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:
Sep. 01, 1992
Filed:
Mar. 20, 1991
Applicant:
Inventor:
Takahisa Hayashi, Kyoto, JP;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B / ;
U.S. Cl.
CPC ...
359355 ; 359350 ; 359658 ; 359659 ;
Abstract
An objective lens system for use within a microscope includes six lenses which are spaced apart from an object side. The first, the third and the fifth lenses are made of quartz, the fourth and the sixth lenses are made of fluorite, while the second lens is made of either quartz or fluorite. The system transmits ultraviolet and/or far ultraviolet light is simply constructed and corrects chromatic aberration.