Transparent optical power meter

Details Transparent optical power meter Transparent optical power meter

1976-01-12

1977-04-26

Goldstein, Herbert

Measuring and testing

Volume or rate of flow

System

G01K 1700

Patent

active

040193810

ABSTRACT:
Method and apparatus for measuring the average power in an optical beam comprising, optical transmission means in the form of an optical element (e.g. a lens, window, or other optical component) placed in the path of said beam, means for maintaining a substantially fixed transmission path of said beam through said optical element, means for measuring the thermal gradient between the portion of said optical element through which said beam passes and the ambient medium, and means for indicating said gradient in terms of the power remaining in the optical beam after passing through the apparatus.

REFERENCES:
patent: 1988858 (1935-01-01), Quereau
patent: 3280626 (1966-10-01), Stempel
patent: 3348055 (1967-10-01), Bulpitt
patent: 3575048 (1971-04-01), DeBenedictis
patent: 3596514 (1971-08-01), Mefferd et al.
patent: 3622245 (1971-11-01), Rasmussen
Edwards "A Glass Disk Talorimeter for Pulsed lasers", in J. Sci. Instrume, vol. 3, No. 6, 6/70.
Gardon "An Instrument for the Direct Measurement of Intense Thermal Radiation", in Rev. of Sci. Instruments, vol. 24, No. 5, 5/53, pp. 366-370.

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