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:
Dec. 28, 1993
Filed:
Oct. 13, 1992
Applicant:
Inventor:
Donald I Gonser, Lancaster, PA (US);
Assignee:
Den-tal-ez, Inc., Valley Forge, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F21V / ;
U.S. Cl.
CPC ...
362268 ; 362293 ; 362804 ;
Abstract
A color-correcting optical delivery system for a dental or medical operatory light in which hue is eliminated. Chromatic aberrations are corrected by canceling the diffractions in the system due to the different wavelengths of the various colors in the projected light.