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    • 12. 发明申请
    • IN SITU METHOD AND APPARATUS FOR BLOCKING LENSES
    • 用于阻挡镜片的现场方法和装置
    • WO1996012590A1
    • 1996-05-02
    • PCT/GB1995002464
    • 1995-10-18
    • RANK TAYLOR HOBSON LIMITED
    • RANK TAYLOR HOBSON LIMITEDCHALOUX, Leonard, Edwin
    • B24B13/005
    • B24B13/005B24B13/0025Y10T82/10
    • A blocking technique and apparatus are used to mount a partially finished lens (20a) or other component to an arbor (30), which is useable to hold the partially finished lens (20a) for subsequent machining or mechanical operations. The blocking of the partially finished lens (20a) occurs on the same axes of the multi-axis machining device (10) that were used to generate the partially finished lens (20a). The blocking of the partially finished lens (20a) occurs without removing the partially finished lens (20a) from the workpiece holder (28) which held the partially finished lens (20a) during the machining operation. Accurate and repeatable blocking is achieved using the axes of the lens generating equipment.
    • 使用阻挡技术和装置将部分成品的镜片(20a)或其他部件安装到心轴(30)上,该心轴可用于保持部分成品的镜片(20a)用于随后的加工或机械操作。 部分完成的透镜(20a)的阻挡发生在用于产生部分完成的透镜(20a)的多轴加工装置(10)的相同的轴上。 在加工操作期间,没有从保持部分完成的镜片(20a)的工件保持器(28)中移除部分完成的镜片(20a)而发生部分完成的镜片(20a)的阻挡。 使用透镜发生设备的轴实现精确和可重复的遮挡。
    • 18. 发明公开
    • Metrology
    • METROLOGIE。
    • EP0426492A2
    • 1991-05-08
    • EP90312031.9
    • 1990-11-02
    • RANK TAYLOR HOBSON LIMITED
    • Baxter, Iain Kenneth
    • G01B7/00G01B3/00
    • G01B7/012G01B3/008
    • A multiaxis measuring probe 10 for continuous measurement of workpieces (e.g. roundness, other form, or size measurment) has in one embodiment a stylus 50 suspended by resilient forces acting in opposition so as to determine an equilibrium rest position. This appears to improve the dynamic response/accuracy trade-off of the probe. The resilient forces are preferably provided by a diaphragm spring 40,140,210 and one or more opposing springs 80A,80B,180,214. The stylus 50 is preferably held magnetically to a stylus mount 34,134,206,208 via precision bearings, and the resilient forces act on the stylus mount.
    • 用于连续测量工件(例如圆度,其他形式或尺寸测量)的多轴测量探针10在一个实施例中具有通过相反作用的弹性力而悬挂以便确定平衡静止位置的触针50。 这似乎改善了探针的动态响应/精度权衡。 弹性力优选由隔膜弹簧40,140,​​210和一个或多个相对的弹簧80A,80B,180,214提供。 触针50优选通过精密轴承磁性地固定到触控笔座34,134,206,208,并且弹性力作用在触控笔座上。
    • 20. 发明公开
    • Metrological apparatus
    • Metrologische Vorrichtung。
    • EP0335474A2
    • 1989-10-04
    • EP89201143.8
    • 1987-02-26
    • RANK TAYLOR HOBSON LIMITED
    • Lane, Hugh RogersOnyon, Peter Dean
    • G01B7/00G01B7/28
    • G01B21/20G01B7/008G01B7/282G01B7/345G01B21/30
    • Metrological apparatus, particularly for measuring form, has a turntable 4 and a transducer 14 and associated stylus 12 mounted so that the tip 12a of the stylus is displaceable radially and vertically relative to the turntable 4. The problem of obtaining both high resolution and large range of operation is solved by using a transducer/stylus 12,14 having a resolution of 12 nanometres and a range of only 0.4 mm and mounting the transducer 14 on an arm 10 which is driven radially and/or vertically by a computer 30 in response to the output from the transducer 14 to cause the stylus 12 to follow the workpiece surface. High resoiution data defining the rotary position of the turntable 4 and the radial and vertical position of the transducer 14 is provided by a photodetector/optical grating arrangement 23, 21, 31; 27, 19, 43 and associated interpolators 42, 44, 46. A novel computer architecture comprising a host 22, master 30 and slaves 33, 35, 37 provides an efficient system for controlling the apparatus and gathering data. Efficient gathering of data is further assisted by the provision of means to cause the stylus 12 to traverse the surface of the workpiece at a constant speed, particularly as a function of the radial position of the transducer.
    • 特别是用于测量形式的计量装置具有转盘4和换能器14以及相关联的触笔12,其被安装成使得触针的尖端12a相对于转盘4可径向和垂直地移位。获得高分辨率和大范围的问题 通过使用具有12纳米分辨率和仅0.4mm的范围的换能器/触针12,14来解决,并将换能器14安装在臂10上,臂10响应于计算机30而被径向和/或垂直地驱动 来自换能器14的输出以使得触笔12跟随工件表面。 通过光电检测器/光栅装置23,21,31提供限定转台4的旋转位置的高清晰数据和换能器14的径向和垂直位置。 包括主机22,主机30和从机33,35,37的新型计算机架构提供了一种用于控制设备和收集数据的有效系统。 通过提供使得触针12以恒定速度,特别是作为换能器的径向位置的函数的方式穿过工件的表面的手段进一步辅助了数据的有效收集。