Optical cell

There is provided by this invention an optical filter comprised of a transparent housing having an inner cavity with frosted sides that diffuse and scatter incident light beams. For transmission of light the cavity is filled with an index of refraction matching fluid which offsets the diffusing and...

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Bibliographic Details
Main Author MURPHY; KENNY P
Format Patent
LanguageEnglish
Published 04.06.1991
Subjects
COLORIMETRY
MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT,POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED,VISIBLE OR ULTRA-VIOLET LIGHT
MEASURING
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHYSICS
RADIATION PYROMETRY
TESTING
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Summary:There is provided by this invention an optical filter comprised of a transparent housing having an inner cavity with frosted sides that diffuse and scatter incident light beams. For transmission of light the cavity is filled with an index of refraction matching fluid which offsets the diffusing and scattering effect of the frosted surfaces to make the optical filter appear optically clear at a predetermined frequency. The fluid has a vaporization coefficient wherein at excessive energy levels the fluid vaporizes and escapes from the orifice such that the high energy light beams are diffused and scattered so that the shutter prevents transmission of high energy light beams.
Bibliography:Application Number: US19900466004