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1. 发明授权

US4581579A Optical magnetic-field measuring apparatus having improved temperature characteristics 失效
标题翻译：具有改善的温度特性的光磁场测量装置
公开(公告)号：US4581579A
公开(公告)日：1986-04-08
申请号：US545643
申请日：1983-10-26
申请人： Kazuyuki Nagatsuma , Hiroyoshi Matsumura , Tsuneo Suganuma , Norio Ohta , Keikichi Ando , Yuzuru Hosoe , Yutaka Sugita
发明人： Kazuyuki Nagatsuma , Hiroyoshi Matsumura , Tsuneo Suganuma , Norio Ohta , Keikichi Ando , Yuzuru Hosoe , Yutaka Sugita
IPC分类号： G01R33/032 , G02F1/09 , G01R33/02 , G02B5/30 , G02F1/29 , G02F1/31
CPC分类号： G01R33/0322
摘要： In a magnetic-field measuring apparatus having a Faraday rotation property, a medium having the Faraday rotation property includes at least one magnetic garnet thin film having a composition represented by a general formula of R.sub.3 (Fe.sub.5-x M.sub.x)O.sub.12 (where R is at least one element selected from a group consisting of La, Sm, Lu, Ca and Bi, or at least two elements selected from the group with Y being added thereto, M is at least one element selected from a group consisting of Ga, Ge, Al, Si, Sc, In and Cr, and a range of x is 0.ltoreq.x.ltoreq.1.5), and magnetized in a direction of light transmission, whereby an overall temperature characteristic of a ratio (4.pi.Ms/Ho) of a saturation flux density 4.pi.Ms to a collapse field Ho of a strip domain of the thin film is improved. The magnetic-field measuring apparatus offers a stable measurement of magnetic-field irrespective of a temperature change.
摘要翻译：在具有法拉第旋转特性的磁场测量装置中，具有法拉第旋转特性的介质包括至少一种具有由通式R3（Fe5-xMx）O12表示的组成的磁性石榴石薄膜（其中R至少为选自La，Sm，Lu，Ca和Bi中的一种元素，或选自添加有Y的基团中的至少两种元素，M为选自Ga，Ge，Al中的至少一种元素，Si，Sc，In和Cr，x的范围为0

2. 发明授权

US4604577A Temperature-compensated magnetic field measuring instrument 失效
标题翻译：温度补偿磁场测量仪
公开(公告)号：US4604577A
公开(公告)日：1986-08-05
申请号：US462765
申请日：1983-02-01
申请人： Hiroyoshi Matsumura , Toshio Katsuyama , Norio Ohta , Tsuneo Suganuma , Kazuyuki Nagatsuma , Yutaka Sugita
发明人： Hiroyoshi Matsumura , Toshio Katsuyama , Norio Ohta , Tsuneo Suganuma , Kazuyuki Nagatsuma , Yutaka Sugita
IPC分类号： G01R33/032 , G02F1/00 , G02F1/09 , G01R33/02 , G02B5/30
CPC分类号： G02F1/0036 , G01R33/0322
摘要： A measuring instrument of magnetic field utilizing Faraday rotation is disclosed in which a medium exhibiting Faraday rotation includes at least one thin magnetic garnet film magnetized in a propagation direction of light and having a composition expressed by a general formula R.sub.3-x Q.sub.x (Fe.sub.5-y M.sub.y)O.sub.12 (where R indicates at least one element selected from a group consisting of Y, La, Lu, Ca, Sm and Bi, Q indicates at least one element selected from a group consisting of Gd, Eu, Er, Tm, Tb, Yb, Ho and Dy, M is at least one element selected from a group consisting of Ga, Al, Ge, Si, Sc, Mn, In, V and Cr, the value of x lies in a range expressed by a formula 0.1.ltoreq.x.ltoreq.3.0, and the value of y lies in a range expressed by a formula 0.ltoreq.y.ltoreq.5.0). According to this instrument, stable measured values are obtained independently of temperature variation.
摘要翻译：公开了利用法拉第旋转的磁场测量仪器，其中显示法拉第旋转的介质包括在光传播方向上被磁化并具有通式R3-xQx（Fe5-yMy）表示的组成的至少一个薄磁石榴石薄膜， O12（其中R表示选自Y，La，Lu，Ca，Sm和Bi中的至少一种元素，Q表示选自由Gd，Eu，Er，Tm，Tb，Yb组成的组中的至少一种元素），Ho和Dy，M是选自Ga，Al，Ge，Si，Sc，Mn，In，V和Cr中的至少一种元素，x的值在由式0.1表示的范围内， = x <= 3.0，y的值位于由公式0表示的范围内。根据该仪器，独立于温度变化获得稳定的测量值。

