1352831 九、發明說明： 一、 【發明所屬之技術領域】 本發明係關於一種光纖片，具有複數之基板，且將前述基板 以立體方式配置。 二、 【先前技術】 近年來，於各式各樣的電子光學機器中，藉由將複數之電路 密集在一起，以實現機器之高密度化及省空間化。為了實現如此 密集的複數之電路間之連接，已有人開發出將柔性光纖與光連接 器組合的各種技術（請參照日本特許公開公報第2574611號）。 如圖7所示，上述特許公開公報第2574611號所記載之光學 連接裝置包含本體部101、由本體部101延伸之複數之凸片102， 並具有由可撓性片材所形成的基板100。前述基板100上設有複數 條光纖。前述凸片102之端部處設有將光纖以可連接方式終接之 光纖終端機構。 前述基板100能使電路封裝200所包含之印刷電路板201之 間達成光學連接。基板100的凸片102之端部的終端部，係被插 入於電路封裴200之光連接器202中。此時，為使各凸片102的 終端部與光連接器202之方向相匹配，而將各凸片102相對基板 100之方向扭轉約90度。依日本專利公報第2574611號所記載之 發明，已實現上述以立體方式配置的電路板之光接線。 三、 【發明内容】 發明所欲解決之問題 曰本專利公報第2574611號所記載之發明中，當配置於各電 路板之光連接器202，係分別為單一個的情況下，利用上述凸片將 1352831 前述電路板連接的方法係有效的。但是，當有複數之連接器202 須配置於各電路板的情況下，上述方法會使其配線複雜，造成使 用上述基板並無法圓滿處理之問題。 因此，本發明的目的在於提供一種可實現更高度的立體配線 之光纖片。 解決問題之方式 本發明提供一種光纖片，其有複數之電路部與將前述電路部 之間連繫之橋接部，其係由片狀元件所形成而前述電路部及橋接 部上鋪設光纖，藉以達成上述目的。 於本發明令，至少前述橋接部係由具有可撓性之片狀元件所 形成。 於本發明令，前述橋接部可為具有圓弧狀區域者。 此時，構成前述橋接部之圓弧狀區域的圓弧中心，係由前述 橋接部所連繫之電路部的各邊分隔開來。 此時，前述圓弧狀區域之圓弧中心與前述橋接部所連繫之前 述電路部的各邊之間的分隔距離，分別係前述圓弧狀區域之内周 側半徑的約為1/2者為較佳。 於本發明之光纖片中，亦可於前述任一電路部中裝設固定裝 置，其將其他電路部固定於不同平面内。 此時，前述固定裝置内可具有形成於任一電路部之開槽部。 於本發明之光纖片中，可使前述光纖係被具可撓性之覆蓋層 所覆蓋。 於本發明之光纖片中，可於前述電路部上設置切口而形成分 叉部，且於分叉部之端部處裝設光纖連接裝置亦可。 以下詳細說明關於本發明之作用。 依本發明之光纖片，由於複數之電路部及連繫前述電路部的 橋接部，係由片狀元件所形成，故可依二度空間的片狀態，在前 述電路部及橋接部上配置光纖、或光纖以及各種光學元件或電子 元件。依本發明之光纖片，可在配置前述光纖等之後，令前述橋 接部或電路部變形而形成立體形狀。 除了至少前述橋接部由具可撓性的片狀元件所形成，可使前 述橋接部、或橋接部與電路部自由變形而賦予立體形狀之外，當 可動部使用前述光纖片時，前述光纖片並能跟隨著可動部之移動 而變形。 於本發明中，前述橋接部具有圓弧狀區域，因此，當將一個 電路部配置在與其他電路部不同平面上時，可令前述圓弧狀區域 平順地彎曲。如此，不會使配置在前述橋接狀光纖產生過度勉 強之彎曲。 此時，構成別述橋接部之圓弧狀區域的圓弧中心，係由前述 橋接部所連繫的電路部之各邊分隔開來，因此，當—個電路部之 配置係與橋接部所連繫的其他電路部構成約略垂直時，可使前述 圓弧狀區域滑順地彎曲。特別在於前述各電路部及橋接部之邊界 處，不會產生其曲率半徑為小的彎曲部。 