Binary optical spectrum analyzer

Details Binary optical spectrum analyzer Binary optical spectrum analyzer

1994-02-02

1995-10-24

McGraw, Vincent P.

Optics: measuring and testing

By dispersed light spectroscopy

356303, 356326, G01J 300

Patent

active

054614759

ABSTRACT:
Apparatus for analyzing a spectral signature, including: a light source; a spatial light modulator connected to the light source, the spatial light modulator modulating light from the light source in accordance with spatial features of the spectral signature; an optic system upon which modulated light from the spatial light modulator is incident, the optic system filtering the modulated light; a hologram illuminated with filtered, modulated light from the optic system, the hologram outputting an optical identification of the spectral signature; and a detector upon which the optical identification is incident, the detector detecting the optical identification.

REFERENCES:
patent: 3717412 (1973-02-01), Takuma et al.
patent: 5039210 (1991-08-01), Welstead et al.
Sheng et al, "Optical N.sup.4 Implementation of a Two Dimensional Wavelet Transform, " Optical Engineering, Sep. 1992, vol. 31, #9, pp. 1859-1863.

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