Optics: measuring and testing – By dispersed light spectroscopy – With raman type light scattering
Patent
1996-09-19
1999-02-09
Font, Frank G.
Optics: measuring and testing
By dispersed light spectroscopy
With raman type light scattering
G01J 344
Patent
active
058701885
ABSTRACT:
An excitation beam from a laser is passed through a bandpass filter, and applied to a sample by a collimator lens. An optical adjusting part comprising a camera lens and a converging lens is provided for receiving scattered light from the sample, so that the camera lens receives the scattered light and converts the same to a parallel beam. The converging lens has chromatic aberration, and receives and converges the parallel beam from the camera lens. An inlet slit of a spectroscope is provided as an inlet port on a converging position by the converging lens. This inlet slit is a circular hole having a diameter of about 200 .mu.m. The inlet slit is arranged on a position for converging anti-Stokes-Raman scattered light through the chromatic aberration of the converging lens.
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Patent Abstracts of Japan, vol. 012, No. 156, May 13, 1988.
Dou Xiaoming
Ozaki Yukihiro
Uenoyama Harumi
Yamaguchi Yoshinori
Font Frank G.
Kyoto Dei-ichi, Kagaku Co. Ltd.
Smith Zandra V.
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