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1. 发明专利

JPH04198905A OPTICAL FIBER COIL 失效
公开(公告)号：JPH04198905A
公开(公告)日：1992-07-20
申请号：JP33240190
申请日：1990-11-28
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： NEGISHI HIDEHIKO , TAKEUCHI YOSHINORI , KASAHARA MASAO
IPC分类号： G01C19/72 , G02B6/00
摘要： PURPOSE:To obtain stable output irrespective of ambient temperature change by winding an optical fiber on an optical fiber coil symmetrically in a radial direction and a center axis direction. CONSTITUTION:The optical fiber 1 constituting the optical fiber coil 3 is wound so that the parts which are mutually in an equal distance from the center part in the longitudinal direction of the fiber 1 may be nearly at the same position in the radial direction in the optical fiber coil 3 and symmetrical with the center part of the coil in the center axis direction. A temperature difference between the optical fibers 1 wound around the respective layers of the coil is reduced in spite of the ambient temperature change, and a phase error in an optical interference output signal is made extremely small and the stable output is obtained irrespective of the ambient temperature change.

2. 发明专利

JPH0424666B2 失效
公开(公告)号：JPH0424666B2
公开(公告)日：1992-04-27
申请号：JP5272681
申请日：1981-04-07
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： KASAHARA MASAO , INABA RITSUO , WASA KYOTAKA
IPC分类号： G01R19/25 , G01R19/00

3. 发明专利

JPH0392805A INSPECTION DEVICE FOR PHOTOSEMICONDUCTOR AND PHOTOSEMICONDUCTOR ELEMENT 失效
公开(公告)号：JPH0392805A
公开(公告)日：1991-04-18
申请号：JP23097189
申请日：1989-09-06
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： NEGISHI HIDEHIKO , OSHIMA MASAAKI , KASAHARA MASAO , IMAMURA HIROKO
IPC分类号： G02B6/42 , G02B7/02 , H01L31/0232
摘要： PURPOSE:To control a vertical position with high accuracy by using a U-shaped groove with high working accuracy for a fixing part for a condenser lens. CONSTITUTION:The U-shaped groove 15 with high machining accuracy is formed in the reverse surface of the condenser lens 18 for controlling the position of an optical lens on a stem main body 12 with high accuracy and the optical lens 18 is stably and accurately fixed by using the U-shaped part of the groove 15. Further, the lens bottom surface of the optical condenser lens 18 is supported on the U-shaped groove at three points and the vertical and horizontal fixing positions of the optical condenser lens 18 are accurately controlled. Consequently, the fixing position of the optical condenser lens 18 can accurately be controlled.

4. 发明专利

JPH02121381A SEMICONDUCTOR LASER MODULE 失效
公开(公告)号：JPH02121381A
公开(公告)日：1990-05-09
申请号：JP27332788
申请日：1988-10-31
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： KASAHARA MASAO , NEGISHI HIDEHIKO
IPC分类号： H01S5/00
摘要： PURPOSE:To obtain a stable semiconductor laser module by a method wherein a feedback type oscillator formed of a surface acoustic wave element is provided, a part of an output of the semiconductor laser is made to irradiate a piezoelectric element formed on the feedback type oscillator substrate, and the change of an oscillating frequency of the feedback type oscillator can be monitored. CONSTITUTION:Two intersected fork electrodes 81 and 82 are provided onto the substrate of an oscillator composed of a surface acoustic wave element 7, the electrodes 81 and 82 are connected to the output terminal and the input terminal of an amplifier 9 respectively to constitute a so-called feedback type oscillator, and the output of the amplifier 9 is outputted to an output terminal 11 through the intermediary of a capacitor 10. Now, when a laser beam 13 is made to irradiate a substrate 12 of the surface acoustic wave element 7, the substrate 2 changes in elastic constant to make surface acoustic wave, which advances from an interdigital electrode 81 to the electrode 82, change in its propagation velocity. In result, the feedback transmission function of a feedback type oscillator changes and an output oscillation frequency changes. As this change is the change of frequency, it can be processed as a digital output and also as an analog output by the use of a diode.

