公开(公告)号：US5555232A

公开(公告)日：1996-09-10

申请号：US336782

申请日：1994-11-09

申请人： Shohei Kobayashi ,  Takeshi Yamazaki ,  Tsuneo Yanagida ,  Haruhiko Takemura ,  Toshihiro Ogata

发明人： Shohei Kobayashi ,  Takeshi Yamazaki ,  Tsuneo Yanagida ,  Haruhiko Takemura ,  Toshihiro Ogata

IPC分类号： G11B7/12 ,  G11B7/125 ,  G11B7/13 ,  G11B7/135 ,  G11B7/00

CPC分类号： G11B7/126 ,  G11B7/123 ,  G11B7/13 ,  G11B7/1378

摘要： An optical head has a semiconductor laser for emitting light, a collimator lens for converting the light from the laser into a parallel light beam, a semiconductor substrate for reflecting the light beam, and an objective lens for focussing the light beam reflected from the substrate on the optical disk. A 1/4 wavelength plate is situated between the substrate and the objective lens. A beam splitter which transmits the light from the laser and reflects the light returning from the disk is provided between the collimator lens and the substrate. Following the beam splitter, a collective lens, a cylindrical lens and an optical detector are arranged in this order on an optical path for the returning light. A light receiving element for outputting a signal corresponding to the intensity of the light received is formed on the semiconductor substrate, and a polarizing film is formed on the surface thereof.

摘要翻译： 光头具有用于发射光的半导体激光器，用于将来自激光的光转换为平行光束的准直透镜，用于反射光束的半导体基板和用于将从基板反射的光束聚焦的物镜 光盘。 A + E，fra 1/4 + EE波片位于基片和物镜之间。 在准直透镜和基板之间设置有从激光器透射光并反射从光盘返回的光的分束器。 在分束器之后，在用于返回光的光路上依次布置集体透镜，柱面透镜和光学检测器。 在半导体衬底上形成用于输出与所接收的光的强度相对应的信号的光接收元件，并且在其表面上形成偏振膜。

公开(公告)号：USD288558S

公开(公告)日：1987-03-03

申请号：US604132

申请日：1984-04-26

申请人： Haruhiko Takemura ,  Nobuhide Matsubayashi ,  Tsuneo Yanagida ,  Masaharu Sakamoto

设计人： Haruhiko Takemura ,  Nobuhide Matsubayashi ,  Tsuneo Yanagida ,  Masaharu Sakamoto

公开(公告)号：US06241790B1

公开(公告)日：2001-06-05

申请号：US09218451

申请日：1998-12-22

申请人： Takehito Matsubara ,  Shinichi Jinushi ,  Toshio Murata ,  Yasuaki Hiramura ,  Yasuyuki Ida ,  Kazuya Miyazaki ,  Yasuaki Ito ,  Saburo Komai ,  Haruhiko Takemura

发明人： Takehito Matsubara ,  Shinichi Jinushi ,  Toshio Murata ,  Yasuaki Hiramura ,  Yasuyuki Ida ,  Kazuya Miyazaki ,  Yasuaki Ito ,  Saburo Komai ,  Haruhiko Takemura

IPC分类号： H01M600

CPC分类号： H01M4/0416 ,  H01M2/26 ,  H01M4/04 ,  H01M4/0419 ,  H01M4/043 ,  H01M4/0471 ,  H01M4/808 ,  Y10T29/49108

摘要： In a process for the production of an electrode for cell, a three-dimensional porous metal substrate is filled with an active material filler containing an active material. Then, heat and ultrasonic vibration is applied in order to denature or deform the active material filler to the substrate at a predetermined point where a collector leading portion is formed to remove the active material filler.

