发明名称 |
Method for minimising the maximum thickness of monofocal ophthalmic lenses and ophthalmic lens with refractive index gradient obtained by application of this method. |
摘要 |
<p>This is a lens having spherical concave and convex surfaces and a variation of index.
<??>According to the invention, the law of variation of the refractive index is such that, in absolute value, the refractive power (PO) of the lens is significantly greater than its geometrical power (PG), however the aberrations are held within suitable limits.
<??>Application to correcting ophthalmic lenses.
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申请公布号 |
EP0340090(A1) |
申请公布日期 |
1989.11.02 |
申请号 |
EP19890401153 |
申请日期 |
1989.04.24 |
申请人 |
ESSILOR INTERNATIONAL CIE GENERALE D'OPTIQUE |
发明人 |
BONBON, EMMANUEL;MERCIER, JEAN-LOUIS |
分类号 |
G02B3/00;G02C7/02 |
主分类号 |
G02B3/00 |
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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