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:
Dec. 31, 2013
Filed:
Oct. 08, 2009
Michael David Harris, Horseheads, NY (US);
Christopher Morton Lee, Corning, NY (US);
Lawrence George Mann, Painted Post, NY (US);
Mike Xu Ouyang, Painted Post, NY (US);
Michael David Harris, Horseheads, NY (US);
Christopher Morton Lee, Corning, NY (US);
Lawrence George Mann, Painted Post, NY (US);
Mike Xu Ouyang, Painted Post, NY (US);
Corning Incorporated, Corning, NY (US);
Abstract
Multilayer anti-reflective coatings having four or more layers are disclosed. In one aspect, the multilayer anti-reflective coating comprises a first layer having a refractive index n, where n<1.4, and an optical thickness of (0.25±5%) λnm; a second layer adjacent to the first layer, the second layer having a refractive index n, where n≧1.8, and an optical thickness of (0.5±5%) λnm; a third layer adjacent to the second layer, the third layer having a refractive index n, where 1.4≦n<1.6, and an optical thickness of (0.1±5%) λnm; and a fourth layer adjacent to the third layer, the fourth layer having a refractive index n, where n≧1.8, and an optical thickness of (0.05±10%) λnm; where λis a wavelength in the visible light range.