JP6205300B2 - Communication light visualization module - Google Patents

Description

  The present invention relates to a communication light visualization module for visualizing communication light and visually confirming the use / non-use state of an optical transmission line.

  In optical communication related equipment, in order to monitor the soundness of the optical transmission line and prevent accidental disconnection of the optical connector for artificial communication, the communication light in the invisible light region is visualized and the optical transmission line is The use / non-use state (hereinafter referred to as communication state) is visually confirmed.

  Specifically, a communication light detector on which a light receiving element and a display unit are mounted is attached to an adapter having a light extraction hole (hereinafter referred to as a communication light visualization adapter), and communication light transmitted through an optical transmission line. A part of the light is extracted from the optical transmission line through the light extraction part formed in the middle of the optical transmission line, and light is received by the light receiving element through the light extraction hole. In addition, the communication state of the optical transmission path is displayed on the display unit in a form that can be visually confirmed by humans, and the operator observes this to communicate the optical transmission path. The state is visually confirmed (see, for example, Patent Document 1 to Patent Document 4).

  At this time, in order to avoid a serious communication failure, it is necessary to detect with high accuracy whether or not communication light is transmitted through the optical transmission line, so only leakage light from the optical transmission line whose communication state is to be confirmed is detected. It is important to secure a sufficient light shielding property for protecting the light receiving element from the influence of other light (hereinafter referred to as irrelevant light) so that the light receiving element can receive light.

JP 2009-145676 A JP 2010-231082 A JP 2011-013359 A JP 2011-013360 A JP 2011-060988 A JP 2011-013497 A

  The communication light visualization adapter is an improvement of a normal adapter, and its shape is almost the same as that of a normal adapter. Therefore, the communication light visualization adapter is mounted on a common optical termination box with a normal adapter. Although it is considered that it is often used as a module (see, for example, Patent Document 5 and Patent Document 6), it is not necessary to consider the influence of irrelevant light in the first place when using a normal adapter. Of course, in the communication light visualization module according to the prior art, sufficient light shielding properties for protecting the light receiving element from the influence of irrelevant light are not ensured.

  Therefore, an object of the present invention is to provide a communication light visualization module capable of ensuring sufficient light shielding properties for protecting a light receiving element from the influence of irrelevant light.

The present invention provides a plurality of communication light visualization adapters having a light extraction hole through which leaked light is extracted and a fitting insertion opening into which a connector is inserted, and a plurality of the communication light visualization adapters direct the light extraction hole upward and A bottom surface that is arranged in parallel so that the insertion slot faces the side of the edge portion is formed in a side-by-side direction, and is formed upright above the edge portion of the bottom surface so as to surround the bottom surface. the fitting spigot has a lower wall surface having the formed connector fitted interpolating opening in a position to be disposed, and a lower housing is opaque to light, the lower housing and a plurality with The top surface covering the light extraction hole side of the communication light visualization adapter and the bottom wall surface other than the position where the fitting insertion port is disposed are directed downward from the edge of the top surface. Before standing at a position other than the position where the insertion slot is arranged Has an upper wall surface in contact with the lower side wall, a closed upper casing is opaque to light, the open position and the light extraction hole which opens the light extraction holes with attached to the top surface A lid member that is movably disposed between the closed position and the lower casing is formed to stand further upward from the lower side wall surface at the position where the fitting insertion port is disposed. providing communication light visualization module further comprises a light shielding surface contacting the edge of said upper wall is not formed ceiling with being.

  The light shielding surface may be formed upright to a height exceeding the top surface.

  The lower housing may further include an optical transmission line separation unit that separates optical transmission lines extending from the plurality of communication light visualization adapters.

  The lower housing may further include a surplus winding portion around which a surplus length portion of the optical transmission path extending from the plurality of communication light visualization adapters is wound with a specified bending radius.

  The lower housing may further include a holding unit that holds an optical transmission line extending from the plurality of communication light visualization adapters.

  It is good to further have a plurality of fastening members which fasten the edge of the top surface in which the upper wall surface is not formed to the lower case.

  The lid member may be transparent to specific light.

  ADVANTAGE OF THE INVENTION According to this invention, the communication light visualization module which can ensure sufficient light-shielding property for protecting a light receiving element from the influence by irrelevant light can be provided.

It is a disassembled perspective view which shows the communication light visualization module which concerns on this invention.

  Preferred embodiments of the present invention will be described below with reference to the accompanying drawings.

