发明名称 |
PROGRESSIVE SPECTACLE LENS WITH TWO NON-SPHERICAL SURFACES, MORE PARTICULARLY TWO PROGRESSIVE SURFACES |
摘要 |
The invention relates to a progressive spectacle lens comprising two non-spherical surfaces, more particularly two progressive surfaces, which contribute to the enhancement of the effectiveness (addition add) of the long distance vision part to the reading distance part. The invention is characterized in that the sagittas zi = zi (x, y) of at least one (i) progressive surface (i=1,2) are selected in such a way that the sagittas (z) of the respective surface have predetermined values in the edge of the glass spectacles defined by yi = fi1 (x) for y = 0 or. Yi = fi2 (x) for y < 0 without this surface (i) or the other surface (j) having a curvature inversion serving to form a margin, etc. |
申请公布号 |
WO03079095(A2) |
申请公布日期 |
2003.09.25 |
申请号 |
WO2003DE00825 |
申请日期 |
2003.03.13 |
申请人 |
RODENSTOCK GMBH;HAIMERL, WALTER;PFEIFFER, HERBERT;ESSER, GREGOR;ALTHEIMER, HELMUT |
发明人 |
HAIMERL, WALTER;PFEIFFER, HERBERT;ESSER, GREGOR;ALTHEIMER, HELMUT |
分类号 |
G02C7/06;G02C7/02 |
主分类号 |
G02C7/06 |
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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