公开(公告)号：US06762806B1

公开(公告)日：2004-07-13

申请号：US09599018

申请日：2000-06-21

申请人： Hiroto Matsuo ,  Isao Takemoto ,  Naoki Tsukamoto ,  Tatsumi Segawa

发明人： Hiroto Matsuo ,  Isao Takemoto ,  Naoki Tsukamoto ,  Tatsumi Segawa

IPC分类号： G02F11333

CPC分类号： G02B6/0091 ,  G02B6/0031 ,  G02F1/133608 ,  G02F1/133615

摘要： A holder for holding a display device is divided into a first holder (5) and a second holder (6), and a light source housing chamber (10) for housing a light source (1) is also divided so that a work for mounting the light source (1) to the light source housing chamber (10) becomes easy. A first reflector (55) and a second reflector (65) integrally formed with the holder and having a reflecting surface corresponding to a light emitting part of the light source (1) are provided in the light source housing chamber (10), thus a certain space is secured around the light source, the light is efficiently incident to a light guide plate, and a separately formed reflector becomes unnecessary.

摘要翻译： 用于保持显示装置的保持器被分成第一保持器（5）和第二保持器（6），并且用于容纳光源（1）的光源容纳室（10）也被分割成用于安装 到光源容纳室（10）的光源（1）变得容易。 在光源容纳室（10）中设置有与保持器一体形成且具有与光源（1）的发光部分对应的反射面的第一反射器（55）和第二反射器（65） 一定的空间固定在光源周围，光线有效地入射到导光板，并且不需要单独形成的反射器。

公开(公告)号：US06434096B1

公开(公告)日：2002-08-13

申请号：US09674023

申请日：2000-10-24

申请人： Noritaka Akagi ,  Tsutomu Kai ,  Shuichi Yoshida ,  Kiyoshi Masaki ,  Teruyuki Naka ,  Yasuo Kashiwagi ,  Isao Takemoto

发明人： Noritaka Akagi ,  Tsutomu Kai ,  Shuichi Yoshida ,  Kiyoshi Masaki ,  Teruyuki Naka ,  Yasuo Kashiwagi ,  Isao Takemoto

IPC分类号： G11B700

CPC分类号： G11B7/0901 ,  G11B7/094 ,  G11B7/0941 ,  G11B7/0956

摘要： In order to correct the change in the offset and amplitude of a tracking error signal because of the change in the position of an object lens from the center of an optical pickup, the offset amount and amplitude value of the tracking error signal with respect to the displacement amount of the object lens from the center of the optical pickup are checked beforehand, and the displacement amount of the object lens is estimated on the basis of a tracking correction signal by using an object lens displacement observer. An offset detection section and an amplitude detection section detect the offset amount and amplitude value of the tracking error signal respectively, and the tracking error signal is corrected by an offset correction circuit and an amplitude correction circuit on the basis of the offset amount and amplitude value having been checked beforehand so that the offset amount and the amplitude value of the tracking error signal become identical to those obtained when the displacement amount of the object lens is zero. In addition, the offset of the tilt error signal depending on the movement direction of the optical pickup 2 is detected and recorded beforehand, and the tilt error signal is corrected on the basis of the above-mentioned recorded offset when a rotation direction detection section detects the moving direction of the optical pickup.

摘要翻译： 为了校正由于物镜的位置从光学拾取器的中心的变化引起的跟踪误差信号的偏移和振幅的变化，跟踪误差信号的偏移量和振幅值相对于 预先检查物镜从光学拾取器的中心的位移量，并且通过使用物镜位移观察器基于跟踪校正信号来估计物镜的位移量。 偏移检测部分和振幅检测部分分别检测跟踪误差信号的偏移量和振幅值，并且基于偏移量和振幅值由偏移校正电路和振幅校正电路校正跟踪误差信号 预先检查，使得跟踪误差信号的偏移量和振幅值变得与当物镜的位移量为零时获得的偏移量和振幅值相同。 此外，预先检测并记录与光学拾取器2的移动方向相对应的倾斜误差信号的偏移，并且当旋转方向检测部检测到时，基于上述记录偏移来校正倾斜误差信号 光学拾取器的移动方向。

公开(公告)号：US06744716B1

公开(公告)日：2004-06-01

申请号：US09889964

申请日：2001-07-24

申请人： Isao Takemoto

发明人： Isao Takemoto

IPC分类号： G11B390

CPC分类号： G11B7/0956 ,  G11B7/00 ,  G11B7/08582

摘要： A pickup moving mechanism for making it difficult to generate a deviation between an optical axis of an optical pickup and a target position on a disk. This mechanism is constituted to comprise: an elevation member tilting a guide member based on an angle deviation of the optical axis of the optical pickup in a disk diameter direction, and inclining the optical pickup supported by the guide member in a direction in which the angle deviation of the optical axis decreases; a cam follower; a tilt motor; an eccentric cam; an urging means; and a controller for controlling a pickup motor operating a screw member and an engagement member so as to move the optical pickup in a direction in which the deviation of the optical axis in the disk diameter direction generated by inclination of the optical pickup decreases.

摘要翻译： 用于使得难以产生光学拾取器的光轴与盘上的目标位置之间的偏差的拾取移动机构。 该机构包括：升降构件，其基于光学拾取器的光轴在盘直径方向上的角度偏差倾斜引导构件，并且将由引导构件支撑的光学拾取器沿着该角度 光轴的偏差减小; 凸轮跟随器 倾斜电机; 偏心凸轮 推动手段 以及控制器，用于控制操作螺钉构件和接合构件的拾取电动机，以沿着由光学拾取器的倾斜产生的光盘直径方向上的光轴偏移的方向移动光学拾取器。