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1. 发明专利

JPS60192926A Optical fiber network 失效
标题翻译：光纤网络
公开(公告)号：JPS60192926A
公开(公告)日：1985-10-01
申请号：JP4879284
申请日：1984-03-14
申请人： Yokogawa Hokushin Electric Corp
发明人： IWAOKA HIDETO , AKIYAMA KOUJI
IPC分类号： G02B6/28 , G02F1/31
CPC分类号： G02F1/31
摘要： PURPOSE:To realize an optical fiber network in simple constitution by using a changeover switch having by-passing function and high switching speed and small in insertion loss. CONSTITUTION:A light transmission path 1 that leads the first input light 11, a light transmission path 2 that leads the second input light 12 which is an output signal of own station and the first electro-optical element 3 in which direction of an optic axis is as shown by the arrow A and to which light 11, 12 that passed the light transmission paths 1, 2 projects are provided in the light changeover switch. Further, the second electro-optical element 4 stuck to the element 3 through a boundary face 5 and opposite in direction of optic axis, electrodes 6, 7 that generates an electric field parallel to the optic axis in the elements 3, 4, a light transmission path 8 having a center axis on the same line with the center line of above-mentioned transmission path 1 and the coincident center axis intersects the boundary face 5 obliquely, and a light transmission path 9 having a center axis deviated to the opposite side of the light transmission path 2 are provided.
摘要翻译：目的：通过使用具有旁路功能和高切换速度，插入损耗小的转换开关，实现简单结构的光纤网络。构成：引导第一输入光11的光传输路径1，引导作为本台的输出信号的第二输入光12的光传输路径2和第一电光元件3的光轴方向如箭头A所示，并且通过光传输路径1,2的光11,12设置在光转换开关中。此外，第二电光元件4通过边界面5与光轴方向相反的元件3，在元件3,4中产生平行于光轴的电场的电极6,7，光具有与上述传输路径1的中心线在同一直线上的中心轴和一致的中心轴的传输路径8倾斜地与边界面5相交，并且具有偏转到相反侧的光轴9 设置有光传输路径2。

2. 发明专利

JPS60189732A Optical switch for optical network 失效
标题翻译：光网络光开关
公开(公告)号：JPS60189732A
公开(公告)日：1985-09-27
申请号：JP4505184
申请日：1984-03-09
申请人： Yokogawa Hokushin Electric Corp
发明人： OOTE AKIRA , AKIYAMA KOUJI
IPC分类号： H04B10/27 , G02F1/31 , H04B10/00 , H04B10/038 , H04B10/07 , H04B10/275
CPC分类号： G02F1/31
摘要： PURPOSE:To increase a switch speed by putting an optical switch in repeat operation with a control voltage when the operation of each station is normal, and lowering the control voltage to zero and by-passing all outputs from leading stations during abnormal operation. CONSTITUTION:The transmission part 1012 of a station 101 outputs a signal from an LED to an optical switch 91. A control part 1013 applies the control voltage to the electrode of the optical switch 91. When respective stations are in normal operation, optical switches 91-93 lead all light beams from leading stations to receivers 1013 with the control voltage from a control part 1013 and also lead all light beams from transmission parts 1012 to following stations. When some station operates abnormally, the voltage from its control part 1013 drops to 0V and light from the leading station is all guided to the following station. Consequently, even if one station is shut down, all signals by-pass the station with high efficiency, so station intervals are increased. Further, optical network switches which has a fast switch speed and small insertion loss are realized.
摘要翻译：目的：通过在每个工作台正常工作时，通过控制电压将光开关置于重复操作状态，并在异常运行期间将控制电压降低到零，旁路所有输出，从而提高开关速度。构成：站101的发送部1012将来自LED的信号输出到光开关91.控制部1013向光开关91的电极施加控制电压。当各台站正常工作时，光开关91 -93将来自前端站的所有光束引导到具有来自控制部分1013的控制电压的接收机1013，并且还将来自发射部分1012的所有光束引导到后续站。当一些工作站异常运行时，其控制部分1013的电压下降到0V，引导站的光线全部被引导到下一个工作站。因此，即使一个站被关闭，所有的信号都以高效率绕过站，所以站间隔增加。此外，实现了具有快速开关速度和小插入损耗的光网络交换机。

