Optics: measuring and testing – For light transmission or absorption
Reexamination Certificate
2007-06-12
2007-06-12
Nguyen, Sang H. (Department: 2877)
Optics: measuring and testing
For light transmission or absorption
C356S005090, C356S005110, C250S343000
Reexamination Certificate
active
11133803
ABSTRACT:
A spectrometer and spectrometry method comprising modulating a light source with a carrier waveform multiplied by an envelope function, directing light from the light source through a sample region and to a photodetector, and demodulating current from the photodetector at a reference frequency. Also a method for computing a modulation waveform comprising specifying a target detection efficiency in a Fourier space, computing a response of a waveform that comprises a carrier wave multiplied by an envelope function, and modifying the envelope function using nonlinear optimization means to minimize a difference between the computed response and a predetermined target detection efficiency.
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Myers Jeffrey D.
Nguyen Sang H.
Peacock & Myers, P.C.
Southwest Sciences Incorporated
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