公开(公告)号：US4571715A

公开(公告)日：1986-02-18

申请号：US468680

申请日：1983-02-22

申请人： Kikuji Kato ,  Akinori Watabe ,  Hiroo Ukita ,  Susumu Yonezawa

发明人： Kikuji Kato ,  Akinori Watabe ,  Hiroo Ukita ,  Susumu Yonezawa

IPC分类号： G11B7/09 ,  G11B7/08

CPC分类号： G11B7/093 ,  G11B7/0932

摘要： An optical head for use with an optical disk has a unit packaging an optical path conversion device for converting a light beam path from substantially in parallel to the surface of a rotating optical disk into a direction substantially perpendicular to the surface of the optical disk, a lens system for focusing the light beam onto the recording surface of the optical disk, and a focus controlling mechanism for adjusting the focus of the lens system. A head outer shell supports the unit by one or more diaphragms for movement of the unit in the parallel direction of the optical path. A track control mechanism which includes an electromagnetic actuator adjusts the positional relation of the unit relative to outer shell in that parallel direction without causing unit movement in the perpendicular direction.

摘要翻译： 用于光盘的光头具有单元封装光路转换装置，用于将基本平行于旋转光盘的表面的光束路径转换成基本上垂直于光盘表面的方向， 用于将光束聚焦到光盘的记录表面上的透镜系统，以及用于调节透镜系统的焦点的聚焦控制机构。 头部外壳通过一个或多个隔膜支撑该单元，用于在光路的平行方向上移动该单元。 包括电磁致动器的轨道控制机构在该平行方向上调整该单元相对于外壳的位置关系，而不会使单元在垂直方向上移动。

公开(公告)号：US07963691B2

公开(公告)日：2011-06-21

申请号：US11632962

申请日：2005-07-21

申请人： Hiroo Ukita

发明人： Hiroo Ukita

IPC分类号： B01F7/18

CPC分类号： F03G6/00 ,  B01F7/0025 ,  B01F13/0059 ,  B01F15/00435 ,  B01F15/00551 ,  B81B3/0029 ,  B81B2201/038 ,  F03G6/06 ,  F03G7/00 ,  Y02E10/46 ,  Y02P70/32

摘要： The light pressure rotator (1) is the light pressure rotator being light pressure trapped by irradiation with light and light pressure rotating about the central axis O of rotation, characterized in that a reverse torque generating section generating a torque for rotating the rotator in the direction reverse to the predetermined direction is removed from a section arranged with three blades (2) each having a first side face (3) extending in the radial direction from the central axis O of rotation, a second side face (4) facing the central axis O of rotation, a third side face (5) facing the first side face (3), a lower surface (6) intersecting the central axis O of the rotation, and an upper surface (7) facing the lower surface (6). The light pressure rotating device comprises the light pressure rotator (1), a light source (C), and an objective (condenser) lens D.

摘要翻译： 轻压旋转器（1）是轻压力旋转器，其是通过围绕中心轴线O旋转的光和轻压照射而被捕获的轻压力，其特征在于，产生用于使旋转器沿方向旋转的转矩的反转扭矩产生部 从具有从旋转中心轴线O沿径向延伸的第一侧面（3）的三个叶片（2）布置的部分去除与预定方向相反的部分，第二侧面（4）面向中心轴线 旋转的第三侧面（5），与第一侧面（3）相对的第三侧面（5），与旋转的中心轴线O相交的下表面（6）和面向下表面（6）的上表面（7）。 轻压旋转装置包括轻压旋转器（1），光源（C）和物镜（聚光镜）D.

