TW201140018A - Live wire detecting device - Google Patents

Live wire detecting device Download PDF

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Publication number
TW201140018A
TW201140018A TW100100488A TW100100488A TW201140018A TW 201140018 A TW201140018 A TW 201140018A TW 100100488 A TW100100488 A TW 100100488A TW 100100488 A TW100100488 A TW 100100488A TW 201140018 A TW201140018 A TW 201140018A
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TW
Taiwan
Prior art keywords
light
receiving element
optical fiber
generating portion
leak
Prior art date
Application number
TW100100488A
Other languages
Chinese (zh)
Inventor
Naoya Matuo
Tutomu Simomura
Kenichi Shimaya
Hidetoshi Amaya
Original Assignee
Panasonic Elec Works Co Ltd
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Publication date
Application filed by Panasonic Elec Works Co Ltd filed Critical Panasonic Elec Works Co Ltd
Publication of TW201140018A publication Critical patent/TW201140018A/en

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    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24Coupling light guides
    • G02B6/26Optical coupling means
    • G02B6/28Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
    • G02B6/2804Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals forming multipart couplers without wavelength selective elements, e.g. "T" couplers, star couplers
    • G02B6/2852Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals forming multipart couplers without wavelength selective elements, e.g. "T" couplers, star couplers using tapping light guides arranged sidewardly, e.g. in a non-parallel relationship with respect to the bus light guides (light extraction or launching through cladding, with or without surface discontinuities, bent structures)
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M11/00Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
    • G01M11/30Testing of optical devices, constituted by fibre optics or optical waveguides
    • G01M11/35Testing of optical devices, constituted by fibre optics or optical waveguides in which light is transversely coupled into or out of the fibre or waveguide, e.g. using integrating spheres
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24Coupling light guides
    • G02B6/255Splicing of light guides, e.g. by fusion or bonding
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24Coupling light guides
    • G02B6/42Coupling light guides with opto-electronic elements
    • G02B6/4201Packages, e.g. shape, construction, internal or external details
    • G02B6/4202Packages, e.g. shape, construction, internal or external details for coupling an active element with fibres without intermediate optical elements, e.g. fibres with plane ends, fibres with shaped ends, bundles

Abstract

An active-line detection device is used for detecting whether an optical path formed by connecting mutually one end of two optical fibers exists in an active state. Said device includes a leak-light generation portion, installed in a connection portion of two optical fibers and making a part of light, which transmits in a core of one optical fiber, leak to the clad of the other optical fiber; a light-accepting element, for detecting the light that is incident from a light-accepting surface and leaks at the leak-light generation portion; and a light transmitting layer, composed of a material, which is transparent for the light leaking at the leak-light generation portion, and located between the light-accepting element and the other optical fiber. In the light transmitting layer, a light-guiding path, for guiding the light, leaking at the leak-light generation portion, to the light-accepting element, is formed between the outer peripheral surface of the other optical fiber and the light-accepting surface of the light-accepting element.

Description

201140018 六、發明說明: 【發明所屬之技術領域】 本發明是有關於一種活線檢測裝置,該活線檢測裝置 檢測將兩根光纖的一端彼此予以連接而形成的光線路徑是 否處於活線狀態。 【先前技術】 先前,作為檢測藉由用於光通信等的光纖而形成的光 線路徑是否處於活餘態(光正f地傳輸的狀㈤的活線 檢測裝置’已提itj有無需使域彎曲的活綠測裝置(例 如參照專利文獻1)。 於專利文獻1中揭示有如下的活線檢測裝置,該活〗 檢測裝m _加縣筒(sleeve),翁兩根光纖 以連接而形成的光線路徑中的兩根光纖的—端彼此的取 部加以保護;以及受光元件,設置贿接加強套筒外且4 自熔接部_熔接加強套筒㈣關光進行檢測。對於: 活,檢測裝置而言,若於受光元件中經光電轉換的信號; 預先設定的基準值以上,關定為處於活魏態(光正: 地傳輸)’ :¾上述信號為基準值以下,則 狀態(,光未正常地傳輸>該活、線檢測裝置的特徵在於: 不使光纖彎曲而檢測光線路徑是否處於活線狀態,因1 不2如下的即’因使光纖彎曲而使光纖折損,^ 因日、的傳輸抽失的增加而發生傳輸錯誤(咖r 。 [專利文獻1]日本專利特開綱7 8593 0089-0096 段、圖 4 ) A m ^BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a live line detecting device that detects whether a light path formed by connecting one end of two optical fibers to each other is in a live state. [Prior Art] Previously, as a live line detecting device that detects whether a light path formed by an optical fiber for optical communication or the like is in a living state (a state in which light is transmitted (five), it has been proposed that there is no need to bend the field. The living green measuring device (for example, refer to Patent Document 1). Patent Document 1 discloses a living line detecting device that detects a light _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ The two ends of the two optical fibers in the path are protected from each other; and the light-receiving element is disposed outside the bridging reinforcing sleeve and the fourth self-welding portion_welding reinforcing sleeve (4) is turned off for detection. For: live, detecting device In other words, if the signal is photoelectrically converted in the light-receiving element; if it is above the preset reference value, it is set to be in the active Wei state (light positive: ground transmission)': 3⁄4 The above signal is below the reference value, then the state (the light is not normal) Ground transmission > The live line detecting device is characterized in that it is detected whether or not the light path is in a live state without bending the optical fiber, and the optical fiber is broken due to the bending of the optical fiber as follows: pass Pumping loss increases transmission error occurs (coffee r. [Patent Document 1] Japanese Patent Laid-Open Class 785930089-0096 section, FIG. 4) A m ^

S 201140018 但是,於將兩根光纖的一端彼此予以熔接的情形時, 通常,以使兩根光纖之間的光軸的軸錯位、角度偏差等所 ^丨起的連接損失最小的方式進行熔接,因此,上述的熔接 部的連接損失於波長為1310 nm時為0.2 dB左右。 ,然而,於光通信等中,當在光纖中傳播的光的強度(以 下稱為「光強度」)的範圍廣且光強度小時,上述連接損失 有日夺亦為-20 dBm左右,於該情形時,自熔接部洩漏的光 的光強度非常小。又,由於設置於熔接加強套筒外的受光 ,件遠離熔接部,因此,受光元件中的受光效率低,到達 受光元件的受光面的光量亦少,故而S/N比變小,從而有 時難以對活線狀態進行檢測。 【發明内容】 本發明是鑒於上述緣由而成的發明,目的在於提供如 下的活線檢測裝置,該活線檢測裝置即便在光纖中傳播的 光的光強度小時,亦可穩定地對活線狀態進行檢測。 根據本發明的第1實施形態,提供一種活線檢測褒 ,,檢測將兩根光纖的一端彼此予以連接而形成的光線^ 徑是否處於活線狀態,該活線檢測裝置包括:洩漏光產生 部,設置於兩根光纖彼此的連接部且使於其中一根光纖 纖芯(CO咖傳播的糾-部分㈣至另—根^的包霜 層(clad);受光元件’對自受光面人射的於&漏光產 處洩漏的光進行檢測;以及光透射層,包含對於洩漏 生部處洩漏的光為透明的材料且介於受光元件與上述 根光纖之間,光透射層於上述另—根光_外^面與受: 201140018 兀件的受絲⑽,形朗簡$漏光產生部錢漏的光 引導至党光元件的導光路徑,受光元件以使受光面朝向洩 漏光產生部侧的方式,以相對於上述另一根光纖的外周面 而傾斜地配置。 根據上述構成,光透射層於光纖的外周面與受光元件 的,,面之間,形成用以將茂漏光產生部處浪漏的光引導 至文光7G件的導光路徑,因此,可效率良好地將茂漏光產 生部處洩漏的光經由導光路徑而引導至受光元件。又,設 置有浪漏光產生部,_漏光產生部設置於兩根光纖減 的連接部錢於其中—根光纖的纖芯(晴)内傳播的光 的一部分洩漏至另一根光纖的包覆層,藉此,與以使連接 損失最小的方式來將光_—端彼辭以熔 較1漏的光的光強度變大,從而由受光元件接受^光強 度變大。絲,可確賴料光元件為穩定㈣漏光,即 使當於光纖t傳制光的錢度何,亦可敎地對活線 檢測。而且’藉由使受光元件的受光面朝向茂漏 先產生°卩’ X光70件的受光面積實質上變大,從而可更穩 定地藉由受光元件來對在舰光產生部料㈣光^ 測。 於上述光纖的外周面與上述受光元件的上述受光面之 介設有對於上述鴻漏光產生部錢漏的光為透明的 (prism) ’上述光透射層可分別介於稜鏡的-個面與 光纖之間以及稜鏡的另一個面與受光元件之間。 根據上述構成,可根據稜鏡的形狀來對i光元件的受S 201140018 However, when one end of the two optical fibers is welded to each other, it is generally welded so that the connection loss caused by the axial misalignment and the angular deviation of the optical axes between the two optical fibers is minimized. Therefore, the connection loss of the above-mentioned welded portion is about 0.2 dB at a wavelength of 1310 nm. However, in the optical communication or the like, when the intensity of light propagating in the optical fiber (hereinafter referred to as "light intensity") is wide and the light intensity is small, the connection loss is also about -20 dBm. In the case, the light intensity of the light leaked from the fusion joint is very small. Further, since the light is received outside the fusion-welded sleeve and the member is away from the welded portion, the light-receiving efficiency in the light-receiving element is low, and the amount of light reaching the light-receiving surface of the light-receiving element is small, so that the S/N ratio is small. It is difficult to detect the status of the live line. SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and an object of the invention is to provide a live line detecting device capable of stably operating a live line even when light intensity of light propagating in an optical fiber is small. Test. According to the first embodiment of the present invention, there is provided a live line detecting unit that detects whether or not a light path formed by connecting one end of two optical fibers to each other is in a live state, and the line detecting device includes: a leak light generating unit Provided in the connection portion of the two optical fibers to each other and to the core of one of the optical fibers (the correction-part (4) of the CO coffee propagation to the cladding of the other); the light-receiving element is directed to the self-receiving surface And detecting light leaking at the light leakage; and the light transmitting layer includes a material transparent to the light leaking at the leakage portion and between the light receiving element and the root fiber, and the light transmitting layer is in the above-mentioned Root light _ outer surface and receiving: 201140018 受 的 ( ( 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 2011 According to the above configuration, the light transmitting layer is formed between the outer peripheral surface of the optical fiber and the surface of the light receiving element to form the light leakage generating portion. Leaky Since the light is guided to the light guiding path of the 7G piece of light, the light leaking from the light leakage generating portion can be efficiently guided to the light receiving element via the light guiding path. Further, the light leakage light generating portion is provided, and the light leakage generating portion is provided. The part of the fiber minus the connection between the two fibers is leaked to the cladding of the other fiber, thereby preventing the connection loss from being minimized. The light intensity of the light that melts more than 1 leaks becomes larger, so that the light intensity is increased by the light receiving element. The wire can be sure that the light element is stable (four) light leakage, even when it is transmitted through the optical fiber t The light can be detected by the light, and the light-receiving area of the X-ray 70 is substantially increased by making the light-receiving surface of the light-receiving element face toward the leak. The light-receiving element is used to measure light in the ship light-generating component (4). The outer peripheral surface of the optical fiber and the light-receiving surface of the light-receiving element are transparent to the light leaking from the light leakage generating unit (prism) ) 'The above light transmission layer can be separately Prism in the - between the fiber and the other faces the light receiving surface Prism element according to the above-described configuration, according to the shape of Prism light receiving element of the i

