Multiplex spectroscopy
OwnerReginald Tobiasinventor
Life of this patent
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Abstract
Method and apparatus for analyzing energy emanating from a source by converting energy from the source into spectral components distributed according to frequency along a flat field, combining the spectral components into a beam, detecting the beam which combines the spectral components and demodulating the spectral components.
Claims17
Apparatus for analyzing energy emanating from a source, which comprises
- chopper modulator means comprising an apertured, rotatable member with apertures proportioned to generate sinusoidal signals for converting energy from said source into spectral components distributed according to frequency along a flat field;
- means for combining said spectral components into a beam;
- means for detecting said beam combining said spectral components;
- and
- means for demodulating said spectral components.
A method of using an optical system, characterized by reversibility and having a focal plane, for analyzing energy emanating from a source, which comprises using the reversibility of said optical system and illuminating said focal plane with homogeneous, broad-band light from said source;
- further including placing an apertured modulator at said focal plane, with said modulator having a radius and a set of apertures of width equal to an array pixel (single detector) spaced in an array detector row, and further providing a different number of apertures per revolution at different radial positions as said modulator rotates.
A method of using an optical system, characterized by reversibility and having a focal plane, for analyzing energy emanating from a source, which comprises using the reversibility of said optical system and illuminating an apertured chopper at said focal plane with homogeneous, broad-band light from said source;
- further including harmonic avoidance by structuring each chopper aperture to generate a pure sine wave as it passes over an associated focal plane aperture.
Dependencies are inferred from the claim text.