5. 发明专利

JPS6418324A DATA TRANSMISSION EQUIPMENT 失效
公开(公告)号：JPS6418324A
公开(公告)日：1989-01-23
申请号：JP17516287
申请日：1987-07-14
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： KAWAKAMI KATSURA , MISAWA MOTOHIRO , HAYAKAWA YOSHIHIRO , ONODERA CHIKA , WAKABAYASHI SHINICHI , NEGISHI HIDEHIKO , KASAHARA MASAO
IPC分类号： H04J14/00 , H04J14/02
摘要： PURPOSE:To attain high speed transmission of a clock signal and a data signal by sending 1st and 2nd optical signals converted by an electrooptic conversion means while synthesizing them, demultiplexing the result depending on frequencies by a demultiplex means and converting them into electric signals separately. CONSTITUTION:In applying a clock to a clock signal line 101, it is converted into the intensity signal of light by a 2nd electrooptic conversion means 131 and the result is outputted to an optical fiber 161. Similarly, the data is converted into the light intensity signal by a 1st electrooptic conversion means 132 and outputted to the optical fiber 162. The both are synthesized by a synthesizer 150 and the result is outputted to a transmission means 120. Since the stimulated frequency of laser diodes 131, 132 is designed to be different from each other such as f0 and f1, they can be separated even after the mixing. The light signal to be sent is separated by a frequency filter of a demultiplex means 151 and sent to optical fibers 163, 164. The optical signals are converted into electric signals by photodiodes 141, 142 and clock and data signals are obtained.

6. 发明专利

JPS63313994A OPTICAL SIGNAL SWITCH 失效
公开(公告)号：JPS63313994A
公开(公告)日：1988-12-22
申请号：JP14965687
申请日：1987-06-16
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： MISAWA MOTOHIRO , HAYAKAWA YOSHIHIRO , KAWAKAMI KATSURA , NEGISHI HIDEHIKO , WAKABAYASHI SHINICHI , KASAHARA MASAO
IPC分类号： H03K17/78 , H04B10/2507 , H04B10/27 , H04Q3/52
摘要： PURPOSE:To switch at a high speed and to make suitable for single mode fiber transmission line by providing with an optical/electric conversion part, an electric/optical conversion part, and a control part to selectively drive a specific one or plural electric/optical conversion parts according to a prescribed control signal. CONSTITUTION:The optical/electric conversion part 100 comprises an O/E conversion means 102 and a branch means 108. The electric/optical conversion parts 103, 104 function to convert an electrical signal to an optical signal only when a bias current is supplied. The control part 107 outputs, based on a control signal inputted from the external, a bias current as a control signal to specify either or the conversion systems 103, 104 to drive selectively. In such a way, since no mechanical switching means is used, the switching of the transmission line can be realized speedily and surely. Also, the switch can be used effectively for single mode fiber transmission line of narrow connection tolerance.

7. 发明专利

JPS6035228A INFRARED-RAY RADIATION THERMOMETER 失效
公开(公告)号：JPS6035228A
公开(公告)日：1985-02-23
申请号：JP14405483
申请日：1983-08-05
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： OUCHI KENZOU , INABA RITSUO , KASAHARA MASAO
IPC分类号： G01J5/02 , G01J5/44
摘要： PURPOSE:To improve sensitivity to a large extent without changing thermal response, by supporting an elastic-surface-wave element substrate by each end surface, which is in parallel with the propagating direction of the elastic surface wave, and making the propagating distance of the elastic surface wave large. CONSTITUTION:An LiNbO3 single crystal plate is used as a piezoelectric substrate 13. The propagating direction of an elastic surface wave is the direction of a Z axis. Cross finger type electrodes 11 and 12 are formed by an evapolated Al film with a thickness of about 0.15mum. The interval between the electrodes is about 6mm.. As supporting tables 15, e.g., a glass plate with a thickness of 100mum is cut into parts with a width of 1mm. and used. The substrate 13 is supported by each end surface, which is in parallel with the propagating direction of the elastic surface wave. The interval is about 2.5mm.. In this constitution, heat flowed into the substrate due to the input of infrared light flows out in the direction perpendicular to the propagating direction of the elastic surface wave regardless of the propagation distance of the elastic surface wave. Thus the propagation distance of the elastic surface wave can be made long without deteriorating thermal time constant, and the sensitivity can be improved to a large extent.

8. 发明专利

JPS6034085A MANUFACTURE OF ELEMENT FOR INFRARED RADIATION THERMOMETER 失效
公开(公告)号：JPS6034085A
公开(公告)日：1985-02-21
申请号：JP14405183
申请日：1983-08-05
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： OUCHI KENZOU , INABA RITSUO , KASAHARA MASAO
IPC分类号： H01L35/34 , H01L37/02
摘要： PURPOSE:To improve workability and yield by bonding and manufacturing a piezoelectric substrate, a dummy board and an abrasive jig in succession by using two kinds of heat softening resins having different softening points and mounting an element to a package. CONSTITUTION:A large number of crossed finger type electrodes are formed on a piezoelectric substrate 14. A heat softening resin is applied on a dummy glass plate 12 to form a first heat softening resin layer 13, and the substrate 14 is bonded on the layer 13 so that the surface if directed downward. The glass plate 12 is bonded with an abrasive jig 10 by using a second heat softening resin layer 11 composed of a heat softening resin having a lower softening point. The back 15 of the substrate 14 is abraded up to predetermined plate thickness. Only the layer 11 is heated and softened to separate the jig 10 and the glass plate 12. The substrate 14 is cut and separated to element size as the substrate 14 and the glass plate 12 are left as they are bonded, thus manufacturing elements. The element is mounted to a package, and the layer 13 is heated and softened and the glass plate 12 is removed. Accordingly, the element can be formed without being cracked with excellent workability.

