Apparatus for generating ophthalmic products from blanks and a method of
operating same
    1.
    发明授权
    Apparatus for generating ophthalmic products from blanks and a method of operating same 失效
    用于从坯料产生眼用产品的装置及其操作方法

    公开(公告)号:US5485771A

    公开(公告)日:1996-01-23

    申请号:US38350

    申请日:1993-03-19

    摘要: An apparatus for use in the generation of ophthalmic products from blanks comprises a mechanism for rotating the blank about an axis of rotation. A cutter tool imparts a desired surface configuration onto the rotating blank. A first moving mechanism moves the cutter tool in a first direction oriented parallel to the axis of rotation of the blank. A second moving mechanism moves the cutter tool in a second direction oriented transverse to the first axis. A digital electronic system controls the angular displacement of the blank with respect to a reference plane containing the blank, and controls the movements of the cutter tool in the first and second directions. The movements of the cutter tool in the first and second directions, and the angular displacement of the blank about the axis of rotation are all controlled independently of one another by the digital electronic system.

    摘要翻译: 用于从坯料产生眼用产品的装置包括用于围绕旋转轴线旋转坯件的机构。 切割工具将所需的表面构型赋予旋转的坯料。 第一移动机构沿着平行于坯料旋转轴线定向的第一方向移动刀具。 第二移动机构沿着横向于第一轴线定向的第二方向移动刀具。 数字电子系统控制坯料相对于包含坯料的参考平面的角位移,并控制刀具在第一和第二方向上的移动。 刀具在第一和第二方向上的运动以及坯料围绕旋转轴的角位移都通过数字电子系统彼此独立地控制。

    Conformal tool operating apparatus and process for an ophthalmic lens
finer/polisher
    2.
    发明授权
    Conformal tool operating apparatus and process for an ophthalmic lens finer/polisher 失效
    保形工具操作装置和眼镜镜片精细/抛光机的工艺

    公开(公告)号:US5577950A

    公开(公告)日:1996-11-26

    申请号:US158918

    申请日:1993-11-29

    IPC分类号: B24B13/01 B24B13/02 B24B1/00

    CPC分类号: B24B13/02 B24B13/012

    摘要: A tool for fining/polishing an opthalmic lens has a spindle and a pliant casing containing a conformable filler connected to the spindle for rotation therewith. A pliant pad adhered to the casing has a plurality of slots extending from its perimeter toward its center defining a plurality of fingers which are contoured to the surface of the lens by the filler.Preferably, the lens is rotated about a vertical fixed axis substantially transverse to the lens and the tool is rotated about a fixed axis intersecting the lens and substantially normal to a surface of the lens to be fined/polished with the tool disposed above the lens. The axis of the horizontal displacement of the tool can be selectively varied in relation to the lens axis. The angular disposition of the tool axis in relation to the lens axis can be selectively varied. The radial displacement of the tool in relation to the lens along the tool axis can be selectively varied to bring the pad into and out of abutment with the surface of the lens and to vary the pressure exerted on surface of the lens by the tool.

    摘要翻译: 用于澄清/抛光眼镜片的工具具有主轴和柔性外壳,其包含连接到主轴的适形填料以与其一起旋转。 粘附到壳体上的柔性垫具有从其周边向其中心延伸的多个狭槽,其限定多个指状物,多个指状物通过填料成形为透镜的表面。 优选地,透镜围绕基本上横向于透镜的垂直固定轴线旋转,并且工具围绕与透镜相交的固定轴线旋转并且基本上垂直于透镜的表面旋转,以被设置在透镜上方的工具进行精加工/抛光。 工具的水平位移的轴可相对于透镜轴选择性地变化。 可以选择性地改变工具轴相对于透镜轴的角度配置。 可以选择性地改变工具相对于透镜沿着工具轴线的径向位移,以使垫进入和离开与透镜的表面邻接并且改变由工具施加在透镜表面上的压力。

