Corning Incorporated

Corning Glass Works

John W Nelson

Anthony R Olszewski

David Dasher

E Robert Fretz, Jr

Ronald E Johnson

Linda Ruth Pinckney

David J Kerko

Josef C Lapp

Mark Stephen Friske

Peter L Bocko

Leslie E Hampton

Frederick E Noll

Meryle D Adler

Nikki J Russo

Harold G Shafer, Jr

Paul I Kingsbury

Peter J Adair

Reba S Herndon

Carolyn K Schad

Michael P Hobczuk

A method for precompacting glass sheets for use in flat panel displays, particularly those which utilize polycrystalline silicon. The glass is exposed to a temperature and pressure and for a period of time sufficient to precompact the glass sheet an amount necessary to make the glass sheet suitable for use in a flat panel display which uses polysilicon.

Method for low temperature precompaction of glass

A method and apparatus for imparting a predetermined contour to an ophthalmic glass lens. The method comprises positioning a forming manifold in the base of a reshaping chamber, the upper surface of the manifold having a surface contour that is the reverse of the bottom contour surface of the reshaped lens, positioning the lens blank in the chamber, heating the lens blank to a temperature at which the blank deforms, and establishing a continuous, lateral flow of gas on the upper surface of the forming manifold whereby the glass is supported while it sags to the desired shape. The apparatus comprises a reshaping chamber, a source of heat to bring a lens blank to its deforming temperature, a forming manifold having an upper surface contour that is the reverse of the desired contour on the lower surface of the reshaped lens blank, and means to supply a continuous, lateral flow of gas on the upper surface of the manifold whereby the glass blank is supported while it deforms to the desired shape.

Reshaping a glass lens blank suspended on a flow of gas

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

An apparatus and method for forming a cavity in a rigid, organic plastic body comprises an abrading tool mounted on a carrier, an air spindle for imparting a rotary motion to the tool, and a second air spindle on which the tool carrier is mounted and which has a force applied to it to move the tool through an arc that passes through the plastic body.

Cavity forming in plastic body

This invention is directed to lead-free and, where desired, cadmium-free frits for glazes and enamels, said frits consisting essentially, in mole percent on the oxide basis, of

Lead-free glasses for glaze materials

The instant invention relates to the development of an embedment material suitable for use in heat treating glass castings to convert them into glass-ceramic articles, whereby the shrinkage customarily experienced resulting from densification of the casting during conversion to a glass-ceramic is minimized and sound glass-ceramic articles of tight dimensional tolerances can be produced. The inventive embedment materials will:

Embedding material useful in preparing glass-ceramic products

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Painted Post, NY, United States of America

John W Nelson