3. 发明授权

US4570064A Optical D.C. electric-field measuring apparatus with optic sensing means exhibiting both electrooptic and photoelectric effects 失效
标题翻译：具有光电感测装置的光学直流电场测量装置具有电光和光电效应
公开(公告)号：US4570064A
公开(公告)日：1986-02-11
申请号：US513314
申请日：1983-07-13
申请人： Kazuyuki Nagatsuma , Hiroyoshi Matsumura , Toshio Katsuyama , Tsuneo Suganuma
发明人： Kazuyuki Nagatsuma , Hiroyoshi Matsumura , Toshio Katsuyama , Tsuneo Suganuma
IPC分类号： G01R29/08 , G01R15/24 , G01R19/00 , G01R29/12 , G01D5/34
CPC分类号： G01R15/242 , G01R29/12
摘要： An electric-field measuring apparatus utilizing electrooptic effect for measuring the intensity of an electric DC field includes a material exhibiting both electrooptic effect and photoelectric effect or both a material exhibiting the electrooptic effect and a material exhibiting the photoelectric effect which material or materials are irradiated with a continuous light ray of a wavelength capable of inducing the electrooptic effect and an intermittently interrupted light ray of a wavelength capable of inducing the photoelectric effect.
摘要翻译：利用电光效应测量电场的强度的电场测量装置包括既具有电光效应又具有光电效应的材料，或具有电光效应的材料和表现出光电效应的材料，该材料或材料被照射能够引起电光效应的波长的连续光线以及能够引起光电效应的波长的间歇性中断的光线。

4. 发明授权

US4505729A Method of producing optical fiber preform 失效
标题翻译：生产光纤预制棒的方法
公开(公告)号：US4505729A
公开(公告)日：1985-03-19
申请号：US542186
申请日：1983-10-14
申请人： Hiroyoshi Matsumura , Toshio Katsuyama , Tsuneo Suganuma
发明人： Hiroyoshi Matsumura , Toshio Katsuyama , Tsuneo Suganuma
IPC分类号： C03B20/00 , C03B37/012 , C03B37/018 , G02B6/00 , C03C25/02
CPC分类号： C03B37/01248 , C03B37/01217 , C03B37/01225 , C03B37/018 , C03B2203/24 , C03B2203/30
摘要： A method of producing a preform for a single-polarization optical fiber wherein a glass rod to become a core or a glass rod to become a clad is inserted into a quartz tube which has on its inner wall surface a glass thin film to become a clad layer, a glass thin film to become a jacket layer or glass films to become a jacket layer and a clad layer, and wherein under a state under which the internal pressure of the quartz tube is reduced, the quartz tube is heated to become solid, whereby at least one of the clad and the jacket of the optical fiber preform becomes elliptic in cross section.
摘要翻译：一种制造用于单极化光纤的预成型体的方法，其中将成为芯的玻璃棒或成为包层的玻璃棒插入到其内壁表面上具有玻璃薄膜以成为包层的石英管中层，成为护套层的玻璃薄膜或成为护套层和覆盖层的玻璃膜，并且其中在石英管的内部压力降低的状态下，石英管被加热变得固体，由此光纤预制件的包层和护套中的至少一个横截面变为椭圆形。