6 S 201140018 進行設定’從而可精度良好地碟定受光元 置,产、^發㈣第2實麵態’提供—種活線檢測裝 徑是=^根光_—端彼辭以連接而形成的光線路 部,讯^舌線狀態’該活線檢測褒置包括:麟光產生 根光纖彼此料接部且使於其巾一根光纖的 傳播的光的-部分、$漏至另—根光纖的包覆層;受 —^ ’對自受光面人_於$漏光產生部處麟的光進 光透射層,包含料朗歧生部處韻的光為 、料且介於受光元件與上述另一根光纖之間;以及 / f對於洩漏光產生部處洩漏的光為透明,且將兩根 光纖彼此的連接部以覆蓋,藉此來保護上述連接部,光 透射層於再塗層料側,在上述另—根光賴外周面與受 光元件的受光©之間’形成用以將賴光產生部處茂漏的 光引導至受光元件的導光路徑。 根據上述構成,光透射層於光纖的外周面與受光元件 的文光面之間,形成用以將洩漏光產生部處洩漏的光引導 至文光元件的導光路徑,因此,可效率良好地將洩漏光產 生。卩處>戈漏的光經由導光路徑而引導至受光元件。又,設 置有洩漏光產生部,該洩漏光產生部設置於兩根光纖彼此 的連接部且使於其中一根光纖的纖芯内傳播的光的一部分 洩漏至另一根光纖的包覆層,藉此,與以使連接損失最小 的方式來將光纖的一端彼此予以熔接的情形相比較,洩漏 的光的光強度變大,從而由受光元件接受的光強度變大。 201140018 '、、D果~7蜂保對於爻光元件為穩定的洩漏光,即使當於光 纖中傳播的光的光強心、時,亦可敎崎活線狀態進行 檢測。而且’由於利用再塗層來將兩根光纖彼此的連接部 予以覆蓋,gj此,可使光纖的連接部_強度提高。 根據本發明的第3實施形態,提供一種活線檢測裝 /置:檢測將兩根光賴—端彼此予以連接而形成的光線路 ,是,處於活線狀態,該活線檢測裝置包括:洩漏光產生 部,設置於兩根光纖彼此的連接部且使於其中一根光纖的 纖芯内傳播的光的-部分、茂漏至另—根光纖的包覆層;受 光疋件’對自受光面人射的㈣漏光產生部處韻的光進 行檢測;光透㈣,包含對於戌漏光產生部錢漏的光為 透,的,料且介於受光元件與上述另一根光纖之間;以及 保護套筒,供兩根光纖彼此的連接部插通,藉此來保護上 述連f部,光透射層於上述另一根光纖的外周面與受光元 件的,光面之間,形錢以將賴光產生部錢漏的光引 導至文光7G件的導光路徑,且受光元件收容於保護套筒的 内側。 根據上述構成,光透射層於光纖的外周面與受光元件 的爻光面之間,形成用以將洩漏光產生部處洩漏的光引導 至受光元件的導光路徑,因此,可效率良好地將洩漏光產 生部處洩漏的光經由導光路徑而引導至受光元件。又,設 置有洩漏光產生部,該洩漏光產生部設置於兩根光纖彼此 的連接部且使於其中一根光纖的纖芯内傳播的光的一部分 洩漏至另一根光纖的包覆層,藉此,與以使連接損失最小6 S 201140018 The setting is made, so that the disc can be accurately positioned by the optical unit, and the second and the second side of the production (4) are provided. The type of live line detection is =^根光__End The optical line portion, the signal line state, the live line detecting device includes: a light-emitting portion of the optical fiber that is connected to each other and causes a light-to-part of the fiber to be spread by the towel, and leaks to another root a coating layer of an optical fiber; a light-transmitting light-transmissive layer of the light-emitting surface of the light-receiving portion of the light-receiving portion, containing the light of the material of the smear portion, and the light-receiving element and the other Between one of the optical fibers; and /f are transparent to the light leaking at the leaking light generating portion, and the connecting portions of the two optical fibers are covered, thereby protecting the connecting portion, and the light transmitting layer is on the side of the recoating material A light guiding path for guiding light leaking at the light generating portion to the light receiving element is formed between the outer peripheral surface of the light source and the light receiving light of the light receiving element. According to the above configuration, the light transmitting layer forms a light guiding path for guiding the light leaking from the leak light generating portion to the light-emitting element between the outer peripheral surface of the optical fiber and the surface of the light-receiving element, so that the light-transmitting layer can be efficiently and efficiently Leakage of light is generated. The light of the drain is guided to the light receiving element via the light guiding path. Further, a leak light generating unit is provided which is provided at a connection portion between the two optical fibers and leaks a part of the light propagating in the core of one of the optical fibers to the cladding layer of the other optical fiber. Thereby, compared with the case where the one ends of the optical fibers are welded to each other so that the connection loss is minimized, the light intensity of the leaked light becomes large, and the light intensity received by the light receiving element becomes large. 201140018 ', D fruit ~ 7 beekeeping is a stable leakage light for the calender element, even when the light intensity of the light propagating in the fiber, can also be detected in the live state of the Nagasaki. Further, since the connection portion between the two optical fibers is covered by the recoating, the strength of the connection portion of the optical fiber can be improved. According to a third embodiment of the present invention, there is provided a live line detecting device that detects an optical line formed by connecting two light-emitting ends to each other, and is in a live line state, and the line detecting device includes: a leak The light generating portion is provided at a connection portion between the two optical fibers and a portion of the light propagating in the core of one of the optical fibers, and a coating layer leaking to the other optical fiber; the light receiving member is self-receiving The light emitted by the (4) light leakage generating portion is detected by the surface person; the light transmission (4) includes the light leaking through the light leakage generating portion, and is between the light receiving element and the other optical fiber; a protective sleeve for inserting a connection portion between the two optical fibers, thereby protecting the connecting portion f, and the light transmitting layer is formed between the outer peripheral surface of the other optical fiber and the light surface of the light receiving element The light leaking from the light-receiving portion is guided to the light guiding path of the document 7G, and the light-receiving element is housed inside the protective sleeve. According to the above configuration, the light transmitting layer forms a light guiding path for guiding the light leaking from the leak light generating portion to the light receiving element between the outer peripheral surface of the optical fiber and the light emitting surface of the light receiving element, so that the light transmitting layer can be efficiently performed. The light leaking at the leak light generating portion is guided to the light receiving element via the light guiding path. Further, a leak light generating unit is provided which is provided at a connection portion between the two optical fibers and leaks a part of the light propagating in the core of one of the optical fibers to the cladding layer of the other optical fiber. Thereby, to minimize the connection loss

