Appareil de traitement de l'objectif à loupe

Vorrichtung zum Bearbeiten von Brillengläsern

Eyelass lens processing apparatus

Abstract

In a two-step processing mode in which a cup for attaching a lens to a chuck axis is changed from a large diameter cup to a small diameter cup on the way of processing, a roughing path data computing unit for computing first roughing path data larger than the target lens shape data by a predetermined finishing margin, and second roughing path data having a radius vector larger by at least Δa than at least radius vector data of the large diameter cup; and a processing controller for roughing the peripheral edge of the lens based on the second roughing path data in response to a processing start signal, thereafter stopping the processing and further resuming the processing. The processing controller performs, when a processing resuming signal is inputted, processing control of either roughing and finishing, or finishing without roughing.

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Cited By (4)

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    EP-2380701-A1October 26, 2011Essilor International (Compagnie Générale d'Optique)Method for trimming an ophthalmic spectacle lens
    FR-2958870-A1October 21, 2011Essilor IntProcede de detourage d'une lentille ophtalmique de lunettes
    FR-2994876-A1March 07, 2014Luneau Technology OperationsHalf drive and/or holding shaft for grinding machine of optical glass of spectacles, has indexing tooth longitudinally extending from connection base to adapter until free edge, where side edges of tooth converge from base to edge
    US-8747187-B2June 10, 2014Essilor International (Compagnie Generale D'optique)Method for shaping an ophthalmic lens for eyeglasses