Facetting area setting device and eyeglass lens processing...

Details Facetting area setting device and eyeglass lens processing... Facetting area setting device and eyeglass lens processing...

2008-06-10

2008-06-10

Rose, Robert (Department: 3723)

Abrading

Precision device or process - or with condition responsive...

By optical sensor

C451S005000, C451S043000

Reexamination Certificate

active

07384326

ABSTRACT:
A facetting area setting device for setting a facetting area so as to perform a facetting on an edge corner of an eyeglass lens which has been finished, includes: an input unit that inputs a target lens shape; a display unit that displays a front outline graphic based on the input target lens shape; a position setting unit that sets at least three points in the displayed front outline graphic; and an area setting unit that sets a facetting area on the basis of the input target lens shape and the set points. The area setting unit sets the facetting area by joining the set points with at least one of a straight line and a curved line.

REFERENCES:
patent: 2286886 (1942-06-01), Anderson
patent: 4503613 (1985-03-01), Yax
patent: 5333412 (1994-08-01), Matsuyama
patent: 5989102 (1999-11-01), Gottschald et al.
patent: 6478657 (2002-11-01), Shibata
patent: 6641460 (2003-11-01), Obayashi
patent: 6790124 (2004-09-01), Shibata

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