• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:

    公开号:NL1037547A
    申请号:NL1037547
    申请日:2009-12-11
    公开日:2010-06-14
    发明作者:Lin En；Tomoyuki Mamlya；Jeffery Gniadek
    申请人:Protai Photonic Co Ltd；Senko Advanced Components；Tomoyuki Mamlya；Jeffery Gniadek；
    IPC主号:
    专利说明:

    Flexible curved shoe for optical fiber coupling
    The invention relates to an optical fiber coupling, and more particularly to a shoe for an optical fiber coupling.
    The application of fiber optics to telecommunications and to data storage industries is increasing every day. Fiber optics allows the high speed transfer of connections and data. Optical fiber couplings can be found at the rear of instrumentation, telecommunication, routing and switch boxes. These cabinets contain a large number of fiber optic couplings. The optical fibers protrude from the coupling and tend to bend to the ground under the influence of gravity, or the optical fibers are bent in a different direction and as a result of an externally exerted force. An optical signal that passes through an optical fiber can undergo a power loss if the radius of curvature of the optical fiber is too large. To prevent the optical fiber from being bent further than a minimum radius of curvature, strain relief shoes can be attached to the optical fiber in an area adjacent to the coupling. The strain relief shoe provides a gentle, smooth, non-sudden transition of the optical fiber from the coupling to another environment, so that the optical signal is maintained at an acceptable power level.
    Stress relief shoes typically have a straight, non-curved shape when they are not subjected to an externally applied force. Such a strain relief shoe is described in US patent no. 5,781,681. FIG. 1 is taken from U.S. Patent No. 5,781,681 and shows a coupling 100 of the prior art. The state of the art coupling 100 comprises the state of the art optical fiber 110, which, adjacent to the coupling 100, is surrounded by the state of the art stress relief shoe 120. When the prior art optical fiber 110 is subjected to a lateral load, such as gravity, the strain relief shoe 120 will flex. If the lateral load is too large, the shoe 120 will bend strongly, causing a micro bending loss of the fiber 110. Moreover, when a large number of fibers 110 are arranged in the aforementioned boxes, it is usually necessary to bundle this fiber 110 together. This will also cause the shoe 120 to bend.
    To solve the above problem, with reference to Figs. 2, U.S. Patent No. 6,695,486 describes a curved fiber optic coupler 200. However, flexing the coupler 200 is difficult.
    In addition, with reference to FIG. 3, U.S. Patent No. 6,634,801 shows an adjustable strain relief shoe 300 for an optical fiber coupling. The strain relief shoe 300 includes a fixed portion 320 and a moving portion 330 slidably connected to the fixed portion 320. The bending angle of the shoe 300 can be adjusted by the moving portion 330.
    The bending angle of the shoe 300 is adjusted with teeth. The teeth will result in the bending angle not being adjusted randomly. Furthermore, the mechanism of the moving portion 330 is somewhat complicated and the shoe can only be bent in one direction.
    As a result, there is a need to provide a flexible curved shoe for solving the aforementioned issues,
    The present invention provides a flexible curved shoe for an optical fiber coupling.
    In one embodiment, the shoe according to the present invention comprises an elastic hollow body, which is cylindrical and determines an axial direction. A protruding portion is formed in one piece on the outer surface of the body along the axial direction. Moreover, an organ with the property of plasticity is axially embedded in the protruding part. The member can be integrally formed and is a metal wire, such as an iron wire.
    According to the present invention, the shoe can be bent into a desired shape under the influence of an external force. When the shoe is bent, the member will also be bent accordingly. The shoe can still be held in the desired shape even when the external force disappears. The shoe can be bent into its original shape with a suitable force.
    The above, as well as additional objects, features and advantages of the invention, will become more apparent from the detailed description below, which refers to the accompanying drawings.
    FIG. 1 shows a conventional shoe for an optical fiber coupling.
    FIG. 2 shows a conventional curved fiber optic coupling.
    FIG. 3 shows a conventional adjustable shoe for an optical fiber coupling.
    FIG. 4 is an elevated perspective view of the flexible curved shoe for an optical fiber coupling according to the present invention.
    FIG. 5 is a cross-sectional view of the flexible curved shoe for an optical fiber coupling according to the present invention.
    With reference to FIG. 4 and 5, the flexible curved shoe 400 according to the present invention is intended for an optical fiber coupling. The shoe 400 is adjacent to an optical fiber coupling and surrounds an optical fiber (not shown in the drawings). The shoe 400 includes an elastic hollow body 410 that is cylindrical and defines an axial direction 420. A protruding part 430 is integrally formed on the outer surface of the body 14 along the axial direction 420. In addition, a member 440 having the property of plasticity is axially embedded in the protruding part 430. The member 440 can be integrally formed and is a metal wire, such as an iron wire.
    According to the present invention, the shoe 400 can be bent into a desired shape when subjected to an external force. When the shoe 400 is bent, the member 440 will be bent accordingly. Since the member 440 has the property of plasticity, the shoe 400 can still be held in the desired shape even when the external force disappears. Similarly, the shoe 400 can be bent to its original shape with a suitable force. It should be noted that the plasticity property 440 of the present invention is a device that when subjected to an external force can be bent into a desired shape and still be held in the desired shape even when the external power disappears. The member 440 can be bent to its original shape with a suitable force. It will be appreciated that the shoe of the present invention can be used in any type of fiber optic coupling, such as a FC, SC or LC type coupling.
    Although the preferred embodiments of the present invention have been described for illustrative purposes, it will be apparent to those skilled in the art that numerous modifications, additions and substitutions are possible without departing from the scope and spirit of the invention as set forth in the appended claims. brought down.
    权利要求:
    Claims (11)
    [1]
    A fiber optic coupling shoe, comprising: a hollow cylindrical body defining an axial direction; and a plasticity property attached to the cylindrical body.
    [2]
    The shoe of claim 1, further comprising: a protruding member formed on the cylindrical body, the member being embedded in the protruding member.
    [3]
    Shoe as claimed in claim 2, wherein the protruding part is integrally formed with the cylindrical body.
    [4]
    The shoe of claim 1, wherein the member is along the axial direction.
    [5]
    The shoe of claim 2, wherein the member is along the axial direction.
    [6]
    The shoe of claim 1, wherein the member is integrally formed.
    [7]
    The shoe of claim 2, wherein the member is integrally formed.
    [8]
    The shoe of claim 1, wherein the member is a metal wire.
    [9]
    The shoe of claim 5, wherein the member is a metal wire.
    [10]
    The shoe of claim 1, wherein the member is an iron wire.
    [11]
    The shoe of claim 5, wherein the member is an iron wire. .
    类似技术:
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    同族专利:
    公开号 | 公开日
    TW200921172A|2009-05-16|
    NL1037547C2|2015-03-03|
    US20090196555A1|2009-08-06|
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    法律状态:
    2011-06-01| SD| Assignments of patents|Effective date: 20110513 |
    优先权:
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    TW097148176A|TW200921172A|2008-12-11|2008-12-11|Flexibly bended boot for optical fiber connector|
    TW97148176|2008-12-11|
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