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1. 发明公开

EP0488255A2 Fiber-optic coil and method of manufacturing same 失效
标题翻译： Faseroptische Spule und Herstellungsverfahren。
公开(公告)号：EP0488255A2
公开(公告)日：1992-06-03
申请号：EP91120327.1
申请日：1991-11-27
申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
发明人： Negishi, Hidehiko , Takeuchi, Yoshinori , Kasahara, Yukio , Honjoya, Yoshihiko
IPC分类号： G02B6/44 , G01C19/72
CPC分类号： G02B6/4457 , G01C19/722
摘要： A fiber-optic coil for use as the sensor loop of a fiber-optic gyroscope includes a first optical fiber segment wound as radially successive coiled layers around a coil bobbin in a first region thereof, and a second optical fiber segment wound as radially successive coiled layers around the coil bobbin in an axially adjacent second region thereof. The first and second optical fiber segments are joined to each other through a longitudinal middle portion, which is positioned in the radially innermost coiled layers of the first and second optical fiber segments adjacent to a longitudinal center of said coil bobbin. Each of the first and second optical fiber segments is wound in alternate axial directions in the radially successive coiled layers. The first and second optical fiber segments may be integrally joined to each other by the longitudinal middle portion, or may be separate from, but joined to, each other by a depolarizer across the longitudinal middle portion.
摘要翻译：用作光纤陀螺仪的传感器环路的光纤线圈包括：第一光纤段，其卷绕在其第一区域中围绕线圈架的径向相继的卷绕层;以及第二光纤段，其卷绕成径向连续卷绕在其轴向相邻的第二区域中围绕线圈骨架的层。第一和第二光纤段通过纵向中间部分相互连接，纵向中间部分位于第一和第二光纤段的径向最内部的螺旋层中，邻近所述线圈架的纵向中心。第一和第二光纤段中的每一个在径向连续的卷绕层中以交替的轴向缠绕。第一和第二光纤段可以通过纵向中间部分彼此一体地接合，或者可以通过去偏振器与纵向中间部分分离，而是彼此连接。

2. 发明授权

EP0488255B1 Fiber-optic coil and method of manufacturing same 失效
标题翻译：的光纤线圈和制造过程
公开(公告)号：EP0488255B1
公开(公告)日：1996-03-06
申请号：EP91120327.1
申请日：1991-11-27
申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
发明人： Negishi, Hidehiko , Takeuchi, Yoshinori , Kasahara, Yukio , Honjoya, Yoshihiko
IPC分类号： G02B6/44 , G01C19/72
CPC分类号： G02B6/4457 , G01C19/722

3. 发明公开

EP0488255A3 Fiber-optic coil and method of manufacturing same 失效
标题翻译：光纤线圈及其制造方法
公开(公告)号：EP0488255A3
公开(公告)日：1992-10-28
申请号：EP91120327.1
申请日：1991-11-27
申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
发明人： Negishi, Hidehiko , Takeuchi, Yoshinori , Kasahara, Yukio , Honjoya, Yoshihiko
IPC分类号： G02B6/44 , G01C19/72
CPC分类号： G02B6/4457 , G01C19/722
摘要： A fiber-optic coil for use as the sensor loop of a fiber-optic gyroscope includes a first optical fiber segment wound as radially successive coiled layers around a coil bobbin in a first region thereof, and a second optical fiber segment wound as radially successive coiled layers around the coil bobbin in an axially adjacent second region thereof. The first and second optical fiber segments are joined to each other through a longitudinal middle portion, which is positioned in the radially innermost coiled layers of the first and second optical fiber segments adjacent to a longitudinal center of said coil bobbin. Each of the first and second optical fiber segments is wound in alternate axial directions in the radially successive coiled layers. The first and second optical fiber segments may be integrally joined to each other by the longitudinal middle portion, or may be separate from, but joined to, each other by a depolarizer across the longitudinal middle portion.

4. 发明公开

EP0501002A2 Optic rotation sensing apparatus and related method 失效
标题翻译： Optische Einrichtung zum Messen einer Drehung undzugehörigesVerfahren。
公开(公告)号：EP0501002A2
公开(公告)日：1992-09-02
申请号：EP91113045.8
申请日：1991-08-02
申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
发明人： Negishi, Hidehiko , Takeuchi, Yoshinori , Takei, Yuko , Honjoya, Yoshihiko
IPC分类号： G01C19/72 , G01P3/36 , G01P9/00
CPC分类号： G01C19/721
摘要： An optic rotation sensing apparatus includes a light source (1) emitting light. The light emitted from the light source is transmitted to a sensing loop (6) which provides a phase difference between opposite-direction light waves in response to a rotation. Return light outputted from the sensing loop is transmitted to a photodetector (3). A device (7) modulates a phase of light propagating in the sensing loop. Another device (8) depolarizes light propagating in the sensing loop.
摘要翻译：光学旋转感测装置包括发光的光源。从光源发射的光被传输到感测回路，该感测回路响应于旋转而提供相反方向的光波之间的相位差。从感测回路输出的返回光被传送到光电检测器。器件调制在感测回路中传播的光的相位。另一种器件使传感回路中传播的光去极化。

