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31. 发明专利

JPS5311045A LIGHT CIRCUIT ELEMENT 失效
公开(公告)号：JPS5311045A
公开(公告)日：1978-02-01
申请号：JP8619176
申请日：1976-07-19
申请人： MITSUBISHI ELECTRIC CORP
发明人： HAMANAKA KOUICHI , KURODA KENICHI , NISHIKAWA SATORU
IPC分类号： G02B6/122 , G02B6/13 , H01P3/16
摘要： PURPOSE:To form an optically coupling region and an optical coupler without difference, by forming an intermediate layer between a main light transmitting path and an auxiliary light transmitting path in a laminate type light coupler and injecting ions in the intermediate layer.

32. 发明专利

JPS533252A OPTICAL COUPLING ELEMENT 失效
公开(公告)号：JPS533252A
公开(公告)日：1978-01-12
申请号：JP7747276
申请日：1976-06-29
申请人： MITSUBISHI ELECTRIC CORP
发明人： HAMANAKA KOUICHI , KURODA KENICHI , NISHIKAWA SATORU
IPC分类号： H01P5/08 , G02B6/122 , H01P5/00
摘要： PURPOSE:To reduce the step gap of the intermediate layer as well as to elevate the coupling effeciency by means of establishing the refractive index of each element to a specified value in an optical coupling element to be formed fom a principal and auxiliary photoconductive wave guides, intermediate layer and so on.

33. 发明专利

JPS5789196A MEASURING DEVICE FOR LIGHT 失效
公开(公告)号：JPS5789196A
公开(公告)日：1982-06-03
申请号：JP16416380
申请日：1980-11-20
申请人： MITSUBISHI ELECTRIC CORP
发明人： HISAMA KAZUO , TAI SHIYUUICHI , ARANISHI TOSHIO , HAMANAKA KOUICHI
IPC分类号： G08C25/00 , G08C23/00

34. 发明专利

JPS5782723A Measuring device for oscillation 失效
标题翻译：用于振荡的测量装置
公开(公告)号：JPS5782723A
公开(公告)日：1982-05-24
申请号：JP15998080
申请日：1980-11-12
申请人： Mitsubishi Electric Corp
发明人： TAI SHIYUUICHI , HISAMA KAZUO , ARANISHI TOSHIO , HAMANAKA KOUICHI
IPC分类号： G01P3/36 , G01H9/00 , G01S17/58
CPC分类号： G01H9/00
摘要： PURPOSE:To eliminate the need for recalibration in principle by widening and stabilizing a dynamic range mechanically by measuring oscillation by utilizing Doppler effect on laser light. CONSTITUTION:Laser light from a laser light source 19 is separated into light incident to an ultrasonic diffraction cell 20 through a beam splitter 22a, and light incident to an oscillation sensor part 16 through the beam splitter 22a, a lens 23b, an optical fiber 2a, a beam splitter 22b, and an optical fiber 2c. The light incident to the oscillation sensor part 16 is reflected by a mirror fitted to a weight in the oscillation sensor part 16. If an oscillation body 10 oscillates, the weight oscillates corresponding to the oscillation Doppler effect on incident light from the optical fiber 2c after being reflected by the said mirror is given in proportion to the oscillation speed of the weight to cause a frequency shift. This light and the primary diffracted light of the cell 20 are mixed by a beam splitter 22b to be guided to an optical receiver 24 through an optical fiber 2d, thus performing heterodyne detection.
摘要翻译：目的：通过在激光上利用多普勒效应，通过测量振荡来扩大和稳定动态范围，从而在原理上消除了重新校准的需要。构成：来自激光光源19的激光通过分束器22a分离成入射到超声波衍射单元20的光，通过分束器22a入射到振荡传感器部16的光，透镜23b，光纤2a 分束器22b和光纤2c。入射到振荡传感器部分16的光被安装在振动传感器部分16中的重物的反射镜反射。如果振荡体10振荡，则重量相应于来自光纤2c的入射光的振荡多普勒效应振荡由所述反射镜反射的比例与重量的振荡速度成比例地给出，以引起频移。单元20的该光和主衍射光被分束器22b混合，以通过光纤2d被引导到光接收器24，从而进行外差检测。

