Optical scanner
    61.
    发明授权
    Optical scanner 失效
    光学扫描仪

    公开(公告)号:US5600476A

    公开(公告)日:1997-02-04

    申请号:US451396

    申请日:1995-05-26

    CPC分类号: G02B5/09 G02B26/125

    摘要: An optical scanner for use in laser beam printers and the like which is particularly satisfactory in imaging characteristics. A light beam from a semiconductor laser passes through a collimator lens, an aperture diaphragm and a cylindrical lens. The beam is then deflected by a rotating lens mirror and subjected to the focusing action of an imaging lens so that it is focused to form a beam spot, which scans over a scan surface as the beam is deflected. The imaging lens has aspheric surfaces in the main-scanning cross section and is designed so that the rate of change in its curvature and other relevant parameters satisfy a predetermined equation so as to lie within a predetermined range.

    摘要翻译: 用于激光束打印机等的光学扫描仪,其特别令人满意的成像特性。 来自半导体激光器的光束通过准直透镜,孔径光阑和柱面透镜。 然后光束被旋转透镜反射镜偏转并经受成像透镜的聚焦作用,使得其被聚焦以形成光束点,当光束被偏转时扫描光束点在扫描表面上扫描。 成像透镜在主扫描横截面中具有非球面,并且被设计成其曲率变化率和其它相关参数满足预定方程以便处于预定范围内。

    Carriage movement device for a magnetic memory device
    63.
    发明授权
    Carriage movement device for a magnetic memory device 失效
    用于磁存储器装置的支架移动装置

    公开(公告)号:US4757409A

    公开(公告)日:1988-07-12

    申请号:US98711

    申请日:1987-09-21

    IPC分类号: G11B21/02 G11B5/55

    CPC分类号: G11B5/55 Y10T74/18832

    摘要: A carriage movement device for a magnetic memory device having a carriage with a first end and a second end, the carriage being slidably supported on a rod is provided. The carriage movement device has a capstan which is angularly rotated by a driver and a belt having an elongated slot extending form a portion of the belt having the second width, the slot being at least as wide as the first end wrapping around the capstan. A first belt connector connects the first end of the belt to the first end of the carriage. A second belt connector connects the second end of the belt to the second end of the carriage. The second end of the belt is affixed to a second belt connector which is selectively engaged to the second end of the carriage by stretching the belt about the carriage and or deflecting an elastic projection formed on the carriage. The angular rotation of the capstan is accurately converted into linear movement of the carriage.

    摘要翻译: 一种用于具有具有第一端和第二端的滑架的磁性存储装置的滑架移动装置,滑架可滑动地支撑在杆上。 滑架运动装置具有主动轮,该主动轮由驾驶员角度地旋转,带具有延伸形成具有第二宽度的带的一部分的细长槽,该槽至少与围绕绞盘的第一端一样宽。 第一皮带连接器将皮带的第一端连接到滑架的第一端。 第二皮带连接器将皮带的第二端连接到滑架的第二端。 带的第二端被固定到第二带连接器,第二带连接器通过围绕滑架拉伸皮带并且或使形成在滑架上的弹性突起偏转而选择性地接合到滑架的第二端。 绞盘的角度旋转被精确地转换成滑架的线性运动。