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US 8,523,355 B2Granted
Method and device for measuring the curve of a spectacle frame
AssigneeAcep France
InventorJean-Philippe Sayag
Life of this patent
Estimating the term…
Abstract
The invention relates to a method for measuring the curve of a spectacle frame (4) comprising the following operations: determining the position of a first reference mark (18) defining the mid plane of the spectacle frame (4); determining the position of a second reference mark (20) defining the orientation of a spectacle lens holder relative to said mid plane; and measuring the angle between said first and second reference marks. The invention also relates to a device for carrying out the method.
Claims6
A device for measuring the curve of a spectacle frame, said device comprising:
- a first positioning element being adjustable on the spectacle frame and being provided with a first reference mark in order to define a mid plane of said spectacle frame, the first positioning element having a form of a substantially horizontal bridge, the bridge having ends, each end being provided with a first branch adapted to press against a front surface of the spectacle frame and a second branch adapted to press against a rear surface of the spectacle frame;
- and
- a second positioning element being adjustable on the spectacle frame and being provided with a second reference mark in order to define an orientation of a spectacle lens holder.
Dependencies are inferred from the claim text.