35. 发明专利

JPS5779472A Optical fiber probe for laser doppler velocimeter 失效
标题翻译：激光多普勒飞行器光学探头
公开(公告)号：JPS5779472A
公开(公告)日：1982-05-18
申请号：JP15497680
申请日：1980-11-04
申请人： Mitsubishi Electric Corp
发明人： TAI SHIYUUICHI , HISAMA KAZUO , ARANISHI TOSHIO , HAMANAKA KOUICHI
IPC分类号： G01P5/00 , G01S7/48 , G01S7/481 , G02B6/00
CPC分类号： G01S7/481
摘要： PURPOSE:To improve sensitivity by intensifying scattered light or to measure the velocity of flow at a distance from a probe with high sensitivity by providing a refractivity distribution type lens to the top of an optical fiber, then condensing or collimating emitted light. CONSTITUTION:A refractivity distribution type lens 6a whose one end is tapered is provided in contact with the emission end of an optical fiber 10, and the surface of the tapered part is mirror-finished 7. Instead of the abve, a pi/2-cut refractivity distribution type lens 6b is provided in contact with the emission end of the optical fiber 10, and a transparent member 8 whose one end is tapered and mirror-finished 7 is further provided in contact with the emission end. Consequently, emitted light 4 is focused on a desired point or made into a desired parallel beam of luminous flux to improve sensitivity by increasing the intensity of the scattered light by scattering particles 3 or to measure even the velocity of flow considerably apart from a probe with high sensitivity.
摘要翻译：目的：通过向光纤顶部提供折射率分布型透镜，通过强化散射光或通过高灵敏度的探头距离探头的流速来提高灵敏度，然后冷凝或准直发射的光。构成：将一端呈锥形的折射率分布型透镜6a设置成与光纤10的发射端接触，并且锥形部的表面被镜面加工7.代替pi / 2- 切割折射率分布型透镜6b设置成与光纤10的发射端接触，并且一端呈锥形的透明构件8和反射镜7进一步与发射端接触。因此，发射光4聚焦在期望的点上或被制成期望的平行光束，以通过散射粒子3增加散射光的强度来提高灵敏度，或者甚至测量与具有灵敏度高。

36. 发明专利

JPS5766323A Device for measuring vibration 失效
标题翻译：用于测量振动的装置
公开(公告)号：JPS5766323A
公开(公告)日：1982-04-22
申请号：JP14148980
申请日：1980-10-09
申请人： Mitsubishi Electric Corp
发明人： TAI SHIYUUICHI , HISAMA KAZUO , ARANISHI TOSHIO , HAMANAKA KOUICHI
IPC分类号： G01H9/00
CPC分类号： G01H9/006
摘要： PURPOSE:To measure vibration purely optically in an electric equipment without providing an electronic circuit in the electric equipment. CONSTITUTION:The light from a light transmitter 10 passes optical fiber 12, a beam splitter 11, and optical fiber 13, is converted into a parallel beam by a distributed index lens 15, and enters into a mirror 16. The mirror 16 is fixed to a weight 17 which is attached to a plate spring 19. The weight 17 and the plate spring 19 constitutes an inertia system. Rubber 18 attached to both sides of the plate spring 19 works as a braking damper. When the vibration is excited in a vibrator 21, the weight is inclined in response to the vibration. Therefore the amount of light, which is reflected by the mirror 16 and inputted to the optical fiber 13 via a distributed index lens 15, is varied. The reflected light passes the optical fiber 13, the beam splitter 11, and the optical fiber 14. Then it is led to a light receiver 22 and converted into an electrical signal.
摘要翻译：目的：在电气设备中纯粹光学地测量振动，而不在电气设备中提供电子电路。构成：来自光发送器10的光通过光纤12，分束器11和光纤13，由分布式折射率透镜15转换为平行光束，并进入反射镜16.反射镜16固定到重物17连接在板簧19上。重物17和板簧19构成惯性系统。安装在板簧19的两侧的橡胶18作为制动阻尼器。当振动器21中的振动被激发时，重量响应于振动而倾斜。因此，由反射镜16反射并经由分布式折射率透镜15输入到光纤13的光量变化。反射光通过光纤13，分束器11和光纤14.然后被引导到光接收器22并转换成电信号。

37. 发明专利

JPS5723873A Laser doppler speedometer 失效
标题翻译：激光多普勒测速仪
公开(公告)号：JPS5723873A
公开(公告)日：1982-02-08
申请号：JP9890080
申请日：1980-07-18
申请人： Mitsubishi Electric Corp
发明人： HISAMA KAZUO , TAI SHIYUUICHI , ARANISHI TOSHIO , HAMANAKA KOUICHI
IPC分类号： G01P5/00 , G01S7/48 , G01S17/58
CPC分类号： G01S17/58
摘要： PURPOSE:To achieve high performance, by detecting one branch light with an optical receiver in heterodyne detection after the laser emission light is branched into two, and electrically operating the difference between this detected output and that including a speed signal. CONSTITUTION:Laser light from a laser 1 is branched into two at a beam splitter 2, and one light after two branch is introduced to a optical receiver 5' directly. Another light is given to a speed probe 3, and scattered light subject to doppler effect at a measured objective 7 and the reference light are given to another optical receiver. After the output of the receivers 5, 5' is differentially amplified at a differential amplifier 8 and noise by interference between laser modes is rejected, the result is given to a spectrum analyzer 6.
摘要翻译：目的：为了实现高性能，通过在激光发射光分支为两个之后通过外差检测中的光接收器检测一个分支光，并且电操作该检测输出与包括速度信号的差。构成：来自激光器1的激光在分束器2处分支为两个，并且两个分支之后的一个光直接被引入光接收器5'。另一个光被给予速度探测器3，并且在测量的物体7处受到多普勒效应的散射光，并且参考光被给予另一个光学接收器。在接收器5,5'的输出在差分放大器8被差分放大，并且通过激光模式之间的干扰而导致的噪声被拒绝时，结果被给予频谱分析器6。

