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1. 发明授权

US4741595A Optical transmission device 失效
标题翻译：光传输装置
公开(公告)号：US4741595A
公开(公告)日：1988-05-03
申请号：US754928
申请日：1985-07-15
申请人： Seiichi Onoda , Yasumasa Koakutsu , Masaaki Kusano , Tamio Takeuchi , Syouji Yamada , Masao Yano , Ichiro Ikushima , Kiyohide Miyake , Toshiki P. Tanaka
发明人： Seiichi Onoda , Yasumasa Koakutsu , Masaaki Kusano , Tamio Takeuchi , Syouji Yamada , Masao Yano , Ichiro Ikushima , Kiyohide Miyake , Toshiki P. Tanaka
IPC分类号： G02B6/08 , G02B6/42
CPC分类号： G02B6/08 , G02B6/4204 , G02B6/4206 , G02B6/4249
摘要： In a device for coupling optically a light source with an optical transmission path, the present invention interposes an optical transmission path structure at the center of the distance between them in order to improve the optical coupling efficiency. The optical transmission path structure consists of a plurality of light transmitting elements arranged so that the light from the light source is received by the structure as incident light and is sent out therefrom as outgoing light at an outgoing angle which is equal to the angle of incidence. The light transmitting elements are arranged in parallel with the optical path of the light emitted from the light source and according to this arrangement, the system of the present device becomes equivalent to a system in which the positions of the light source are located at points of .+-.l.sub.1 from the light outgoing surface of the optical transmission path structure. When used with an optical fiber, the optical transmission path structure is disposed such that the distance from the light source to one end face of the optical transmission path structure is the same as the distance from the end face of the means for transmitting to the other end face of the optical transmission path structure.
摘要翻译：为了提高光耦合效率，在将光源与光传输路径光学连接的装置中，本发明将光传输路径结构设置在它们之间的距离的中心。光传输路径结构由多个透光元件组成，其布置成使得来自光源的光被该结构作为入射光被接收，并作为出射光从出射光发射出来，其出射角等于入射角。光传输元件与从光源发射的光的光路平行地布置，并且根据这种布置，本装置的系统变得等同于其中光源的位置位于 +/- l1从光传输路径结构的光出射表面。当与光纤一起使用时，光传输路径结构被设置为使得从光源到光传输路径结构的一个端面的距离与从传输装置的端面到另一端的距离相同光传输路径结构的端面。

2. 发明授权

US4184744A Optical fiber 失效
标题翻译：光纤
公开(公告)号：US4184744A
公开(公告)日：1980-01-22
申请号：US737266
申请日：1976-11-01
申请人： Seiichi Onoda , Toshiki P. Tanaka , Masao Sumi
发明人： Seiichi Onoda , Toshiki P. Tanaka , Masao Sumi
IPC分类号： G02B6/028 , G02B6/036 , G02B5/14
CPC分类号： G02B6/03627 , G02B6/0288
摘要： In order to make the transmission loss of the lowest order leaky mode over the transmission length 10dB or more, an optical fiber for optical transmission is constructed of a cladding layer whose refractive index is constant, an intermediate layer which has a constant refractive index lower than the refractive index of the cladding layer, and a core whose refractive index is continuously varied so as to be the highest at the central part and to be substantially equal to that of the cladding layer at the peripheral part, and the thickness of the intermediate layer is 0.1-1 times the radius of the core.
摘要翻译：为了使发送长度为10dB以上的最低级泄漏模式的传输损耗为10dB以上，光传输用光纤由折射率恒定的覆层构成，折射率恒定的中间层低于包层的折射率和折射率连续变化的芯在中心部分最高，并且与外围部分的包层的折射率基本相等，中间层的厚度是芯的半径的0.1-1倍。

3. 发明授权

US4206967A Optical fiber 失效
标题翻译：光纤
公开(公告)号：US4206967A
公开(公告)日：1980-06-10
申请号：US921220
申请日：1978-07-03
申请人： Seiichi Onoda , Shojiro Kawakami , Shigeo Nishida , Toshiki P. Tanaka , Tsuneo Suganuma , Masao Sumi
发明人： Seiichi Onoda , Shojiro Kawakami , Shigeo Nishida , Toshiki P. Tanaka , Tsuneo Suganuma , Masao Sumi
IPC分类号： C03C13/04 , G02B5/14
CPC分类号： G02B6/03627 , C03C13/04 , C03C13/046
摘要： A three-layer structure optical fiber comprises a first transparent dielectric core layer having a relatively high refractive index, a second transparent dielectric intermediate layer having a relatively low refractive index and a third transparent dielectric cladding layer having an intermediate refractive index wherein the parameter of the optical fiber is determined as follows: ##EQU1## where B is the bandwidth of the signal to be transmitted, z is the transmission distance, C is the velocity of light in vacuum, .eta.o is the refractive index of the core layer, q is the ratio of refractive indices between the core layer and second layer, V = normalized frequency, ##EQU2## p is the ratio of refractive index between the core layer and the third layer, and U.sub.11 =2,405.
摘要翻译：三层结构光纤包括具有较高折射率的第一透明介质芯层，具有较低折射率的第二透明介电中间层和具有中等折射率的第三透明电介质包覆层，其中，光纤确定如下：其中B是要发射的信号的带宽，z是传输距离，C是真空中的光速，eta是芯层的折射率，q是核心层和第二层之间的折射率的比率，V =归一化频率，p是核心层和第三层之间的折射率比，U11 = 2,405。

