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1. 发明专利

JPS59200540A Wide-band optical transmission system 失效
标题翻译：宽带光传输系统
公开(公告)号：JPS59200540A
公开(公告)日：1984-11-13
申请号：JP7428683
申请日：1983-04-27
申请人： Hitachi Cable Ltd
发明人： YAMAGUCHI HIDEO , ASAI TAKAHIRO , KOYAMA YUKIO
IPC分类号： H04B10/00 , H04B10/2507 , H04B10/272 , H04B10/29
CPC分类号： H04B10/50
摘要： PURPOSE:To eliminate deterioration in transmission characteristics due to reflection and to perform multidrop transmission by coupling a laser diode with plural optical fibers so that remote distances from the laser light emission surface to end surfaces are short enough to ignore the influence of reflection. CONSTITUTION:Analog modulation is imposed upon the laser diode 2 by a signal generated by amplifying 1 a multiplex video signal. The light emission surface of the diode 2 and end surfaces of optical fibers 3a-3c are set at such a remote distance that the influence of reflection is ignored, and the diode 2 is coupled with the fibers 3a-3c. Light signals from the diode 2 transmitted by the fibers 3a-3c are converted by photodiodes 5a-5c into electric signals, which are amplified to 6a-6c. Analog modulation is imposed upon a laser diode 7 by a signal generated by the amplification 6b to reconvert into a light signal, which is transmitted by coupling the diode 7 with optical fibers 3d-3f at similar remote distances. Consequently, a reflected wave from an optical fiber end surface or in a transmission line less enters the laser diode again to prevent deterioration in transmission characteristics.
摘要翻译：目的：为了消除由于反射导致的传输特性的劣化，并且通过将激光二极管与多根光纤耦合来执行多点传输，使得从激光发射表面到端表面的远距离足够短以忽视反射的影响。构成：通过将复用视频信号放大1产生的信号对模拟调制施加在激光二极管2上。二极管2的发光面和光纤3a-3c的端面被设定在远离反射的影响的距离，二极管2与光纤3a-3c耦合。由光纤3a-3c发送的二极管3的光信号由光电二极管5a-5c转换成电信号，放大到6a-6c。通过由放大器6b产生的信号对激光二极管7进行模拟调制，以将其重新转换为通过将二极管7与光纤3d-3f以相似的远距离耦合而传输的光信号。因此，来自光纤端面或传输线路的反射波较少进入激光二极管以防止传输特性的劣化。

2. 发明专利

JPS5914020A Controller of temperature 失效
标题翻译：温度控制器
公开(公告)号：JPS5914020A
公开(公告)日：1984-01-24
申请号：JP12337082
申请日：1982-07-15
申请人： Hitachi Cable Ltd
发明人： YAMAGUCHI HIDEO , ASAI TAKAHIRO
IPC分类号： G05D23/20 , G05D23/24
CPC分类号： G05D23/2034
摘要： PURPOSE:To make a titled device small in size by thermally short-circuiting a transistor (TR) of which an emitter is grounded and a base is in low impedance to an object of which temperature is to be controlled and turning on/off the 2nd TR by the output of a collector. CONSTITUTION:The TR 9 of which the emitter is grounded and the base is in low impedance is adhered to the object 1 of which temperature is to be controlled so as to be thermally short-circuited. The collector of the TR9 is connected to the base of the 2nd TR 12 and the TR 12 is turned on and off by the collector current of the TR 9. Current amplified by the TR 12 drives an electronic cooling device 4. The base of the TR 9 is biased at constant voltage by a variable resistor 10 and a resistor 11 and the setting temperature is controlled by the variable resistor 10. When the temperature of the object 1 is increased, the collector current of the TR 9 is suddenly increased by the temperature characteristics, the base current of the TR 12 is increased and the collector current of the TR 12 is also increased, so that the cooling ability of the electronic cooling device 4 is also increased. Thus, a prescribed low temperature can be maintained by the small-sized device.
摘要翻译：目的：通过热辐射发射极接地的晶体管（TR）和基极处于要控制温度的对象的低阻抗并使其接通/断开的第二个 TR由收集器的输出。构成：发射极接地并且基极处于低阻抗的TR 9被粘附到要控制温度的物体1以被热短路。 TR9的集电极连接到第二TR 12的基极，TR 12由TR 9的集电极电流导通和关断。由TR12放大的电流驱动电子冷却装置4.基极 TR 9通过可变电阻器10和电阻器11偏置在恒定电压，并且设定温度由可变电阻器10控制。当物体1的温度升高时，TR9的集电极电流突然增加温度特性，TR12的基极电流增加，并且TR12的集电极电流也增加，使得电子冷却装置4的冷却能力也增加。因此，小型装置可以维持规定的低温。

