Laser eyewear protection

Protection laser pour lunettes

Laser-Augenschutz

Abstract

This invention is directed to the production of glass articles transparent to visible radiation, but opaque to ultraviolet radiation, rendering them particularly suitable for protecting the wearer of such lenses from exposure to laser radiation in the ultraviolet regions of the electromagnetic spectrum. The method involves exposing silver halide-containing glass articles to flowing hydrogen in a heat chamber operating at 375°-500°C for at least four hours to produce an integral reduced layer in at least one surface of the articles of sufficient depth to prevent the transmission of ultraviolet radiation through the articles.

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Patent Citations (7)

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Cited By (2)

    Publication numberPublication dateAssigneeTitle
    FR-2815958-A1May 03, 2002Corning SaVerres mineraux borosilicates, colores, non photochromiques, absorbant les ultraviolets, preparations
    WO-0236512-A1May 10, 2002Corning S.A.Non-photochromic, colored, borosilicate inorganic glasses which absorb ultraviolet, and preparations