Process for transferring coatings onto a surface of a lens substrate with most precise optical quality
Patent Information
- Authority / Receiving Office
- US · United States
- Current Assignee / Owner
- ESSILOR INT CIE GEN DOPTIQUE
- Publication Date
- 2006-10-05
- Estimated Expiration
- Not applicable · inactive patent
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Abstract
Description
BACKGROUND OF THE INVENTION
[0001] 1. Field of the Invention
[0002] The present invention relates to an improved process or method for transferring at least one coating onto at least one geometrically defined surface of a lens substrate, which can be implemented in a short period of time without any risk of deformation of the lens substrate, which avoids the use of a liquid curable adhesive composition for adhesion of the coating to the lens substrate and results in the coating adhering to the lens substrate through an adhesive layer of uniform thickness.
[0003] 2. Description of Related Art
[0004] It is a common practice in the art to coat at least one main surface of a lens substrate, such as an ophthalmic lens or lens blank, with several coatings for imparting to the finished lens additional or improved optical or mechanical properties. These coatings are designated in general as functional coatings.
[0005] Thus, it is usual practice to coat at least one main surface of a lens su...