38. 发明专利

JPS55149903A PHOTO BRANCHING FILTER 失效
公开(公告)号：JPS55149903A
公开(公告)日：1980-11-21
申请号：JP5659279
申请日：1979-05-09
申请人： MITSUBISHI ELECTRIC CORP
发明人： KURODA KENICHI , HAMANAKA KOUICHI
IPC分类号： G02B6/293 , G02B6/34
摘要： PURPOSE:To facilitate installation of optical fiber and enable to branch rays of light with small wavelength difference at high efficiency, by installing 1/2 pitch refractive index distribution type lenses before the output side fiber. CONSTITUTION:Rays of light of which wavelengths are lambda1 and lambda2 propagated through an optical fiber 2 are emitted from the optical fiber 2, and changed to parallel rays of light by means of 1/4 pitch refractive index distribution type lens 5, thus entering a reflection type diffraction grating 1. The rays of light entering the grating 1 are diffracted by angles of diffraction corresponding to wavelengths lambda1 and lambda2, respectively, and enter the lens 5 again, then the rays of light having wavelengths of lambda1 and lambda2 enter 1/2 pitch refractive index distribution type lenses 6 and 7, respectively. Next, rays of light having wavelengths lambda1 and lambda2 are condensed on the exit side which is point-symmetrical to the incident position on the insident side face of diffracted light with respect to the center in leuses 6 and 7, and are respectively radiated into the optical fibers 3 and 4 provided on the exit side, and propagated. In this case, the refractive index of lenses 5-7 may be a multiple by an odd number of 1/4 pitch or 1/2 pitch.

39. 发明专利

JPS5494055A OPTICAL ATTENUATOR 失效
公开(公告)号：JPS5494055A
公开(公告)日：1979-07-25
申请号：JP75878
申请日：1978-01-06
申请人： MITSUBISHI ELECTRIC CORP
发明人： KURODA KENICHI , HAMANAKA KOUICHI , FUJIWARA TAKEJI
IPC分类号： G02B5/00 , G02B6/00
摘要： PURPOSE:To make possible the highly accurate adjustment of attenuation of the light trasmitted by forming a metal film with an oxide thereof. CONSTITUTION:A substrate 1 of SiO2 is formed by the sputtering with a metal film 2 of Ta having a preset thickness, which is coated by an anodization with a resist film 3. That portion, which is not coated with the film 3, is covered with a metal oxide 4 such as Ta2O5. Then, the thickness of the film 2 can be adjusted in the anodization highly accurately by controlling the voltage to be impressed highly accurately. As a result, the attenuation of the light to pass through the films 4 and 2 and the substrate 1 can be adjusted highly accurately. If, incidentally, the oxidized film is formed stepwise, it is possible to provide an optical attenuator which has its attenuation varied highly accurately stepwise.

40. 发明专利

JPS5452562A VARIABLE WAVELENGTH SELECTION FILTER 失效
公开(公告)号：JPS5452562A
公开(公告)日：1979-04-25
申请号：JP11924377
申请日：1977-10-03
申请人： MITSUBISHI ELECTRIC CORP
发明人： FUJIWARA TAKEJI , HAMANAKA KOUICHI
IPC分类号： G02B5/20 , G02B6/12 , G02F1/01 , G02F1/03 , G02F1/05 , G02F1/295
摘要： PURPOSE:To make wavelength selection variable and further provide switching action by making use of the electro-optical effect of corrugation and substrates. CONSTITUTION:4 is a Y-cut LiNbO3 ferrodielectric substrate, 5 is a Ti diffused layer optical guide made through vapor deposition, etc. of Ti thin film, 6 is corrugations made of holography or the like and 7 is a voltage-applying Al electrode mad through vapor deposition, etc. When the light signal mixed with lambda1, lambda2, etc. is propagated in the optical guide 5, the wavelength lambda1 is branched by the corrugations having a diffraction grating width suitable for the Bragg's reflection conditions of the wavelength lambda1. The effective refractive index of the optical guide 5 is changed by applying a certain voltage in the Z axis direction of the substrate to the Al electrode 7. This causes the Bragg's reflection conditions to change even in the corrugation of the same diffraction grating width, thus enabling the signal of the wavelength lambda2 propagating next in correspondence to the change portion of the effective refractive index to be branched. This effective refractive index is variable with the applied voltage, hence the selection of the wavelengths is made variable, thus switching action by On and OFF may be effected.

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