for determining the proper characteristics of an object within its field of view utilizing a pair of crossed detector arrays, one of which operates to detect the position of an image of the object as it moves in a first direction with respect to a first of the arrays and the other of which observes the desired characteristic of the object at successive positions of the image.

REFERENCES:
patent: 3055834 (1977-10-01), Planke
patent: 3529169 (1970-09-01), Heaney et al.
patent: 3955179 (1976-05-01), Planke
patent: 4166949 (1979-09-01), Pold et al.
patent: 4259571 (1981-03-01), Dubberly

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