Patent · US Active

Optical lens with scratch-resistant anti-reflective layer

US8982466B2 · kind B2 · utility

13Cited by

1References

20Claims

0Family size

Assignee

Carl Zeiss Vision International GmbH · DE

Inventor

Andreas Neuffer · Asperg, DE

Key dates

Filing date	Sep 30, 2011
Grant date	Mar 17, 2015
Priority date	—
Expiry date	Oct 15, 2032

Classification

Technology area (CPC G)Physics
CPC primaryG02C2202/16
WIPO fieldOptics
WIPO sectorInstruments

Abstract

The present invention relates to an optical lens having a lens element produced of plastic, more particularly of plastic which is transparent in a visible spectral range, and having a coating comprising a plurality of layers, the plurality of layers comprising at least one high-refractive-index layer. Furthermore, a hardcoat layer is formed adjacent to the lens element, and a superhydrophobic layer concludes the coating in opposition to the lens element. The at least one high-refractive-index layer has a thickness of less than 40 nm, and the coating overall has a thickness of more than about 380 nm.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.