4. 发明授权

US4185890A Optical transmission line 失效
标题翻译：光传输线
公开(公告)号：US4185890A
公开(公告)日：1980-01-29
申请号：US734310
申请日：1976-10-20
申请人： Seiichi Onoda , Toshiki P. Tanaka , Tsuneo Suganuma , Koji Ishida , Masao Sumi
发明人： Seiichi Onoda , Toshiki P. Tanaka , Tsuneo Suganuma , Koji Ishida , Masao Sumi
IPC分类号： G02B6/028 , G02B6/036 , G02B5/14
CPC分类号： G02B6/03627 , G02B6/0288
摘要： In order to expand the product between the transmission length and the transmission bandwidth of an optical fiber for use in the optical communication and to facilitate the connection between the optical fibers, the optical fiber is made of transparent materials of three concentric layers of a core whose refractive index gradually decreases in the radial direction from the center, an intermediate layer which has a uniform refractive index lower than the varying refractive index of the core, and a cladding which has a uniform refractive index substantially equal to the lowest refractive index of the core.
摘要翻译：为了在光通信中使用的光纤的传输长度和传输带宽之间扩大产品并且促进光纤之间的连接，光纤由具有核心的三个同心层的透明材料制成，折射率从中心沿半径方向逐渐减小，具有低于芯的折射率变化的折射率均匀的中间层和具有基本上等于芯的最低折射率的均匀折射率的包层。

5. 发明授权

US4030809A Optical connector 失效
标题翻译：光连接器
公开(公告)号：US4030809A
公开(公告)日：1977-06-21
申请号：US594363
申请日：1975-07-09
申请人： Makoto Onishi , Katsuyuki Nagano , Toshiki P. Tanaka , Sadao Matsuoka , Mitsuo Tanaka
发明人： Makoto Onishi , Katsuyuki Nagano , Toshiki P. Tanaka , Sadao Matsuoka , Mitsuo Tanaka
IPC分类号： H01R4/50 , F16G11/00 , G02B6/24 , G02B6/38 , H02G15/08 , G02B5/16
CPC分类号： G02B6/3806 , G02B6/3839 , G02B6/3854 , G02B6/3858 , G02B6/3885
摘要： In an optical fiber connector, the pair of optical fibers to be connected together are placed end-to-end in a linear groove which has been formed on a lateral surface of a central cylinder. They are held fixed by a holding member which is fitted in the groove and is moved towards the optical fibers according to the rotation of a hollow cylinder which externally touches the central cylinder, whereby the optical fibers can be connected with a precise alignment and accordingly with a low optical power loss.
摘要翻译：在光纤连接器中，要连接在一起的一对光纤被端对端放置在已经形成在中心圆筒的侧面上的直线槽中。它们由固定在槽中的保持构件固定，并且根据外部接触中心圆筒的中空圆柱体的旋转而朝向光纤移动，由此可以将光纤与精确的对准连接，并因此与光功率损耗低。

6. 发明授权

US4337995A Switch for optical transmission lines 失效
标题翻译：光传输线路切换
公开(公告)号：US4337995A
公开(公告)日：1982-07-06
申请号：US92513
申请日：1979-11-08
申请人： Toshiki P. Tanaka , Minoru Maeda , Satoshi Aoki , Shoji Yamada
发明人： Toshiki P. Tanaka , Minoru Maeda , Satoshi Aoki , Shoji Yamada
IPC分类号： G02B26/08 , G02B6/35 , G02B7/26
CPC分类号： G02B6/3502 , G02B6/3546 , G02B6/3562 , G02B6/3572
摘要： Disclosed is an optical switch for changing over the mode connecting two optical transmission lines comprising two optical fibers directly to each other and the mode connecting an optical communication device between the two transmission lines. In this optical switch, in order to reduce the insertion loss, first, second, third and fourth optical fibers, each having an optical connector attached to one end, are attached to a substrate so that at least parts of the respective optical fibers are fixed to the substrate, and the ends of the first and second fibers are arranged on the substrate movably so that the end face of the first optical fiber confronts the end faces of the second and third optical fibers and the end face of the second optical fiber confronts the end faces of the first and fourth optical fibers.
摘要翻译：公开了一种光开关，用于将连接包括两根光纤的两根光纤的两条光纤线路连接在一起的模式，以及连接两条传输线路之间的光通信设备的模式。在该光开关中，为了减少插入损耗，将具有安装在一端的光连接器的第一，第二，第三和第四光纤连接到基板，使得各个光纤的至少一部分固定并且第一和第二光纤的端部可移动地布置在基板上，使得第一光纤的端面面对第二和第三光纤的端面，并且第二光纤的端面面对第一和第四光纤的端面。

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