3. 发明专利

JPS60188922A Optical switch 失效
标题翻译：光开关
公开(公告)号：JPS60188922A
公开(公告)日：1985-09-26
申请号：JP4437684
申请日：1984-03-08
申请人： Yokogawa Hokushin Electric Corp
发明人： AKIYAMA KOUJI
IPC分类号： G02F1/055 , G02F1/035
CPC分类号： G02F1/035
摘要： PURPOSE:To execute switching of light at a high speed by providing two electrooptical elements, providing an electrode which is provided on its surface and generates an electric field in the element, and applying a voltage signal to this electrode. CONSTITUTION:A titled optical switch is provided with optical fibers 1, 2 for leading the first and the second input lights I1, I2, ''SELFOC'' lenses 3, 4, which are coupled with the optical fibers 1, 2, respectively, and condense input lights from the optical fibers 1, 2, respectively, the first and the second electrooptical elements 5, 6 in which lights from the lenses 3, 4 are applied to its incident surfaces 51, 61, a beam splitter surface 7, and an electrode 8 for generating an electric field in the electrooptical elements 5, 6. In case a control voltage is ''0''V, the optical input I1 goes to an optical output O1, the optical input I2 goes to an optical output O2 and is outputted, and when the control voltage is applied, the optical input I1 and the optical input I2 are switched to the optical output O2 and the optical output O1, respectively, and outputted.
摘要翻译：目的：通过提供两个电光元件来高速切换光，提供在其表面上提供的电极，并在该元件中产生电场，并向该电极施加电压信号。标准：标题光开关设有光纤1,2，用于分别引导与光纤1,2耦合的第一和第二输入光I1，I2，“SELFOC”透镜3,4，并分别将来自透镜3,4的光施加到其入射表面51,61的分束器表面7的第一和第二电光元件5,6的第一和第二电光元件5,6分别从光纤1,2冷凝输入光，以及用于在电光元件5,6中产生电场的电极8.在控制电压为“0”V的情况下，光输入端I1进入光输出端O1，光输入端I2进入光输出端O2 并输出，并且当施加控制电压时，光输入I1和光输入I2分别切换到光输出O 2和光输出O 1并被输出。

4. 发明专利

JPS59173709A Physical quantity measuring system 失效
标题翻译：物理量测系统
公开(公告)号：JPS59173709A
公开(公告)日：1984-10-01
申请号：JP4818783
申请日：1983-03-23
申请人： Yokogawa Hokushin Electric Corp
发明人： AKIYAMA KOUJI , IWAOKA HIDETO
IPC分类号： G01B11/00 , G01B21/00 , G01D5/244 , G01D5/245 , G01D5/26 , G01D5/353 , G01D5/38
CPC分类号： G01D5/38
摘要： PURPOSE:To raise a read resolution of an optical scale by counting a 1/4 split pulse at the time of a high speed, executing an analog split by setting a square root of a square sum of a sine wave which is 90 deg. out-of-phase, as a reference voltage, and executing an interpolation, at the time of a low speed. CONSTITUTION:An out-of-phase interference light is photodetected from an optical scale which moves in accordance with a physical quantity, and a sine signal, and a cosine signal which is 90 deg. out-of-phase from said signal are outputted from amplifiers 21, 22, respectively, and converted to pulses by comparators 23, 24. These pulses are applied, a direction discriminator 25 generates a pulse of a resolution of 1/8 of a scale pitch whose synchronization to a moving direction signal is split to 1/4, and a high resolution pulse is counted by a counter 26, and outputted as it is at the time of moving at a high speed. On the other hand, at the time of a low speed, a signal having a good sensitivity of sine or cosine passing through a switching circuit 34 is brought to analog split by a distortionless DC reference voltage by a square root of a square sum of sine and cosine signals by square operators 27, 28, a square root circuit 33, etc., A/D-converted, and a counting value of the counter 26 is interpolated. According to them, a read resolution of an optical scale is raised.
摘要翻译：目的：通过在高速时计数1/4分频脉冲来提高光刻尺的读取分辨率，通过设置90度的正弦波的平方和的平方根来执行模拟分割。异相，作为参考电压，并且在低速时执行插值。构成：从根据物理量，正弦信号和90度的余弦信号移动的光学刻度检测出异相干涉光。来自所述信号的异相分别从放大器21,22输出，并由比较器23,24转换成脉冲。这些脉冲被施加，方向鉴别器25产生刻度的1/8的分辨率的脉冲与移动方向信号同步的音调被分割为1/4，高分辨率脉冲由计数器26计数，并在高速移动时原样输出。另一方面，在低速时，具有通过开关电路34的正弦或余弦的良好灵敏度的信号通过无失真的直流基准电压以正弦的平方和的平方根进行模拟分频并且由平方运算器27,28，平方根电路33等进行余弦信号，进行A / D转换，并且内插计数器26的计数值。根据它们，提高了光学刻度的读取分辨率。

