Accession Number : ADD004448

Title :   Transparent Optical Power Meter.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE ARMY WASHINGTON D C

Personal Author(s) : Elmer,Frank J

Report Date : 26 Apr 1977

Pagination or Media Count : 5

Abstract : This patent covers 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.

Descriptors :   *Patents, *Power meters, *Optical equipment, Transparence, Light, Beams(Radiation), Intensity, Measurement, Thermal properties

Subject Categories : Optical Detection and Detectors
      Optics

Distribution Statement : APPROVED FOR PUBLIC RELEASE