METHOD OF MANUFACTURING AN ELECTRO-ACTIVE LENS

Title:

METHOD OF MANUFACTURING AN ELECTRO-ACTIVE LENS

Document Type and Number:

WIPO Patent Application WO2004019078

Kind Code:

A3

Abstract:

A method of manufacturing an electro-active lens is disclosed. The lens is manufactured by providing a lens blank (10) having a front and back surface, a thickness, and an index of refraction. An electro-active element is placed on one of the front or back surfaces of the lens blank (20). A covering surface is then formed over the surface of the lens blank containing the electro-active element (30). In some embodiments, the electro-active lens may then be surfaced to provide a desired fixed optical power (1960) and edged to fit within a spectacles frame (1950).

Inventors:

BLUM RONALD D
KOKONASKI WILLIAM
DUSTON DWIGHT P

Application Number:

PCT/US2003/026290

Publication Date:

May 21, 2004

Filing Date:

August 20, 2003

Export Citation:

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Assignee:

E VISION LLC (US)

International Classes:

G02C7/02; G02F1/13; G02F1/1341; G02F1/29; (IPC1-7): G02F1/1335

Foreign References:

US4795248A

1989-01-03

Other References: