Method of manufacturing a grating

Details Method of manufacturing a grating Method of manufacturing a grating

1984-11-13

1986-09-09

Powell, William A.

Adhesive bonding and miscellaneous chemical manufacture

Delaminating processes adapted for specified product

Delaminating in preparation for post processing recycling step

156653, 156657, 1566591, 35016222, 427 93, B44C 122, C03C 1500, C03C 2506

Patent

active

046107576

ABSTRACT:
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.

REFERENCES:
patent: 3542453 (1970-11-01), Kantor

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