发明名称 |
Method for producing aspherical structure, and aspherical lens array molding tool and aspherical lens array produced by the same method |
摘要 |
A method for producing an aspherical structure according to the invention includes the steps of: forming a layer on a surface of a substrate so that the layer exhibits an etching rate distribution in a direction perpendicular to the surface of the substrate; forming a mask having a predetermined opening shape on the surface of the layer; and etching the layer to thereby form at least one aspherical concave portion. When each concave portion is used as a molding tool so that a resin with which the concave portion is filled is solidified and removed from the concave portion, an aspherical lens array can be formed accurately. <IMAGE> <IMAGE> <IMAGE> <IMAGE> <IMAGE> <IMAGE> <IMAGE> |
申请公布号 |
EP1329432(A1) |
申请公布日期 |
2003.07.23 |
申请号 |
EP20030000691 |
申请日期 |
2003.01.17 |
申请人 |
NIPPON SHEET GLASS CO., LTD. |
发明人 |
TSUNETOMO, KEIJI;HASHIMOTO, TAKAHIRO;NAGATA, HIDESHI;KITTAKA, SHIGEO;HAMANAKA, KENJIRO |
分类号 |
B29C43/02;B29D11/00;C03C15/00;C03C17/02 |
主分类号 |
B29C43/02 |
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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