发明公开
- 专利标题： VERFAHREN ZUR HERSTELLUNG EINES BRILLENGLASES UNTER BERÜCKSICHTIGUNG DER OPTIMALEN, INDIVIDUELLEN PROGRESSIONSLÄNGE
- 专利标题（英）： Method for the production of a spectacle glass taking into account the optimum individual length of progression
- 专利标题（中）： 用于生产眼镜片在优化，个人渐变长度的光
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申请号： EP02742703.8申请日： 2002-04-30
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公开(公告)号： EP1384106A2公开(公告)日： 2004-01-28
- 发明人: DORSCH, Rainer
- 申请人： Optische Werke G. Rodenstock
- 申请人地址： Isartalstrasse 43 80469 München DE
- 专利权人： Optische Werke G. Rodenstock
- 当前专利权人： Optische Werke G. Rodenstock
- 当前专利权人地址： Isartalstrasse 43 80469 München DE
- 代理机构： Müller-Boré & PartnerPatentanwälte
- 优先权： DE10121133 20010430
- 国际公布： WO2002088826 20021107
- 主分类号： G02C7/02
- IPC分类号： G02C7/02
摘要：
Disclosed is a method for determining the optimum individual length of progression of a progressive lens using the measured distance between the vertex of the cornea and a pre-adapted spectacle frame. The invention is characterized by the following steps: a) measurement of the individual distance (HSA) between the vertex of the cornea and a pre-adapted spectacle frame; b) measurement of the individual distance between a distant reference point BF and a centering cross ZK; c) determination of the optimum and individual length of progression (Lopt) according to the following formula: Lopt = 0.63 * (HSA+ 13.5 mm) + d(BF, ZK).
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