LENS FOR EYEGLASSES

An aspect of the present invention relates to an eyeglass lens comprising a coating through a hardcoat layer over a lens substrate, wherein the coating comprises a laminate structure of adjacent layers in the form of a first vapor deposition layer formed by vapor deposition with a vapor deposition s...

Full description

Saved in:
Bibliographic Details
Main Authors ADACHI, MAKOTO, OGAWA, NAOMI, KAMURA, HITOSHI
Format Patent
LanguageEnglish
French
German
Published 10.09.2014
Subjects
CONTACT LENSES
LAYERED PRODUCTS
LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PERFORMING OPERATIONS
PHYSICS
SPECTACLES
SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURESAS SPECTACLES
TRANSPORTING
Online AccessGet full text

Cover

More Information
Summary:An aspect of the present invention relates to an eyeglass lens comprising a coating through a hardcoat layer over a lens substrate, wherein the coating comprises a laminate structure of adjacent layers in the form of a first vapor deposition layer formed by vapor deposition with a vapor deposition source comprising a main component in the form of SiO 2 and a second vapor deposition layer formed by vapor deposition with a vapor deposition source comprising a main component in the form of Ta 2 O 5 or ZrO 2 the first vapor deposition layer has a nanoindentation hardness of equal to or higher than 5.0 GPa and a compressive stress of equal to or lower than 600 MPa, and the second vapor deposition layer has a nanoindentation hardness of equal to or higher than 7.5 GPa and a compressive stress of equal to or lower than 350 MPa.
Bibliography:Application Number: EP20120845566