Cable making apparatus
    1.
    发明授权
    Cable making apparatus 失效
    电缆制造设备

    公开(公告)号:US4120139A

    公开(公告)日:1978-10-17

    申请号:US819035

    申请日:1977-07-25

    CPC分类号: D07B7/02 D07B3/00 D07B7/14

    摘要: Improvements in apparatus for the manufacture of a cable by laying or assemblying pre-twisted outer strands around a pre-twisted core. For smooth transmission of the pre-twist through the core length from a pay-out reel to a laying die, a series of interspaced pairs of opposed guide rollers are disposed along the path of the core to engage the same therebetween. Further, for smooth transmission of the pre-twists through the lengths of the outer strands from respective pay-out reels to the laying die, a series of interspaced tapered guide rollers are disposed along a curve in the path of each outer strand. At least some of the tapered guide rollers are set an an angle to the axial direction of the outer strand being fed thereover and, preferably, further to the direction normal to the vertical plane containing the curve in the outer strand path.

    摘要翻译: 通过将预先扭绞的外股线围绕预捻芯线布置或组装来制造电缆的装置的改进。 为了将预捻通过芯长度从发放卷轴平稳地传递到铺设模具,沿着芯的路径布置一系列相对的导向辊的间隔隔开的一对相互对置的导向辊以在其间相互接合。 此外,为了通过外股线从相应的放出卷轴到敷设模具的长度的平稳传递,沿着每条外股线的路径中的曲线设置一系列间隔的锥形导向辊。 至少一些锥形导向辊与外部线材的轴向方向成一角度,并且优选地设置成垂直于包含外部股线路径中的曲线的垂直平面的方向。

    Liquid crystal optical element and a laser projection apparatus using
polymer dispersed liquid crystal
    2.
    发明授权
    Liquid crystal optical element and a laser projection apparatus using polymer dispersed liquid crystal 失效
    液晶光学元件和使用聚合物分散液晶的激光投射装置

    公开(公告)号:US5331446A

    公开(公告)日:1994-07-19

    申请号:US74407

    申请日:1993-06-10

    CPC分类号: G02F1/1334 G02F2001/13756

    摘要: A laser projection apparatus including a liquid crystal optical element of a transparent and scattering type having a liquid crystal and solidified matrix composite. A laser beam having a wavelength of approximately 1 .mu.m emitted from a laser beam source is supplied to the liquid crystal optical element, and a projection optical system operates for reduction-projection a laser beam emitted from the liquid crystal optical element onto an object. Further, with respect to a certain pixel of the liquid crystal optical element, there are overlapped portions between lead lines of a common electrode and lead lines of a segment electrode in the vicinity of the pixel, a width W.sub.1 (.mu.m) of the overlapped portion, a reduction projection ratio (projection by 1/N) and a gap d(.mu.m) between electrodes of the liquid crystal optical element satisfy the relation, W.sub.1 +d

    摘要翻译: 一种激光投射装置,包括具有液晶和固化基质复合体的透明散射型液晶光学元件。 将从激光源发射的具有约1μm的波长的激光束提供给液晶光学元件,并且投影光学系统用于将从液晶光学元件发射的激光束还原到物体上。 此外,对于液晶光学元件的某个像素,在像素附近,公共电极的引线与段电极的引线之间存在重叠的部分,重叠的宽度W1(μm) 部分,液晶光学元件的电极之间的缩小投影比(投影1 / N)和间隙d(μm)满足关系式W1 + d <10×N。 此外,所用液晶的折射率各向异性DELTA n为0.18以上,粘度eta(cSt)为60以下,折射率平均值DELTA n,平均粒径R(μm) 分散并保持在固化基质中的液晶,电极之间的间隙d(μm)满足以下关系:(1)0.5 <ΔTAnxR <1.3,(2)3.5 <ΔDTAnxd <8.0。 采用复用驱动来驱动液晶光学元件。