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:
Aug. 22, 2000
Filed:
Aug. 07, 1998
Applicant:
Inventors:
Assignee:
Nikon Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F21V / ;
U.S. Cl.
CPC ...
359361 ; 359358 ; 359359 ; 313112 ; 313635 ; 355 71 ; 362255 ; 362293 ;
Abstract
An illuminating apparatus which comprises a light source, an optical system for condensing light emitted from the light source and illuminating an object with the condensed light, and an optical member which absorbs light having a wavelength from 260 to 340 nm among the light emitted from the light source, wherein the optical member is made of glass or crystalline material to which metal is doped.