5. 发明公开

EP0460635A3 Optical phase modulator 失效
标题翻译：光相调制器
公开(公告)号：EP0460635A3
公开(公告)日：1992-05-27
申请号：EP91109188.2
申请日：1991-06-05
申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
发明人： Takeuchi, Yoshinori , Takei, Yuko , Negishi, Hidehiko , Idota, Ken
IPC分类号： G02F1/01 , H01L41/09
CPC分类号： G01C19/722 , G02F1/0134
摘要： An optical phase modulator (10) for use with a fiber optic sensor such as a fiber optic gyroscope includes a piezoelectric vibrator (11) which is asymmetric in at least one cross-sectional shape thereof, a pair of electrodes (14,15) for applying a voltage to said piezoelectric vibrator (11), and an optical fiber (13) joined to at least a portion of said piezoelectric vibrator (11) by adhesive bonding. The piezoelectric vibrator (11) has a cavity (12) defined therein, and one of said electrodes (14) is disposed on a surface of said piezoelectric vibrator which defines said axial cavity (12), the other electrode (15) being disposed on an outer surface of said piezoelectric vibrator (11). The piezoelectric vibrator may be cylindrical, elliptically cylindrical, or planar in shape. The cavity (12) may be cylindrical or elliptically cylindrical in shape.

6. 发明公开

EP1312960A1 Optical transmitting/receiving module and optical transmitting/receiving device comprising the same 审中-公开
标题翻译： Optisches Sende- /Empfänger-Modul und Vorrichtung die diesesenthält
公开(公告)号：EP1312960A1
公开(公告)日：2003-05-21
申请号：EP02025425.6
申请日：2002-11-14
申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD
发明人： Tohgoh, Hitomaro , Asano, Hiroaki , Uchiyama, Hiroo , Kobayashi, Masaki , Negishi, Hidehiko , Ito, Masami , Kuwabara, Masahiro
IPC分类号： G02B6/42 , H04B10/04 , H04B10/06 , H04B10/12
CPC分类号： H04B10/40 , G02B6/4214 , G02B6/4232 , G02B6/4246 , H01L2224/16225 , H01L2224/32225 , H01L2224/73204 , H01L2924/00
摘要： The present invention provides a one-core bidirectional optical transmitting/receiving module for wavelength multiplexing, which does not require optical waveguide fabricated with high precision and which has superb high frequency characteristics and has very low optical and electrical crosstalks and available at low cost. At the middle of an optical fiber 1 buried in a glass substrate 3, a light irradiating portion is provided, which has a wavelength selection filter 2 placed obliquely to the optical fiber. The light irradiating portion is fixed immediately above a backside entrance type photodetection element 4 mounted on a ceramic substrate 6 by flip-clip bonding, and only optical signals with specific wavelength are received. An optical fiber extra portion 7 between a photodetection unit and a light emitting unit has sufficient length, and an end of the optical fiber is optically coupled with the light emitting element. Designed in simplified structure and requiring no optical waveguide, the optical transmitting/receiving module of the invention gives very low optical and electrical crosstalks and provides superb high frequency characteristics.
摘要翻译：本发明提供了一种用于波长复用的单核双向光发射/接收模块，其不需要以高精度制造的光波导，并且具有极好的高频特性并且具有非常低的光和电串扰并且可以以低成本获得。在埋设在玻璃基板3中的光纤1的中间设有具有配置在光纤上的波长选择滤波器2的光照射部。光照射部分通过倒装键合紧固在安装在陶瓷基板6上的背面入射型光检测元件4正上方，并且仅接收具有特定波长的光信号。光检测单元和发光单元之间的光纤额外部分7具有足够的长度，并且光纤的端部与发光元件光学耦合。本发明的光发射/接收模块以简化的结构设计并且不需要光波导，提供非常低的光和电串扰并且提供极好的高频特性。

