Radiant energy – Invisible radiant energy responsive electric signalling – Infrared responsive
Patent
1995-06-07
1997-09-30
Porta, David P.
Radiant energy
Invisible radiant energy responsive electric signalling
Infrared responsive
356 39, G01J 302
Patent
active
056728751
ABSTRACT:
An improved method and apparatus for use in optical testing of concentration in samples has been developed. The apparatus restricts the solid angle of illumination and the solid angle of detection to eliminate a high proportion of the scattered radiation while allowing the ballistic radiation and the snake-like radiation to be transmitted. In samples which contain multiple scattering centers, this allows less correction for variations in effective pathlength and allows easier calibration of the apparatus. The use of polarized radiation as a means of minimizing scattered radiation in the sample is also disclosed.
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Block Myron J.
Sodickson Lester
Hanig Richard
Optix LP
Porta David P.
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