8 S 201140018 的方式來將光彼辭赠接晴形桃較,攻漏 的光的光驗敎,從而由受光元件接受的光強度變大。 結果’可確保對較光元件為敎的;m即使當於光 纖中傳播的光的光強度小時,亦可穩定地對活線狀態進行 檢測。而且,由關祕護套絲倾雜錢彼此的連 接部,因此,可使光纖的連接部的強度提高。此外,由於 保護套筒對於每個受光元件而言覆蓋著光纖,因此,於茂 漏光產生部處洩漏的光易於到達受光元件而不會洩漏至外 部。 根據本發明的第4實施形態,提供一種活線檢測裝 置,檢測將兩根光纖的一端彼此予以連接而形成的光線路 徑是否處於活線狀態,該活線檢測裝置包括:洩漏光產生 邠,k置於兩根光纖彼此的連接部且使於其中一根光纖的 纖芯内傳播的光的一部分洩漏至另一根光纖的包覆層;受 光几件,對自受光面入射的於洩漏光產生部處洩漏的光進 行檢測;以及光透射層,包含對於洩漏光產生部處洩漏的 光為透明的材料且介於受光元件與上述另一根光纖之間, 光透射層於上述另一根光纖的外周面與受光元件的受光面 之間,形成用以將洩漏光產生部處洩漏的光引導至受光元 件的導光路徑,於上述另一根光纖的外周面上的洩漏光產 生部與光透射層之間設置有透鏡(lens)構造,該透鏡構 造是使對於洩漏光產生部處洩漏的光為透明的附著劑附著 於上述洩漏光產生部與光透射層之間而形成,且該透鏡構 造使上述光朝光透射層折射。 201140018 根據上述構成,光透射層於光纖的外周面與受光元件 的受光面之間,形成用以將鴻漏光產生部處浅漏的光引導 至受光元件的導光路徑,因此,可效率良好地將浅漏光產 生部處洩漏的光經由導光路徑而引導至受光元件。又,設 置有茂漏絲生部,該細光產生部設置於兩根光纖彼此 的連接部且使於其中—根光纖的纖芯内傳播的光的一部分 4漏至另根光纖的包覆層,藉此’與以使連接損失最小 的方式來將光端彼辭以熔接的情形相比較,沒漏 的光的光強度變大’從而由受光元件接受的光強度變大。 結果’可蜂騎於受光元件為穩定_漏光,即使當於光 纖中傳播狀的絲度辦,亦可穩定地料絲態進行 檢測。而且’當於鴻漏光產生部錢漏的光自光纖的外周 面上的光透射層以外的部位茂漏時,可利用透鏡構造使該 -部分朝光透射層折射,從而可效率更良好地 將洩漏光產生部處洩漏的光引導至受光元件。 ^述光透射層可自上述光纖的外周面與上述受光元件 的^輕絲之間,沿著光_和面朝上述賴 部侧延伸而設置。 $ ,據上述構成’由於用以將茂漏光產生部處浪漏的光 引導至文光讀的導光路捏擴大,因此,可效率更良好地 將沒漏光產生部處⑽的光”至受光元件。 弁面月中i、光透射層於光纖的外周面與受光元件的受 曰喊用以將我漏光產生部處浪漏的光引導至 光兀件的導光路徑,因此,存在如下的優點,,可效率 201140018 良好地將洩漏光產生部處洩漏的光經由導光路徑而引導至 受光元件,結果,即使當於光纖中傳播的光的光強度小時’ 亦可穩定地對活線狀態進行檢測。 為讓本發明之上述和其他目的、特徵和優點能更明顯 易懂,下文特舉較佳實施例,並配合所附圖式,作詳細說 明如下。 【實施方式】 、本發明的目的以及特徵根據與如下所述的隨附圖式一 併給出的以後的較佳實例的說明而變得明確。 以下,參照構成本說明書的一部分的隨附圖式來更詳 細地對本發明的實施形態進行說明。於整個圖式中,對相 同或類似的部分標記相同的符號並省略與該部分相關的重 複的說明。 (實施形態1) ^ t圖1所示,本實施形態的活線檢測裝置檢測光線路 钇A疋否處於活線狀態,該光線路徑A是以對接的形式來 將兩根光纖FI、F2的一端彼此予以連接而形成。 弁输Ϊ舌線檢測装置包括:泡漏光產生部1,設置於兩根 、' 、F2的上述一端彼此的連接部且使於Α中一奸# 義糾-部分舰至另—根光^ 、、爲2’以及受光元件2,對自受光面2a入射的於茂 1、、生部1處浅漏的光進行檢測。此處,受光元件2、拉 4=著:I光透射層)3而附著於上述另-根光纖^ 外周面’该透明附著層(光透射層)3包含對於茂漏光 11 201140018 產生部1處洩漏的光為透明的附著劑β 圖1的例子中’於光纖F1、F2的上述一端彼此的連 接部處,在與兩根光纖F卜F2的光軸方向正交的剖面内, 以使兩根光纖F1、F 2的光軸中心(纖芯i i的中心轴)彼 此錯開的狀態來將-端彼齡赠接,藉此來構成茂漏光 產生邻1。該構成的洩漏光產生部1因兩根光纖FI、的 連接部的不對準而使光產錢漏,使—部分的総漏至光 纖F2的包覆層12。因此’可藉由對兩根光纖^旧之間 的錯位量進行調整來管理洩漏的光量。再者,圖1中的箭 頭表示光的傳播方向。 於本實施形態中,使用光二極體晶片(ph〇t〇di〇de chip)作為受*元件2,#由使用有運算放(啊 amplifier)的電流·電壓轉換電路(未圖示)來將受光元件 ^的輸出電流轉換為電壓信號。於電流_電壓轉換電路的後 段設置有微電腦(microcomputer)、或包含使用有比較器 (comparator)等的電路的判定單元(判定單元),基於自 電:-電壓轉換電路輸出的電壓信號’利用該判定單元來判 f光線路徑A是否處於活線狀態。亦即,對於判定單元而 言,若受光元件2的受光強度為預先設定的基準值以上, 則判定為處於活線狀態(光正常地傳輸),若上述受光強度 不足基準值L則判定為不處於活線狀態(光未正常地傳 輸)。該判定單元的欺結果例如顯示於顯示器(di sp 1 ay ), 或顯示於發光二極體等的顯示單元,藉此,該判 報告。 …The way of 8 S 201140018 is to give the light of the light to the clear peach, and the light of the leaked light is checked, so that the light intensity received by the light receiving element becomes large. As a result, it is ensured that the light-receiving element is defective; m even when the light intensity of light propagating in the optical fiber is small, the state of the live line can be stably detected. Further, since the locking sheath wires are filled with the joint portions of the money, the strength of the connecting portion of the optical fiber can be improved. Further, since the protective sleeve covers the optical fiber for each of the light receiving elements, the light leaking at the light leakage generating portion easily reaches the light receiving element without leaking to the outside. According to a fourth embodiment of the present invention, there is provided a live line detecting device that detects whether a ray path formed by connecting one end of two optical fibers to each other is in a live state, and the line detecting device includes: leakage light generation 邠, k a portion of the two optical fibers connected to each other and leaking a portion of the light propagating in the core of one of the optical fibers to the cladding of the other optical fiber; and receiving a plurality of pieces, generating leakage light from the light receiving surface The light leaking at the portion is detected; and the light transmitting layer includes a material transparent to the light leaking at the leak light generating portion and between the light receiving element and the other optical fiber, and the light transmitting layer is on the other optical fiber A light guiding path for guiding light leaking from the leak light generating portion to the light receiving element is formed between the outer peripheral surface and the light receiving surface of the light receiving element, and the leak light generating portion and the light on the outer peripheral surface of the other optical fiber are formed. A lens structure is provided between the transmission layers, and the lens structure is such that an adhesive agent that is transparent to light leaking from the leak light generating portion is attached to the leak light generating portion. Is formed between the light transmission layer, and the lens configuration made so that the light refracted toward the light transmitting layer. According to the configuration described above, the light transmitting layer is formed between the outer peripheral surface of the optical fiber and the light receiving surface of the light receiving element to guide the light leaking light to the light receiving element. The light leaking at the shallow light leakage generating portion is guided to the light receiving element via the light guiding path. Further, a microfluidic portion is provided which is provided at a connection portion between the two optical fibers and causes a portion 4 of the light propagating in the core of the optical fiber to leak to the cladding of the other optical fiber In contrast, the light intensity of the light that does not leak is increased as compared with the case where the optical end is welded in such a manner as to minimize the connection loss, and the light intensity received by the light receiving element is increased. As a result, the bee can be stabilized by the light-receiving element, and the light can be detected stably even when the filament is propagated in the fiber. Further, when the light leaking from the light leakage generating portion leaks from a portion other than the light transmitting layer on the outer peripheral surface of the optical fiber, the portion can be refracted toward the light transmitting layer by the lens structure, so that the efficiency can be more efficiently performed. Light leaking at the leak light generating portion is guided to the light receiving element. The light transmitting layer may be provided between the outer peripheral surface of the optical fiber and the light-emitting wire of the light-receiving element so as to extend along the light- and surface toward the side of the upper portion. According to the above configuration, the light guide path for guiding the light leaking from the light leakage generating portion to the light reading is expanded, so that the light of the light leakage generating portion (10) can be more efficiently transmitted to the light receiving element. In the face of the moon, the light transmitting layer is guided by the outer peripheral surface of the optical fiber and the light-receiving element to guide the light leaking from the light leakage generating portion to the light guiding path of the optical element. Therefore, there are the following advantages. , the efficiency 201140018 is good to guide the light leaking from the leak light generating portion to the light receiving element via the light guiding path, and as a result, even when the light intensity of the light propagating in the optical fiber is small, the live state can be stably detected. The above and other objects, features, and advantages of the present invention will become more apparent from the aspects of the preferred embodiments of the invention. The features will become apparent from the following description of the preferred examples given with the accompanying drawings, which are set forth below. The same or similar components are denoted by the same reference numerals throughout the drawings, and the description thereof will be omitted. (Embodiment 1) ^ t FIG. 1 shows the present embodiment. The live line detecting device detects whether the optical line 钇A is in a live state, and the ray path A is formed by connecting one ends of the two optical fibers FI and F2 to each other in a butt joint form. The bubble light generating unit 1 is provided at a connection portion between the two ends of the two, ', and F2, and is made in the middle of the # 一 # 义 义 义 义 义 义 义 义 义 义 义 义 义 义 义 义 义 义 义 义 义 义 义 义 义 义 义 义 义 义 义 义 义 义 义The light leaking from the light-emitting surface 2a and the light leaking from the raw portion 1 is detected. Here, the light-receiving element 2, the pull-up 4: the I light-transmitting layer 3, is attached to the other-fiber. ^ The outer peripheral surface 'the transparent adhesion layer (light transmitting layer) 3 contains an adhesive agent which is transparent to the light leaking at the generating portion 1 of the light leaking light 11 201140018. In the example of Fig. 1 'the connection of the above-mentioned one ends of the optical fibers F1, F2 At the department, orthogonal to the optical axis direction of the two fibers Fb F2 In the cross section, the center of the optical axes of the two optical fibers F1 and F2 (the central axis of the core ii) are shifted from each other, and the end-to-end is connected to each other, thereby forming the leaky light generating the neighbor 1. The leak light generating unit 1 causes the light to leak due to the misalignment of the connecting portions of the two optical fibers FI, and causes the leakage of the portion to the cladding layer 12 of the optical fiber F2. Therefore, the two optical fibers can be used. The amount of misalignment between the old ones is adjusted to manage the amount of light leaked. Further, the arrows in Fig. 1 indicate the direction of light propagation. In the present embodiment, a photodiode chip is used as a photodiode chip. The * component 2, # is converted into a voltage signal by a current-voltage conversion circuit (not shown) using an arithmetic amplifier (not shown). In the latter stage of the current-voltage conversion circuit, a microcomputer (microcomputer) or a determination unit (determination unit) including a circuit using a comparator or the like is provided, and the voltage signal based on the self-electricity:-voltage conversion circuit is utilized. The determining unit determines whether the f-ray path A is in a live state. In other words, when the light receiving intensity of the light receiving element 2 is equal to or greater than a predetermined reference value, it is determined that the light receiving element 2 is in a live state (light is normally transmitted), and if the light receiving intensity is less than the reference value L, it is determined not to be It is in a live state (light is not transmitted normally). The result of the deception of the determination unit is displayed, for example, on a display (di sp 1 ay ), or on a display unit such as a light-emitting diode, whereby the report is reported. ...

