专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

31. 发明申请

US20050243442A1 Objective lens drive device 有权
标题翻译：物镜驱动装置
公开(公告)号：US20050243442A1
公开(公告)日：2005-11-03
申请号：US10529469
申请日：2003-09-16
申请人： Mitoru Yabe , Keiji Kamura
发明人： Mitoru Yabe , Keiji Kamura
IPC分类号： G11B7/09 , G11B7/085 , G02B7/02
CPC分类号： G11B7/08505 , G11B7/0901 , G11B7/0908
摘要： A lens holder (1) is so supported that the lens holder (1) is movable along a supporting shaft (6) in parallel to an optical axis of the object lens (3), and rotatable about the supporting shaft (6). Magnets (41, 42) are mounted on the lens holder (1). Focusing coils (71, 72) and tracking coils (81, 82) having sides facing the magnets (41, 42) are mounted on a base (5) on which the supporting shaft (6) is planted. Yokes (91, 92) are so provided that the yokes (91, 92) and the magnets (41, 42) respectively sandwich the focusing coils (71, 72) and the tracking coils (81, 82). The yokes (91, 92) have facing portions (91a, 92a) that face respective magnetic poles of the magnets (41, 42) and extending portions (91b, 92b) extending in the directions away from the magnets (41, 42).
摘要翻译：透镜支架（1）被支撑成使得透镜保持器（1）能够沿着平行于物镜（3）的光轴的支撑轴（6）移动，并且能够围绕支撑轴（6）旋转。磁体（41,42）安装在透镜架（1）上。具有面对磁体（41,42）的侧面的聚焦线圈（71,72）和跟踪线圈（81,82）安装在其上种植有支撑轴（6）的基座（5）上。轭（91,92）被设置为使得轭（91,92）和磁体（41,42）分别夹着聚焦线圈（71,72）和跟踪线圈（81,82）。磁轭（91,92）具有面对磁体（41,42）的各磁极的相对部分（91a，92a）和沿远离磁体（41）的方向延伸的延伸部分（91b，92b），42）。

32. 发明授权

US06894850B2 Objective lens driving apparatus 有权
公开(公告)号：US06894850B2
公开(公告)日：2005-05-17
申请号：US10336751
申请日：2003-01-06
申请人： Keiji Nakamura , Mitoru Yabe
发明人： Keiji Nakamura , Mitoru Yabe
IPC分类号： G11B7/09 , G02B7/02 , G11B7/00
CPC分类号： G11B7/0933 , G11B7/0935
摘要： An objective lens driving apparatus includes a lens holder 1 that holds an objective lens 2, and a stationary base 9 that supports the lens holder 1 by a support shaft 3 parallel to an optical axis of the objective lens 2. A stationary yoke 11 and the magnet 8 are mounted to the stationary base 9. A focusing coil 4 and the tracking coils 5a and 5b are mounted to the lens holder 1. The interaction between the current in the focusing coil 4 and the magnetic field caused by the magnet 8 generates an electromagnetic force that moves the lens holder 1 along the support shaft 3. The interaction between the current in the tracking coils 5a and 5b and the magnetic field caused by the magnet 8 generates an electromagnetic force that rotates the lens holder 1 about the support shaft 3.

33. 发明授权

US06888689B2 Objective lens driving apparatus 有权
标题翻译：物镜驱动装置
公开(公告)号：US06888689B2
公开(公告)日：2005-05-03
申请号：US10824381
申请日：2004-04-15
申请人： Keiji Nakamura , Mitoru Yabe
发明人： Keiji Nakamura , Mitoru Yabe
IPC分类号： G11B7/09 , G02B7/02 , G11B7/00
CPC分类号： G11B7/0933 , G11B7/0935
摘要： An objective lens driving apparatus includes a lens holder 1 that holds an objective lens 2, and a stationary base 9 that supports the lens holder 1 by a support shaft 3 parallel to an optical axis of the objective lens 2. A stationary yoke 11 and the magnet 8 are mounted to the stationary base 9. A focusing coil 4 and the tracking coils 5a and 5b are mounted to the lens holder 1. The interaction between the current in the focusing coil 4 and the magnetic field caused by the magnet 8 generates an electromagnetic force that moves the lens holder 1 along the support shaft 3. The interaction between the current in the tracking coils 5a and 5b and the magnetic field caused by the magnet 8 generates an electromagnetic force that rotates the lens holder 1 about the support shaft 3.
摘要翻译：物镜驱动装置包括保持物镜2的透镜保持器1和通过与物镜2的光轴平行的支撑轴3支撑透镜保持器1的固定基座9。固定磁轭11和磁铁8安装在固定基座9上。聚焦线圈4和跟踪线圈5a和5b安装在透镜架1上。聚焦线圈4中的电流和由磁体8引起的磁场之间的相互作用产生使透镜保持器1沿着支撑轴3移动的电磁力。跟踪线圈5a和5b中的电流与由磁体8引起的磁场之间的相互作用产生使透镜架1围绕支撑轴3旋转的电磁力。

34. 发明授权

US5218597A Optical reading and writing device 失效
标题翻译：光学读写器
公开(公告)号：US5218597A
公开(公告)日：1993-06-08
申请号：US913299
申请日：1992-07-14
申请人： Mitoru Yabe
发明人： Mitoru Yabe
IPC分类号： G11B7/09 , G11B7/095
CPC分类号： G11B7/0956 , G11B7/0901
摘要： A thruhole 23 is provided with a movable member so that a light beam irradiated from an LED passes through the thruhole and is received by a photo detector for positional detection whereby the position of an objective lens relative to the light receiving groove of an information recording medium is detected. At the same time, a light beam passing through the thruhole 46 and reflected by the information recording medium is received by a photo detector for inclination detection whereby the inclination angle of the objective lens against the information recording medium is detected.
摘要翻译：通孔23设置有可动部件，使得从LED照射的光束穿过通孔并被光电检测器接收用于位置检测，从而物镜相对于信息记录介质的光接收槽的位置被检测到。同时，通过通孔46并由信息记录介质反射的光束被光检测器接收用于倾斜检测，从而检测物镜对信息记录介质的倾斜角度。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式