    Air pressurized chuck
    3.
    发明授权
    Air pressurized chuck 失效
    空气加压卡盘

    公开(公告)号:US5746436A

    公开(公告)日:1998-05-05

    申请号:US501410

    申请日:1995-07-12

    摘要: An air pressurized chuck has a spindle journalled in a housing for rotation about a longitudinal axis. One means is mounted in a penultimate portion of the spindle and rotatable therewith for longitudinally reciprocating along the axis in one direction in response to the bias of a coil spring disposed concentrically about the axis between the spindle and the reciprocating means and in an opposite direction in response to a pneumatic force selectively applied to the reciprocating means in excess of the bias. Another means is mounted in an ultimate portion of the spindle and rotatable therewith for concentrically reciprocating gripping portions thereof in relation to the longitudinal axis in an outward direction in response to movement of the longitudinal reciprocating means in the one direction and in an inward direction in response to movement of the longitudinal reciprocating means in the opposite direction. A third means fixed to the spindle and rotatable therewith establishes a reference plane transverse to the longitudinal axis. The spring has a diameter smaller than a smallest outer diameter of the spindle. The small diameter spring minimizes wobble in the rotating spindle. Maintaining the reference plane independent of the concentric reciprocating means assures consistent positioning of a workpiece to be gripped longitudinally in relation to the chuck.

    摘要翻译: 空气加压卡盘具有轴颈,其轴颈安装在壳体中以围绕纵向轴线旋转。 一种装置安装在主轴的倒数第二部分中并随其一起旋转,以便响应于围绕主轴和往复式装置之间的轴线同心地设置的螺旋弹簧的偏置并且沿相反方向在一个方向上沿着轴线在一个方向上纵向往复运动 响应于选择性地施加到往复运动装置上的超过偏压的气动力。 另一种装置安装在主轴的最终部分中并且可旋转,以响应于纵向往复装置在一个方向和向内方向上的响应而在向外方向上相对于纵向轴线的同心往复夹持部分 以使纵向往复运动装置沿相反方向移动。 固定在主轴上并随之旋转的第三装置构成横向于纵向轴线的参考平面。 弹簧的直径小于主轴的最小外径。 小直径弹簧使旋转主轴摆动最小化。 保持独立于同心往复运动装置的参考平面确保相对于卡盘纵向夹紧的工件的一致的定位。

    Lens grinding method and apparatus
    4.
    发明授权
    Lens grinding method and apparatus 失效
    镜头研磨方法和装置

    公开(公告)号:US5181345A

    公开(公告)日:1993-01-26

    申请号:US899131

    申请日:1992-06-16

    申请人: Stephen Kulan

    发明人: Stephen Kulan

    IPC分类号: B24B13/04 B24B13/06

    CPC分类号: B24B13/043 B24B13/06

    摘要: A lens grinding apparatus is capable of generating, in a lens blank, a power curve less than three diopters and having both a base characteristic and a cross curve characteristic. A plate is pivotably mounted on a base means, a first slide is slidably mounted on the plate, a second slide is pivotably mounted on the first slide, and a tool is mounted on the second slide for rotation about a tool axis of rotation. During a sweep of the tool across a lens blank, the position of the tool relative to the lens blank is continuously sensed to control a micro-processor. Under the control of the micro-processor, the first slide is continuously slid along the plate, and the second slide is continuously pivoted about an axis relative to the first slide. This is performed so that the sweep radius and the real head angle of the tool are continually changed in a manner maintaining a constant radius of curvature of the curve, and a constant effective head angle of the tool.

    摘要翻译: 透镜研磨装置能够在透镜毛坯中产生小于三个屈光度的功率曲线,同时具有基本特性和交叉曲线特性。 板可枢转地安装在基座装置上,第一滑块可滑动地安装在板上,第二滑块可枢转地安装在第一滑块上,并且工具安装在第二滑块上以围绕工具旋转轴线旋转。 在穿过镜头毛坯的工具扫过期间,连续地感测到刀具相对于镜片毛坯的位置以控制微处理器。 在微处理器的控制下,第一滑块沿着板连续滑动,第二滑块相对于第一滑块绕轴线连续地枢转。 这样进行,使得刀具的扫掠半径和实际头部角度以保持曲线的恒定曲率半径的方式不断地改变,并且工具的恒定有效头部角度。