12 S 201140018 自各光纖FI、F2的上述一端側起,將規定長度的覆 蓋層予以除去’使素線的外周面(亦即,包覆層12的外周 面)露出。受光元件2是以使受光面2a處於光纖F2的包 覆層12側的形式,隔著透明附著層3而附著於光纖F2的 包覆層12的外周面。又,受光元件2是配置為於上述另一 根光纖F2的光軸方向上,與洩漏光產生部(亦即,兩根 光纖F1、F2的連接部)丨相距規定長度(例如 2 mm 〜5 mm 左右)。 將各種光纖FI、F2中的傳播損失、傳輸頻寬以及機 械強度等的耐環境性等優異的石英玻璃光纖(glass fiber ) 用作各光纖FI、F2。此處,用作本實施形態的光纖F1、 F2的石英玻璃光纖採用單模(singlem〇de)型(SM型) 光纖,但不限於該單模型光纖,亦可採用階變折射率(以叩 index)型(SI型)多模光纖(multimode fiber)或梯度折 射率(graded index)型(GI型)多模光纖等各種光纖。 再者,各光纖FI、F2並不限於石英玻璃光纖,亦可使用 $成分玻璃光纖或塑膠光纖(plastic fiber)等。當將兩根 光纖F卜F2的上述一端彼此予以熔接時,使兩根光纖F卜 F2的上述一端侧的端面對接,利用電弧放電(肌 discharge)冑來加$炫融之後進行冷卻,藉此來將兩根光 纖FI、F2予以連接。 、、將於光纖1中傳播的光假定為例如波長為131〇瓜^的 光或波長為850 nm的光,藉由對於上述波長的光而言透 明的附著劑即環氧(epGXy)系樹脂或丙烯酸⑹系 13 201140018 樹脂等來形成透明附著層3即可。再者,不一定必須利用 折射率比包覆層12更高的材料來形成透明附著層3,亦可 利用具有空氣與包覆層12的中間折射率的材料來形成上 述透明附著層3。 此處,對於受光元件2而言,當於光纖F1、F2中傳 播的光(亦即,光通信用的光)的波長處於丨μιη頻帶波 長區域(例如1310nm)時,採用於該! μηι頻帶波長區域 中党光感度尚的InGaAs光二極體晶片,當光的波長處於 〇.8 μιη頻帶波長區域(例如85〇 nm)時,採用該〇8 =帶波長區域中受光感度高的Si光二極體晶片即可。例如 當1 μπι頻帶波長區域的光以&〇 8μηι頻帶波長區域的光 於光線路役Α内傳播時,分別在各波長區域中設置受光感 度高的受光元件2即可》 然而,於本實施形態的活線檢測裝置中,透明附著層 3將導光路徑形成於上述另一根光纖F2的外周面與受光元 件2的文光面2a之間,該導光路徑用以將洩漏光產生部i ,洩漏的光引導至受光元件2。亦即,如上所述,透明附 著層3包含對於洩漏光產生部1處洩漏的光為透明的附著 劑該透明附著層3不僅將受光元件2附著於光纖F2,而 且亦具有作為將洩漏光產生部1處洩漏的光引導至受光元 件2的導光路徑的功能。此處,透明附著層3黏接於受光 凡件2的整個受光面2a,受光元件2自受光面&的整個 面接受經由導光路徑的光。 總之,於洩漏光產生部1處產生的洩漏光中,即便於 201140018 包覆層12與空氣的邊界處,一種入射補角仍大於全反射臨 界補角的光線亦會自包覆層12洩漏且射出至外部,但入射 補角小於全反射臨界補角的光線於包覆層12與空氣的邊 界處發生全反射。此處,如本實施形態般,於將石英玻璃 光纖用作兩根光纖FI、F2的情形時,由於包覆層12與空 氣的折射率差較大,因此,對於洩漏光產生部1處產生的 洩漏光而言’於包覆層12與空氣的邊界處發生全反射的比 例向’於洩漏光產生部1處產生的大部分的洩漏光會在包 覆層12内傳播。另一方面,由於包覆層與透明附著層 3的折射率差小於包覆層12與空氣的折射率差,因此,對 於洩漏光產生部1處產生的洩漏光而言,於包覆層12與透 明附著層3的界面發生全反射的光的比例少,該洩漏光會 [由包覆層12與透明附著層3的界面而到達受光元件2 的受光面2a。 根據以上所說明的構成,於洩漏光產生部丨處洩漏的 光的一部分自光纖F2的包覆層12的外周面,經由包含透 明附著層3的導光路徑而到達受光元件2的受光面2a,與 於空亂中傳播的情形相比較,上述光被有效率地引導至受 光元件2。亦即,與空氣層介於光纖F2的外周面與受光元 件2的受光面2a之間的情形相比較,可藉由透明附著層3 來將 漏光產生部1處泡漏的光高效率地引導至受光元件 2,從而可確保對於受光元件2而言穩定的洩漏光。而且, 藉由將洩漏光產生部1設置於兩根光纖FI、F2彼此的連 接部,與以使連接損失最小的方式來將光纖Fi、F2的一 15 201140018 端彼此予以熔接的情形相比較,於光纖FI、F2彼此的連 接部處產生的洩漏光的光強度變大。結果,能夠以高效率 來使光纖F1、F2中傳播的光的一部分傳播至受光元件2, 因此’存在如下的優點’即,即使於光纖FI、F2中傳播 的光的光強度比較小時,亦可穩定地對活性狀態進行檢測。 此處,作為本實施形態的其他形態,亦可考慮如下所 述的構成6 ,即,例如,如圖2所示,亦可以於將洩漏光產生部 1與受光元件2的受光面2a予以連結的直線上亦形成導光 路位的方式,自党光元件2的受光面2a與光纖F2的包覆 f 12的外周面之間朝洩漏光產生部丨側延伸設置著透明附 著層3。具體而言,將構成透明附著層3的附著劑不僅塗 佈於受光το件1的受光面h與對向於該受光面&的光纖 F2的包覆層12的外周面之間,而且亦塗佈 的沒漏光產生部1側的端部處連結著誠光產生部ι的面 與對向於該面的光纖F2的包覆層12的外周面之間 來擴大透明附著層3的形成範圍。於該構成中,用以^ 漏光產生部1處產生的賴光料至受技件2的導路 控擴大,亦可將原本氣令的光料至受光 1 ’於浪漏光產生部1處產生的喊光的受光元件2中,成 光效率變得更高。 & 又’例如’如圖3所示’受光元件2亦可以使受光 &朝向賴絲生部1 _方式,相對於域F2的外^ 面傾斜地配置。於圖3的例子中,將構成透_著層3 ^ 201140018 附著劑堆積於光纖F2的包覆層12的外周面的一部分藉 此來使光纖F2的光軸方向上的透賴著層3的兩側面% 傾斜,將受光元件2配置於該傾斜的一個侧面%,藉此來 使觉光元件2傾斜。根據該構成,由於受光元件2使受光 面2a朝為漏光產生部1側傾斜,因此,於洩漏光產生部1 處產生的洩漏光相對於受光面2a的入射角變小,實質性的 受光面積變大,從而能夠以更高的效率來接受該洩漏光產 生部1處洩漏的光。 此外,如圖4所示,亦可於光纖F2的包覆層12的外 周面上的洩漏光產生部1與透明附著層3之間,形成如下 的透鏡構造4,該透鏡構造4使洩漏光產生部丨處產生的 洩漏光朝透明附著層3折射。將對於洩漏光產生部丨處產 生的洩漏光為透明的附著劑附著於光纖F2包覆層12的的 外周面,利用表面張力來使該附著劑的表面固化為大致球 面狀,藉此來形成透鏡構造4。於是,於洩漏光產生部工 處洩漏的光的一部分入射至包含附著劑的透鏡構造4,然 後朝透明附著層3配光而到達受光元件2。藉此,當於、、戈 漏光產生部1處洩漏的光自光纖F2的包覆層12的外周面 上的透明附著層3以外的部位洩漏時,可利用透鏡構造4 來使該洩漏的光的一部分返回至透明附著層3,從而能夠 以更高的效率來接受該洩漏光產生部1處浪漏的光。b 然而,洩漏光產生部1的構成並不限於以上述方式來 使光轴於光纖FI、F2之間錯開的構成,例如,亦可^用 如圖5、圖6所示的構成。 17 201140018 於圖5 _子巾’藉域㈣(gap)介於兩根光纖 F1、F2之間而形成洩漏光產生部i,於兩根光纖打、打 之間形成柚準部分’使光產生顏,使1分的光茂漏 至光纖F2的包覆層12。因此’可藉由對兩根光纖F1、F2 之間的間隔進行調整來管理洩漏的光量。 於圖6的例子中,藉由將兩根光纖打、们的彼此對 接的端面設為不對準形狀而構成洩漏光產生部i。亦即, 將兩根光纖F1、F2的連接端面研磨為互不相同的形狀(此 處,傾斜地對其中一根光纖F1的端面進行研磨,將另一 根光纖F2的端面研磨為突出著纖芯u的形狀),藉此而 於兩根光纖F卜F2之間形成不對準部分,使光產生洩漏, 從而使一部分的光洩漏至光纖以的包覆層12〇 此外’如圖7所示,除了形成有洩漏光產生部1之外, 亦形成有於洩漏光產生部1與受光元件2之間以比光纖打 更小的曲率半徑而多次彎曲的微曲(micr〇 bend)部5,因 此,亦考慮產生微曲損失。藉此,纖芯u與包覆層12的 邊界面上的全反射條件不成立,光易於自光纖F2的外周 面的设置有透明附著層3的部位洩漏,從而可使受光元件 2中的受光量增加。於該情形時,洩漏光產生部i不一定 必須以上述方式因不對準而產生漏光,即使設為僅將兩根 光纖FI、F2之間予以熔接的構造,亦可利用微曲部5來 產生 漏光。 (實施形態2) 本實施形態的活線檢測裝置與實施形態1的活線檢測 201140018 裝置的不同點在於:如圖8所示,使兩根光纖FI、F2產 生使光軸彼此交叉的角度,將該兩根光纖FI、F2予以連 接’藉此來構成或漏光產生部1。 亦即,於兩根光纖FI、F2的連接部,使各光纖F1、 F2的纖芯11的光軸彼此不處於同一直線上,藉此而於兩 根光纖FI、F2之間形成不對準部分,使光產生洩漏,從 而使一部分的光洩漏至光纖F2的包覆層12。於該情形時, 藉由熔接或附著來將兩根光纖FI、F2的端面彼此予以接 合0 又,作為本實施形態的其他構成例,如圖9所示,亦 可配合兩根光纖FI、F2之間的角度,傾斜地對至少其中 一根光纖FI、F2 (於圖9的例子中僅為光纖F2)的端面 進行切割’使光纖FI、F2的端面彼此的密著度提高。於 該構成中,可抑制光自光纖FI、F2的端面之間朝空氣中 洩漏,從而使受光元件2中的受光效率提高。此處,為了 使光纖F2端面上的由反射引起的損耗(回程損耗(return loss))減少,較為理想的是將對光纖F2的端面進行切割 的角度例如設為相對於光轴的垂直面成8度左右。 其他構成以及功能與實施形態1相同。 (實施形態3) 本實施形態的活線檢測裝置與實施形態1的活線檢測 裝置的不同點在於:如圖1〇 (a)至圖10 (c)所示,利用 加強套筒6來將光纖F1、F2的連接部(洩漏光產生部1 ) 予以覆蓋,使該連接部的強度提高。 201140018 該加強套筒6以連接部的兩侧的規定長度而套於光纖 F1、F2 ’將加強用的支持板7與光纖F1、F2 一併插通於 加強套筒6,藉此來保護光纖F2的連接部。受光元件 2疋以使受光面2a露出的形式,嵌入於支持板7中的與光 纖F2的包覆層12的的外周面相對向的部位,且與支持板 7-體化’該受光元件2彻透明附著層3 _著於光纖 F2的包覆層12的外周面。再者,與受光元件2進行電性 連接的導線2b經由支持板7内而㈣至保護套筒6的外 此處’藉由使支持板7與受光元件2—體化 如下的優點’即’容易將受光元件2定位於光纖F1 /F2。 ί體相而圖1G(〇所示,於支持板7中的與光纖F1、 相二向的面的長度方向的大致中央設置定位標記 mar卜且預先對該定位標記M1與受光元件2的位 置關係進行設定。藉此,使定位標記M1對準光纖Η、^ 的連接部(漏光產生部1 ),藉此,可將受光元件2配置 於與'搞光產生部i她最佳距_位置 活線檢測裝置,受光元件2朗漏光產生部丨之^^ 生不均-’從㈣_受光树2t的受光效率的 而且 右㈣缦晉筒6的内周面以及支持板 的外周面或編產生一漏從=受t12 S 201140018 The coating layer of a predetermined length is removed from the one end side of each of the optical fibers FI and F2. The outer circumferential surface of the plain wire (that is, the outer circumferential surface of the coating layer 12) is exposed. The light-receiving element 2 is such that the light-receiving surface 2a is placed on the side of the cladding layer 12 of the optical fiber F2, and adheres to the outer peripheral surface of the cladding layer 12 of the optical fiber F2 via the transparent adhesion layer 3. Further, the light receiving element 2 is disposed at a predetermined length (for example, 2 mm to 5) from the leak light generating portion (that is, the connecting portion between the two optical fibers F1 and F2) in the optical axis direction of the other optical fiber F2. Mm or so). A glass fiber (glass fiber) excellent in propagation loss, transmission bandwidth, and mechanical strength such as mechanical strength in various optical fibers FI and F2 is used as each of the optical fibers FI and F2. Here, the quartz glass fiber used as the optical fibers F1 and F2 of the present embodiment is a single-mode (SM type) fiber, but is not limited to the single-mode fiber, and a step-index (or Index) (SI type) Multimode fiber or graded index type (GI type) multimode fiber. Further, each of the optical fibers FI and F2 is not limited to a quartz glass optical fiber, and a component glass optical fiber or a plastic fiber may be used. When the one ends of the two optical fibers F and F2 are welded to each other, the end faces of the one end side of the two optical fibers F and F2 are butted, and the arc discharge (the muscle discharge) is used to add the sun and then cool. Thereby, the two optical fibers FI and F2 are connected. The light propagating in the optical fiber 1 is assumed to be, for example, light having a wavelength of 131 Å or light having a wavelength of 850 nm, and an epoxy (epGXy) resin which is an adhesive agent transparent to light of the above wavelength. Alternatively, the transparent adhesion layer 3 may be formed by using an acrylic (6) system 13 201140018 resin or the like. Further, it is not always necessary to form the transparent adhesive layer 3 by a material having a higher refractive index than the cladding layer 12, and the transparent adhesive layer 3 may be formed of a material having an intermediate refractive index of the air and the cladding layer 12. Here, in the light-receiving element 2, when the wavelength of light (i.e., light for optical communication) transmitted in the optical fibers F1 and F2 is in the wavelength region of the 丨μη band (for example, 1310 nm), it is used here! In the InGaAs photodiode wafer of the party light sensitivity in the wavelength region of the μηι band, when the wavelength of the light is in the wavelength region of 〇.8 μιη band (for example, 85 〇 nm), the 〇8 = Si with high sensitivity in the wavelength region is used. The photodiode wafer can be used. For example, when the light in the wavelength region of the 1 μπι band propagates in the optical line in the wavelength region of the & 8 μηι band, the light-receiving element 2 having a high light-sensing sensitivity is provided in each wavelength region. In the form of the live line detecting device, the transparent adhesion layer 3 has a light guiding path formed between the outer peripheral surface of the other optical fiber F2 and the illuminating surface 2a of the light receiving element 2, and the light guiding path is for the leak light generating portion. i. The leaked light is guided to the light receiving element 2. That is, as described above, the transparent adhesive layer 3 includes an adhesive agent that is transparent to the light leaked from the leak light generating portion 1. The transparent adhesive layer 3 not only attaches the light-receiving element 2 to the optical fiber F2 but also generates leakage light. The light leaked at the portion 1 is guided to the light guiding path of the light receiving element 2. Here, the transparent adhesive layer 3 is adhered to the entire light receiving surface 2a of the light receiving member 2, and the light receiving element 2 receives light passing through the light guiding path from the entire surface of the light receiving surface. In short, among the leaked light generated at the leaked light generating portion 1, even at the boundary of the coating layer 12 and the air at 201140018, a light having an incident complementary angle larger than the critical angle of the total reflection leaks from the cladding layer 12 and The light that is emitted to the outside, but the incident complement angle is less than the critical angle of total reflection, is totally reflected at the boundary of the cladding layer 12 and the air. Here, in the case where the quartz glass fiber is used as the two fibers FI and F2 as in the present embodiment, since the refractive index difference between the cladding layer 12 and the air is large, the leak light generating portion 1 is generated. In the case of the leaked light, the ratio of total reflection occurring at the boundary between the cladding layer 12 and the air to the majority of the leaked light generated at the leaked light generating portion 1 propagates in the cladding layer 12. On the other hand, since the refractive index difference between the cladding layer and the transparent adhesion layer 3 is smaller than the refractive index difference between the cladding layer 12 and the air, the leakage light generated at the leaked light generating portion 1 is applied to the cladding layer 12 The ratio of the light that is totally reflected at the interface with the transparent adhesion layer 3 is small, and the leaked light reaches the light-receiving surface 2a of the light-receiving element 2 from the interface between the cladding layer 12 and the transparent adhesion layer 3. According to the configuration described above, a part of the light leaking from the leak light generating unit 自 reaches the light receiving surface 2a of the light receiving element 2 via the light guiding path including the transparent adhesion layer 3 from the outer peripheral surface of the coating layer 12 of the optical fiber F2. The light is efficiently guided to the light receiving element 2 as compared with the case of propagation in the air. In other words, compared with the case where the air layer is interposed between the outer peripheral surface of the optical fiber F2 and the light receiving surface 2a of the light receiving element 2, the light leaking from the light leakage generating portion 1 can be efficiently guided by the transparent adhesive layer 3. To the light-receiving element 2, it is possible to ensure leaked light that is stable to the light-receiving element 2. Further, by providing the leaked light generating unit 1 at the connection portion between the two optical fibers FI and F2, and comparing the case where one of the 15 Fibres Fi and F2 is connected to each other so that the connection loss is minimized, The light intensity of the leaked light generated at the connection portion between the optical fibers FI and F2 becomes large. As a result, a part of the light propagating in the optical fibers F1 and F2 can be propagated to the light-receiving element 2 with high efficiency. Therefore, there is an advantage that even if the light intensity of the light propagating in the optical fibers FI and F2 is small, The active state can be stably detected. Here, as another aspect of the present embodiment, the configuration 6 described below may be considered. For example, as shown in FIG. 2, the leak light generating unit 1 and the light receiving surface 2a of the light receiving element 2 may be connected. The light guide path is also formed on the straight line, and the transparent adhesion layer 3 is extended from the light receiving surface 2a of the party light element 2 and the outer peripheral surface of the coating f12 of the optical fiber F2 toward the leak light generating part. Specifically, the adhesive agent constituting the transparent adhesive layer 3 is applied not only between the light-receiving surface h of the light-receiving member 1 but also the outer peripheral surface of the coating layer 12 of the optical fiber F2 facing the light-receiving surface & The end portion of the applied light-non-light generating portion 1 side is connected between the surface of the honest light generating portion ι and the outer peripheral surface of the coating layer 12 of the optical fiber F2 facing the surface to enlarge the range in which the transparent adhesive layer 3 is formed. In this configuration, the light guide for generating the light-receiving portion generated at the light leakage generating portion 1 to the subject member 2 is enlarged, and the light of the original gas can be generated to the light-receiving light 1' at the light leakage light generating portion 1. In the light-receiving element 2 of the shouting light, the light-forming efficiency becomes higher. & Further, for example, as shown in Fig. 3, the light-receiving element 2 may be arranged such that the light-receiving portion is inclined toward the outer surface of the field F2. In the example of FIG. 3, a part of the outer peripheral surface of the cladding layer 12 in which the adhesive layer 3 ^ 201140018 is deposited on the optical fiber F2 is formed so as to pass through the layer 3 in the optical axis direction of the optical fiber F2. The both side faces are inclined, and the light receiving element 2 is disposed on one side of the inclined side, whereby the light sensing element 2 is tilted. According to this configuration, the light-receiving element 2 is inclined toward the light-emitting surface 1 side by the light-receiving element 2, so that the incident angle of the leaked light generated at the leaked light generating unit 1 with respect to the light-receiving surface 2a is small, and the substantial light-receiving area is obtained. The size becomes large, so that the light leaked at the leak light generating portion 1 can be received with higher efficiency. Further, as shown in FIG. 4, a lens structure 4 may be formed between the leak light generating portion 1 on the outer peripheral surface of the cladding layer 12 of the optical fiber F2 and the transparent adhesion layer 3, and the lens structure 4 may cause leakage light. The leaking light generated at the generating portion is refracted toward the transparent adhesive layer 3. The adhesive agent which is transparent to the leak light generated in the leak light generating portion is adhered to the outer peripheral surface of the coating layer 12 of the optical fiber F2, and the surface of the adhesive is solidified into a substantially spherical shape by surface tension. Lens construction 4. Then, a part of the light leaked from the leak light generating portion is incident on the lens structure 4 including the adhesive, and then distributed to the transparent adhesion layer 3 to reach the light receiving element 2. Thereby, when the light leaking from the light leakage generating portion 1 leaks from a portion other than the transparent adhesive layer 3 on the outer peripheral surface of the coating layer 12 of the optical fiber F2, the leaked light can be made by the lens structure 4. A part of the material is returned to the transparent adhesion layer 3, so that light leaking from the leak light generating portion 1 can be received with higher efficiency. b However, the configuration of the leak light generating unit 1 is not limited to the configuration in which the optical axis is shifted between the optical fibers FI and F2 as described above. For example, the configuration shown in Figs. 5 and 6 may be employed. 17 201140018 In Figure 5 _ sub-zone 'four (g) between the two fibers F1, F2 to form a leak light generating part i, between the two fibers hit, hit the formation of the grapefruit portion 'to make light The pigment is leaked to the cladding layer 12 of the optical fiber F2. Therefore, the amount of light leaked can be managed by adjusting the interval between the two fibers F1 and F2. In the example of Fig. 6, the leak light generating portion i is constituted by forming the end faces of the two optical fibers that are in contact with each other in a misaligned shape. That is, the connecting end faces of the two optical fibers F1, F2 are ground into mutually different shapes (here, the end faces of one of the optical fibers F1 are obliquely ground, and the end faces of the other optical fibers F2 are ground to protrude from the core a shape of u), thereby forming a misalignment between the two fibers Fb, causing light to leak, thereby causing a portion of the light to leak to the cladding 12 of the optical fiber. Further, as shown in FIG. In addition to the leakage light generating unit 1 , a micr〇bend portion 5 that is bent a plurality of times between the leak light generating unit 1 and the light receiving element 2 with a smaller curvature radius than the optical fiber is formed. Therefore, it is also considered to produce a micro-curve loss. Thereby, the total reflection condition on the boundary surface between the core u and the cladding layer 12 is not established, and light is likely to leak from the portion of the outer peripheral surface of the optical fiber F2 where the transparent adhesion layer 3 is provided, and the amount of light received in the light receiving element 2 can be made. increase. In this case, the leak light generating unit i does not necessarily have to leak light due to misalignment as described above, and even if only the two optical fibers FI and F2 are welded to each other, the thin curved portion 5 can be used. Light leaks. (Embodiment 2) The live line detecting device of the present embodiment is different from the live line detecting 201140018 device of the first embodiment in that, as shown in Fig. 8, the two optical fibers FI and F2 are caused to have an angle at which the optical axes intersect each other. The two optical fibers FI and F2 are connected 'by this to constitute or leak the light generating portion 1. That is, at the connection portion between the two optical fibers FI and F2, the optical axes of the cores 11 of the respective optical fibers F1 and F2 are not in line with each other, thereby forming a misaligned portion between the two optical fibers FI and F2. The light is leaked, so that a part of the light leaks to the cladding layer 12 of the optical fiber F2. In this case, the end faces of the two optical fibers FI and F2 are joined to each other by welding or adhesion. As another configuration example of the present embodiment, as shown in FIG. 9, two optical fibers FI and F2 may be combined. The angle between the end faces of at least one of the optical fibers FI and F2 (only the optical fiber F2 in the example of Fig. 9) is obliquely inclined to increase the adhesion between the end faces of the optical fibers FI and F2. In this configuration, it is possible to suppress light from leaking from the end faces of the optical fibers FI and F2 toward the air, thereby improving the light receiving efficiency in the light receiving element 2. Here, in order to reduce the loss (return loss) caused by reflection on the end face of the optical fiber F2, it is preferable that the angle at which the end face of the optical fiber F2 is cut is, for example, a vertical plane with respect to the optical axis. 8 degrees or so. Other configurations and functions are the same as those in the first embodiment. (Embodiment 3) The live line detecting device according to the first embodiment differs from the wire detecting device of the first embodiment in that the reinforcing sleeve 6 is used as shown in Figs. 1(a) to 10(c). The connection portion (leakage light generating portion 1) of the optical fibers F1 and F2 is covered, and the strength of the connection portion is improved. 201140018 The reinforcing sleeve 6 is sleeved on the optical fibers F1, F2 ' with a predetermined length on both sides of the connecting portion. The supporting plate 7 for reinforcement is inserted into the reinforcing sleeve 6 together with the optical fibers F1 and F2, thereby protecting the optical fiber. The connection part of F2. The light-receiving element 2 is embedded in a portion of the support plate 7 that faces the outer peripheral surface of the cladding layer 12 of the optical fiber F2, and is formed in the support plate 7 to form the light-receiving element 2 The transparent adhesion layer 3 is placed on the outer peripheral surface of the cladding layer 12 of the optical fiber F2. Further, the wire 2b electrically connected to the light-receiving element 2 passes through the support plate 7 and (4) to the outside of the protective sleeve 6 by the advantage of the support plate 7 and the light-receiving element 2 being as follows. It is easy to position the light receiving element 2 on the optical fibers F1 /F2. In the case of FIG. 1G (shown in FIG. 1A, positioning marks marb are provided in the center of the support plate 7 in the longitudinal direction of the surface of the optical fiber F1 and the two directions, and the position of the positioning mark M1 and the light receiving element 2 is previously set. The relationship is set. Thereby, the positioning mark M1 is aligned with the connection portion (light leakage generating portion 1) of the optical fiber Η, and the light receiving element 2 can be disposed at the position of the optimum light source _ The live line detecting device, the unevenness of the light-receiving element 2, the unevenness of the light-emitting portion, the light-receiving efficiency of the light-receiving tree 2t, and the inner peripheral surface of the right (four) 缦 筒 6 and the outer peripheral surface of the support plate Produce a leak from = by t