3. 发明专利

JPS5724903A Forming method for inclined end surface of optical fiber 失效
标题翻译：光纤光纤终端表面形成方法
公开(公告)号：JPS5724903A
公开(公告)日：1982-02-09
申请号：JP10083880
申请日：1980-07-23
申请人： Hitachi Cable Ltd
发明人： SHIMADA TAKASHI , KOYAMA YUKIO , YAMAGUCHI HIDEO
IPC分类号： G02B6/00 , B26D3/08 , C03B37/16 , G02B6/25
CPC分类号： G02B6/25
摘要： PURPOSE:To obtain a smooth inclined end surface by applying flaws at a position where bending stress of an optical fiber was produced. CONSTITUTION:By supporting an optical fiber 1 with a pair of clamps 2a, 2b, tensile stress and torque are given, and by bending the central part along a convex surface of a jig 3, at this part bending stress is produced. When with this state a maximum part of bending stress is pressurized with a diamond cutter 4, etc., and the part is scraped, stress rupture is produced and a smooth inclined end surface is obtained. An inclination angle at the inclined end surface changes with torque and bending stress. If torque is not applied, an end surface perpendicular to the center of the optical fiber 1 is obtained.
摘要翻译：目的：通过在产生光纤的弯曲应力的位置处施加缺陷来获得平滑的倾斜端面。构成：通过支撑具有一对夹具2a，2b的光纤1，提供拉伸应力和扭矩，并且通过沿着夹具3的凸形表面弯曲中心部分，在该部分产生弯曲应力。当用这种状态时，用金刚石切割器4等加压最大部分的弯曲应力，并且刮削该零件，产生应力破裂并获得平滑的倾斜端面。倾斜端面倾斜角随扭矩和弯曲应力而变化。如果不施加扭矩，则获得垂直于光纤1的中心的端面。

4. 发明专利

JPS5934684A Stabilization circuit for characteristic of semiconductor laser diode 失效
标题翻译：半导体激光二极管特性稳定电路
公开(公告)号：JPS5934684A
公开(公告)日：1984-02-25
申请号：JP14512982
申请日：1982-08-20
申请人： Hitachi Cable Ltd
发明人： YAMAGUCHI HIDEO , ASAI TAKAHIRO
IPC分类号： H01S5/042 , H01S5/0683
CPC分类号： H01S5/0683 , H01S5/06837
摘要： PURPOSE:To form a stabilization circuit for characteristics of a semiconductor laser diode with a simple structure by a method wherein the difference between the voltage which is proportional to a photo-current converted by a photo diode and the reference voltage is amplified, and the conduction current to an electron cooler which cools a laser vessel, and the laser bias current of the laser diode are controlled. CONSTITUTION:In a stabilization circuit for characteristic of a semiconductor laser diode, a conventional thermo-sensitive element is omitted so that an output of an error amplifier 7 is applied to a temperature controller 13 as the temperature measurements of a laser vessel 3. Since the bias current values I1, I2, and I3 for holding a light output at a constant value Lout correspond respectively to temperature T1, T2, and T3, the bias current values correspond to the laser diode 1, that is, the temperature measurements of the laser vessel 3. Meanwhile, since these bias current values are determined with the output of the error amplifier 7, as shown in the figure, inputting of the output of the error amplifier 7 to the temperature controller 3 is equivalent to applying the output of the conventional thermo-sensitive element.
摘要翻译：目的：通过以下方法形成具有简单结构的半导体激光二极管的特性的稳定电路，其中与由光电二极管转换的光电流成比例的电压与参考电压成比例的电压被放大，并且导通电流到冷却激光器的电子冷却器，激光二极管的激光偏置电流被控制。构成：在用于半导体激光二极管的特性的稳定电路中，省略了传统的热敏元件，使得误差放大器7的输出作为激光器3的温度测量值施加到温度控制器13。用于将光输出保持在恒定值Lout的偏置电流值I1，I2和I3分别对应于温度T1，T2和T3，偏置电流值对应于激光二极管1，即激光器的温度测量同时，由于这些偏置电流值由误差放大器7的输出确定，如图所示，误差放大器7的输出到温度控制器3的输入等于将常规的输出热敏元件。

