发明名称 |
Förfarande för urval av i förväg kantade, på båda sidor färdiga glasögonglas med minimal tjocklek |
摘要 |
A description is given of a method for selecting pre-framed spectacle glasses of minimum central thickness, which have been finished on two sides, which have a predetermined pane form. The method according to the invention is distinguished by the combination of the following features: - in a first step the horizontal line is determined which runs through the centre of a rectangle which surrounds the pane form and touches the pane form with each side at at least one point and whose sides are arranged horizontally and vertically, - in a second step the circle is determined which circumscribes the pane form and whose centre is on the horizontal line, - in a third step the centre thickness is selected in such a manner that it does not fall below the minimum edge thickness on the circle in the case of a predetermined position of the optical centring point. |
申请公布号 |
SE504201(C2) |
申请公布日期 |
1996.12.02 |
申请号 |
SE19890000166 |
申请日期 |
1989.01.18 |
申请人 |
OPTISCHE WERKE G RODENSTOCK |
发明人 |
GUENTHER GUILINO;WALTER VON GELMINI;KLAUS WEHMEYER |
分类号 |
B24B13/005;G02C13/00;(IPC1-7):G02C13/00 |
主分类号 |
B24B13/005 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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