METHOD OF SURFACING A SURFACE OF A SPECTACLE LENS

A method of surfacing a surface of a spectacle lens, includes a step of determining a fixed rotation speed (Vrot) of the lens based on geometric characteristics of the surface, wherein the step of determining the rotation speed (Vrot) includes the following steps: generating (102), based on the geom...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	BULTEZ, XAVIER
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	CONTROL OR REGULATING SYSTEMS IN GENERAL CONTROLLING DRESSING OR CONDITIONING OF ABRADING SURFACES FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS FUNCTIONAL ELEMENTS OF SUCH SYSTEMS GRINDING MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS ORELEMENTS PERFORMING OPERATIONS PHYSICS POLISHING REGULATING TRANSPORTING
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Beschreibung
Zusammenfassung:	A method of surfacing a surface of a spectacle lens, includes a step of determining a fixed rotation speed (Vrot) of the lens based on geometric characteristics of the surface, wherein the step of determining the rotation speed (Vrot) includes the following steps: generating (102), based on the geometric characteristics of the surface (12), a file of geometric altitude values of the surface, the file being centered on a zero geometric altitude value at a predetermined reference point; determining (103) a value representative of the greatest difference (MaxHk) in geometric altitude values on the surface; deducing (107) the rotation speed (Vrot) from the value of the greatest difference (MaxHk) in geometric altitude values on the surface and from a geometric value of the cylinder at a predetermined far-vision control point.