Refractively scanned interferometer

Details Refractively scanned interferometer Refractively scanned interferometer

1986-02-19

1987-03-31

McGraw, Vincent P.

Radiant energy

Invisible radiant energy responsive electric signalling

Infrared responsive

356346, G01J 345

Patent

active

046545301

ABSTRACT:
An interferometer/spectroradiometer that uses a beamsplitter means for dividing an input beam into two separate beams and presents the resultant beams to a rotary refractive window from symmetrically oriented optical elements such that the optical path differences through the refractive window as it rotates are additive and non-linearities are subtracted. The beams are returned through the refractive window to the beamsplitter for dividing the input beam, where fringes are generated for application to appropriate detectors. The detector output is applied to Fourier transform computer equipment for digitizing and processing for presentation on a spectrum display device.

REFERENCES:
patent: 4165938 (1979-08-01), Doyle
patent: 4265540 (1981-05-01), Doyle
patent: 4286877 (1981-09-01), Clark
patent: 4329055 (1982-05-01), Schaefer et al.

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