S 20 201140018 的受光效率提高。 又,作為本實施形態的其他構成例,亦可考慮如圖n 所示,使對於洩漏光產生部1處洩漏的光為透明^稜鏡8, 介於光纖F2的包覆層12的外周面與受光元件2的受光面 2a之間。於圖丨丨的例子中,使用大致三角柱狀的稜鏡8, 且利用透明附著層3來將稜鏡8的一個側面附著於光纖]?2 的外周面,利用透明附著層3來將稜鏡8的另一側面附著 於受光元件2的受光面2a。 藉此,與實施形態1中所說明的圖3的例子同樣地, 以使爻光面2a朝向或漏光產生部1側的方式,相對於光纖 F2的外周面傾斜地配置受光元件2,從而可高效率地接受 5亥>贫漏光產生部1處>戈漏的光。而且,於該構成中,可根 據稜鏡8的形狀(上述一個側面與上述另一個側面之間的 角度)來對受光元件2的受光面2a、的傾斜角度進行設定, 從而可精度良好地確定受光元件2中的受光效率。此外, 於圖11的例子中,於未持板7中設置有用以避免干涉該稜 鏡8的開口 7a,且亦於保護套筒6中的與開口 7a相對應 的位置設置有孔。 其他構成以及功能與實施形態1相同。 (實施形態4) 本實施形態的活線檢測裝置與實施形態1的活線檢測 裝置的不同點在於:設置有使該洩漏光產生部i處產生的 洩漏光擴散的單元。 例如’如圖12所示,可考慮使光纖的覆蓋層13 21 201140018 的-部分前於韻光產生部丨附近㈣該覆蓋㈣予以 除去,自該^蓋層I3的上方藉由透明附著層3來附著受光 :件2 層13疋採用如下的覆蓋層,該覆蓋層 子於該減光產生部1處細的光為透明,且因著色而被 賦予光擴散性。於該構射,錢F2巾的 外周面誠至覆蓋層13的光於該覆 面2a 以擴大的狀態經由透_著層3而到 ^受^ 又’作為其他構成例,亦可考慮如圖13解,使私 光擴散透射性_片(sheet)等_散構件14介於耐 光纖Π、F2的端面之間1散構件14亦可為附著劑。方 該構成中,當來自光纖F1的光經由擴散構件14時料 散,然後以擴大的狀態經由透_著層3 卡 2的受光面2a。 進而,作為其他構成例,可考慮如圖Μ所示,對於> 纖F2中的茂漏光產生部丨與受光元件2之_包覆層) 外周面,實施稽皺加工或藉由飯刻(etcWng)來實施凹凸 v槽加工’藉此來設置擴散加卫部15。於該情形時,細 至光纖F2的包覆層12的光因擴散加工部15而擴散,势 後以擴大的狀態經由透明附著層3而到達受光元件2的邊 光面2a。 根據以上所說明的本實施形態的活線檢測震置,可使 該韻光產生部1處產生的韻光擴散,結果,存在如下 的優點,即,即便對於各活線檢測裝置,受光元件2與洩The light receiving efficiency of S 20 201140018 is improved. Further, as another configuration example of the present embodiment, it is conceivable that the light leaking to the leak light generating portion 1 is made transparent as shown in Fig. n and is interposed on the outer peripheral surface of the cladding layer 12 of the optical fiber F2. Between the light receiving surface 2a of the light receiving element 2. In the example of FIG. ,, a substantially triangular columnar crucible 8 is used, and one side surface of the crucible 8 is attached to the outer peripheral surface of the optical fiber ???2 by the transparent adhesion layer 3, and the transparent adhesion layer 3 is used to 稜鏡The other side surface of 8 is attached to the light receiving surface 2a of the light receiving element 2. In the same manner as the example of FIG. 3 described in the first embodiment, the light-receiving element 2 is disposed obliquely with respect to the outer peripheral surface of the optical fiber F2 so that the illuminating surface 2a faces the light-emitting surface 1 side. It is efficient to receive the light of the 5 mile > light leakage generating unit 1 > Further, in this configuration, the inclination angle of the light receiving surface 2a of the light receiving element 2 can be set according to the shape of the crucible 8 (the angle between the one side surface and the other side surface), and the angle can be accurately determined. Light receiving efficiency in the light receiving element 2. Further, in the example of Fig. 11, an opening 7a for avoiding interference with the prism 8 is provided in the unsupported plate 7, and a hole is also provided at a position corresponding to the opening 7a in the protective sleeve 6. Other configurations and functions are the same as those in the first embodiment. (Embodiment 4) The line detecting device of the present embodiment is different from the line detecting device of the first embodiment in that a means for diffusing the leaked light generated by the leaked light generating portion i is provided. For example, as shown in FIG. 12, it is conceivable that the portion of the cover layer 13 21 201140018 of the optical fiber is removed from the vicinity of the rhyme generating portion ( (4), and the cover (4) is removed, and the transparent cover layer 3 is provided from above the cap layer I3. The light-receiving light is applied to the second layer 13 of the member, and the cover layer is transparent to the light at the light-reducing portion 1 and imparts light diffusibility due to coloring. In this configuration, the outer peripheral surface of the money F2 towel is as long as the light of the cover layer 13 is expanded in the state of the cover surface 2a via the through layer 3, and is also used as another configuration example. The diffusing member 14 may be an adhesive agent between the end faces of the fiber-resistant Π and F2. In this configuration, when the light from the optical fiber F1 passes through the diffusion member 14, it is scattered, and then passes through the light-receiving surface 2a of the layer 3 card 2 in an enlarged state. Further, as another configuration example, it is conceivable that the outer peripheral surface of the light-emitting light generating portion & and the light-receiving element 2 in the fiber F2 is subjected to crease processing or by rice cooking (as shown in FIG. The etc. is used to perform the concave-convex v-groove processing 'by this, and the diffusion reinforcement part 15 is provided. In this case, the light of the cladding layer 12 of the optical fiber F2 is diffused by the diffusion processing portion 15, and then reaches the edge surface 2a of the light receiving element 2 via the transparent adhesion layer 3 in an enlarged state. According to the live line detection vibration of the present embodiment described above, the rhythm light generated by the rhyme generating unit 1 can be diffused. As a result, there is an advantage that the light receiving element 2 is used for each of the live line detecting devices. And vent