5. 发明专利

JPS58207020A Photoelectric converter 失效
标题翻译：光电转换器
公开(公告)号：JPS58207020A
公开(公告)日：1983-12-02
申请号：JP8848782
申请日：1982-05-25
申请人： Yokogawa Hokushin Electric Corp
发明人： OOTE AKIRA , AKIYAMA KOUJI
IPC分类号： H01L31/042 , G02B27/10 , G02B27/14
CPC分类号： G02B27/144 , G02B27/145 , Y02E10/52
摘要： PURPOSE:To obtain a stable output having a high conversion efficiency with a simple constitution, by separating a light outputted from an optical fiber with plural semi-transmission planes and respectively receiving the separated lights with plural photoelectric conversion elements connected in series. CONSTITUTION:A part of a light supplied to a multistage prism 4 is reflected by semi-transmitting planes 41-4n and the rest is transmitted. Each of the reflected light is irradiated upon the corresponding photoelectric cells 51-5n, and the light transmitted through the semi-transmitting planes are irradiated upon a photoelectric cell 50 after it is totally reflected by a total reflection plane 5. The reflectivity of each semi-transmitting plane is determined so that all the irradiating light strengths of each photoelectric cell become equal. When such arrangement is applied, an optical energy can be efficiently converted into an electrical energy and the influence of the distribution or irradiating light strength can be eliminated even when the distribution is uneven, because the light coming out from an optical fiber 3 is successively separated and irradiated upon the photoelectric cells.
摘要翻译：目的：为了以简单的结构获得具有高转换效率的稳定输出，通过分离具有多个半透射平面的光纤输出的光并分别接收具有串联连接的多个光电转换元件的分离光。构成：提供给多级棱镜4的光的一部分被半透射平面41-4n反射，其余部分被透射。每个反射光照射在相应的光电池51-5n上，并且透射通过半透射平面的光在被全反射面5全反射之后被照射在光电单元50上。每个半透射确定发光面，使得各光电池的照射光强度全部相等。当应用这种布置时，由于从光纤3出来的光被连续分离，所以能够将光能有效地转换成电能，并且即使分布不均匀也可以消除分布或照射光强度的影响并照射到光电池上。

6. 发明专利

JPS6110717A Light-signal to air-pressure-signal converter 失效
标题翻译：光信号到空气压力信号转换器
公开(公告)号：JPS6110717A
公开(公告)日：1986-01-18
申请号：JP13178084
申请日：1984-06-26
申请人： Yokogawa Hokushin Electric Corp
发明人： NOGUCHI MASANORI , AKIYAMA KOUJI
IPC分类号： G01D5/353 , G01D5/26 , G01D5/42 , G01D5/58
CPC分类号： G01D5/58 , G01D5/268
摘要： PURPOSE:To simplify the constitution and to make the configuration compact, by converting two kinds of optical pulse-width signals into an air-pressure-signal through the first and second optical energy absorbing members, the first and second pneumatic switches and a tank. CONSTITUTION:The optical energies of two kinds of optical pulse-width signals including the data in time lengths from optical fibers 11 and 12 are absorbed by absorbing members 21 and 31. One end of a first pneumatic switch 2 is connected to an air pressure feeding source 4, and the other end is connected to a tank 6. One end of a second pneumatic switch 3 is opened, and the other end is connected to the tank 6. The part between the two terminals of the switches 2 and 3 is turned ON and OFF by the deformation of the members 21 and 31 by the absorption of the optical energy. An air pressure signal, which is associated with the optical pulse-width signal, is outputted from an output terminal 5 through the tank 6.
摘要翻译：目的：为了简化结构并使结构紧凑化，通过第一和第二光能吸收构件，第一和第二气动开关和罐将两种光脉冲宽度信号转换成空气压力信号。构成：包括来自光纤11和12的时间长度的数据的两种光脉冲宽度信号的光学能量被吸收部件21和31吸收。第一气动开关2的一端连接到气压进给源4，另一端连接到罐6.第二气动开关3的一端打开，另一端连接到罐6.开关2和3的两个端子之间的部分被转动通过元件21和31的光学能量的吸收导致的ON和OFF。与光脉冲信号相关联的气压信号通过箱6从输出端子5输出。

