Method of beveling an ophthalmic lens blank, machine...

Details Method of beveling an ophthalmic lens blank, machine... Method of beveling an ophthalmic lens blank, machine...

2006-11-29

2008-11-18

Shechtman, Sean P (Department: 2121)

Data processing: generic control systems or specific application

Specific application, apparatus or process

Product assembly or manufacturing

C700S172000, C700S182000, C451S005000, C451S043000, C351S177000

Reexamination Certificate

active

07454264

ABSTRACT:
The present invention is directed to a machine programmed to edge an ophthalmic lens blank. The machine includes an edger device for forming a bevel in a peripheral edge of the lens blank, a central processing unit operably associated with the edger device for controlling operation thereof, and a computer program stored on a medium in communication with the central processing unit. The computer program includes a first instruction set operably causing the edger device to form a bevel in a peripheral edge of a lens blank. A second instruction set operably causes the edger device to form a step in the peripheral edge intermediate an apex of the bevel and an interface between the peripheral edge and a major surface of the lens blank. A method of controlling an edger device for edging an ophthalmic lens blank and a computer program are also disclosed.

REFERENCES:
patent: 6099383 (2000-08-01), Mizuno et al.
patent: 6203409 (2001-03-01), Kennedy et al.
patent: 6547642 (2003-04-01), Hatano
patent: 6623339 (2003-09-01), Igarashi et al.
patent: 6751522 (2004-06-01), Okada et al.
patent: 2006/0083596 (2006-04-01), Gerding
patent: WO 95/00292 (1995-01-01), None

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