5. 发明授权

US4828592A Polarization plane maintaining optical fiber fabricating method 失效
标题翻译：偏振平面保持光纤制造方法
公开(公告)号：US4828592A
公开(公告)日：1989-05-09
申请号：US883456
申请日：1986-07-08
申请人： Hiroyoshi Matsumura , Toshio Katsuyama , Tsuneo Suganuma
发明人： Hiroyoshi Matsumura , Toshio Katsuyama , Tsuneo Suganuma
IPC分类号： C03B37/018 , G02B6/10
CPC分类号： C03B37/01807 , C03B37/01869 , G02B6/105 , C03B2203/10 , C03B2203/24 , C03B2203/30
摘要： An optical fiber having an intense polarization plane maintenability is constructed of an optical waveguide having a circular core and a circular cladding, a jacket formed on the outer circumference of the optical waveguide and having an elliptical outer circumference, and a supporting portion formed on the jacket.In order to fabricate the above-specified optical fiber, a preformed rod therefor is prepared by forming the inner wall of an silica glass tube with the jacket and the optical waveguide made of such materials as satisfy a relationship of c.sub.2 /a.gtoreq.200/(100-.gamma.)-1, wherein: letter .gamma. stands for the ellipticity of the outer circumference of the aforementioned jacket; letter c.sub.2 stands for the minor axis of an ellipse; and letter a stands for the radius of the circular optical waveguide, and by subsequently collapsing the aforementioned silica glass tube while having its internal pressure made lower than the atmospheric pressure by 1 to 20 mmH.sub.2 O.
摘要翻译：具有强偏振平面可维护性的光纤由具有圆形芯和圆形包层的光波导构成，形成在光波导的外圆周上并具有椭圆形外周的外套和形成在外壳上的支撑部。为了制造上述规定的光纤，通过形成具有护套的石英玻璃管的内壁和由满足关系式c2 / a> / = 200的材料制成的光波导来制备预成型棒 /（100-gamma）-1，其中：字母gamma代表上述外套的外圆周的椭圆率; 字母c2表示椭圆的短轴; 字母a表示圆形光波导的半径，并且随后将其内压低于大气压的上述石英玻璃管塌缩1〜20mmH 2 O。

6. 发明授权

US4426129A Optical fiber and method of producing the same 失效
标题翻译：光纤及其制造方法
公开(公告)号：US4426129A
公开(公告)日：1984-01-17
申请号：US223747
申请日：1981-01-09
申请人： Hiroyoshi Matsumura , Toshio Katsuyama , Tsuneo Suganuma
发明人： Hiroyoshi Matsumura , Toshio Katsuyama , Tsuneo Suganuma
IPC分类号： C03B37/012 , C03B37/018 , C03C13/04 , G02B6/10 , G02B5/14 , C03B19/00
CPC分类号： G02B6/105 , C03B37/01217 , C03B37/018 , C03B37/01861 , C03C13/045 , C03B2201/10 , C03B2203/10 , C03B2203/12 , C03B2203/22 , C03B2203/30
摘要： A glass layer is formed inside a silica glass tube and another glass layer having a refractive index higher than that of the abovementioned glass layer is formed on said glass layer. After these glass layers are formed, one end of the glass tube is collapsed. While the internal pressure of the glass tube is being reduced below the atmospheric pressure, the glass tube is caused to collapse by heating, thereby yielding a preform for an optical fiber. The optical fiber produced from this preform has the difference in the refractive indices of the two orthogonal major axes of at least 1.6.times.10.sup.-4 and maintains the linear polarization plane.
摘要翻译：在石英玻璃管内形成玻璃层，在玻璃层上形成折射率高于上述玻璃层的玻璃层。在形成这些玻璃层之后，玻璃管的一端收缩。当玻璃管的内部压力降低到低于大气压力时，玻璃管通过加热而塌陷，从而产生用于光纤的预成型件。由该预成型件制造的光纤具有至少1.6×10 -4的两个正交长轴的折射率差并保持线偏振面。

