Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Patent
1992-06-15
1993-05-25
Nelms, David C.
Radiant energy
Photocells; circuits and apparatus
Optical or pre-photocell system
356244, 250576, H01J 314, G01N 2101
Patent
active
052142779
ABSTRACT:
The present invention relates to a cell or holder or reflector for NIRS samples, such as capsules, tablets, or liquids. The cell comprises a main body with a top surface defining a recess. The recess is generally axially symmetrical and diverges generally upwardly from the bottom to the top of the recess. A central 90.degree. conical projection is located at the bottom of the recess and forms an annular groove with the sidewall of the recess. The sidewall of the recess has an annular notch for receiving and supporting a support window. This sidewall of the recess is parabolically shaped from the bottom to the top of the recess. The support window has intersecting grooves in its top surface over which the sample rests, or in which the sample is supported.
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patent: 4303339 (1981-12-01), Glaser et al.
patent: 4847487 (1989-07-01), Bordini
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patent: 4893253 (1990-01-01), Lodder
patent: 5015092 (1991-05-01), Sting
patent: 5017341 (1991-05-01), Takekawa
Kikel Suzanne
Messinger Michael
Nelms David C.
Silverman Arnold B.
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