The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 12, 1999
Filed:
Jul. 01, 1997
Katsuyuki Abe, Hachioji, JP;
Olympus Optical Co., Ltd., Tokyo, JP;
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.