Visually alignable sensor wand which excludes unwanted light fro

Details Visually alignable sensor wand which excludes unwanted light fro Visually alignable sensor wand which excludes unwanted light fro

1975-04-28

1976-06-01

Stolwein, Walter

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

250239, 250216, 356219, G06H 710

Patent

active

039611981

ABSTRACT:
An optical sensor wand is disclosed which is designed to be optically aligned by an operator through use of visible light but which excludes the visible light utilized for alignment from the sensing optical channel whereby the sensing optical system operates in the "dark".

REFERENCES:
patent: 3091694 (1963-05-01), Goodridge
patent: 3214596 (1965-10-01), Schwerdt, Jr. et al.
patent: 3360656 (1967-12-01), Kinnard
patent: 3365572 (1968-01-01), Strauss
patent: 3512130 (1970-05-01), Hulett
patent: 3777170 (1973-12-01), Hoffmann
patent: 3812347 (1974-05-01), Cunningham et al.

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