An improved device and method for manufacturing an...

G - Physics – 02 – C

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G02C 7/06 (2006.01)

Patent

CA 2636773

An improved device and method for manufacturing electro-active spectacle lenses comprising electronic, electro-active optical, and bulk refractive optical elements is presented. In this method, electronic and electro-active optical elements are mounted to an optically transparent and mechanically flexible integration insert which is separate from any bulk refractive optical element(s). This method is advantageous for the manufacture of such spectacle lenses in that it allows for the mass production of many of the individual elements and enables the integration of the insert with the bulk refractive optical element(s) by multiple means. One such approach involves attaching the insert with a transparent adhesive to a rigid optical substrate and then encapsulating it by means of surface casting. Alternatively, the insert may be placed between the surfaces of a mold filled with an optical resin and encapsulated within the bulk refractive element as the resin is cured.

L~invention concerne un dispositif amélioré et un procédé de fabrication de verres de lunettes électro-actifs comprenant des éléments optiques de réfraction en masse, optiques électro-actifs et électroniques. Selon le procédé, des éléments optiques électro-actifs et électroniques sont montés sur un insert d~intégration mécaniquement flexible et optiquement transparent qui est séparé de tout élément optique de réfraction en masse. Ce procédé est avantageux pour la fabrication de tels verres de lunettes en ce sens qu~il permet la production industrielle de nombreux éléments individuels de même que l~intégration de l~insert avec le ou les éléments optiques de réfraction en masse par de multiples moyens. Une telle approche consiste à fixer l~insert avec un adhésif transparent à un substrat optique rigide puis à l~encapsuler par coulage superficiel. Alternativement, l~insert peut être placé entre les surfaces d~un moule rempli d~une résine optique et encapsulé dans l~élément de réfraction en masse pendant la cuisson de la résine.

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