S 22 201140018 漏光產生部1之間的距離發生不均一,亦可抑制受光元件 2中的受光效率的:^均…亦即,由於在該$漏光產生部i 處產生的洩漏光一面擴散一面到達受光元件2,因此,與 該茂漏光不擴散的情形相比較’對於受光元件2中的受光 效率而言,不易因受光元件2與汽漏光產生部叉之間的距 離而發生不均-。X,對於受光效率而言,亦不易因受光 元件2的位置與光纖F2的光軸的錯位而發生不均一。 其他構成以及功能與實施形態1相同。 (實施形態5) 本實施形態的活線檢測裝置與實施形態i的活線檢測 裝置的不同點在於:如圖15所示,設置有再塗層9,該再 塗層9藉由將光纖F1、F2彼此的連接部(茂漏/產生部υ 予以覆蓋來保護該連接部。 再塗層9是於將光纖η,予以接合(炼接)之後, 藉由對各光纖F卜F2的連接部周邊已除去了覆蓋層13的 部分的整個區域進行塗佈而形成’該再塗層9的兩θ端部構 成為分別稍微覆蓋於各光纖Fb F2的覆蓋層13。藉由以 上述方式設置再塗層9,可使光纖!^,的連接部^強度 提高。 =’於再塗層9巾使麟於糾漏光產生部i處茂 漏的^為透明的材料,自該再塗層9的上方藉由透明附著 層3來附著受光元件2。因此,光纖F2中的自包覆層η 至再塗層9的光經由該再塗層9以及透明附 者層3而到達文光元件2的受光面&。 23 201140018 眘’若由光擴散透射性材料來形成再塗層9,則如 實施形態4中的說衡述’可彻再塗層9來 產=1處產生的、祕光擴散,結果,即使對於各活線檢 測裝置,受光元件2誠漏光產生部i之_距離發生不 均一,亦可抑制受光元件2中的受光效率的不均一。 其他構成以及功能與實施形態1相同。 然而,於上述各實施形態中,例示了包含透明的附著 劑的透明附著層3,作為於光纖F2的外周面與受光元件2 的受光面2a之間形成導光路徑的光透射層,但並不限於該 例=。亦即,形成導光路徑的光透射層只要包含對於該^ 漏光產生部1處洩漏的光為透明的材料,且介於受光=件 2與光纖F2之間即可,例如,亦可為匹配油(被㈣⑹) 等的液狀的制層。於該情形時,雖需要與光透射層不同 的將受光元件2固定於光纖F2的單元,但與透明附著層3 的情形同樣地,可確保對於受光元件2為敎的沒漏光θ。 以上,已以特定的實例為中心來對本發明進行了說 明’但本發明#宗旨以及隨附的申請專利範圍内的各種變 形、變更或修正可屬於上述技術領域,因此,上述說明以 及圖式應解釋為不對本發明的技術思想進行限定而是例示 了本發明。 於不脫離本發明的技術思想的範圍内,可適當地將上 述實例加以組合。 雖然本發明已以較佳實施例揭露如上,然其並非用以 限定本發明’任何熟習此技藝者,在不脫離本發明之精神 201140018 和範圍内’當可作些許之更動與潤飾,因此本發明之保護 範圍當視後附之申請專利範圍所界定者為準。 ^ 【圖式簡單說明】 圖1是表示本發明的實施形態丨的構成的概略平面圖。 圖圖2是表示上述實施形態1的其他構成例的概略平面 圖3疋表示上述實施形態1的又一構成例的概略平面 圖。 圖4疋表示上述貫施形態1的又一構成例的概略 圖。 圖5是表示上述實施形態丨的又一構成例的概略 圖。 圖6是表示上述實施形態丨的又一構成例的概略 圖。 圖7是表示上述實施形態1的又一構成例的概略平 圖。 圖8是表示本發明的實施形態2的構成的概略平面圖。 圖9是表示上述實施形態2的其他構成例的概略平面 圖。 圖10(a)〜圖l〇(c)表示本發明的實施形態3的概略構 成,圖10 (a)是平面圖,圖10 (b)是側視圖,圖10 (幻 是圖10 (a)的XC-XC剖面圖。 圖11是表示上述實施形態3的其他構成例的概略平面 圖。S 22 201140018 The distance between the light leakage generating units 1 is not uniform, and the light receiving efficiency in the light receiving element 2 can be suppressed: that is, the leak light generated at the light leakage generating unit i is diffused while reaching Since the light-receiving element 2 is compared with the case where the leak light does not diffuse, it is difficult for the light-receiving efficiency in the light-receiving element 2 to be uneven due to the distance between the light-receiving element 2 and the x-ray generating portion fork. X is also less likely to cause unevenness in light receiving efficiency due to misalignment of the position of the light receiving element 2 and the optical axis of the optical fiber F2. Other configurations and functions are the same as those in the first embodiment. (Embodiment 5) The line detecting device of the present embodiment is different from the line detecting device of Embodiment i in that a recoat layer 9 is provided as shown in Fig. 15, and the recoat layer 9 is formed by the optical fiber F1. And the connecting portion of the F2 (the leaking/generating portion υ is covered to protect the connecting portion. The recoating layer 9 is a joining portion of the optical fibers F and F2 after the optical fiber η is joined (finished) The entire area of the portion from which the cover layer 13 has been removed is coated to form 'the two θ ends of the recoat layer 9 are configured to slightly cover the cover layer 13 of each of the optical fibers Fb F2. By setting in the above manner The coating layer 9 can increase the strength of the connection portion of the optical fiber. ^, the material which is leaked at the light-reducing light generating portion i in the recoating layer 9 is transparent material from the recoating layer 9 The light-receiving element 2 is attached to the upper portion by the transparent adhesion layer 3. Therefore, the light from the cladding layer η to the recoat layer 9 in the optical fiber F2 reaches the illuminating element 2 via the recoat layer 9 and the transparent appendage layer 3. Light-receiving surface & 23 201140018 Caution If the re-coating layer 9 is formed by a light-diffusing transmissive material, In the fourth aspect, it is said that the secret light is diffused by the recoating layer 9 and the secret light is diffused. As a result, even for each of the live line detecting devices, the distance of the light-receiving element 2 is uneven. Further, the unevenness of the light-receiving efficiency in the light-receiving element 2 can be suppressed. Other configurations and functions are the same as those in the first embodiment. However, in each of the above embodiments, the transparent adhesive layer 3 including a transparent adhesive agent is exemplified as the optical fiber. A light transmitting layer that forms a light guiding path between the outer peripheral surface of F2 and the light receiving surface 2a of the light receiving element 2 is not limited to this example. That is, the light transmitting layer forming the light guiding path is only required to include the light leakage generating portion. The light leaking at one place is a transparent material, and may be between the light-receiving member 2 and the optical fiber F2. For example, it may be a liquid layer such as a matching oil ((4) (6)). In this case, A unit for fixing the light-receiving element 2 to the optical fiber F2 different from the light-transmitting layer is required. However, similarly to the case of the transparent adhesive layer 3, it is possible to ensure no light leakage θ to the light-receiving element 2. The above is a specific example. The center comes to the invention It is to be understood that the invention is not limited to the technical idea of the present invention, but various modifications, changes, or modifications within the scope of the appended claims may be made. The present invention is exemplified. The above examples may be combined as appropriate without departing from the spirit of the present invention. Although the present invention has been disclosed in the preferred embodiments as described above, it is not intended to limit the present invention. The scope of protection of the present invention is defined by the scope of the appended claims. ^ [Simple description of the drawings, without departing from the spirit and scope of the present invention. Fig. 1 is a schematic plan view showing a configuration of an embodiment of the present invention. Fig. 2 is a schematic plan view showing another configuration example of the first embodiment. Fig. 3A is a schematic plan view showing still another configuration example of the first embodiment. Fig. 4A is a schematic view showing still another configuration example of the above-described first embodiment. Fig. 5 is a schematic view showing still another example of the configuration of the above embodiment. Fig. 6 is a schematic view showing still another example of the configuration of the above embodiment. Fig. 7 is a schematic plan view showing still another configuration example of the first embodiment. Fig. 8 is a schematic plan view showing a configuration of a second embodiment of the present invention. Fig. 9 is a schematic plan view showing another configuration example of the second embodiment. Fig. 10 (a) to Fig. 10 (c) show a schematic configuration of a third embodiment of the present invention, Fig. 10 (a) is a plan view, Fig. 10 (b) is a side view, and Fig. 10 (figure 10 (a) Fig. 11 is a schematic plan view showing another configuration example of the third embodiment.

