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. 27, 1992
Filed:
Mar. 20, 1991
Applicant:
Inventor:
Takahisa Hayashi, Kyoto, JP;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B / ;
U.S. Cl.
CPC ...
359661 ; 359355 ; 359659 ; 359660 ;
Abstract
An objective lens system for use within a microscope includes a first to a fourth lenses which are spaced apart from an object side. The first lens is made of either quartz or fluorite, the second and the third lenses are made of quartz, while the fourth lens is made of fluorite. The system transmits ultraviolet and/or far ultraviolet light and correct chromatic aberration. The system is uncomplicated.