7. 发明专利

JPS59164914A Optical scale reading apparatus 失效
标题翻译：光学测量装置
公开(公告)号：JPS59164914A
公开(公告)日：1984-09-18
申请号：JP3995183
申请日：1983-03-10
申请人： Yokogawa Hokushin Electric Corp
发明人： AKIYAMA KOUJI , IWAOKA HIDETO
IPC分类号： G01B11/02 , G01D5/38
CPC分类号： G01D5/38
摘要： PURPOSE:To obtain an optical scale reading apparatus simple in constitution, good in operability and having ultra-high resolving power, by a mechanism that a reflective type scale is used as a scale and laser beam incident to the scale is enlarged while 90 deg.-phase difference is formed by utilizing beam phase delay by the reflection of a half mirror. CONSTITUTION:The output beam of a semiconductor laser 21 is incident to a scale 23 through a lens 22. + or - primary diffraction beams are reflected by mirrors 24, 25 and, after passed through a half mirror 26, mixed and interfered by a second half mirror 27. The beams from the mirror 27 are converted to electric signals by light receiving elements 28, 29. The phase difference of the signals at the light receiving elements 28, 29 is determined only by the phase delay by the reflections of - primary diffraction beam and + primary diffraction beam at the half mirror 27 while the phase delay is determined by the incident angle of the incident beam and the angle of a polarization surface. When the polarization surface is parallel to the incident surface, the incident angle is 75 deg. while the outputs of the elements 28, 29 come to sine waves having phase difference of 90 deg. and, by analogue interpolation, ultra-high resolving power is obtained.
摘要翻译：目的：为了获得简单的结构，良好的可操作性和超高分辨能力的光学刻度读取装置，通过使用反射型刻度作为刻度的机构，并且入射到刻度尺的激光束在90度时增大。通过半反射镜的反射利用光束相位延迟来形成相位差。构成：半导体激光器21的输出光束通过透镜22入射到刻度23上。+或 - 初级衍射光束被反射镜24,25反射，并且在通过半透半反镜26之后被第二透镜来自反射镜27的光束被光接收元件28,29转换成电信号。光接收元件28,29处的信号的相位差仅由相位延迟由主 - 衍射光束和+一次衍射光束，同时相位延迟由入射光束的入射角和偏振面的角度决定。当偏振面平行于入射面时，入射角为75度。而元件28,29的输出达到相位差为90度的正弦波。并且通过模拟插值获得超高分辨率的功率。

8. 发明专利

JPS5724817A Reading device for optical type scale 失效
标题翻译：用于光学类型尺寸的读取装置
公开(公告)号：JPS5724817A
公开(公告)日：1982-02-09
申请号：JP10103580
申请日：1980-07-23
申请人： Yokogawa Hokushin Electric Corp
发明人： IWAOKA HIDETO , AKIYAMA KOUJI
IPC分类号： G01B9/02 , G01B11/00 , G01D5/38 , G06K7/016
CPC分类号： G01D5/38
摘要： PURPOSE:To simplify a constitution, by a method wherein an interference light by a primary diffraction light of a laser light projected to a scale is detected by 4 light-receiving elements displaced in position by 90 deg. respectively. CONSTITUTION:A light from a laser light source 30 is collected to a scale 30 through a half mirror 31 and lens L10. A zero-th order light, out of diffraction lights, is chekced by means of a stopper 32, the balancing diffraction lights are collected by means of a lens 10, and beat pattern S due to the primary diffraction light is produced at a screen 34 through a half mirror 31. The opening ratio of the lens L10 is appropriately set thereupon so that the secondary diffraction light and upward is prevented from bumping against a screen 30. The beat pattern is detected by means of light-receiving elements d1-d4 displaced in position by 90 deg.. The output is inputted as signals PA-PD to a controller 35 through buffer amplifiers A-D, signals (PA-Pc), corresponding to a moving distance of a scale 33, are outputted from an output terminal OUT1, and a signal in the moving direction of the scale 33 is outputted from an OUT2 utilizing a phase difference between (PA-Pc) and (PB- PD). Thereby, simplification of the constitution is realized.
摘要翻译：目的：为了简化构成，通过以下方式简化构成：通过在位置移位90度的4个受光元件检测由投影到标尺的激光的主衍射光所产生的干涉光。分别。构成：来自激光光源30的光通过半透半反镜31和透镜L10被收集到刻度尺30上。由衍射光衍射出的零级光借助于止动器32而被击倒，平衡衍射光通过透镜10收集，并且在屏幕34处产生由于初级衍射光引起的拍子图案S 透镜L10的开口率适当地设定在其上，使得二次衍射光和向上的光被防止与屏幕30碰撞。拍摄图案通过受光元件d1-d4移位而被检测输出通过缓冲放大器AD作为信号PA-PD输入到控制器35，对应于比例尺33的移动距离的信号（PA-Pc）从输出端OUT1输出，并且使用（PA-Pc）和（PB-PD）之间的相位差从OUT2输出标尺33的移动方向上的信号。由此，能够实现简化结构。

