Method of producing ocular lens and holders for holding lens blank during cutting thereof
    13.
    发明授权
    Method of producing ocular lens and holders for holding lens blank during cutting thereof 失效
    制造眼镜片的方法和在切割期间保持镜片毛坯的保持器

    公开(公告)号:US06224467B1

    公开(公告)日:2001-05-01

    申请号:US09121573

    申请日:1998-07-23

    CPC classification number: B24B13/005

    Abstract: A method of producing an ocular lens, comprising the steps of: (a) preparing a lens blank which gives an ocular lens, the lens blank having a concave back surface and a convex front surface, at least a portion of the front surface being tapered to give a tapered surface; (b) forming a back curved surface of the ocular lens by effecting a cutting operation on the concave back surface of the lens blank, while the lens blank is supported on a spindle of a back surface cutting device such that the tapered surface of the lens blank is drawn onto a tapered holding surface of the spindle under a negative pressure applied to the lens blank, the tapered holding surface following a profile of the tapered surface of the lens blank; and (c) forming a front curved surface of the ocular lens by effecting a cutting operation on the front surface of the lens blank whose back surface has been cut to form the back curved surface, while the lens blank is supported on a spindle of a front surface cutting device such that the back curved surface of the lens blank is drawn onto a holding surface of the spindle of the front surface cutting device under a negative pressure applied to the lens blank.

    Abstract translation: 一种制造眼透镜的方法,包括以下步骤:(a)制备提供眼透镜的透镜毛坯,所述透镜毛坯具有凹后表面和凸前表面,所述前表面的至少一部分是锥形的 给出锥形表面; (b)通过在透镜毛坯的凹面后面进行切割操作来形成眼镜片的后曲面,同时将镜片毛坯支撑在背面切割装置的主轴上,使得透镜的锥形表面 空白在施加到透镜毛坯的负压下拉到主轴的锥形保持表面上,锥形保持表面遵循透镜毛坯的锥形表面的轮廓; 以及(c)通过对其后表面已经被切割以形成后曲面的透镜毛坯的前表面进行切割操作来形成眼镜片的前曲面,而镜片毛坯被支撑在 前表面切割装置,使得透镜毛坯的后曲面在施加到透镜毛坯的负压下被拉到前表面切割装置的主轴的保持表面上。

    Method and jig for holding contact lens material, using light-scattering
bonding adhesive
    16.
    发明授权
    Method and jig for holding contact lens material, using light-scattering bonding adhesive 失效
    使用光散射粘合剂保持隐形眼镜材料的方法和夹具

    公开(公告)号:US5630901A

    公开(公告)日:1997-05-20

    申请号:US361496

    申请日:1994-12-22

    CPC classification number: B24B13/0043 B24B13/005

    Abstract: A jig adapted to hold a contact lens material having a concave surface, for holding the contact lens material, including a protruding portion which has a top end having as an outer surface thereof a convex surface. This convex surface of the jig is bonded to the concave surface of the contact lens material. The protruding portion has a recess which extends from an inner surface of the top end toward a bottom end of the protruding portion. The recess is defined by an inner surface which includes a first portion that corresponds to the convex surface of the top end of the protruding portion. At least the first portion of the inner surface is toughened with a light-scattering texture. A method of holding the contact lens material while the contact lens material is processed into a contact lens is disclosed.

    Abstract translation: 一种适于保持具有凹形表面的隐形眼镜材料的夹具,用于保持隐形眼镜材料,包括具有作为其外表面的凸起表面的顶端的突出部分。 夹具的该凸面与接触透镜材料的凹面接合。 突出部具有从顶端的内表面朝向突出部的底端延伸的凹部。 凹部由内表面限定,该内表面包括对应于突出部分的顶端的凸出表面的第一部分。 至少内表面的第一部分用光散射纹理增韧。 公开了一种在将隐形眼镜材料加工成隐形眼镜时保持隐形眼镜材料的方法。

    Contact lens cleaning device
    17.
    发明授权
    Contact lens cleaning device 失效
    隐形眼镜清洁装置

    公开(公告)号:US4965904A

    公开(公告)日:1990-10-30

    申请号:US431955

    申请日:1989-11-06

    CPC classification number: G02C13/008 Y10S134/901

    Abstract: A contact lens cleaning device comprising a ball, a vessel formed with a recessed chamber for housing the lens and the ball, and a vibrator for vibrating the vessel. The chamber has a bottom concave surface so curved that the lens is mounted in face-to-face contact thereon. After the lens is sandwiched between the bottom concave surface of the chamber, the ball is cleaned when the vessel is vibrated by the vibrator.

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