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. 10, 2020
Filed:
Oct. 16, 2015
Dow Corning Toray Co., Ltd., Tokyo, JP;
Dow Corning Corporation, Midland, MI (US);
Christopher S. McMillan, Midland, MI (US);
Kazutaka Mori, Kagawa, JP;
Hiroaki Yoshida, Chiba, JP;
Shin Yoshida, Chiba, JP;
Dow Toray Co., Ltd., Tokyo, JP;
Dow Silicones Corporation, Midland, MI (US);
Abstract
The present invention provides an optical member comprising a silicone material having excellent antifouling property while having good light transmittance, heat resistance, and strength, and an optical semiconductor device and illumination apparatus having excellent antifouling property. The present invention is an optical member comprising a silicone material containing a fluorinated surface, the proportion of F atoms being from 0.1 to 45 at % and/or the ratio of F atoms relative to C atoms being from 0.01 to 1.00 in the atomic composition percentage according to X-ray photoelectron spectroscopy (XPS) of the fluorinated surface.