Optics: measuring and testing – By shade or color – With color transmitting filter
Patent
1992-02-11
1994-05-24
McGraw, Vincent P.
Optics: measuring and testing
By shade or color
With color transmitting filter
2504612, G01N 2164
Patent
active
053153758
ABSTRACT:
Apparatus and method for using the apparatus are provided, where the apparatus provides for a light beam of variable area in a narrow wavelength band, where the size of the beam incident on a sample and relative movement of the sample and light irradiation and collection means is carefully controlled, so as to vary the site of interrogation. A discrete element collector system is used to efficiently collect the emitted light from the sample and direct it to a focusing lens, filter pack and photodetector for collection of the light and transmitting signals to electronic circuitry for analysis.
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Acrogen, Inc.
Hantis K. P.
McGraw Vincent P.
Rowland Bertram I.
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