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1. 发明专利

JPS6290607A OPTICAL CONNECTOR 失效
公开(公告)号：JPS6290607A
公开(公告)日：1987-04-25
申请号：JP23223185
申请日：1985-10-17
申请人： NEC CORP , NIPPON TELEGRAPH & TELEPHONE , FUJITSU LTD , HITACHI LTD
发明人： MATSUMURA FUMIO , UMEKI KAORU , SHINTAKU TOSHIHIRO , SUZUKI NOBUO , MASUKO TAKAYUKI , YAMADA YOSHIHARU
IPC分类号： G02B6/38 , G02B6/32
摘要： PURPOSE:To decrease connection loss, etc., within the rough size tolerance of a sleeve and ferrules by adding a function which expands a projection light beam from an optical fiber core into a nearly parallel light beam to both ferrules of an adapter and a plug. CONSTITUTION:The adapter 10 is fixed in a panel 1 and the plug 20 is fixed in a panel 2 prior to the mechanical coupling between the panels 1 and 2. THen, the ferrule 21 of the plug 20 fixed to the panel 2 is inserted into the sleeve 13 of the adapter 10 fixed to the panel 1 when the panels 1 and 2 are coupled mechanically. At the same time, the tip part of the housing of the plug 20 is interposed between the sleeve 13 of the plug 20 and the tip part of a housing. Namely, when the adapter 10 and plug 20 are coupled mechanically, that is completed by the mechanical coupling between the panels 1 and 2. In this state, the gap between the ferrule 11 on the side of the adapter 10 and the ferrule 21 on the side of the plug 20 is set to several mm. Consequently, connection loss and variance based on a shift between the axes of the ferrules are reduced greatly.

2. 发明专利

JPS6125104A Compound lens 失效
标题翻译：化妆镜
公开(公告)号：JPS6125104A
公开(公告)日：1986-02-04
申请号：JP14425684
申请日：1984-07-13
申请人： Hitachi Ltd
发明人： ONODA SEIICHI , KOAKUTSU YASUMASA , KUSANO MASAAKI , TAKEUCHI TAMIO , YANO MASAO , YAMADA YOSHIHARU , IKUSHIMA ICHIRO , MIYAKE KIYOHIDE , TANAKA KATSUKI
IPC分类号： G02B5/00 , G02B3/00 , G02B6/00
摘要： PURPOSE: To improve the fiber coupling efficiency by optical transmission line insertion by providing plural optical transmission lines whose incidence angle and projection angle are equal to each other, and arranging the optical lines in parallel to an optical axis.
CONSTITUTION: A spot light source 1 having light intensity P is provided and optical lines 3 and 4 incident on an optical path 2 at angles θ
1 and θ
2 propagate in the optical transmission line 2 in the thickness direction while reflected totally by the internal reflecting plate 9. Projection line from the optical transmission line 2 is split into light beams 5 and 5', and 6 and 6' having projection angles ±θ
1 and θ
2 , and they have equally divided light intensity. This optical system is equivalent to a system in which two spot light sources 7 and 8 having light intensity P/2 are positioned ±l
1 away from the projection surface of an optical path. Therefore, when outputs of the light sources are coupled with a fiber through the optical transmission line, the distance betwen the light source and the fiber is shortened equivalently and the fiber coupling efficiency is improved.
COPYRIGHT: (C)1986,JPO&Japio
摘要翻译：目的：通过提供入射角和投影角彼此相等的多条光传输线，并将光线平行于光轴设置，通过光传输线插入来提高光纤耦合效率。构成：提供具有光强度P的点光源1，入射到光路2上的角度θ1和θ2的光线3和4在光传输线2中沿厚度方向传播，同时由内反射板9全部反射来自光传输线2的投射线被分成具有投影角度+或-θ1和θ2的光束5和5'以及6和6'，并且它们具有等分的光强度。该光学系统等效于其中具有光强度P / 2的两个光源7和8距离光路的投影表面位于+或-1.1的系统。因此，当光源的输出通过光传输线与光纤耦合时，光源和光纤之间的距离等效缩短，光纤耦合效率提高。