公开(公告)号：US20080031088A1

公开(公告)日：2008-02-07

申请号：US11632962

申请日：2005-07-21

申请人： Hiroo Ukita

发明人： Hiroo Ukita

IPC分类号： B01F7/00

CPC分类号： F03G6/00 ,  B01F7/0025 ,  B01F13/0059 ,  B01F15/00435 ,  B01F15/00551 ,  B81B3/0029 ,  B81B2201/038 ,  F03G6/06 ,  F03G7/00 ,  Y02E10/46 ,  Y02P70/32

摘要： The light pressure rotator (1) is the light pressure rotator being light pressure trapped by irradiation with light and light pressure rotating about the central axis O of rotation, characterized in that a reverse torque generating section generating a torque for rotating the rotator in the direction reverse to the predetermined direction is removed from a section arranged with three blades (2) each having a first side face (3) extending in the radial direction from the central axis O of rotation, a second side face (4) facing the central axis O of rotation, a third side face (5) facing the first side face (3), a lower surface (6) intersecting the central axis O of the rotation, and an upper surface (7) facing the lower surface (6). The light pressure rotating device comprises the light pressure rotator (1), a light source (C), and an objective (condenser) lens D.

摘要翻译： 轻压旋转器（1）是轻压力旋转器，其是通过围绕中心轴线O旋转的光和轻压照射而被捕获的轻压力，其特征在于，产生用于使旋转器沿方向旋转的转矩的反转扭矩产生部 从具有从旋转中心轴线O沿径向延伸的第一侧面（3）的三个叶片（2）布置的部分去除与预定方向相反的部分，面向中心轴线的第二侧面（4） 旋转的第三侧面（5），与第一侧面（3）相对的第三侧面（5），与旋转的中心轴线O相交的下表面（6）和面向下表面（6）的上表面（7）。 轻压旋转装置包括轻压旋转器（1），光源（C）和物镜（聚光镜）D.

公开(公告)号：US4860276A

公开(公告)日：1989-08-22

申请号：US97560

申请日：1987-09-16

申请人： Hiroo Ukita ,  Yoshitada Katagiri ,  Renshi Sawada ,  Yuuji Uenishi ,  Yoshihiro Isomura ,  Tomoyuki Toshima ,  Keisuke Mise

发明人： Hiroo Ukita ,  Yoshitada Katagiri ,  Renshi Sawada ,  Yuuji Uenishi ,  Yoshihiro Isomura ,  Tomoyuki Toshima ,  Keisuke Mise

IPC分类号： G11B7/12 ,  G11B7/125 ,  G11B7/13 ,  H01S3/00 ,  H01S5/00 ,  H01S5/026 ,  H01S5/065 ,  H01S5/10 ,  H01S5/14 ,  H01S5/40

CPC分类号： G11B7/127 ,  G11B7/122 ,  G11B7/13 ,  H01S5/10 ,  H01S5/14 ,  H01S3/005 ,  H01S5/0028 ,  H01S5/005 ,  H01S5/0262 ,  H01S5/065 ,  H01S5/4031

摘要： A micro optical head, for optically reading and/or writing digital data on a recording medium in which digital data 1 and 0, corresponding to a high reflection factor and a low reflection factor, is composed of a self-coupled semiconductor laser located close to the recording medium. A bias current of the laser is determined so that it is smaller than a first threshold current, in which the medium has a low reflection factor, and is higher than a second threshold current, in which the medium has a high reflection factor. Output light of the laser is either strong stimulated emission light, corresponding to the high reflection factor, or weak spontaneous emission light, corresponding to the low reflection factor. The present head is carried on a flying slider with a spacing length less than several .mu.m which provides a small beam spot of about 1 .mu.m, and has an excellent signal to noise ratio. A photodetector for sensing the output of the laser may be carried on the same semiconductor substrate as that of the laser.

摘要翻译： 一种微光学头，用于在记录介质上光学读取和/或写入数字数据，其中对应于高反射因数和低反射系数的数字数据1和0由接近于...的自耦半导体激光器组成 记录介质。 确定激光器的偏置电流，使得其小于第一阈值电流，其中介质具有低反射系数，并且高于其中介质具有高反射系数的第二阈值电流。 激光的输出光是对应于低反射因子的强激发光，对应于高反射因子或弱自发发光。 当前的头部承载在间隔长度小于几μm的飞行滑块上，其提供约1μm的小束斑，具有优异的信噪比。 用于感测激光器的输出的光电检测器可以在与激光器相同的半导体衬底上承载。