Optical alignment sensor

Details Optical alignment sensor Optical alignment sensor

1976-01-12

1977-07-12

Dixon, Harold A.

Radiant energy

Means to align or position an object relative to a source or...

250338, 250342, G01M 2100

Patent

active

040356540

ABSTRACT:
Method and apparatus for determining the accurate alignment of an intense optical beam wherein the beam is passed through a preselected region of an optical transmission element which absorbs a small amount of power transmitted therethrough producing a temperature distribution which is measured by appropriately placed thermal sensors whereupon the ratio of the temperature differences between the selected regions as measured by the thermal sensors provides an accurate indication of the beam's position and any deviations from a predetermined path.

REFERENCES:
patent: 2392873 (1946-01-01), Zahl
patent: 2942117 (1960-06-01), Maxwell
patent: 2999161 (1961-09-01), Lovoff
patent: 3221168 (1965-11-01), Patterson
patent: 3230376 (1966-01-01), Goetze et al.
patent: 3405268 (1968-10-01), Brunton
patent: 3450479 (1969-06-01), Dauber
patent: 3845310 (1974-10-01), Perraudin
patent: 3942012 (1976-03-01), Boux
patent: 3955089 (1976-05-01), McIntyre

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