摘要翻译： 在用于制造电池用电极的方法中，用含有活性物质的活性物质填充物填充三维多孔金属基材。 然后，施加热和超声波振动，以便在形成集电体引导部分的预定点将活性材料填料变性或变形到基板上以除去活性材料填料。

公开(公告)号：US4574371A

公开(公告)日：1986-03-04

申请号：US466910

申请日：1983-02-16

申请人： Haruhiko Takemura ,  Kiichi Kato ,  Masaharu Sakamoto

发明人： Haruhiko Takemura ,  Kiichi Kato ,  Masaharu Sakamoto

IPC分类号： G11B7/08 ,  G11B7/085 ,  G11B7/12 ,  G11B7/00

CPC分类号： G11B7/12 ,  G11B7/08 ,  G11B7/085

摘要： An optical recording and reproducing apparatus includes a first semiconductor laser for emitting a recording laser beam whose intensity is modulated in accordance with an information signal to be recorded and a second semiconductor laser for emitting a reproducing laser beam having a constant intensity. The recording and reproducing semiconductor lasers are commonly mounted in a supporting member which is mounted on a pick-up plate arranged movably in a radial direction of a rotating optical disc. The recording and reproducing laser beams are composed with each other by means of a substantially parallelogram shaped prism having a reflection surface for reflecting the reproducing laser beam and an optical surface upon which the reproducing laser beam is made incident at an incident angle larger than a critical angle and the recording laser beam is made incident at an incident angle near Brewster's angle. The composed recording and reproducing laser beams are commonly focussed by a single objective lens onto the optical disc in such a manner that the recording laser beam is made incident upon an information track to be formed and the reproducing laser beam is made incident upon a guide track or a previously recorded information track.

摘要翻译： 一种光学记录和再现装置包括：第一半导体激光器，用于发射根据要记录的信息信号调制其强度的记录激光束;以及第二半导体激光器，用于发射具有恒定强度的再现激光束。 记录和再现半导体激光器通常安装在支撑构件中，支撑构件安装在沿旋转光盘的径向方向可移动地布置的拾取板上。 记录和再现激光束通过具有用于反射再现激光束的反射表面的基本上平行四边形的棱​​镜和重现激光束以大于临界的入射角入射的光学表面彼此组成 角度和记录激光束以布鲁斯特角附近的入射角入射。 组合的记录和再现激光束通常由单个物镜聚焦到光盘上，使得记录激光束入射到要形成的信息轨迹上，并且再现激光束入射到导轨上 或先前记录的信息轨道。

公开(公告)号：US4728188A

公开(公告)日：1988-03-01

申请号：US839334

申请日：1986-03-13

申请人： Seizi Kitagawa ,  Shozi Yoshikawa ,  Haruhiko Takemura

发明人： Seizi Kitagawa ,  Shozi Yoshikawa ,  Haruhiko Takemura

IPC分类号： G11B7/125 ,  H01S5/06 ,  H01S5/068 ,  H01S5/0683 ,  G01J1/18

CPC分类号： H01S5/06825 ,  H01S5/0617 ,  H01S5/0683

摘要： A light source degradation detecting apparatus for a laser device monitors drive currents and output laser beams. The degradation detecting apparatus includes drivers for supplying three drive signals to the laser, a photodiode for detecting laser outputs produced in response to the drive signals, a memory for storing measured values and the drive signals, and a discriminator for calculating ratio P from storage data (laser outputs W.sub.n, W.sub.n+1, and W.sub.n+2 produced in response to drive currents I.sub.n, I.sub.n+1, and I.sub.n+2) as follows:P={(W.sub.n+2 -W.sub.n)/(I.sub.n+2 -I.sub.n)}/{(W.sub.n+1 -W.sub.n)/(I.sub.n+1 -I.sub.n)}and for discriminating that the laser has reached an end of its life when the ratio P falls outside a predetermined range.

摘要翻译： 用于激光装置的光源劣化检测装置监视驱动电流并输出激光束。 劣化检测装置包括用于向激光器提供三个驱动信号的驱动器，用于检测响应于驱动信号产生的激光输出的光电二极管，用于存储测量值的存储器和驱动信号，以及用于从存储数据计算比率P的鉴别器 （激光输出Wn，Wn + 1和Wn + 2响应于驱动电流In，In + 1和In + 2而产生）如下：P = {（Wn + 2-Wn）/（In + 2-In ）} / {（Wn + 1-Wn）/（In + 1-In）}，并且用于鉴别当比率P在预定范围之外时激光已经达到其寿命的结束。