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:
Jun. 28, 1994
Filed:
Dec. 03, 1992
Applicant:
Inventors:
Joseph M Wahl, Shirley, MA (US);
Randal W Tustison, Lexington, MA (US);
Thomas Y Wong, Needham, MA (US);
Assignee:
Raytheon Company, Lexington, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09D / ; C09D / ; C01G / ;
U.S. Cl.
CPC ...
1062863 ; 1062866 ; 423275 ; 4235661 ; 427161 ;
Abstract
A method for increasing the optical transmission characteristics of zinc sulfide in the visible and infrared portions of electromagnetic spectrum is described. Materials such as metals and, in particular, transition metals are diffused through the zinc sulfide material over a duration of time sufficient to cause the material to turn substantially water clear and substantially colorless.