7. 发明授权

EP0501002B1 Optic rotation sensing apparatus and related method 失效
标题翻译：用于测量旋转和相关联的方法的光学装置
公开(公告)号：EP0501002B1
公开(公告)日：1996-04-17
申请号：EP91113045.8
申请日：1991-08-02
申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
发明人： Negishi, Hidehiko , Takeuchi, Yoshinori , Takei, Yuko , Honjoya, Yoshihiko
IPC分类号： G01C19/72 , G01P3/36 , G01P9/00
CPC分类号： G01C19/721

8. 发明公开

EP0501002A3 Optic rotation sensing apparatus and related method 失效
标题翻译：光转传感装置及相关方法
公开(公告)号：EP0501002A3
公开(公告)日：1993-07-14
申请号：EP91113045.8
申请日：1991-08-02
申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
发明人： Negishi, Hidehiko , Takeuchi, Yoshinori , Takei, Yuko , Honjoya, Yoshihiko
IPC分类号： G01C19/72 , G01P3/36 , G01P9/00
CPC分类号： G01C19/721
摘要： An optic rotation sensing apparatus includes a light source (1) emitting light. The light emitted from the light source is transmitted to a sensing loop (6) which provides a phase difference between opposite-direction light waves in response to a rotation. Return light outputted from the sensing loop is transmitted to a photodetector (3). A device (7) modulates a phase of light propagating in the sensing loop. Another device (8) depolarizes light propagating in the sensing loop.

9. 发明公开

EP0480442A1 Sensing coil and fiber-optic gyroscope using the same 失效
标题翻译： Aufnehmerspule und damit versehener Lichtleitfaserkreisel。
公开(公告)号：EP0480442A1
公开(公告)日：1992-04-15
申请号：EP91117325.0
申请日：1991-10-10
申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
发明人： Takeuchi, Yoshinori , Negishi, Hidehiko , Takei, Yuko
IPC分类号： G01P3/36 , G01C19/72
CPC分类号： G01C19/722
摘要： An optical fiber sensing coil (11) incorporated in a fiber-optic gyroscope has a square shape in cross section with corners rounded so as to avoid a sharp rise in transmission loss and breakage of the sensing coil which would otherwise occur when an optical fiber of the sensing coil is bent acutely. The square sensing coil is capable of providing a greater sensitivity than a conventional hollow cylindrical sensing coil provided that the length of the optical fiber is constant. In addition, the square sensing coil is received closely in a rectangular parallelepipedic box so that the inside space of the box can be used most efficiently.
摘要翻译：结合在光纤陀螺仪中的光纤感测线圈（11）的横截面为正方形，角部为圆形，以避免传输损耗急剧上升和传感线圈的断裂，否则当光纤传感线圈急剧弯曲。只要光纤的长度恒定，该方形感测线圈能够提供比传统的中空圆柱形感测线圈更大的灵敏度。此外，平方检测线圈紧密地接收在长方体框中，从而可以最有效地使用盒子的内部空间。

10. 发明公开

EP0460635A2 Optical phase modulator 失效
标题翻译： Optischer Phasenmodulator。
公开(公告)号：EP0460635A2
公开(公告)日：1991-12-11
申请号：EP91109188.2
申请日：1991-06-05
申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
发明人： Takeuchi, Yoshinori , Takei, Yuko , Negishi, Hidehiko , Idota, Ken
IPC分类号： G02F1/01 , H01L41/09
CPC分类号： G01C19/722 , G02F1/0134
摘要： An optical phase modulator (10) for use with a fiber optic sensor such as a fiber optic gyroscope includes a piezoelectric vibrator (11) which is asymmetric in at least one cross-sectional shape thereof, a pair of electrodes (14,15) for applying a voltage to said piezoelectric vibrator (11), and an optical fiber (13) joined to at least a portion of said piezoelectric vibrator (11) by adhesive bonding. The piezoelectric vibrator (11) has a cavity (12) defined therein, and one of said electrodes (14) is disposed on a surface of said piezoelectric vibrator which defines said axial cavity (12), the other electrode (15) being disposed on an outer surface of said piezoelectric vibrator (11). The piezoelectric vibrator may be cylindrical, elliptically cylindrical, or planar in shape. The cavity (12) may be cylindrical or elliptically cylindrical in shape.
摘要翻译：一种与诸如光纤陀螺仪之类的光纤传感器一起使用的光学相位调制器包括：至少一个截面形状不对称的压电振动器，用于向所述压电振动器施加电压的一对电极纤维通过粘合剂粘合到所述压电振动器的至少一部分上。压电振子具有限定在其中的空腔，并且所述电极中的一个设置在限定所述轴向空腔的所述压电振动器的表面上，另一个电极设置在所述压电振动器的外表面上。压电振动器可以是圆柱形，椭圆柱形或平面形状。空腔的形状可以是圆柱形或椭圆形的。

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