Corning Incorporated

Thomas Michael Zajicek

Christopher William Drewnowski

Nicholas Ryan Wheeler

Michael Thomas Gallagher

Nicholas James Smith

Charles Thomas McLaren

Xinghua Li

Michael Fischer

Mardochee Reveil

Timothy Evan Dimond

An apparatus for continuous electro-thermal poling of glass or glass ceramic material, includes a lower support conveying and contacting electrode structure, an upper contacting electrode structure positioned above the lower support structure, and one or more DC bias voltage sources connected to one or both of the upper contacting structure and the lower support structure. A process for continuous electro-thermal poling of glass or glass ceramic sheets or substrates includes heating the sheet or substrate, feeding the sheet or substrate continuously or continually, while applying a DC voltage bias, and cooling the sheet or substrate to within 0-30° C. of ambient temperature.

High throughput electro-thermal poling

A glass substrate according to one or more embodiments is disclosed. The glass substrate includes an alkali-containing bulk, at least one first alkali-depleted region, and at least one second alkali-depleted region. The alkali-containing bulk has a first surface and a second surfaces with the first and second surfaces opposing one another. The at least one first alkali-depleted region extends into the alkali-containing bulk from the first surface. The at least one second alkali-depleted region extends into the alkali-containing bulk from the second surface. The first alkali-depleted region and the second alkali-depleted region are amorphous and have a substantially homogenous composition. The first alkali-depleted region in some embodiments is a first alkali-depleted surface layer that extends across the alkali-containing bulk. The first alkali-depleted region in some embodiments is plurality of first alkali-depleted regions that are spaced apart from one another.

Glass with modified surface regions on opposing sides and methods and apparatuses for forming the same via electro-thermal poling

An apparatus for continuous electro-thermal poling of glass or glass ceramic material, includes a lower support conveying and contacting electrode structure, an upper contacting electrode structure positioned above the lower support structure, and one or more DC bias voltage sources connected to one or both of the upper contacting structure and the lower support structure. A process for continuous electro-thermal poling of glass or glass ceramic sheets or substrates includes heating the sheet or substrate, feeding the sheet or substrate continuously or continually, while applying a DC voltage bias, and cooling the sheet or substrate to within 0-30&#xb0; C. of ambient temperature.

A apparatus for making a three-dimensional object (glass, glass ceramic or ceramic) that includes: a gripping fixturehaving a grip surface or a pedestalhaving a build surface, the grip or build surface configured to hold an end of a contiguous, preformed material, such as a fiber or a ribbon; a feed systemhaving a feed outletpositioned above the grip or build surface, the feed system configured to feed the contiguous, preformed material into a build zone between the feed outlet and the grip or build surface; and a laser delivery systemarranged to direct at least one laser beam through the furnaceand into the build zone to form a hot spotin the build zone; and a positioning systemarranged to effect relative motion between the grip or build surface and the feed outlet. In some implementations, the apparatus for making a 3D object can also include a furnaceenclosing the build zone and the feed outlet.

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Big Flats, NY, United States of America

Thomas Michael Zajicek