Optics: measuring and testing – By shade or color – With color transmitting filter
Reexamination Certificate
2006-11-28
2006-11-28
Evans, F. L. (Department: 2877)
Optics: measuring and testing
By shade or color
With color transmitting filter
C356S317000, C250S458100, C250S461100, C313S163000
Reexamination Certificate
active
07142303
ABSTRACT:
A micro-discharge optical source apparatus and a method and system which utilizes the apparatus to analyze a sample are provided. The apparatus includes a substrate and an anode electrode and a cathode electrode supported on the substrate. One of the electrodes, such as the cathode, is preferably a liquid electrode. The electrodes are spaced apart to define an inter-electrode gap therebetween. The apparatus further includes a voltage source for applying a voltage between the electrodes sufficient to generate a glow micro-discharge in the gap to cause a first emission having a first desired excitation spectrum. An optical element is integrated with the substrate to direct the first emission to travel along an optical path including an axis. In one embodiment, the system detects the direct fluorescence of a sample such as tryptophan and other amino acids. In another embodiment, the system detects fluorescence of dye-labeled biochemicals.
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Gianchandani Yogesh B.
Mitra Bhaskar
Que Long
Selvaganapathy Ponnambalam
Wilson Ghester G.
Brooks & Kushman P.C.
Evans F. L.
The Regents of the University of Michigan
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