3. 发明专利

JPS60198507A BIDIRECTIONAL OPTICAL TRANSMISSION DEVICE AND BIDIRECTIONAL TRANSMISSION SYSTEM USING IT 失效
公开(公告)号：JPS60198507A
公开(公告)日：1985-10-08
申请号：JP5423384
申请日：1984-03-23
申请人： HITACHI LTD
发明人： IMOTO KATSUYUKI , TAKAI ATSUSHI , AOKI SATOSHI , YOSHIYA TSUTOMU , YAMADA YOSHIHARU
IPC分类号： H04B10/00 , G02B6/28 , G02B6/293 , G02B6/34 , H04B10/2507
摘要： PURPOSE:To facilitate bidirectional communication with one optical fiber and lights different in wavelength by forming interference film filters, which have optical coupling and branching functions, on rod lenses and providing these rod lenses in the up side and the down side. CONSTITUTION:Interference film filters F23 and 24 and similar filters 28 and 29 are attached to rod lenses 22 and 27, which are provided in both ends of an optical fiber 7, through spacers 25 and 30. The F23 permits the light having a wavelength lambda1 to transmit through, but reflects lights having wavelengths lambda2 and lambda3, and the F24 permits lights having wavelengths lambda1 and lambda2 to transmit through, but reflects the light having the wavelength lambda3, and the F28 permits lights having wavelengths lambda1 and lambda3 to transmit through, but reflects the light having the wavelength lambda2, and F29 permits the light having the wavelength lambda3 to transmit through, but reflects lights having wavelengths lambda1 and lambda2. For example, the light having the wavelength lambda1 from a semiconductor laser LD1 passes a lens 2, the F23, the spacer 25, the F24, the rod lens 22, the fiber 7, the rod lens 27, the F28, and the spacer 30 and is reflected on the F29 and is made incident on an optical fiber 9 in the condensation position. Similarly, the light having the wavelength lambda2 from a laser LD1'' is made incident on an optical fiber 35, and the light having the wavelength lambda3 from a laser LD1' is made incident on an optical fiber 33. Thus, bidirectional communication with wavelengths lambda1, lambda2, and lambda3 is performed easily by only one optical fiber 7.

4. 发明专利

JPH0574048B2 失效
公开(公告)号：JPH0574048B2
公开(公告)日：1993-10-15
申请号：JP6186584
申请日：1984-03-29
申请人： HITACHI LTD
发明人： IMOTO KATSUYUKI , TAKASE MASAHIKO , AOKI SATOSHI , YOSHA TSUTOMU , YAMADA YOSHIHARU
IPC分类号： H04B10/00 , G02B6/28 , G02B6/293 , G02B6/34

5. 发明专利

JPS6128912A Photoelectric and electrooptic converting device 失效
标题翻译：光电转换装置
公开(公告)号：JPS6128912A
公开(公告)日：1986-02-08
申请号：JP14946584
申请日：1984-07-20
申请人： Hitachi Ltd
发明人： ONODA SEIICHI , KUSANO MASAAKI , YANO MASAO , TAKEUCHI TAMIO , KOAKUTSU YASUMASA , YAMADA YOSHIHARU , IKUSHIMA ICHIRO , MIYAKE KIYOHIDE , TANAKA KATSUKI
IPC分类号： G02B6/42 , H01L31/02 , H01L31/0232 , H01L31/12 , H01L33/62
摘要： PURPOSE: To obtain an inexpensive, high-reliability optical transmission module which complies with an increase in function by assembling fiber element wires in one body and thus forming part or the whole of a fiber assembly substrate beyond a range in which there is no evil influence upon output light from a light emitting element and input light to a photodetecting element.
CONSTITUTION: An LED20 is connected to the substrate 11 through the part of a wiring conductor 12 and the fiber assembly substrate 11 consists of fiber element wires 13 forming passages for light and a clad part 14 covering them. Then, fibers are a little larger in refractive index than the clad part, the diameter of the fibers is much smaller than the core diameter of transmission line fibers and the light emission and photodetection area of an optical element, and the numerical aperture is equal to or larger than that of the transmission line fibers. Light from the LED has large divergence as shown by 2d in a figure, but the light is entered into the core 16a of a fiber 15 through the core 24 of the fiber assembly substrate. When this fiber assembly substrate 11 is used, this operates as if the light source position viewed from a fiber end surface were closer by the thickness of the substrate.
COPYRIGHT: (C)1986,JPO&Japio
摘要翻译：目的：为了获得廉价，高可靠性的光传输模块，通过将光纤元件线组装在一体内，从而将光纤组件基板的一部分或全部超过无邪影响的范围，从而实现功能的增加在从发光元件输出光并将光输入到光检测元件时。构成：LED20通过布线导体12的一部分连接到基板11，并且光纤组件基板11由形成光通道的光纤元件布线13和覆盖它们的包层部分14组成。然后，纤维的折射率比包层部分大一点，纤维的直径比传输线纤维的芯直径和光学元件的发光和光电检测面积小得多，数值孔径等于或大于传输线光纤。来自LED的光如图中的2d所示具有大的发散度，但是光通过光纤组件基板的芯24进入光纤15的芯16a。当使用该纤维组装基板11时，其操作就好像从光纤端面观察的光源位置靠近基板的厚度。