7. 发明授权

US4483617A Optical gyroscope with large propagation constant difference 失效
标题翻译：具有较大传播常数差的光学陀螺仪
公开(公告)号：US4483617A
公开(公告)日：1984-11-20
申请号：US354187
申请日：1982-03-03
申请人： Hiroyoshi Matsumura , Toshio Katsuyama , Tsuneo Suganuma
发明人： Hiroyoshi Matsumura , Toshio Katsuyama , Tsuneo Suganuma
IPC分类号： G01C19/72 , G01P3/36 , G01B9/02 , G01C19/64
CPC分类号： G01C19/721
摘要： In an optical gyroscope comprising a coil of an optical fiber having opposite ends on which linearly polarized input light beams are incident and from which output light beams are derived which create an interference pattern to be detected, the optical fiber has orthogonal principal axes along which the light beams propagate at a large propagation constant difference. The application of the linearly polarized input light beams to the opposite ends of the optical fiber coil is such that the polarization plane of the linearly polarized light beam coincides with the same principal axis on the opposite ends. Thus, polarization characteristics of the output light beam from the optical fiber coil becomes time invariant and the light paths for the two light beams coincide with each other. In particular, in order to minimize the influence of external disturbances, the optical fiber has a structure defined by.vertline.N.sub.x -N.sub.y .vertline.>.lambda./R.sub.owhere N.sub.x and N.sub.y are refractive indices of said optical fiber in directions of the orthogonal principal axes, R.sub.o is the radius of said optical fiber coil, and .lambda. is the wavelength of the light beam.
摘要翻译：在包括光纤的线圈的光学陀螺仪中，所述光纤的线圈具有相对的端部，线偏振的输入光束入射，从中导出输出光束，产生要检测的干涉图案，所述光纤具有正交的主轴，光束以大的传播常数差传播。将线偏振输入光束施加到光纤线圈的相对端，使得线偏振光束的偏振平面与相对端的相同主轴重合。因此，来自光纤线圈的输出光束的偏振特性变得不变，并且两个光束的光路彼此一致。特别地，为了最小化外部干扰的影响，光纤具有由| Nx-Ny>λ/ Ro定义的结构，其中Nx和Ny是所述光纤在正交主轴的方向上的折射率，Ro 是所述光纤线圈的半径，λ是光束的波长。

8. 发明授权

US4406518A Single-mode-transmission optical fiber and a method of manufacturing the same 失效
标题翻译：单模传输光纤及其制造方法
公开(公告)号：US4406518A
公开(公告)日：1983-09-27
申请号：US236509
申请日：1981-02-20
申请人： Hiroyoshi Matsumura , Toshio Katsuyama , Tsuneo Suganuma
发明人： Hiroyoshi Matsumura , Toshio Katsuyama , Tsuneo Suganuma
IPC分类号： C03B37/018 , C03B37/025 , G02B6/00 , G02B6/02 , G02B6/028 , G02B5/172
CPC分类号： G02B6/03633 , C03B37/0253 , G02B6/0281 , C03B2203/22 , C03B2203/24 , G02B6/03611
摘要： A single-mode-transmission optical fiber comprises a core of a radius a having an arbitrary (non constant) refractive index distribution n(r) in the radial direction r, the index distribution being expressed by n.sup.2 (r)=n.sub.1.sup.2 {1-2.DELTA..sub.o f(r)}, and a cladding having a constant refractive index n.sub.2, the radius a of the core being: ##EQU1## In these expressions, n.sub.1 denotes a maximum refractive index of the core, .lambda. denotes a transmission light wavelength, ##EQU2## and a normalized frequency V is expressed by ##EQU3## Y is a solution Y in the case where X and Y are solutions of simultaneous equations: ##EQU4## of a function which is expressed by: ##EQU5##
摘要翻译：单模传输光纤包括半径为a的芯，其径向r具有任意（非常数）折射率分布n（r），该折射率分布由n2（r）= n12 {1- 2的（r）}的折射率，以及具有恒定折射率n2的包层，芯的半径a为：在这些表达式中，n1表示芯的最大折射率，λ表示透射光波长，并且归一化频率V由表示，在X和Y是联立方程式的解的情况下，Y是解Y：由表示的函数的图像> + TR

