Eyeglass lens processing apparatus

Abrading – Precision device or process - or with condition responsive... – Computer controlled

Reexamination Certificate

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C451S042000

Reexamination Certificate

active

07125314

ABSTRACT:
An eyeglass lens processing apparatus for processing a lens to fit the lens into a rim, includes: an edge measurement portion that measures a path of an edge position of the chucked lens based on a 2-D outline shape is a projection shape of the rum in its warp direction and a layout of the optical center of the chucked lens; and an arithmetic operation portion that obtains an inclination angle of the edge path or a temporary bevel path obtained based on the edge path with respect to a center axis, obtains a corrected 2-D outline shape which is a projection shape onto a plane perpendicular to the center axis based on the inclination angle and the 2-D outline shape, and obtains a final bevel path to form a bevel in the periphery of the lens chucked at the optical center based on the corrected 2-D outline shape.

REFERENCES:
patent: RE35898 (1998-09-01), Shibata et al.
patent: 6220926 (2001-04-01), Mizuno
patent: 6325700 (2001-12-01), Mizuno et al.
patent: 6328628 (2001-12-01), Mizuno et al.
patent: 6350190 (2002-02-01), Matsuyama
patent: 6478657 (2002-11-01), Shibata
patent: 6702653 (2004-03-01), Shibata
patent: 6790124 (2004-09-01), Shibata
patent: 6942542 (2005-09-01), Shibata
patent: 1 591 199 (2005-11-01), None

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