  As shown in FIG. 1, a communication light visualization module 100 according to a preferred embodiment of the present invention includes a plurality of communication lights having a light extraction hole 101 through which leaked light is extracted and a fitting insertion hole 102 into which a connector is inserted. An upper housing having a visualization adapter 103, a bottom surface 104, a lower side wall surface 105 and opaque to light, and an upper housing having a top surface 107 and an upper wall surface 108 and opaque to light. A body 109 and a lid member 110 arranged to be movable between an open position where the light extraction hole 101 is opened and a closed position where the light extraction hole 101 is closed are provided.

  The light extraction hole 101 prevents the light receiving element mounted on the communication light detector from receiving irrelevant light and cannot accurately check the communication state of the optical transmission path from the irrelevant light. It has a function of taking out leaked light toward the light receiving element when the communication light detector is attached to the communication light visualization adapter 103.

  Here, the leaked light means light that is extracted from the optical transmission line through a light extraction part formed in the middle of the optical transmission line, through a part of the communication light transmitted through the optical transmission line. ing.

  As the light extraction portion, a conventionally known shaft misalignment portion or the like can be adopted. However, since the description of the light extraction portion departs from the gist of the present invention, detailed description is avoided in this specification.

  The bottom surface 104 is a portion in which a plurality of communication light visualization adapters 103 are arranged in parallel so that the light extraction hole 101 faces upward and the insertion slot 102 faces sideways along one side of the edge.

  The lower wall surface 105 is formed so as to stand up above the edge of the bottom surface 104 so as to surround the bottom surface 104 and has a connector insertion opening 111 formed at a position where the insertion slot 102 is disposed. It is a part that has.

  Here, the bottom surface 104 has a substantially rectangular shape, and the lower side wall surface 105 is formed on the lower side front surface portion 112 formed on the front portion, the lower back surface portion 113 formed on the back portion, and 2 formed on the side portion. A configuration in which the lower insertion portion 102 is disposed in the lower front surface portion 112 and the connector insertion opening 111 is formed in the lower front surface portion 112 will be described.

  The lower housing 106 includes an optical transmission line separation unit 115 that separates optical transmission lines extending from the plurality of communication light visualization adapters 103 from each other, and an optical transmission line extended from the plurality of communication light visualization adapters 103. The extra length winding portion 116 in which the extra length portion is wound with a specified bending radius, and the holding portion 117 that holds the optical transmission path extending from the plurality of communication light visualization adapters 103 are further provided.

  The optical transmission line separation unit 115 has a rod-like shape, and in order to separate the optical transmission lines extending from the plurality of communication light visualization adapters 103 one by one and prevent crosstalk, the communication light visualization adapter 103 It is formed corresponding to the number.

  The extra length winding unit 116 is formed on the opposite side of the communication light visualization adapter 103 with the optical transmission line separation unit 115 interposed therebetween, and a plurality of optical transmission lines are wound together with a predetermined bending radius (for example, 15 mm). It can be turned.

  The holding unit 117 is not limited to the optical transmission path, and is formed in a claw shape so as to hold an optical component or the like disposed in the middle of the optical transmission path.

  The top surface 107 is a portion that covers the lower housing 106. A lid member 110 is attached to the top surface 107, and by pushing a tab 118 formed on the lid member 110, the tip of the lid member 110 that closes the light extraction hole 101 is lifted, and the light extraction hole 101 is opened.

  The upper wall surface 108 is formed so as to stand below the edge of the top surface 107 so as to surround the lower wall surface 105 other than the position where the insertion slot 102 is arranged, and the insertion slot 102 is arranged. It is a part which contacts the lower side wall surface 105 other than the position to be.

  That is, the upper wall surface 108 includes an upper back surface portion 119 that comes into contact with the lower back surface portion 113 with almost no gap, and two upper side surface portions 120 that come into contact with the lower side surface portion 114 with almost no gap.

  As a result, in the communication light visualization module 100, a so-called Kabuse lid structure is formed in which the lower wall surface 105 and the upper wall surface 108 are in contact with each other at the back or side, so that irrelevant light enters from the back or side. Can be prevented.

  As described above, in the communication light visualization module 100, the lower casing 106 and the upper casing 109 are opaque to light (for example, colored black or the like that easily absorbs light for light shielding). Therefore, it is possible to prevent the irrelevant light from entering the inside by bringing the lower casing 106 and the upper casing 109 into contact with each other with almost no gap.

  However, in the communication light visualization module 100, when the connector is inserted into the insertion opening 102 of the communication light visualization adapter 103, that is, during use of the communication light visualization module 100, the lower housing 106 to the upper housing. Since the body 109 may be removed to perform internal maintenance or the like, if the upper wall surface 108 is formed in the front portion of the upper housing 109, mechanical interference between the upper wall surface 108 and the connector or optical transmission path may result. The upper casing 109 cannot be removed from the lower casing 106.

