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    • 8. 发明授权
    • Apparatus for measuring the refractive power of the eye
    • 用于测量眼睛屈光力的装置
    • US4376573A
    • 1983-03-15
    • US131499
    • 1980-03-18
    • Isao MatsumuraYasuyuki IshikawaShigeo MaruyamaReiji HiranoYoshimi Kohayakawa
    • Isao MatsumuraYasuyuki IshikawaShigeo MaruyamaReiji HiranoYoshimi Kohayakawa
    • A61B3/10A61B3/103
    • A61B3/103
    • In an apparatus having a ray generator for directing measuring rays through a first optical path, a light-receiving portion for receiving the measuring rays reflected by the eye fundus through a second optical path, and a uniting device for uniting the first and second optical paths to form a third optical path, and also having movable lens groups in each of the first and second optical paths or a movable lens group in the third optical path, and wherein the movable lens groups or group is moved along the optical path to measure the refractive power of the eye from signals corresponding to the positions of the movable lens groups or group and the signal of the light-receiving portion, the movable lens groups or group is made into an afocal system to prevent the dimensions of the pupil from being varied and a collimator for collimating the principal rays is fixedly disposed on that side of the movable lens groups or group which is adjacent to the eye to be examined.
    • 在具有用于通过第一光路引导测量射线的射线发生器的装置中,通过第二光路接收由眼底反射的测量射线的光接收部分,以及用于将第一和第二光路 以形成第三光路,并且在第一和第二光路中的每一个中还具有可移动透镜组或第三光路中的可移动透镜组,并且其中可移动透镜组或组沿着光路移动以测量 来自对应于可移动透镜组或组的位置的信号的眼睛的屈光力和光接收部分的信号,可移动透镜组或组被制成无焦点系统以防止瞳孔的尺寸变化 并且用于准直主光线的准直器被固定地设置在与要检查的眼睛相邻的可移动透镜组或组的一侧上。
    • 9. 发明授权
    • Method and apparatus for controlling increment type position control
apparatus
    • 控制增量式位置控制装置的方法和装置
    • US4233491A
    • 1980-11-11
    • US919174
    • 1978-06-26
    • Shigeo MaruyamaYuji NishikaichiShigeki FujinagaTatsuya Miura
    • Shigeo MaruyamaYuji NishikaichiShigeki FujinagaTatsuya Miura
    • B23K9/12G05B19/00
    • B23K9/12
    • An increment type position control apparatus is adapted to evaluate a numerical value concerning a positional point by making subtraction between the data in a position feedback counter for counting a feedback pulse from an incremental encoder and the data in a commanded position buffer from a processor. Upon depression of an origin return command button provided on a control panel, the position feedback counter and the commanded position buffer are each loaded with a predetermined value, whereupon a pitch is given, whereby an object being controlled is controllably moved in the direction toward the origin. If and when the object being controlled exceeds the origin position, the same is stopped and the counter and the buffer are each again loaded with an appropriate numerical value, whereupon a given pitch is provided, whereby the object being controlled is moved in the direction toward the origin and comes to a point to almost exceeding the origin position. Just at the timing when the object being controlled is about to pass the origin position, the position feedback counter is set, whereby the data concerning the origin is regained in the apparatus.
    • 增量型位置控制装置适于通过在来自增量编码器的反馈脉冲计数的位置反馈计数器中的数据与来自处理器的命令位置缓冲器中的数据之间进行减法来评估与位置点有关的数值。 当按下设置在控制面板上的原点返回命令按钮时,位置反馈计数器和命令位置缓冲器分别被加载预定值,由此给出了间距,由此被控制的对象被可控地沿着朝向 起源。 如果控制对象超过原点位置时,停止该计数器和缓冲器,再次加载适当的数值,由此提供给定的间距,由此被控制的物体朝向 起源于几乎超过原产地位置。 正当被控制对象即将通过原点位置的定时时,设置位置反馈计数器,由此在装置中重新获得关于原点的数据。