Optics: measuring and testing – Infrared and ultraviolet
Patent
1997-07-01
1999-10-12
Rosenberger, Richard A.
Optics: measuring and testing
Infrared and ultraviolet
359371, G02B 2106
Patent
active
059662042
ABSTRACT:
A near-intfrared microscope has a light source device for illumination for emitting near-infrared rays, an illuminating optical system for illuminating a specimen with illumination light from the light source device for illumination, and an observing optical system for observing the specimen. The light source device for illumination selectively produces an arbitrary wavelength in a wavelength region ranging from 600 to 900 nm. The illuminating optical system and the observing optical system include a contrast producing unit for yielding a contrast of the specimen. In this way, cells lying at a depth of at least 100 .mu.m below the surface of the specimen can be observed, and even when an ordinary objective lens is used in the near-infrared region, imaging performance is not affected.
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Olympus Optical Co,. Ltd.
Rosenberger Richard A.
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