发明名称 |
Method for determining a contour data set of spectacle frame rim |
摘要 |
A method for determining a contour data set of a spectacle frame rim comprising the steps of: a) providing a plurality (N) of three dimensional measured points along a contour of a spectacle frame rim; b) calculating a plurality of best torus that fits P points chosen among the N measured points and where P is equal or more than 4; c) selecting the (T) points among the N measured points that deviate from one of the best torus more than a threshold value; and d) forming the contour data set with (N-T) three dimensional measured points where the T selected points of step c) are excluded from the list of three dimensional measured points of step a).
|
申请公布号 |
US8381408(B2) |
申请公布日期 |
2013.02.26 |
申请号 |
US20080810956 |
申请日期 |
2008.12.23 |
申请人 |
ESSILOR INTERNATIONAL (COMPAGNIE GENERALE D'OPTIQUE);DUBOIS FREDERIC;FRESON DAVID |
发明人 |
DUBOIS FREDERIC;FRESON DAVID |
分类号 |
G01B11/24;G01B5/20;G01B7/28 |
主分类号 |
G01B11/24 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|