Irradiance analyzer for high power lasers
AssigneeThe United States of America as represented by the Secretary of the Army
InventorRaymond W. Conrad
Life of this patent
Estimating the term…
Abstract
An irradiance analysis system which includes an array of square rods that are joined together and have a flat entrance end and a polished flat exit end through which visible light is transmitted to a Fresnel lens and focused to a particular area where the image focused is photographed so that when the various frames are developed they can be analyzed in a conventional film densitometer to yield quantative data on the temporal variation of laser beam irradiance distributions.
Claims5
An irradiance analyzer for high power lasers comprising an array made of a multiplicity of visibly transparent, cleanly ablating material rods which are opaque to laser radiation and which emit visible radiation when heated by said laser radiation and secured together to form an entrance end on one end of the array and an exit end that is polished on the other end of the array, a Fresnel lens having a surface with securing means mounting the surface of the Fresnel lens to the polished surface of the array, and the Fresnel lens having another surface for focusing light to a film plane and a camera for photographing an image at the film plane.
Dependencies are inferred from the claim text.