5. 发明专利

JPS5746218A Optical fiber connecting part having directional property 失效
标题翻译：光纤连接部分具有方向性
公开(公告)号：JPS5746218A
公开(公告)日：1982-03-16
申请号：JP12287180
申请日：1980-09-04
申请人： Hitachi Cable Ltd
发明人： SHIMADA TAKASHI , KOYAMA YUKIO , YAMAGUCHI HIDEO
IPC分类号： G02B6/24 , G02B6/26 , G02B6/42
CPC分类号： G02B6/262 , G02B6/4207
摘要： PURPOSE:To decrease the quantity of reflection light on the connecting end of optical fibers whose core diameter is different, by deflecting in parallel the center axes of the connecting end of the optical fibers. CONSTITUTION:In case when a fiber 1 having a core 2 of small diameter, surrounded by a clad 3 is connected with a core 6 of large diameter, surrounded by a clad 7, when the axes of both the cores are deflected and connected in parallel as shown in the figure, decrease of the quantity of light which is transmitted from the core to the core 6 is a little comparatively, and the quantity of light which is transmitted from the core 6 to the core 2 decreases more than its area ratio. Accordingly, reflected rays at the side of a fiber 5 in the connecting end decrease remarkably, and quality of an optical signal which is transmitted from the optical fiber 1 to 5 is elevated.
摘要翻译：目的：通过使光纤的连接端的中心轴平行偏转，减小芯径不同的光纤的连接端的反射光量。构成：当具有由包层3包围的小直径的纤芯2的纤维1与由包层7围绕的大直径的芯6连接时，当两个芯的轴线被偏转并并联连接时如图所示，从芯部向芯部6透射的光量的减少稍微比较少，从芯部6向芯部2透射的光量比其面积率大。因此，连接端的光纤5侧的反射光线显着降低，从光纤1〜5发送的光信号的质量提高。

6. 发明专利

JP2006057158A Method for manufacturing composite material with low thermal expansivity and high thermal conductivity 审中-公开
标题翻译：制造具有低热膨胀和高导热性的复合材料的方法
公开(公告)号：JP2006057158A
公开(公告)日：2006-03-02
申请号：JP2004242127
申请日：2004-08-23
申请人： Hitachi Cable Ltd , 日立電線株式会社
发明人： IGO YASUYUKI , FUYU KIYOUHEI , YAMAGUCHI HIDEO , TAKANO YASUO
IPC分类号： B22F3/18
摘要： PROBLEM TO BE SOLVED: To provide a method for manufacturing a uniform composite material with low thermal expansivity and high thermal conductivity, at a high yield.
SOLUTION: A hopper 3 is a rectangular box located above a reduction roll 4, has a top face 3a opened, has a lower side drawn into a bend shape so as to comply with perimeters of the rolling rolls 4a and 4b toward a bottom end 3d, and has the bottom end 3d opened so as to face a roll caliber tool 7 of the rolling rolls 4a and 4b. The hopper 3 has comb support members 8 (having a support flute 8a) and 8 (having a support flute 8a) installed horizontally facing each other, in right and left wall surfaces 3b and 3c as shown in Figure; and has a plurality of perpendicular partition plates 9 inserted and guided into spaces between the support members 8 and 8 from the opening of the top face of the hopper 3 at predetermined spaces, so as to orthogonally cross a central axis of the roll caliber tool 7 of the rolling rolls 4a and 4b, and partition the hopper 3. The hopper 3 has a main body part 3A for accommodating the partition plate 9 and a bottom surface part 3B having a curvature equal to that of the rolling roll 4.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：待解决的问题：以高产率提供制造具有低热膨胀性和高热导率的均匀复合材料的方法。解决方案：料斗3是位于还原辊4上方的矩形盒，具有打开的顶面3a，具有被拉成弯曲形状的下侧，以便与轧辊4a和4b的周边朝向底端3d，并且使底端3d打开以面对轧辊4a和4b的辊口径工具7。如图所示，料斗3具有在左右壁表面3b和3c中彼此水平相对安装的梳齿支撑构件8（具有支撑槽8a）和8（具有支撑槽8a）并且具有多个垂直分隔板9，其以预定空间从料斗3的顶面的开口插入并被引导到支撑构件8和8之间的空间中，以便正交地与辊口径工具7的中心轴线交叉的轧辊4a和4b，并分配料斗3.料斗3具有用于容纳隔板9的主体部分3A和具有与轧辊4的曲率相等的曲率的底面部分3B。版权所有（C）2006，JPO＆NCIPI

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