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92 records (took 0.023 seconds)

    65.
    发明专利
    未知

    公开(公告)号：DE69615900T2

    公开(公告)日：2002-04-25

    申请号：DE69615900

    申请日：1996-04-05

    Applicant: ESSILOR INT

    Inventor： AHSBAHS FRANCOISE ,  BAUDART THIERRY ,  LE SAUX GILLES

    IPC: G02C7/06 ,  G02C7/02

    Abstract: The lens has an aspherical surface (S) with a distant vision zone (VL), a close vision zone (VP) and an intermediate vision zone (VI), with a main progression meridian (MM') passing through the three zones. The three vision zones (VL, VP, VI) are separated by isocylindrical lines, and the distant vision zone has a sector angle of at least 145 degrees. A line bisecting the angle forms an angle of less than 5 degrees, and pref under 2 degrees with a vertical.

    66.
    发明专利
    未知

    公开(公告)号：ES2163241T3

    公开(公告)日：2002-01-16

    申请号：ES98402534

    申请日：1998-10-13

    Applicant: ESSILOR INT

    Inventor： LE SAUX GILLES ,  PEDRONO CLAUDE ,  ROSSIER CLAIRE

    IPC: G02C7/06 ,  G02C7/02

    Abstract: The lens has an aspherical surface (S) presenting at any point a mean sphere and cylinder, having a distance vision zone (VL), a near vision zone (VP), an intermediate vision zone (VI) and a main meridian of progression (MM') passing through all three zones. The relationship between a maximum cylinder within a circle of 20 mm radius centered on the geometrical center of the lens and the distance from the center to a point inside the circle or maximum cylinder is less than or equal to half the maximum inclination of the mean sphere on the main meridian of progression.

    67.
    发明专利
    未知

    公开(公告)号：DE69615900D1

    公开(公告)日：2001-11-22

    申请号：DE69615900

    申请日：1996-04-05

    Applicant: ESSILOR INT

    Inventor： AHSBAHS FRANCOISE ,  BAUDART THIERRY ,  LE SAUX GILLES

    IPC: G02C7/06 ,  G02C7/02

    Abstract: The lens has an aspherical surface (S) with a distant vision zone (VL), a close vision zone (VP) and an intermediate vision zone (VI), with a main progression meridian (MM') passing through the three zones. The three vision zones (VL, VP, VI) are separated by isocylindrical lines, and the distant vision zone has a sector angle of at least 145 degrees. A line bisecting the angle forms an angle of less than 5 degrees, and pref under 2 degrees with a vertical.

    68.
    发明专利
    未知

    公开(公告)号：FR2807169A1

    公开(公告)日：2001-10-05

    申请号：FR0004143

    申请日：2000-03-31

    Applicant: ESSILOR INT

    Inventor： BAR NATHALIE ,  DECRETON BRUNO ,  BONNIN THIERRY ,  DONETTI BERANGERE ,  LE SAUX GILLES

    IPC: G02C7/02 ,  G02C13/00 ,  G02C1/00

    Abstract: The invention concerns a method for mounting in a frame a progressive user-prescribed ophthalmic lens. It consists in measuring on the user only the horizontal position of the user's pupil. From said measurement, and the total height of the frame size, the lens is positioned in the frame, then machined and mounted in the frame. The invention enables to avoid errors caused by measurements of the user's pupil height relative to the frame when mounting lenses.

    70.
    发明专利
    未知

    公开(公告)号：DE69402281D1

    公开(公告)日：1997-04-30

    申请号：DE69402281

    申请日：1994-09-02

    Applicant: ESSILOR INT

    Inventor： LE SAUX GILLES ,  BERTRAND PATRICK ,  LIPPENS XAVIER ,  LAFAY CHRISTOPHE

    IPC: G01B11/255 ,  G01B11/24 ,  G01M11/00 ,  G01M11/02

    Abstract: The invention relates to a method for absolute measurement of the geometrical or optical structure of an optical component (4), comprising steps consisting in: - illuminating the said optical component with incident light, the wavefront of which is known, - measuring, in a given plane, the maps of the slopes of the wavefront of the said light after reflection from the said optical component or transmission by the said optical component, which furthermore comprises at least one calculation procedure consisting in deducing the geometrical or optical structure of the optical component from the said measurement of the slope maps. A further subject of the invention is a device for implementing this method. The invention is applied in particular in the field of ophthalmology for checking or measuring ophthalmic lenses or moulds for fabricating ophthalmic lenses.

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