PROGRESSIVE SPECTACLE LENS WITH NEGLIGIBLE DYNAMIC DISTORTION
摘要
Described is a spectacle lens comprising a region (distance portion) designed for viewing at large distances and in particular "to infinity"; a region (near portion) designed for viewing at short distances and in particular "reading distances"; and a progressive zone disposed between the distance portion and the near portion, in which the power of the spectacle lens increases from a value at a distance reference point located in the distance portion to a value at a near reference point located in the near portion along a curve (principal line) veering towards the nose. The invention is rendered distinct by a feature, amongst others, according to which trajectories of motion fulfil specific conditions.
申请公布号
EP1277074(B1)
申请公布日期
2008.02.20
申请号
EP20010940191
申请日期
2001.04.25
申请人
RODENSTOCK GMBH
发明人
WELK, ANDREA;BAUMBACH, PETER;HAIMERL, WALTER;PFEIFFER, HERBERT;ESSER, GREGOR;ALTHEIMER, HELMUT;DORSCH, RAINER;ZIMMERMANN, MARTIN