  In consideration of this point, the upper housing 109 does not have a portion corresponding to the lower front surface portion 112 unlike the lower housing 106, and thus sufficiently contacts the lower front surface portion 112 in terms of structure. If there is no part and the communication light visualization module 100 is deformed due to the temperature change of the usage environment and the top surface 107 is lifted, it is from the gap between the top surface 107 and the lower front surface portion 112, that is, from the front to the inside. The problem is that irrelevant light can easily enter.

  In order to solve this problem and prevent irrelevant light from entering the inside from the front, the lower housing 106 stands up further above the lower side wall surface 105 where the insertion slot 102 is disposed. And a light shielding surface 121 that is in contact with the edge of the top surface 107 where the upper wall surface 108 is not formed.

  Since the light shielding surface 121 is formed to stand above the lower front surface portion 112 so as to come into contact with the front portion of the top surface 107, the top surface 107 and the lower front surface portion even if the top surface 107 is lifted. 112 has a function of preventing irrelevant light from entering the inside from the front without causing a gap between the front and the rear.

  The light shielding surface 121 is preferably formed upright to a height exceeding the top surface 107. Thereby, even if the top surface 107 is lifted more greatly, it is possible to prevent irrelevant light from entering the inside from the front.

  Moreover, it is preferable that the communication light visualization module 100 further includes a plurality of fastening members 122 that fasten the edge of the top surface 107 where the upper wall surface 108 is not formed to the lower housing 106. Thereby, it is possible to prevent the top surface 107 from being lifted.

  As described above, the communication light visualization module 100 solves the above-described problem, and it is possible to ensure sufficient light shielding properties for protecting the light receiving element from the influence of irrelevant light.

  The present invention is not limited to the above-described embodiment, and various modifications can be made.

  For example, the lid member 110 may be transparent to specific light. Thereby, when visible light is used as the specific light and transmitted through the optical transmission line, the visible light can be visually confirmed through the lid member 110, and the light can be obtained without using the communication light detector. It is possible to confirm the soundness of the transmission path.

DESCRIPTION OF SYMBOLS 100 Communication light visualization module 101 Light extraction hole 102 Insertion slot 103 Communication light visualization adapter 104 Bottom surface 105 Lower side wall surface 106 Lower side housing 107 Top surface 108 Upper wall surface 109 Upper housing 110 Cover member 111 Connector insertion opening 112 Below Side front surface portion 113 Lower side rear surface portion 114 Lower side surface portion 115 Optical transmission line separation portion 116 Extra length winding portion 117 Holding portion 118 Tab 119 Upper rear surface portion 120 Upper side surface portion 121 Light shielding surface 122 Fastening member

Claims (7)

A plurality of communication light visualization adapters having a light extraction hole through which leaked light is extracted and an insertion opening into which a connector is inserted;
A plurality of the communication light visualization adapters have a bottom surface arranged in parallel so that the light extraction hole faces upward and the fitting insertion port faces a side of the edge sideward, and surrounds the bottom surface And a lower side wall surface having a connector insertion opening formed at a position where the insertion insertion port is disposed and standing up above the edge of the bottom surface A lower housing that is opaque to the
The top surface covering the lower casing and the light extraction hole side of the plurality of communication light visualization adapters, and the top wall so as to surround the lower side wall surface other than the position where the fitting insertion port is disposed. An upper housing that is formed standing up below the edge and has an upper wall surface that is in contact with the lower wall surface other than the position where the fitting slot is disposed, and is opaque to light When,
A lid member that is attached to the top surface and is movably disposed between an open position that opens the light extraction hole and a closed position that closes the light extraction hole;
With
The lower housing is formed to stand further upward from the lower side wall surface at the position where the insertion slot is disposed, and contacts the edge of the top surface where the upper wall surface is not formed. A communication light visualization module, further comprising a light shielding surface.   The communication light visualization module according to claim 1, wherein the light shielding surface is formed upright to a height exceeding the top surface.   The communication light visualization module according to claim 1, further comprising a plurality of fastening members that fasten an edge of the top surface on which the upper wall surface is not formed to the lower housing.   The communication light visualization module according to any one of claims 1 to 3, wherein the lid member is transparent to specific light.   The communication light visualization according to any one of claims 1 to 4, wherein the lower housing further includes an optical transmission line separation unit that separates optical transmission lines extending from the plurality of communication light visualization adapters. module.   The said lower housing | casing further has the surplus length winding part by which the surplus length part of the optical transmission path extended from the said some communication light visualization adapter is wound by the prescribed | regulated bending radius. The communication light visualization module according to Item.   The communication light visualization module according to any one of claims 1 to 6, wherein the lower housing further includes a holding unit that holds an optical transmission line extending from the plurality of communication light visualization adapters.