Corning Incorporated

David Dasher

E Robert Fretz, Jr

Ronald E Johnson

Mark Stephen Friske

Anthony R Olszewski

John W Nelson

David J Kerko

Carlton Maurice Truesdale

Robert John Locker

Frederick E Noll

Nikki J Russo

James Monroe Marlowe

Reba S Herndon

Jeffrey L Blackwell

A Renee Sutton

Michael E Derosa

In-line systems for and methods of measuring the moisture content of ceramic material within an extrusion system used to form ceramic articles are disclosed. One method includes arranging, relative to the extrusion system, at least one radio-frequency (RF) sensor system having an RF antenna, and generating through the RF antenna an RF field that resides substantially entirely within the ceramic material. The method also includes, in response to the RF field interacting with the ceramic material, generating in the RF sensor system a signal representative of a raw moisture-content measurement of the ceramic material. The method also includes generating calibration data by performing RF moisture-content measurements on samples of the ceramic material having different known moisture contents, and establishing a calibrated moisture-content measurement using the raw moisture-content signal and the calibration data. Both contact and non-contact systems and measurement methods are described.

In-line moisture-content measurement of ceramic materials in ceramic article manufacturing

This invention relates to production of high purity fused silica glass doped with titania using titanium chelates. Useful chelates include titanium acetylacetonate, and titanium ethyl acetoacetate among others.

Method of making titania-doped fused silica

An improved, laminated, ophthalmic lens structure, and method of producing the structure. The structure comprises two adjacent layers of dissimilar, organic plastic materials, either or both of which contain matter that tends to migrate. The improvement comprises a barrier layer that is intermediate the adjacent organic plastic layers; that is impermeable to migrating matter; and that is composed of a polyolefin polymeric material modified by the presence of acid or anhydride functional groups.

Laminated ophthalmic lens

A method of producing a glass-plastic, laminated, ophthalmic lens structure in a continuous operation. A thin, flexible, plastic adhesive layer is applied to a glass element to form a composite body that is inserted in a cylindrical gasket in such manner as to fit snugly and be sealed from the ambient. A monomeric formulation is flowed onto the adhesive layer and cured to form a laminated lens blank.

Ophthalmic lens method

An ophthalmic lens embodying an organic plastic lens member having a refractive index of at least 1.56 and being the cured product of a monomeric formulation. The formulation contains a resin monomer base, a curing agent selected from aromatic anhydrides, aromatic diamines, thioamides and thioamines, and a refractive index enhancing additive selected from alkyl or aromatic diols or thiols and transition metal alkoxides. The organic plastic lens member may be an integral, monofocal lens, or a segment embedded in a cavity in the front, convex surface of an organic plastic, major lens member having a lesser refractive index. The latter may have a thin, inorganic glass lens member adhered to its front, convex surface to produce a glass-plastic, laminated, multifocal lens structure.

High-index, organic lens member

Growing community of inventors

Corning, NY, United States of America

David Dasher