25 S 201140018 圖12是表示本發明的實施形態4的構成的概略平面 圖。 圖13是表示上述實施形態4的其他構成例的概略平面 圖。 圖14是表示上述實施形態4的又一構成例的概略平面 圖。 圖15是表示本發明的實施形態5的構成的概略平面 圖。 【主要元件符號說明】 1 :洩漏光產生部 2:受光元件 2a :受光面 2b =導線 3:透明附著層 3a :側面 4 : 透鏡構造 5 : 微曲部 6 : 保護套筒 7 : 支持板 7a :開口 8 : 棱鏡 9 : 再塗層 11 :纖芯 201140018 13 :覆蓋層 14 :擴散構件 15 :擴散加工部 A:光線路徑 FI、F2 :光纖 Ml :定位標記25 S 201140018 Fig. 12 is a schematic plan view showing a configuration of a fourth embodiment of the present invention. Fig. 13 is a schematic plan view showing another configuration example of the fourth embodiment. Fig. 14 is a schematic plan view showing still another configuration example of the fourth embodiment. Fig. 15 is a schematic plan view showing the configuration of a fifth embodiment of the present invention. [Description of main component symbols] 1: Leakage light generating unit 2: Light receiving element 2a: Light receiving surface 2b = Conducting wire 3: Transparent adhesive layer 3a: Side surface 4: Lens structure 5: Micro curved portion 6: Protective sleeve 7: Support plate 7a : Opening 8 : Prism 9 : Recoating 11 : Core 201140018 13 : Cover layer 14 : Diffusion member 15 : Diffusion processing part A: Ray path FI, F2 : Fiber Ml : Positioning mark

