Target lens shape measuring apparatus, eyeglass lens...

Details Target lens shape measuring apparatus, eyeglass lens... Target lens shape measuring apparatus, eyeglass lens...

2007-11-13

2007-11-13

Bahta, Kidest (Department: 2125)

Data processing: generic control systems or specific application

Specific application, apparatus or process

Product assembly or manufacturing

C451S005000

Reexamination Certificate

active

11119393

ABSTRACT:
A method of processing an eyeglass lens includes: a first step of obtaining an actual three-dimensional target lens shape from a rim of an eyeglass frame; a second step of obtaining a circumferential length of the actual three-dimensional target lens shape and a two-dimensional target lens shape based on the actual three-dimensional target lens shape; a third step of transmitting at least the two-dimensional target lens shape without transmitting the circumferential length of the actual three-dimensional target lens shape; a fourth step of obtaining a circumferential length of a three-dimensional target lens shape restored based on the transmitted two-dimensional target lens shape; a fifth step of obtaining a bevel path having a circumferential length that substantially accords with the circumferential length of the restored three-dimensional target lens shape; and a sixth step of forming a bevel on a peripheral edge surface of the lens based on the obtained bevel path.

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patent: 6250989 (2001-06-01), Mizuno
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patent: 6702653 (2004-03-01), Shibata
patent: 6-74750 (1994-03-01), None

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