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 portions an aspherical lens array can be formed accurately.
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申请公布号 |
US7329372(B2) |
申请公布日期 |
2008.02.12 |
申请号 |
US20030346053 |
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 |
B29D11/00;B29C43/02;C03C15/00;C03C17/02 |
主分类号 |
B29D11/00 |
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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