9. 发明授权

US5270987A Magneto-optical recording and reproducing method, magneto-optical memory apparatus and magneto-optical recording medium therefor 失效
标题翻译：磁光记录和再现方法，磁光存储装置及其磁光记录介质
公开(公告)号：US5270987A
公开(公告)日：1993-12-14
申请号：US509743
申请日：1990-04-17
申请人： Toshimitsu Kaku , Shigeru Nakamura , Masahiko Takahashi , Toshio Niihara , Harukazu Miyamoto , Norio Ohta , Takeshi Nakao , Hirofumi Sukeda , Masahiro Ojima , Takashi Toyooka , Tsuneo Suganuma , Fumiyoshi Kirino , Yoshinori Miyamura
发明人： Toshimitsu Kaku , Shigeru Nakamura , Masahiko Takahashi , Toshio Niihara , Harukazu Miyamoto , Norio Ohta , Takeshi Nakao , Hirofumi Sukeda , Masahiro Ojima , Takashi Toyooka , Tsuneo Suganuma , Fumiyoshi Kirino , Yoshinori Miyamura
IPC分类号： G11B11/105 , G11B11/00
CPC分类号： G11B11/10584 , G11B11/10536 , G11B11/10545 , G11B11/10552 , G11B11/10558 , G11B11/10593 , G11B11/10571
摘要： A magnetic field of a polarity corresponding to information to be recorded is applied while a recording spot having a high energy is irradiated to a magneto-optical recording medium to record domains representing the information along a track. The recorded domains are read out by a reproducing spot having a lower energy than the recording spot and a high resolution power along the track. A recording head has an optical system for irradiating the recording spot having the high energy to the magneto-optical recording medium and a magnetic head for applying a magnetic field having a polarity thereof switched in accordance with the information to be recorded, to an irradiation area of the recording spot, a reproducing head has an optical system for irradiating the reproducing spot having the low energy by a laser beam having a wavelength of no larger than 600 nm and a magneto-optical signal detector for detecting a displacement of a polarization plane of a reflected light of the reproducing spot to read out the recording domains. The magneto-optical recording medium is made of a recording film having a multi-layer structure of alternate lamination of metal layers and dielectric layers.
摘要翻译：将具有高能量的记录点照射到磁光记录介质上，记录与记录信息对应的极性的磁场，记录表示信息沿着轨迹的域。记录的区域由具有比记录点更低的能量的再现点和沿着轨道的高分辨率电力读出。记录头具有用于向磁光记录介质照射具有高能量的记录点的光学系统和用于根据要记录的信息将其极性切换的磁场施加到照射区域的记录点，再现头具有用于通过具有不大于600nm的波长的激光束照射具有低能量的再现点的光学系统和用于检测偏振面的位移的磁光信号检测器再现点的反射光读出记录区域。磁光记录介质由具有金属层和电介质层的交替叠层的多层结构的记录膜制成。

10. 发明授权

US4324576A Method for producing optical glass 失效
标题翻译：光学玻璃的制造方法
公开(公告)号：US4324576A
公开(公告)日：1982-04-13
申请号：US209711
申请日：1980-11-21
申请人： Iwao Matsuyama , Kenzo Susa , Shin Satoh , Tsuneo Suganuma
发明人： Iwao Matsuyama , Kenzo Susa , Shin Satoh , Tsuneo Suganuma
IPC分类号： C01B33/16 , C03B8/02 , C03B19/12 , C03B37/016 , C03C3/04 , C03C13/04 , C03C3/06
CPC分类号： C01B33/163 , C03B19/12 , C03B37/016 , C03C13/045 , C03C3/04 , Y02P40/57 , Y10S65/901
摘要： A method for producing optical glass, which comprises charging a mixed solution capable of forming a high-silica-content gel by hydrolysis reaction into a vessel, the inner wall face of which is composed of a material unwettable to the mixed solution, such as a fluorocarbon resin or silicone resin, causing gelation of the mixed solution in the vessel, drying the obtained gel, and heating and sintering the obtained dry gel. When electrodes are placed in the mixed solution at the gelation step and an electric voltage is applied, the time required for formation of the gel is shortened. Furthermore, at the gel-drying step, if the amount of materials evaporated from the gel is detected or the weight of the gel is measured, the detected amount of the evaporated materials or the change of the weight of the gel is fed back to a factor regulating the drying speed, such as the drying temperature to control the drying speed to an appropriate level.
摘要翻译：一种光学玻璃的制造方法，其特征在于，将能够通过水解反应形成高二氧化硅含量凝胶的混合溶液装入容器内，该容器的内壁面由不能混合的溶液的材料构成，氟树脂或有机硅树脂，使混合溶液凝胶化，容器干燥，加热烧结得到的干凝胶。当在凝胶化步骤中将电极置于混合溶液中并施加电压时，形成凝胶所需的时间缩短。此外，在凝胶干燥步骤中，如果检测到从凝胶蒸发的材料的量或测量凝胶的重量，则将检测到的蒸发材料量或凝胶重量的改变反馈至调节干燥速度的因素，如干燥温度，将干燥速度控制在适当的水平。

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