发明名称 |
METHOD OF MANUFACTURING A GRATING AND APPLICATION OF THE MANUFACTURED GRATING |
摘要 |
The invention relates to a method of manufacturing an optical grating from a body having a surface which is provided with equidistant grooves. In order to obtain cheap and deformation-resistant gratings, according to the invention a surface of a substrate is provided with a number of layers of substantially equal thicknesses. The etching rates of the layers (in a given etchant) increase substantially proportionally to the number of the layer. A cross-sectional surface of the layers is then exposed to the etchant to form the surface with the grooves. |
申请公布号 |
DE3472013(D1) |
申请公布日期 |
1988.07.14 |
申请号 |
DE19843472013 |
申请日期 |
1984.11.13 |
申请人 |
N.V. PHILIPS' GLOEILAMPENFABRIEKEN |
发明人 |
KHOE, GIOK DJAN;NICIA, ANTONIUS JOSEPHUS ADRIANUS |
分类号 |
G02B5/18;(IPC1-7):G02B5/18 |
主分类号 |
G02B5/18 |
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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