Optics: measuring and testing – Blood analysis
Patent
1985-10-31
1988-03-15
LaRoche, Eugene R.
Optics: measuring and testing
Blood analysis
356440, 422 73, G01N 3348
Patent
active
047309210
ABSTRACT:
An automated vertical photo densitometer for reading solutions contained in microwell plates. The densitometer utilizes an optical system for minimizing the optical effect of a meniscus on the fluid sample. The invention also discloses a method for determining a centrally located position of a microwell beneath an interrogating beam of light by controlling the size of the light beam and by stepping the well through the beam. A measurement of the light intensity received by a detector is taken at each step. A maximum light intensity value is selected as corresponding to a well position wherein a central area of the fluid sample is substantially within the interrogating beam.
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Day Steven R.
Klein Gerald L.
Liebermann Jerrold D.
Russell Gene D.
Genetic Systems, Inc.
LaRoche Eugene R.
Pascal Robert J.
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