6. 发明专利

JPS6211400B2 失效
公开(公告)号：JPS6211400B2
公开(公告)日：1987-03-12
申请号：JP9046578
申请日：1978-07-26
申请人： HITACHI LTD
发明人： MINAE YASUO , MAEDA MINORU , KIDA ARATA , TANAKA MITSUO , ONODA SEIICHI , YAMADA YOSHIHARU
IPC分类号： G01B11/00 , G01B9/02 , G01B11/02 , G01D5/26 , G01D5/347 , G08C23/04 , G08C25/00

7. 发明专利

JPS6127513A Optical transmission module 失效
标题翻译：光传输模块
公开(公告)号：JPS6127513A
公开(公告)日：1986-02-07
申请号：JP14751284
申请日：1984-07-18
申请人： Hitachi Ltd
发明人： ONODA SEIICHI , KOAKUTSU YASUMASA , KUSANO MASAAKI , TAKEUCHI TAMIO , YANO MASAO , YAMADA YOSHIHARU , IKUSHIMA ICHIRO , MIYAKE KIYOHIDE , TANAKA KATSUKI
IPC分类号： G02B6/42
摘要： PURPOSE: To improve the optical coupling degree by a simple constitution, by interposing plural optical transmission lines by which an incident angle and an emitting angle become equal, between an optical light emitting element and an optical fiber.
CONSTITUTION: Lights 3, 4 which have been made incident at angle θ
1 , θ
2 on an optical transmission line 2 by being emitted from a point light source 1 having an optical intensity P, which faces the optical transmission line 2 at a distance l
1 are totally reflected by a reflecting plate 9 in the optical transmission line, respectively, and propagated in the thickness direction. The emitted light from the optical transmission line 2 is divided into two lights 5, 5' and 6, 6' whose emitted angle are ±θ
1 and θ
2 . A pair of these two lights have an equal optical intensity, respectively. That is to say, two light sources 7, 8 of an optical intensity P/2 are equivalent to a system positioned at a point of ±l
1 from the emitting surface of the optical transmission line, in a free space. When an optical fiber for the transmission line is opposed to the emitting side of the optical transmission line 2, and a light source output is coupled, a distance between the light source and the fiber is shortened equivalently.
COPYRIGHT: (C)1986,JPO&Japio
摘要翻译：目的：通过简单的结构，通过在光发射元件和光纤之间插入入射角和发射角度相等的多条光传输线来提高光耦合度。构成：通过从距离为l1的光传输线2的具有光强度P的点光源1发射而在光传输线2上以角度θ1，θ2入射的光3,4完全是分别由光传输线中的反射板9反射并沿厚度方向传播。来自光传输线2的发射光被分成发射角为+或-θ1和θ2的两个光5,5'和6,6'。一对这两个光分别具有相等的光强度。也就是说，光强度P / 2的两个光源7,8相当于在自由空间中位于距离光传输线的发射面的+或-1.1点的系统。当用于传输线的光纤与光传输线2的发射侧相对并且光源输出耦合时，等效地缩短光源和光纤之间的距离。

