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:
Apr. 12, 1994
Filed:
Mar. 30, 1992
Olympus Optical Co., Ltd., Tokyo, JP;
Abstract
A stereomicroscope comprising a pair of observation systems each comprising an objective lens and an eyepiece lens, a pair of light sources disposed above the objective lens for emitting a pair of light beams through a pair of beam splitters into the observation systems coaxially therewith, pairs of polarizers disposed on the side of the eyepiece lenses and the side of the light sources respectively so as to have polarizing surfaces perpendicular to each other, a quarter wavelength plate interposed between the objective lens and a sample to be observed, and a pair of light beam deflecting members disposed between the beam splitters and the objective lens. The polarizers disposed on the side of the eyepiece lenses are removable from optical paths and eyepiece tubes are arranged with the polarizers disposed on the side of the eyepiece lenses interposed between the eyepiece tubes and an intermediate tube containing the pair of light beam deflecting members and the polarizers disposed on the side of the eyepiece lenses. This stereomicroscope permits locating eye points thereof at low positions close to microscopists and quickly switching microscopic modes from one to another.