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:
Jan. 15, 2002
Filed:
Jan. 27, 2000
Applicant:
Inventor:
Yasuo Yonezawa, Zushi, JP;
Assignee:
Nikon Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B 2/102 ; G02F 1/33 ;
U.S. Cl.
CPC ...
G02B 2/102 ; G02F 1/33 ;
Abstract
A Galileo type stereomicroscope permits an observer to change its eye-level by varying a space between an objective lens and a pair of a focal variable magnification lenses. The Galileo type stereomicroscope satisfies following condition: Z>f /3, where Z denotes a variable range of the eye-level and f denotes a focal length of an objective lens to be used. The objective lens for the Galileo type stereomicroscope keeps imaging quality up to a periphery of an image field while the eye-level is changed.