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. 07, 2010
Filed:
Dec. 18, 2007
Ralph Korenstein, Framingham, MA (US);
Patrick K. Hogan, Andover, MA (US);
John S. Mccloy, Tucson, AZ (US);
Charles B. Willingham, Framingham, MA (US);
Ralph Korenstein, Framingham, MA (US);
Patrick K. Hogan, Andover, MA (US);
John S. McCloy, Tucson, AZ (US);
Charles B. Willingham, Framingham, MA (US);
Raytheon Company, Waltham, MA (US);
Abstract
A method of treating zinc sulfide transmissive bodies includes using the same metal layer to treat multiple transmissive bodies, catalyzing the recrystallization of the bodies to remove defects from the bodies and forming multispectral zinc sulfide. The metal layer is brought into contact with one of the transmissive bodies. The transmissive body and the metal layer are then subjected to elevated temperature and pressure. The metal layer may include any of a variety of suitable metals, such as platinum, cobalt, silver, nickel, and/or copper. The metal layer may be a foil that is wrapped around the transmissive body. Alternatively the metal layer may be a rigid metal piece, for example being machined to fit the shape of the transmissive bodies. The reuse of the metal layer to treat multiple transmissive bodies reduces the cost of treating the transmissive bodies.