| 摘要 |
<p>The invention concerns a method of surfacing a surface of a spectacle lens, comprising a step of determining a fixed rotation speed (Vrot) of said lens based on geometric characteristics of said surface, characterised in that the step of determining the rotation speed (Vrot) comprises the following steps: generating (102), based on the geometric characteristics of said surface (12), a file of geometric altitude values of said surface, said file being centred 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 said surface; deducing (107) the rotation speed (Vrot) from said value of the greatest difference (MaxHk) in geometric altitude values on said surface and from a geometric value of the cylinder at a predetermined far-vision control point.</p> |
