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:
Aug. 05, 2003
Filed:
Nov. 07, 2001
Hiromi Iwamoto, Osaka, JP;
Hirokuni Nanba, Osaka, JP;
Sumitomo Electric Industries, Ltd., Osaka, JP;
Abstract
The present invention provides an infrared laser optical element, in which a dense optical thin film with a low laser absorption and high moisture resistance is formed on the surface thereof, and a manufacturing method for the same. In this infrared laser optical element, the main surface of the optical substrate is smoothed, a BaF film formed on said main surface thereof and then a ZnSe film formed on said BaF film. The smoothing treatment for the main surface of the optical substrate is carried out by irradiating Xe gas ion beams. The BaF and the ZnSe films formed on said BaF film are formed on the main surface of the optical substrate, which has been smoothed, by Xe gas ion assisted vapor deposition. Superior performance can be achieved if the series of treatments are carried out under the specified conditions.