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92 records (took 0.023 seconds)

    81.
    发明专利
    未知

    公开(公告)号：AT384940T

    公开(公告)日：2008-02-15

    申请号：AT01965331

    申请日：2001-08-17

    Applicant: ESSILOR INT

    Inventor： DEVIE PIERRE ,  BELL FRANCIS ,  LE SAUX GILLES

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

    Abstract: A method for measuring the geometrical structure of an optical component ( 2 ) in transmission, comprises illuminating the optical component by means of a first incident beam ( 8, 10 ), the wavefront of which is known. After the first beam is transmitted by the optical component, its wavefront is measured by deflectometry ( 16, 18 ). The optical component is then illuminated by a second incident beam ( 12, 14 ), the wavefront of which is known. After the second beam is transmitted by the optical component, its wavefront is measured by deflectometry ( 16, 18 ). The geometrical structure of the optical component is then calculated from the measured wavefronts. Measuring light transmitted in two distinct optical configurations allows a calculation by optimizing the two surfaces of the component, without prior knowledge of one of the surfaces. The first and second beams may be different and may illuminate the same surface of the component; thus it is possible to use identical beams and to illuminate each surface of the component in succession.

    OPHTHALMIC LENS
    82.
    发明专利
    OPHTHALMIC LENS 未知

    公开(公告)号：CA2622093A1

    公开(公告)日：2007-05-18

    申请号：CA2622093

    申请日：2006-07-04

    Applicant: ESSILOR INT

    Inventor： DECRETON BRUNO ,  LE SAUX GILLES ,  CHAUVEAU JEAN-PIERRE

    IPC: G02C7/02

    Abstract: Progressive multifocal ophthalmic lens having a power addition prescription and presenting a complex surface having a fitting cross and a principal meridian of progression. The lens has, when being worn, a normalized reduced root mean square deviation of less than 0.025 microns per dioptre over a zon e that includes the far vision control point and covering a sector whose apex lies 4~ below the fitting cross with an angular aperture of between 150~ and 160~; and a progression length of 25~ or less, the progression length being defined as the angle of lowered of the view direction from the fitting cross down to the point on the meridian for which the wearer's optical power reach es 85% of the addition prescription. The lens is suitable for increased far vision with good accessibility to near vision.

    84.
    发明专利
    未知

    公开(公告)号：FR2866442B1

    公开(公告)日：2006-08-04

    申请号：FR0450294

    申请日：2004-02-18

    Applicant: ESSILOR INT

    Inventor： LE SAUX GILLES ,  MOLITON RENAUD

    IPC: G02B27/02 ,  G02B27/01 ,  G02C7/00 ,  G02C7/02 ,  G02C9/00 ,  G02C11/00

    Abstract: The lens has a mark with a reference for a location of an ophthalmic imager (5) with respect to the lens as a function of correction lens parameters. The mark includes the location of distant vision point (VLSF) and data permitting to construct a theoretical virtual ocular center (COTV) corresponding to the center of the eye of a user. A slot is placed so that the optical axis of the imager is perpendicular to that of the lens. An independent claim is also included for an ophthalmic display including an ophthalmic lens.

    87.
    发明专利
    未知

    公开(公告)号：DE69801630T2

    公开(公告)日：2002-06-27

    申请号：DE69801630

    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.

    89.
    发明专利
    未知

    公开(公告)号：AT207210T

    公开(公告)日：2001-11-15

    申请号：AT96400756

    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.

    90.
    发明专利
    未知

    公开(公告)号：DE69801630D1

    公开(公告)日：2001-10-18

    申请号：DE69801630

    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.

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