8. 发明专利

JPS61103110A Optical multiplexer and demultiplexer 失效
标题翻译：光学多路复用器和解复用器
公开(公告)号：JPS61103110A
公开(公告)日：1986-05-21
申请号：JP22398484
申请日：1984-10-26
申请人： Hitachi Ltd , Nippon Telegr & Teleph Corp
发明人： IMOTO KATSUYUKI , YAMADA YOSHIHARU , SANO KOICHI , OKADA KENJI
IPC分类号： G02B6/293 , G02B6/28
摘要： PURPOSE:To permit easy optical axis adjustment, assembly and manufacture by forming diagonally both right and left end faces of a glass body and the end faces of rod lenses disposed to face said body at the same desired angle relative to the axial direction of the rod lenses. CONSTITUTION:Both end faces of the glass block 9 are optically polished diagonally at a desired angle theta1 and interference film filters 10a-10e are deposited by evaporation to the desired position thereof. The value of theta1 is selected fro the range of several degrees to 45 degress. The more preferable value is the range from 10-odd degrees - 20-odd degrees. Since no glass spacers are used, the construction is simple and the size is reduced. Both right and left end faces of the block 9 and the end faces of the rod lenses disposed to face said block are diagonally polished at the same angle and the end faces are adhered together after the formation of the interference film filters thereon and therefore the optical axis adjustment and assembly are made easier.
摘要翻译：目的：通过对角地形成玻璃体的右端面和左端面以及杆状透镜的端面相对于杆的轴向以相同的所需角度设置在面对所述主体的方式允许容易地进行光轴调整，组装和制造镜头构成：将玻璃块9的两个端面以所需角度θ1对角地光学抛光，并通过蒸发将干涉膜滤光片10a-10e沉积到其期望的位置。 θ1的值选择在几度到45度之间的范围内。更优选的值是从10度到20度的范围。由于不使用玻璃间隔物，所以结构简单，尺寸减小。块体9的右端面和左端面以及面对所述块的棒状透镜的端面以相同的角度对角抛光，并且在其上形成干涉膜滤光片之后将端面粘合在一起，因此光学轴调整和组装变得更加容易。

9. 发明专利

JPS60205405A OPTICAL MODULE FOR BIDIRECTIONAL TRANSMISSION AND TRANSMISSION SYSTEM 失效
公开(公告)号：JPS60205405A
公开(公告)日：1985-10-17
申请号：JP6186584
申请日：1984-03-29
申请人： HITACHI LTD
发明人： IMOTO KATSUYUKI , TAKASE MASAHIKO , AOKI SATOSHI , YOSHIYA TSUTOMU , YAMADA YOSHIHARU
IPC分类号： H04B10/00 , G02B6/28 , G02B6/293 , G02B6/34
摘要： PURPOSE:To simplify the coupling adjustment of light and to enable bidrectional transmission for a long distance by fixing respectively integrally >=1 optical fibers which transmit the optical signal demultiplexed or multiplexed by interference film filters. CONSTITUTION:A rod lens 22 is provided with >=1 sheets of interference film filters 23, 24 having prescribed optical characteristics on the incident end side thereof and is provided with an optical fiber 7 for transmission on approximately the central axis. An optical fiber holding part 37 fixed and disposed integrally with an optical fiber 33 for demultiplexing which transmits the demultiplexed optical signal and an optical fiber 9' for multiplexing which is introduced with the demultiplexed signals and transmits the same so as to multiplex the signals is provided around said fiber. An optical module for bidirectional transmission is constituted by the above-mentioned parts which are integrally fixed and disposed. Such light modules are provided respectively on the up line and the down line and >=1 optical fibers are coupled to these light modules so that different wavelengths pass or reflect in these modules.

10. 发明专利

JPS5922888B2 失效
公开(公告)号：JPS5922888B2
公开(公告)日：1984-05-29
申请号：JP1539578
申请日：1978-02-15
申请人： HITACHI LTD
发明人： ONODA SEIICHI , YAMADA YOSHIHARU , MINAE YASUO
IPC分类号： G01J1/42 , G01D5/26 , G01F23/292 , G01L9/00 , G02B6/00 , G02B6/02

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