9. 发明专利

JPS59136876A Form recognizer of optical image 失效
标题翻译：光学图像形式识别器
公开(公告)号：JPS59136876A
公开(公告)日：1984-08-06
申请号：JP1178283
申请日：1983-01-27
申请人： Matsushita Electric Ind Co Ltd
发明人： INABA RITSUO , KASAHARA MASAO , WASA KIYOTAKA
IPC分类号： H01L41/08 , G06K9/00 , G06T1/00
摘要： PURPOSE: To recognize at a high speed the form of an optical image in real time by using the correlation signal between a pattern of a projected image on a semiconductor and an elastic wave on a piezoelectric base board.
CONSTITUTION: A wave of a specific frequency f
1 is generated and transmitted as an elastic wave within a piezoelectric base boand 1 and in the right direction from an exciting electrode 2. This transmitted wave generates an optical conduction current within a semiconductor 4. This current is generated in response to the pattern form of a projected image of a pattern detecting object 7. While a wave of a frequency f
2 corresponding to pattern of the image of a detection object is applied to an exciting electrode 3 of the base board 1 from a sequence programmer and a programmable oscillator 5. As a result, a sharp peak voltage is generated at an output part 15. Based on this peak voltage, a pattern is recognized at a high speed and in real time.
COPYRIGHT: (C)1984,JPO&Japio
摘要翻译：目的：通过使用半导体上的投影图像的图案与压电基板上的弹性波之间的相关信号，高速地识别光学图像的形式。构成：将特定频率f1的波形作为弹性波产生并作为弹性波发送到压电基座1中，并从激励电极2向右方向传播。该透射波在半导体4内产生光导电流。该电流为响应于图案检测对象7的投影图像的图案形式产生的。对应于检测对象的图像的图案的频率f2的波从序列被施加到基板1的激励电极3 编程器和可编程振荡器5.结果，在输出部分15处产生尖锐的峰值电压。基于该峰值电压，以高速和实时地识别图案。

10. 发明专利

JPS5931423A Apparatus for detecting infrared ray 失效
标题翻译：检测红外线的装置
公开(公告)号：JPS5931423A
公开(公告)日：1984-02-20
申请号：JP13941982
申请日：1982-08-10
申请人： Matsushita Electric Ind Co Ltd
发明人： KASAHARA MASAO , INABA RITSUO
IPC分类号： G01J5/10 , G01J1/00 , G01J5/44 , G01J5/62
CPC分类号： G01J5/62
摘要： PURPOSE:To obtain a highly sensitive thermal type infrared detector generating a digital output signal, by providing a shutter and an up-and-down counter for interrupting the infrared detector from infrared rays. CONSTITUTION:An output of an infrared-ray detector 31 is made into a pulse by introducing into a pulse formation circuit 32. On one hand, radiant infrared rays are irradiated from the object to be measured from the front of the infrared- ray detector 31 and a shutter 33 is provided on the way. This shutter 33 is driven by a shutter opening and shutting driving circuit 34. An output of the circuit 32 is inputted to an up-and-down counter 35 and an output pulse from the circuit 32 is counted by a timing signal from the circuit 34. The difference of the pulse number of a closed time output pulse and that of an opened time output pulse is counted by this counter 35. This measured output is introduced into a microcomputer 36 and is calculated and this result is displayed on a display device 37. In this manner, a highly sensitive thermal type infrared detector is obtained.
摘要翻译：目的：获得产生数字输出信号的高灵敏度热式红外探测器，通过提供快门和上下计数器来中断红外探测器的红外线。结构：红外线检测器31的输出通过引入到脉冲形成电路32中而形成脉冲。一方面，从红外线检测器31的前方从被测量物体照射辐射红外线并且在路上设置有闸门33。该快门33由快门打开和关闭驱动电路34驱动。电路32的输出被输入到上下计数器35，并且来自电路32的输出脉冲由来自电路34的定时信号计数通过该计数器35对闭合时间输出脉冲的脉冲数与打开的时间输出脉冲的脉冲数的差进行计数。该测量输出被引入到微计算机36中，并被计算，并将该结果显示在显示装置37上以这种方式获得高灵敏度的热型红外检测器。

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