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:
Jan. 04, 1994
Filed:
Sep. 14, 1992
Gary Long, Cincinnati, OH (US);
Arnold H Deutchman, Columbus, OH (US);
Laser Centers of America, Cincinnati, OH (US);
Abstract
A thin layer of a material having a refractive index that varies non-abruptly between the refractive indexes of a first element and a second element in an optical device significantly reduces Fresnel losses in transmitting light from the first element into the second element. The layer is readily created by either an ion beam mixing process or by an ion beam enhanced deposition (IBED) process, forming a region of non-abruptly varying refractive index in one of the elements at an interface therebetween. A selected material is thus securely bonded into the laser light-receiving element which may conveniently be made of a material such as YAG, silica, sapphire, zirconia, quartz, silicon, germanium, zinc sulfide or zinc selenide, depending on the application at hand. In another aspect of this invention, the tip element is provided with an additional layer over the first layer to provide added protection thereto.