Optics: measuring and testing – Of light reflection
Patent
1996-04-04
1997-12-16
Font, Frank G.
Optics: measuring and testing
Of light reflection
G01N 2155
Patent
active
056991649
ABSTRACT:
The use of a telecentric system allows for minimizing the changes in the measured radiometric quantity as a result of defocus or tilt of the object under measurement or of the detector. In a preferred embodiment, a telecentric illuminating system is provided, which illuminates an object from a source. A telecentric receiving system receives reflections from the object and relays them to a detector. In another preferred embodiment, a telecentric system is also described that is appropriate for radiance or radiant intensity measurements.
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"Instruction Manual for the Model 191 Series Specular Gonioreflectometer Head"; EG&G Gamma Scientific, San Diego, California; Jun. 15, 1992; p.28.
Carniglia Charles K.
Lehan John P.
Draegert David A.
Font Frank G.
Merlino Amanda
Pace Salvatore P.
The BOC Group Inc.
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