Optics: measuring and testing – Of light reflection – With diffusion
Patent
1989-01-17
1991-01-29
Rosenberger, Richard A.
Optics: measuring and testing
Of light reflection
With diffusion
350619, 350630, G01N 2147
Patent
active
049882058
ABSTRACT:
System for measuring the diffuse reflectances of various samples are conscted to include a primary mirror (e.g., an ellipsoidal mirror) and a secondary mirror (e.g., a compound parabolic concentrator) cooperating with a radiation source and a radiation detector.
REFERENCES:
patent: 804996 (1905-11-01), Anthony
patent: 3277773 (1966-10-01), White
patent: 3731991 (1973-05-01), Arnold
patent: 3899672 (1975-08-01), Levi-Setti
McDonnell Thomas E.
Rosenberger Richard A.
Spevack A. David
The United States of America as represented by the Secretary of
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