G - Physics – 02 – B
Patent
G - Physics
02
B
18/103, 73/59, 8
G02B 6/10 (2006.01) G01N 21/23 (2006.01) G01N 21/43 (2006.01) G02B 6/136 (2006.01) G01N 21/21 (2006.01)
Patent
CA 2023072
Abstract of the disclosure Polyimide waveguides as optical sensors The invention relates to a polyimide waveguide which is used as an optical sensor for the quantitative determina- tion of liquids in the vapor phase, as well as for the determination of NH3, "NH4OH", NO2 and N2O5. The polyimide waveguide is composed of a cover layer, one or two layers of a polyamide-imide or a perfluorinated polyimide and a substrate.
Fetherstonhaugh & Co.
Franke Hilmar
Hoechst Aktiengesellschaft
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