Radiant energy – Invisible radiant energy responsive electric signalling – Infrared responsive
Patent
1995-10-02
1998-06-02
Hannaher, Constantine
Radiant energy
Invisible radiant energy responsive electric signalling
Infrared responsive
25033912, 2503411, 2503412, G01N 2135
Patent
active
057603995
ABSTRACT:
In an instrument for making an NIR spectrographic transmission measurement of a pharmaceutical tablet, masking structure is provided to prevent or reduce leakage of radiation around the edge of the tablet. The masking structure (30, 44) constricts the boundary of the light beam so that it is within the boundary of the top surface of the tablet where it impinges upon the top surface. The tablet is received in a well slightly larger than the tablet formed in a tablet locator (20). An aperture (39) is formed in the bottom of the well.
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Foss NIRSystems, Inc.
Hannaher Constantine
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