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:
Mar. 19, 2013
Filed:
May. 29, 2008
Michael J Cangemi, Victor, NY (US);
Horst Schreiber, Rochester, NY (US);
Jue Wang, Fairport, NY (US);
Michael J Cangemi, Victor, NY (US);
Horst Schreiber, Rochester, NY (US);
Jue Wang, Fairport, NY (US);
Corning Incorporated, Corning, NY (US);
Abstract
The invention is directed to single crystal alkaline earth metal fluoride optical elements having an adhesive, hermetic coating thereon, the coating being chemically bonded to the surface of the metal fluoride optical element with a bonding energy ≧4 eV and not merely bonded by van der Walls forces. The materials that can be used for coating the optical elements are selected from the group consisting of SiO, F—SiO, AlO, F—AlO, SiON, HfO, SiN, TiOand ZrO, and mixtures (of any composition) of the foregoing, for example, SiO; HfOand F—SiO/ZrO. The preferred alkali earth metal fluoride used for the optical elements is CaF. Preferred coatings are SiO, F—SiO, SiO/ZrOand F—SiO/ZrO.