Coating processes – Optical element produced – Transparent base
Patent
1973-07-18
1976-01-20
Martin, William D.
Coating processes
Optical element produced
Transparent base
65 18, 65 60, 350 96WG, 427163, 427167, 427193, 427223, 427255, 427402, 427419, C03C 1702, C03C 1704, G02B 514
Patent
active
039340619
ABSTRACT:
A method of producing a planar optical waveguide by applying to at least a portion of one flat surface of a substantially flat glass substrate having a predetermined desired index of refraction a first coating of glass having an index of refraction greater than that of said glass substrate. Thereafter a second coating of glass having an index of refraction less than that of the first coating of glass is applied over the exposed surface of the first coating of glass. The thickness of the first coating of glass being determined as a function of the highest mode order and the wavelength of light to be propagated within a waveguide having infinite width, and the indices of refraction of the substrate and each of the applied coatings.
REFERENCES:
patent: 2272342 (1942-02-01), Hyde
patent: 2326059 (1943-08-01), Nordberg
patent: 2877144 (1959-03-01), Ivensen
patent: 3212921 (1965-10-01), Pliskin
patent: 3386787 (1968-06-01), Kaplan
patent: 3408222 (1968-10-01), Navias
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patent: 3659915 (1972-05-01), Maurer
patent: 3659916 (1972-05-01), Marcatilli
patent: 3737292 (1972-01-01), Keck
Keck Donald B.
Schultz Peter C.
Corning Glass Works
Martin William D.
Patty, Jr. Clarence R.
Schmidt William H.
Zebrowski Walter S.
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