| 摘要 |
PROBLEM TO BE SOLVED: To provide an illuminating light radiation mechanism for an infrared microscope, which realizes accurate visible light observation without using a complicated optical system. SOLUTION: Instead of a conventional Cassegrain mirror for use in an infrared microscope, a parabolic mirror 6 is installed behind a convex mirror 4 constituting a Cassegrain mirror, and light of a illuminating light source 10 is radiated to the parabolic mirror 6 through an optical fiber 7, and a surface of a sample 8 is illuminated by reflected light from the parabolic mirror 6. Illuminating light can be made into parallel rays of luminous flux by putting the front end of the optical fiber 7 in a focus position of the parabolic mirror 6. Since light is repeatedly reflected in the optical fiber 7, uniform illuminating light can be obtained. Uniform illumination can be obtained by a simpler optical system than that in a conventional method of providing the illuminating light source 10 within a microscope, and accurate sample observation is possible. COPYRIGHT: (C)2006,JPO&NCIPI
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