Coating processes – Electrical product produced – Integrated circuit – printed circuit – or circuit board
Patent
1973-02-22
1976-03-30
Corbin, John K.
Coating processes
Electrical product produced
Integrated circuit, printed circuit, or circuit board
350 96R, 427163, G02B 514
Patent
active
039470873
ABSTRACT:
A dielectric thin film optical transmission device in which a dielectric substrate has formed thereon a dielectric thin film of a refractive index larger than that of the substrate and the dielectric thin film has formed thereon in a desired pattern a dielectric layer of a refractive index smaller than that of the dielectric thin film and in which the dielectric thin film underlying the dielectric layer chiefly serves as a light waveguide to transmit light therethrough.
REFERENCES:
patent: 3465159 (1969-09-01), Stern
patent: 3537020 (1970-10-01), Anderson
patent: 3660673 (1972-05-01), Anderson
patent: 3795434 (1974-03-01), Ash
Marcatili, "Dielectric Rectangular Waveguide and Directional Coupler for Integrated Optics," The Bell System Technical Journal, Vol. 48, No. 7, Sept. 1969, pp. 2071-2102.
Furuta Hirosuke
Noda Hideki
Corbin John K.
Fujitsu Limited
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