Optics: measuring and testing – By dispersed light spectroscopy – With aperture mask
Patent
1997-04-16
1998-09-29
Font, Frank G.
Optics: measuring and testing
By dispersed light spectroscopy
With aperture mask
356328, G01J 304, G01J 320
Patent
active
058152610
ABSTRACT:
A spectrometer that determines a spectral correlation between an optical signal and a reference spectra over a broad spectral range while maintaining a relatively high resolution. The spectrometer uses a mask that has high resolution slits at wavelengths corresponding to the reference spectra. Relative oscillatory movement is induced between the mask and the imaged spectra of the optical signal is induced and the light passing through the slits is collected by an optical sensor. A lock-in amplifier monitors a signal from the optical sensor as well as a signal representative of the oscillatory movement and determines a correlation between them.
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Brooks Neil H.
Jensen Torkil H.
Naumenko Nicolae N.
Tugarinov Sergey N.
Font Frank G.
General Atomics
Smith Zandra V.
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