Optics: measuring and testing – By dispersed light spectroscopy – With sample excitation
Reexamination Certificate
2005-08-09
2005-08-09
Smith, Zandra V. (Department: 2877)
Optics: measuring and testing
By dispersed light spectroscopy
With sample excitation
C422S052000, C436S172000
Reexamination Certificate
active
06927851
ABSTRACT:
A hand-held assay device measuring chemiluminescence generated by as ample of ATP or other entity capable of chemically reacting to generate photoluminescence includes a photodiode detecting light which is emitted from the sample to produce a sample signal, another photodiode generating a reference signal in response to environmental changes, switched integrators amplifying the sensor signal over a controllable integration time to detect an output signal indicative of the presence of the sample.
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Carrasko Sunita
Jando Szilveszter
McCaffrey John T.
McLeod Ian C.
Neogen Corporation
Smith Zandra V.
Stock, Jr. Gordon J.
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