Device for interferential spectrometry with selective modulation

Details Device for interferential spectrometry with selective modulation Device for interferential spectrometry with selective modulation

1979-12-11

1982-03-23

Corbin, John K.

Optics: measuring and testing

By particle light scattering

With photocell detection

356351, G01B 902

Patent

active

043209734

ABSTRACT:
A highly luminous device for interferential spectrometry, comprises a birefringent beam-splitting interferometer combined with an optical system supplying localized fringes. As the beam-splitter element, it has at least one birefringent prism mounted along the optical axis of the device and producing an angular splitting, such as a Wollaston prism, of materials suitable for the construction of such prisms and selected as a function of birefringence and transparent over a wide range of wave lengths. The beam-splitter is placed between a polarizer and an analyzer of variable orientation to obtain flux modulation.

REFERENCES:
patent: 3146294 (1964-08-01), Koester
patent: 3868168 (1975-02-01), De Veer
patent: 3924952 (1975-12-01), Marechal
Francon, M., and S. Mallick, Polarization Interferometers; Wiley-Interscience, 1971, pp. 30-33.

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