Claims (1)

201140018 七、申請專利範圍: I 一種活線檢測裝置’檢測將兩根光纖的一端彼此予 以連接而形成的光線路徑是否處於活線狀態,該活線檢測 裝置的特徵在於包括:洩漏光產生部,設置於兩根光纖彼 =的連接部且使於其中一根光纖的纖芯内傳播的光的一部 分茂漏至另-根光纖的包覆層;受光元件,對自受光面入 射的於上述茂漏光產生部處洩漏的光進行檢測;以及光透 射層,包含對於上述洩漏光產生部處洩漏的光為透明的材 料且介於上述受光元件與上述另一根光纖之間,上述光透 射層於上述另一根光纖的外周面與上述受光元件的上述受 光面之間’形成用以將上述浪漏光產生部處泡漏的光引導 至上述受光元件的導光路徑,上述受光元件以使上述受光 面朝向上述洩漏光產生部側的方式,以相對於上述另一根 光纖的外周面而傾斜地配置。 2. 如申請專利範圍第1項所述之活線檢測裝置,其中 於^述光纖的外周面與上述受光元件的上述受光面之 &有對於上述賴光產生部處誠的光為透明的複 、兄’上述光透射層相介於上述稜鏡的—個面與上述光纖 之間以及上述稜鏡的另—個面與上述受光元件之間。 3. -種活線檢囉置,檢騎兩根光纖的—端彼此予 彡朗光鱗徑是聽於活隸態,紐線檢測 在於包括:$漏光產生部,設置於兩根光纖彼 ν,邛且使於其中一根光纖的纖芯内傳播的光的一部 为戌漏至另-根光_包覆層;受光元件,對自受光面入 £ 28 201140018 射的於上述洩漏光產生部處洩漏的光進行檢測;光透射 層’包含對於上述洩漏光產生部處洩漏的光為透明的材料 且介於上述受光元件與上述另一根光纖之間;以及再塗 層’對於上述洩漏光產生部處洩漏的光為透明,且將上述 兩根光纖彼此的連接部予以覆蓋,藉此來保護上述連接 部’上述光透射層於上述再塗層的外側,在上述另一根光 纖的外周面與上述受光元件的上述受光面之間,形成用以 將於上述洩漏光產生部處洩漏的光引導至上述受光元件的 導光路徑。 4,一種活線檢測裝置,檢測將兩根光纖的一端彼此予 以連接而形成的光線路徑是否處於活線狀態,該活線檢測 裝置的特徵在於包括:洩漏光產生部,設置於兩根光纖彼 此的連接部且使於其中一根光纖的纖芯内傳播的光的一部 分洩漏至另一根光纖的包覆層;受光元件,對自受光面入 射的於上述,沒漏光產生部處茂漏的光進行檢測;光透射 層’包含對於上述:¾漏光產生部處減的光為透明的材料 士介於上述受光元件與上述另—根光纖之間;以及保護套 筒’供兩根賴彼此的連接部插通,藉此來保護上述連 部从上述光透射層於上述另—根光纖的外周面與上述受光 兀件的上述受彡成用 2 件收容於上賴護套2=的料-,且上述受光元 5. -種活線檢卿置,檢測將兩根光纖的—端 以、接而形成的光線路徑是否處於活線狀態,該活線檢測 29 201140018 裝置的特徵在於包括··洩漏光產生部,設置於兩根光纖彼 此的連接部且使於其中一根光纖的纖芯内傳播的光的一部 分洩漏至另一根光纖的包覆層;受光元件,對自受光面入 射的於上述洩漏光產生部處洩漏的光進行檢測;以及光透 射層,包含對於上述洩漏光產生部處洩漏的光為透明的材 料且介於上述受光元件與上述另一根光纖之間,上述光透 射層於上述另一根光纖的外周面與上述受光元件的上述受 光面之間,形成用以將上述洩漏光產生部處洩漏的光引導 至上述受光元件的導光路徑,於上述另一根光纖的外周面 上的上述洩漏光產生部與上述光透射層之間設置有透鏡構 造,該透鏡構造是使狀上㈣漏光產生部錢漏的光為 透明的附著編著於上述_光產生部與上述光透射層之 間而形成’該魏構造使上述光朝上述光透射層而折射。 6.如申請專利範圍第i項至第5項中任—項所述之活 線檢測裝置,其中 上述光透射層是自上述光纖與外周面與上述受光 的上述受光面之間,沿著上述光_外周面朝 產生部侧延伸而設置。 $ $201140018 VII. Patent application scope: I A live line detecting device detects whether a light path formed by connecting one end of two optical fibers to each other is in a live state, and the live line detecting device is characterized by comprising: a leak light generating portion, a portion of the light that is disposed in the connection portion of the two fibers and that leaks a portion of the light propagating in the core of one of the fibers to the cladding layer of the other fiber; the light-receiving element is incident on the light-receiving surface The light leaking at the light leakage generating portion is detected; and the light transmitting layer includes a material transparent to the light leaking from the leak light generating portion and interposed between the light receiving element and the other optical fiber, wherein the light transmitting layer is A light guiding path for guiding light leaking from the light leakage generating portion to the light receiving element is formed between an outer peripheral surface of the other optical fiber and the light receiving surface of the light receiving element, and the light receiving element causes the light receiving element The surface faces the leak light generating portion side so as to be inclined with respect to the outer peripheral surface of the other optical fiber. 2. The live line detecting device according to claim 1, wherein the outer peripheral surface of the optical fiber and the light receiving surface of the light receiving element are transparent to the light of the light generating portion. The light transmissive layer is interposed between the surface of the crucible and the optical fiber and between the other surface of the crucible and the light receiving element. 3. - A kind of live line inspection device, check the two fibers - the end of each other, the light path is to listen to the live state, the line detection includes: $ light leakage generation, set in two fibers ν And causing one of the light propagating in the core of one of the optical fibers to leak to the other light-coating layer; the light-receiving element is generated from the light-emitting surface into the above-mentioned leaked light. The light leaking at the portion is detected; the light transmitting layer 'containing a material transparent to the light leaking at the leak light generating portion and interposed between the light receiving element and the other optical fiber; and the recoating 'for the above leakage The light leaking from the light generating portion is transparent, and the connecting portion between the two optical fibers is covered, thereby protecting the connecting portion 'the light transmitting layer outside the recoat layer, and the other optical fiber A light guiding path for guiding light leaking from the leak light generating portion to the light receiving element is formed between the outer peripheral surface and the light receiving surface of the light receiving element. 4. A live line detecting device that detects whether a light path formed by connecting one end of two optical fibers to each other is in a live state, and the line detecting device is characterized by comprising: a leak light generating portion disposed on two optical fibers The connecting portion causes a part of the light propagating in the core of one of the optical fibers to leak to the cladding layer of the other optical fiber; the light receiving element is incident on the light receiving surface and leaks at the light leakage generating portion The light is transmitted; the light transmitting layer ′ includes a material that is transparent to the light reduced by the light leakage generating portion and is between the light receiving element and the other optical fiber; and the protective sleeve is provided for the two The connecting portion is inserted to protect the connecting portion from the light transmitting layer on the outer peripheral surface of the other optical fiber and the receiving member 2 of the receiving member to be received in the upper sheath 2 = And the above-mentioned light receiving element is set to detect whether the light path formed by connecting the ends of the two optical fibers is in a live state, and the feature of the live line detection 29 201140018 is The light leakage generating unit includes a connection portion between the two optical fibers and a portion of the light propagating in the core of one of the optical fibers leaking to the cladding layer of the other optical fiber; the light receiving element is self-receiving The light incident on the surface of the leak light generating portion is detected; and the light transmitting layer includes a material transparent to the light leaked from the leak light generating portion and interposed between the light receiving element and the other optical fiber The light transmitting layer forms a light guiding path for guiding light leaking from the leak light generating portion to the light receiving element between the outer peripheral surface of the other optical fiber and the light receiving surface of the light receiving element. A lens structure is provided between the leak light generating portion on the outer peripheral surface of the other optical fiber and the light transmitting layer, and the lens structure is such that the light leaking in the fourth (4) light leakage generating portion is transparent and is attached to the _ light. Formed between the generating portion and the light transmitting layer, the Wei structure refracts the light toward the light transmitting layer. 6. The live line detecting device according to any one of the preceding claims, wherein the light transmitting layer is between the optical fiber and the outer peripheral surface and the light receiving surface of the light receiving, The light_outer peripheral surface is provided to extend toward the generating portion side. $ $
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