9. 发明专利

JPS59163517A Optical scale reader 失效
标题翻译：光学读码器
公开(公告)号：JPS59163517A
公开(公告)日：1984-09-14
申请号：JP3863983
申请日：1983-03-09
申请人： Yokogawa Hokushin Electric Corp
发明人： AKIYAMA KOUJI , IWAOKA HIDETO
IPC分类号： G01D5/38 , G01B11/02 , G01D5/347
CPC分类号： G01D5/34715
摘要： PURPOSE:To reduce the influence of dust, etc., to simplify the constitution, and to improve the operability by using a scale of a reflection type, enlarging a diameter of an optical beam irradiated to the scale, and also making a phase difference of 90 degrees by utilizing a phase lag of light by a reflection of a half mirror. CONSTITUTION:Light outputted from a semiconductor laser 20 is set to an angle (or parallel light) for condensing light onto a photodetector by a lens L21. In this case, the polarization plane is made vertical to the paper surface. This light is separated and divided into two directions by a half mirror M21. Transmitted light l1 of the half mirror M21 is made incident at an angle of theta1 to a scale 21. Reflected light l2 of the half mirror M21 passes through a 1/4 wavelength plate 22, and thereafter, is made incident to the scale 21 at an incident angle theta1. When the angle of the 1/4 wavelength plate 22 is set so that the quick axis and the slow axis become 45 degrees against the polarization plane of incident light, light passing through the 1/4 wavelength plate becomes circularly polarized light.
摘要翻译：目的：为了减少灰尘等的影响，为了简化构成，通过使用反射型的尺度来提高可操作性，扩大照射到标尺的光束的直径，并且使相位差通过半反射镜的反射利用光的相位滞后90度。构成：从半导体激光器20输出的光被设定为通过透镜L21将光聚光到光检测器上的角度（或平行光）。在这种情况下，偏振面垂直于纸面。该光被半反射镜M21分离并分成两个方向。半反射镜M21的透射光l1以θ1的角度入射到刻度21上。半反射镜M21的反射光12通过1/4波长板22，然后通过1/4波长板22入射到刻度盘21 入射角θ1。当1/4波长板22的角度被设定为使得快轴和慢轴相对于入射光的偏振面成45度时，穿过1/4波长板的光成为圆偏振光。

10. 发明专利

JPS59105730A Optical transmission system 失效
标题翻译：光传输系统
公开(公告)号：JPS59105730A
公开(公告)日：1984-06-19
申请号：JP21605782
申请日：1982-12-09
申请人： Yokogawa Hokushin Electric Corp
发明人： AKIYAMA KOUJI
IPC分类号： H04B10/80 , H02J17/00
CPC分类号： H04B10/807
摘要： PURPOSE:To attain transmission of both power light and signal light by means of a single optical fiber by setting mirrors having different transmission and reflection factors at both ends of an optical fiber and obtaining a difference of wavelength between the power light and the signal light related to the physical quantity. CONSTITUTION:The power light of a wavelength lambda1 delivered from a light source 21 is condensed by a lens 22 at the side of a reception terminal 2 and transmits nearly 100% through a dichroic mirror 24. Then the power light is made incident to an end of an optical fiber 3 and supplied to a transmission terminal 1 via the fiber 3. The power light of the wavelength lambda1 radiated from the other end of the fiber 3 transmits nearly 100% through a dichroic mirror 15 at the side of the terminal 1 and irradiated to a photoelectric converting means TB to be converted into the electric power. While the signal light of a wavelength lambda2 radiated from an end of the fiber 3 is reflected nearly 100% by the mirror 24 and received by a photodetecting element 23 to be converted into an electric signal. The pulse signal converted into an electric signal is sent to a signal processing circuit (not shown in the diagram) for display of a signal of measured physical quantity, etc.
摘要翻译：目的：通过在光纤两端设置具有不同透射和反射因子的反射镜，通过单根光纤实现功率光和信号光的传输，并获得功率光与信号光相关的波长差到物理量。构成：从光源21传送的波长λ1的功率光由接收端子2侧的透镜22会聚，并通过分色镜24透射近100％。然后将功率光入射到一端并经由光纤3提供给发送端子1.从光纤3的另一端射出的波长λ1的功率光通过端子1侧的分色镜15透射近100％，照射到光电转换装置TB以转换成电力。而从光纤3端射出的波长λ2的信号光被反射镜24反射近100％，被受光元件23接收，转换为电信号。转换成电信号的脉冲信号被发送到信号处理电路（图中未示出），以显示测量物理量的信号等。

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