31.
    发明专利
    未知

    公开(公告)号:FR2784920B1

    公开(公告)日:2001-01-19

    申请号:FR9813243

    申请日:1998-10-22

    Applicant: ESSILOR INT

    Abstract: The method of determining the cutting path of a groove is formed in the edge of an optical lens. The method involves gauging the position and thus the curvature of a rigid section (12) of the upper lens frame of the spectacles to allow matching of the contour of the groove in the upper edge of the lens.

    32.
    发明专利
    未知

    公开(公告)号:DE69601748T2

    公开(公告)日:1999-12-30

    申请号:DE69601748

    申请日:1996-05-22

    Applicant: ESSILOR INT

    Abstract: The template is mounted in the place of the ophthalmic lens on the grinder to be calibrated. It has the general shape of a disc being circular on a part of its periphery (22). There are locally two sharp points (23), circumscribed by the same circumference (C), which are angularly separated from each other by 90 degrees . In the smallest (A'1) of the two subtended angles at the centre (A'1,A'2) delimited by the sharp points the disc contour is concave. The circumference which circumscribes the two sharp points on its periphery then extends into its circular part (22A). The two sharp points result from the intersection of the disc circular part with a notch (22B) cut into its periphery.

    Dispositivo de medición de lente
    36.
    发明专利

    公开(公告)号:ES2545764T3

    公开(公告)日:2015-09-15

    申请号:ES03290884

    申请日:2003-04-09

    Applicant: ESSILOR INT

    Abstract: Procedimiento para remarcar o resaltar la forma de un contorno (5, 6, 9, 10) de una lente oftálmica (1) previamente mecanizada, que incluye las operaciones consistentes en: - iluminar una cara óptica (2, 3) de la lente (1) por medio de un haz luminoso (15) plano para formar sobre esta cara (2, 3) una mancha luminosa 5 (16) lineal, de manera que el haz (15) desborde de dicha cara (2, 3) e ilumine dicho contorno (5, 6, 9, 10); - formar sobre medios de recepción óptica (18) una imagen (21) de dicha mancha luminosa (16); - arrastrar en rotación la lente (1) alrededor de un eje (A); - barrer el contorno (5, 6, 9, 10) por medio del haz luminoso (15); - remarcar conjuntamente sobre los medios de recepción óptica (18) las posiciones sucesivas de al menos un punto singular (S, T, V) de esta imagen (21) correspondiente al punto iluminado (S', T', V') de dicho contorno (5, 6, 9, 10); - deducir de ello la forma de dicho contorno (5, 6, 9, 10)

    37.
    发明专利
    未知

    公开(公告)号:DE60300125T2

    公开(公告)日:2005-10-13

    申请号:DE60300125

    申请日:2003-04-09

    Applicant: ESSILOR INT

    Abstract: During the chamfering of the edge (6) of the lens, the edge is scanned by a plane light beam (23) which forms a linear light mark (24). An image of the light mark is formed in an optical reception system (26). This image is used to monitor and control the machining process. The procedure provides chamfering for the edge (6) of a an ophthalmic lens (1), during which the edges of the lens are removed successively in order to define the chamfered edge (6). During this process, the edge (6) of the lens is scanned by a plane light beam (23) which forms a linear light mark (24). At the same time an image of the light mark is formed in an optical reception system (26). From this it is possible to deduce the successive positions of the image, and hence the position of the chamfer formed on the edge of the lens. The process is carried out whilst the lens is mounted to rotate about an axis (A1), whilst its edge is in contact with the chamfering tool. The relative position of the lens and the tool are adjusted as a function of the light mark detection.

    PROCEDIMIENTO DE BISELADO DE UNA LENTE OFTALMICA QUE COMPRENDE UNA ETAPA DE REGISTRO SIN CONTACTO.

    公开(公告)号:ES2231762T3

    公开(公告)日:2005-05-16

    申请号:ES03290887

    申请日:2003-04-09

    Applicant: ESSILOR INT

    Abstract: Procedimiento para biselar al menos un borde (5, 6) de una cara óptica (2, 3) de una lente oftálmica (1) que comprende una etapa de registro en la cual se registran las combaduras sucesivas (á) de la cara óptica (2, 3) cerca y a lo largo del borde (5, 6) a biselar, caracterizado porque, en la etapa de registro se barre el borde (5, 6) a biselar por medio de un haz luminoso (23) plano que forma en la cara óptica (2, 3) una mancha luminosa (24) lineal, se forma simultáneamente en medios de recepción óptica (26) una imagen (29) de la mancha luminosa (24), se deducen de las posiciones sucesivas de esta imagen (29) las combaduras sucesivas (á) de la cara óptica (2, 3) cerca del borde (5, 6) y porque comprende una etapa de biselado en la cual se lleva la lente (1) trasladada en rotación alrededor de un eje (A1) en contacto a través de su borde (5, 6) con una herramienta de biselado (9) y se comanda el posicionamiento relativo de la lente (1) y de la herramienta (9) en función de los registros efectuados.

    40.
    发明专利
    未知

    公开(公告)号:FR2852877B1

    公开(公告)日:2005-05-06

    申请号:FR0303764

    申请日:2003-03-27

    Applicant: ESSILOR INT

    Abstract: The invention relates to a method for carrying out the precise trimming of a lens ( 1 ), whereby the lens is held between two clamping plates ( 2, 3 ) in a given position and the grinding of the periphery of the lens ( 1 ) is controlled along a trajectory, the last programmed part of which corresponds to the form ( 8 ) desired for the lens. The method comprises a first scanning under weak clamping conditions of a number of points on one face of the lens with scanning of the coordinates of the points ( 8 ), forming the trace on said face of the mounting circle, a second scanning, with a significant level of clamping which corresponds to that used on trimming the lens of a second number of points on said face of the lens, an approximate mathematical representation of the face of the lens for each of the two clamping conditions, a calculation of the coordinates for the deformation of the contour of the lens on said face of the lens in the second clamping condition to correct the last programmed part of the grinding trajectory.

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