Lens production method and process

Details Lens production method and process Lens production method and process

2006-10-17

2006-10-17

Nguyen, George (Department: 3723)

Abrading

Abrading process

Combined abrading

C451S042000, C451S043000, C451S044000

Reexamination Certificate

active

07121931

ABSTRACT:
A method for processing a first optical face and a second optical face of a lens, where a lens blank is positioned and gripped by a gripping device relying on reference datum indications rendering it possible to obtain topographic orientation for processing both faces of the lens, and wherein not more then one reference datum indication extends on a face of the lens.

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patent: 5972251 (1999-10-01), Shannon
patent: 6641466 (2003-11-01), Wallendorf et al.
patent: 6749377 (2004-06-01), Gottschald et al.

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