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1. 发明专利

JPS6148142A Optical head 失效
标题翻译：光学头
公开(公告)号：JPS6148142A
公开(公告)日：1986-03-08
申请号：JP17001684
申请日：1984-08-16
申请人： Olympus Optical Co Ltd , Pioneer Electronic Corp
发明人： IKEGAME TETSUO , SUGIMOTO YOICHI , ITO KENICHI , TAKEGAWA KEIJI , DOBASHI YASUTAKA , NINOMIYA MASAMI , NAGANO SHINJI , MUSHA TORU , WADA YASUMITSU , KIKUCHI IKUYA , TAKANO TOMOMITSU , SHIMODA KOSHI , EGASHIRA YOSHINORI
IPC分类号： G11B7/09
CPC分类号： G11B7/0932
摘要： PURPOSE:To mass-produce inexpensively stable products while avoiding troublesome bend forming by using completely separate focusing plate and tracking plate springs as a couple and connecting both of them via a relay member. CONSTITUTION:A support mechanism is constituted by a couple of focusing plate springs 4a, 4b, the relay member 5 and a couple of tracking plate springs 6a, 6b. A couple of focusing plate springs 4a, 4b and a couple of tracking plate springs 6a, 6b are constituted by having only to cut plate springs at a proper length, and since no bending forming required for a conventional head is necessary, the manufacture is easy. A couple of focusing coils 9a, 9b are fixed to a side face opposing to the tracking direction T of the support member 2 and a couple of tracking coils 10a, 10b are mounted incorporatedly to the outside of the focusing coils.
摘要翻译：目的：通过使用完全分离的聚焦板和跟踪板簧作为一对并通过中继构件连接它们，大量生产廉价稳定的产品，同时避免麻烦的弯曲成形。构成：支撑机构由一对聚焦板簧4a，4b，中继构件5和一对跟踪板弹簧6a，6b构成。一对聚焦板弹簧4a，4b和一对跟踪板弹簧6a，6b仅通过切割适当长度的板簧构成，并且由于不需要传统头部所需的弯曲成形，所以制造容易。一对聚焦线圈9a，9b固定到与支撑构件2的跟踪方向T相对的侧面，并且一对跟踪线圈10a，10b被组合地安装到聚焦线圈的外侧。

2. 发明专利

JPS6190337A Optical information recording/reproducing device 失效
标题翻译：光信息记录/再现设备
公开(公告)号：JPS6190337A
公开(公告)日：1986-05-08
申请号：JP21034684
申请日：1984-10-09
申请人： Olympus Optical Co Ltd
发明人： NAGANO SHINJI , DOBASHI YASUTAKA , TAKEGAWA KEIJI , ITO KENICHI , IKEGAME TETSUO
IPC分类号： G02B7/28 , G11B7/09 , G11B7/135 , G02B7/11
摘要： PURPOSE:To detect an accurate error signal without being influenced by an astigmatism by attaching a lens so that the focus direction of astigmatism of the objective lens and the direction of split line of a photodetector may coincide. CONSTITUTION:When an objective lens 6 is attached to the actuator, the lens is attached so that the focus direction of the lens may coincide with X axis or Y axis of the split line of a photodetector. If the lens is attached in this way, the variation of light distribution which may occur to bit refraction pattern projected on the optical detector 9 due to an astigmatism will be symmetrical against the split line, so the difference factor is not infused into the error signal. Therefore, the influence of the astigmatism of lens will be eliminated and error signals can be accurately detected enabling correct follow-up.
摘要翻译：目的：通过附加透镜来检测准确的误差信号而不受像散影响，使得物镜的散光的聚焦方向和光电检测器的分割线的方向可以一致。构成：当将物镜6安装在致动器上时，透镜被安装成使得透镜的聚焦方向与光电检测器的分割线的X轴或Y轴重合。如果以这种方式附接透镜，则由于散光而投影在光学检测器9上的位折射图案可能发生的光分布的变化将相对于分割线对称，因此差分因子不会输入到误差信号中。因此，可以消除透镜散光的影响，可以准确检测误差信号，从而能够进行正确的跟踪。

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