Method of manufacturing a planar optical component

Details Method of manufacturing a planar optical component Method of manufacturing a planar optical component

1988-06-22

1990-06-05

Schor, Kenneth M.

Glass manufacturing

Processes

With chemically reactive treatment of glass preform

65 182, 156645, 156656, 156657, 1566611, 156663, C03C 1500, C03C 17245

Patent

active

049310771

ABSTRACT:
Grooves are etched in a glass substrate, using a metallic mask, after which the substrate is coated with a layer of glass having a refractive index which is higher than that of the substrate, the groove being filled completely. Excess glass is removed, the metallic mask being used as a stop layer and a protective layer being provided at the location of the filled grooves. Excess glass is removed at the location of the grooves by means of polishing so that a high accuracy as regards depth can be obtained.

REFERENCES:
patent: 4632728 (1986-12-01), Kawakami

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