Corning Incorporated

Other

Corning S.a.

Yves Andre Brocheton

Nicholas Francis Borrelli

Dilip K Chatterjee

Douglas Munroe Beall

Gregory A Merkel

Steven Bolaji Ogunwumi

Michel Prassas

Daniel L Ricoult

Marie J Comte

Alexandre M Mayolet

Michele Fredholm

Photochromic glasses

A glass fiber sensor for measuring an electrical current, the glass fiber core being a heavy flint glass having its composition modified by the addition to the glass composition of a source of a selected rare earth ion, whereby the Verdet constant value of the glass is reduced without unduly increasing the value of the photoelastic coefficient.

Glass fiber current sensor and method of use therefor

Brown glass which absorbs ultraviolet radiation

High-index glasses that absorb UV radiation

This invention is directed to the production of glasses useful for ophthalmic applications which exhibit excellent resistance to the development of coloration upon being exposed to x-radiation and excellent resistance to the development of solarization. The glass compositions are essentially free of lead and consist essentially, in weight percent, of

Colorless ophthalmic glasses

This invention is directed to photochromic glasses which darken to a brown coloration upon exposure to actinic radiation, which glasses have a refractive index of about 1.6, an Abbe number between 42-47, a density less than 2.82 g/cm.sup.3, and are preferably essentially free of TiO.sub.2. The glass compositions consist generally, in weight percent, of:

High index brown photochromic glasses

Growing community of inventors

Fontenay-sous-Bois, France

Yves Andre Brocheton