Positioning device having static fluid bearings
    2.
    发明授权
    Positioning device having static fluid bearings 失效
    具有静态流体轴承的定位装置

    公开(公告)号:US5105692A

    公开(公告)日:1992-04-21

    申请号:US619169

    申请日:1990-11-26

    IPC分类号: B23B21/00 B23Q1/62

    摘要: A machine tool comprising a third carriage which is guided along a circular cylindrical guide of a second carriage by means of a static fluid bearing and which can thus rotate about an axis of rotation which coincides with a centerline of the circular cylindrical guide. A working point of a tool fastened to the third carriage lies on the axis of rotation so that an angular adjustment of the tool effected by rotation of the third carriage can take place independently of a position adjustment of the working point effected by a displacement of the second carriage and a first carriage. The machine tool can be used for the processing of surfaces, in particular in the manufacture of linear and circular Fresnel lenses for projection television screens by means of a cutting tool.

    Device for manufacturing a mould for use in the manufacture of an optical element comprising optical sub-elements mutually arranged in a pattern
    3.
    发明授权
    Device for manufacturing a mould for use in the manufacture of an optical element comprising optical sub-elements mutually arranged in a pattern 有权
    用于制造用于制造光学元件的模具的装置,包括以图案相互排列的光学子元件

    公开(公告)号:US08069701B2

    公开(公告)日:2011-12-06

    申请号:US11459710

    申请日:2006-07-25

    摘要: An optical element is manufactured by means of a mould by a replication technique including a mold that is manufactured from a ductile metal and is given a mold shape which corresponds to a pattern of sub-elements by means of a die having a die surface which corresponds to the optical sub-element and which is imprinted in the mold with a predetermined force in consecutive positions in accordance with the pattern. A workpiece holder fastened to the mold including a stepped chamber which is displaceable relative to the workpiece holder by a positioning device. The die surface imprints the sub-shape in the mold with a predetermined force substantially independent of a position occupied by the die during imprinting. The predetermined force plastically deforms the ductile metal exclusively at the area of the surface contact between the mold and the die.

    摘要翻译: 光学元件通过模具通过复制技术制造,该复制技术包括由延性金属制成的模具,并且通过具有对应于模具表面的模具被赋予与子元件的图案对应的模具形状 并且根据图案以连续的位置以预定的力将压印在模具中。 固定到模具上的工件支架包括阶梯室,该阶梯室可通过定位装置相对于工件夹具移动。 模具表面以预定的力将模具中的子形状压印成基本上与印模期间由模具占据的位置无关。 预定的力量仅在模具和模具之间的表面接触区域塑性地使韧性变形。

    Support device for a drum
    8.
    发明授权
    Support device for a drum 失效
    滚筒支撑装置

    公开(公告)号:US5161901A

    公开(公告)日:1992-11-10

    申请号:US853884

    申请日:1992-03-18

    摘要: A support device for a drum (1) which is provided with two journals (57, 59) projecting from the drum on either side of the drum, whose centerlines (25, 27) substantially coincide with the centerline (9) of the drum. Each of the two journals (57, 59) is journalled around an axis of rotation (61) in a bearing bush (63, 65) which is attached to a frame (67) by a ring-shaped membrane (69) positioned in a plane transverse to the axis of rotation (61). Each of the two journals (57, 59) forms part of a shaft (17, 19) projecting into the drum (1), and attached to a shell (7) of the drum by a ring-shaped plate (11). An end of a portion of each shaft (17, 19) projecting into the drum (1) bears on adjustment devices (41, 43, 49) by which the relevant shaft (17, 19) with journal (57, 59) can be swivelled relative to the centerline (9) of the drum (1). In particular, such a support device is used for a drum (1) which serves as a rotating carrier for a plate-shaped workpiece which is to be machined accurately by a cutting tool, such as, for example, a master for the production of projection television screens.

    摘要翻译: 一种用于滚筒(1)的支撑装置,其具有从滚筒的鼓的两侧突出的两个轴颈(57,59),所述两个轴颈的中心线(25,27)基本上与滚筒的中心线(9)重合。 两个轴颈(57,59)中的每一个围绕轴承衬套(63,65)中的旋转轴线(61)轴颈,轴承衬套通过位于框架(67)中的环形膜(69)附接到框架(67) 横向于旋转轴线的平面(61)。 两个轴颈(57,59)中的每一个形成为突出到滚筒(1)中的轴(17,19)的一部分,并通过环形板(11)附接到滚筒的壳体(7)。 突出到滚筒(1)中的每个轴(17,19)的一部分的端部承载在具有轴颈(57,59)的相关轴(17,19)可以通过该调节装置(41,43,49) 相对于滚筒(1)的中心线(9)旋转。 特别地,这种支撑装置用于滚筒(1),滚筒(1)用作用于通过切割工具(例如用于生产的切割工具)精确加工的板状工件的旋转载体 投影电视屏幕。