Spectroscope

Details Spectroscope Spectroscope

1988-11-07

1990-05-01

Evans, F. L.

Optics: measuring and testing

By dispersed light spectroscopy

356328, 356334, G01J 302

Patent

active

049223097

ABSTRACT:
An optical waveguide having a detour is disposed at either or both of the light-receiving and light-emitting ends of a dispersion optical system in a spectroscope. Even though light being propagated through the optical waveguide has specified polarizing characteristics, the light is depolarized by passing through the optical waveguide and many times reflecting therein. Accordingly, unpolarized light not affected by the polarization selectivity of the dispersion optical system or the like can be emitted from the spectroscope.

REFERENCES:
patent: 4012147 (1977-03-01), Walrafen
patent: 4164373 (1979-08-01), Schuss et al.
patent: 4487504 (1984-12-01), Goldsmith
patent: 4556293 (1985-12-01), Burns et al.
Lishanskii et al., Journal of Applied Spectroscopy, vol. 29, No. 4, Oct. 1979, pp. 1269 and 1270.
LaSalle et al., Optics Communications, vol. 17, No. 3, Jun. 1976, pp. 325-327.

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