Multiplex spectroscopy
OwnerReginald Tobiasinventor
Life of this patent
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Abstract
Analysis of energy emanating from a source having a focal plane by converting the energy from the source into modulated spectral components simultaneously distributed according to frequency along a flat field, using, for example, a modulator, and then detecting and demodulating the spectral components, for example by a fast Fourier transform or synchronous demodulator with a ruled grating interposable between the source and the detector and a linear variable bandpass filter interposable between the source and the detector.
Claims17
Apparatus for analyzing energy emanating from a source having a focal plane, which comprises:
- means at said focal plane for converting said energy from the source into modulated spectral components simultaneously distributed according to frequency along a flat field;
- and
- means for detecting and demodulating said spectral components.
Apparatus for analyzing energy emanating from a source having a focal plane, which comprises:
- means at said focal plane for converting said energy from the source into spectral components simultaneously distributed according to frequency along a flat field;
- and means for detecting said spectral components;
- wherein a linear variable bandpass filter is interposed between said source and said means for detecting said spectral components.
A method of analyzing energy emanating from a source, which comprises:
- (a) converting said energy from the source into spectral components distributed according to frequency along a flat field;
- and
- (b) detecting said spectral components;
- wherein said spectral components are modulated, further including
- (c) demodulating said spectral components.
The method of analyzing energy emanating from a source having a focal plane for said energy, which comprises
- illuminating said focal plane with light from said source;
- and
- recombining all wavelengths present at the focal plane into a single beam at an exit aperture.
The method of analyzing energy emanating from a source having a focal plane for said energy, which comprises
- illuminating said focal plane with light from said source;
- and
- placing a modulator such as a chopper wheel at the focal plane so that a set of apertures of width equal to an array pixel (single detector) is spaced in a row close together.
Dependencies are inferred from the claim text.