C - Chemistry – Metallurgy – 03 – B
Patent
C - Chemistry, Metallurgy
03
B
C03B 37/018 (2006.01) C03B 37/014 (2006.01)
Patent
CA 2141170
In a method for forming a preform from which an optical fiber can be drawn, successive layers of matter (24, 28) are deposited by vapour deposition on a rotating cylindrical body (10) which is traversed by a heat source (15). For the deposition of at least two successive layers (24, 28), a rate of rotation of the body is selected so as to generate in one of said layers a surface profile different to a surface profile generated in the other said layer.
Prysmian Cables & Systems Limited
Smart & Biggar
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