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:
Oct. 17, 2023
Filed:
Aug. 01, 2019
Schott Ag, Mainz, DE;
Jens Ulrich Thomas, Mainz, DE;
Thorsten Damm, Eltville am Rhein, DE;
Frank-Thomas Lentes, Bingen, DE;
Kurt Nattermann, Ockenheim, DE;
Schott AG, Heidenheim, DE;
Abstract
An optical layered composite includes: a substrate having a front face, a back face, a thickness dbetween the front face and the back face and a refractive index n; and a coating applied to the front face. The coating comprises one or more coating layers. For at least one wavelength λin the range from 390 nm to 700 nm, the coating satisfies one of the following criterion: n<n; or n>n, and nis a mean refractive index of the coating layers, weighted by thickness; do is a total thickness of the coating; thicknesses are determined in a direction perpendicular to the front face; and k=λ/4π.