於上述情況下，若前述圓弧狀區域之内周側圓弧中心與前述 橋接所連繫的前述電路部的各邊之間的分隔距離，係分別為前 述圓弧區域之内周側半；^的約略1/2，當—個電路部的配置係與橋 接摘連繫之其他電路部構成約略垂直的時候，則不會於前述橋 接部處產生鬆弛而佔據多餘的空間。 1352831 於本發明之光纖片中，於前述任一電路部上裝設固定裝置， 以將其他電路部固定於不同平面内，藉以令—個電路部與^他電 路部以預定的位置關係使其固定。 在此情況下’前述固定裝置係由任—電路部上形成開槽部而 成，藉此構造，前述開槽部將電路部之間卡合。在此所謂開槽部 係形成於上述電路部内的細縫狀開槽部，或指自電路部各邊曰的角 端部向内部形成之開槽部。 於本發明的光纖片中’上述光纖由具可撓性之材料所形成之 覆蓋層所覆蓋，故能保護光纖。 於本發明之光纖片中，於上述電路部剪一切口而形成分叉 部’而於分叉部之端部裝設光纖連接裝置，藉此使前述分叉部脊 曲而能與其他基板等形成光學連接，以實現更高度之立體配線。 四、【實施方式】 以下參照圖式詳細說明依本發明的較佳實施形態。 第一實施熊檨 圖1為關於第-實施態樣之光纖片丨的平面圖^使料，將 圖1所示的光纖片1立體地組合如圖3。 光纖片1包含由電路部8與電路部c以及將電路部β與電路 部C連繫之橋接部A所形成的片狀元件2，以及騎於前述片狀元 件2上之光纖3。X，於片狀元件2的電路部B及電路部C上配置 有與上述光纖3連接的光學元件4。加上，於本實施態樣中，在上 述電路部B、C _部處配置有複數之光連接器5以作為光纖連接 裝置》 於本實施態樣所使用的片狀元件2,係由具有適當彈性且可撓 1352831 性為優的材料所形成。作為上述材料 也 例如可自氨基甲酸乙醋系 樹脂、乙稀_旨、丙稀系樹脂、環氧她旨' 亞胺系樹脂或石夕 酮系樹脂等塑膠材料中適當選擇而使用。另外，作為上述材料亦 可使用二稀類橡膠、氣丁二烯類橡膠、㈣橡膠等之橡膠材料。 由上述理由’依本實施態樣之来敏K1 俅i尤纖片1，只要施加外力則能使 其自由變形’可將電路部B與電路部^配置於不同平面上。 另外，上述光纖片！亦可制由熱可随材料所形成之片狀 讀2以形成。使用熱可塑性材料的光纖片i，藉由加熱可使其塑 性變形，以致上述各電路部立體地配置。 圖2為上述片狀το件2的平面圖。將電路部B與電路部c分 別形成為矩形平面狀。橋接部A將電路部一邊與電路部c之 一邊連繫’並由圓弧狀區域1〇與連接部n所構成。於本實施態 樣中’前述圓弧狀區域1G相當於内側半徑為R的圓環之約略1/4 部分。此圓弧狀區域1G的寬度並無特別的限制，可依據所鋪設的 光纖3之條數而設計。 於圓弧狀區域10的兩端處形成有連接部u，而此連接部u 將上述電路部B、C及橋接部A之圓弧狀區域10連接成一體。前 述連接部11具有既定長度d。如此，上述圓弧狀區域1〇的圓弧中 心〇,係由橋接部A所連繫的電路部B之邊1)離開距離d，同理， 由橋接部A所連繫的電路部c之邊c離開距離d。 如此，如圖3所示，當電路部c與以橋接部A所連繫之其他 電路部B為約略成垂直的配置時，可使圓弧狀區域1〇滑順地彎 曲。因此，不會對自電路部B經由橋接部A向電路部C所鋪設的 光纖3產生不適當的彎曲，可以降低傳輸光之彎曲損耗的產生以 1352831 及光纖斷線之危險性。 上述分隔距離d之大小係可以適當決定之。在本實施態樣中， 上述分隔距離d係前述圓弧狀區域1〇之内側半徑的約略為丨/2。 如此，上述橋接部A可在電路部B與電路部C之間滑順地彎曲， 且也不產生鬆弛。因此，可防止光纖在傳輸光時的損失或光纖之 斷線’同時也不佔據多餘的空帛，而實現立體配置的高密度化。 圖3所示之電路部C，係藉由固定裝置以相對於電路部b為垂 直的方式而固定的。於本實施態樣中，固定裝置係由形成於電路 部B的開槽部6與形成於電路部（；的插人部7所構成。上述開槽 部6係朝向和電路部B的長邊方向直交的方向而開設的細縫狀長 條孔，此長條孔之寬度為相當於上述片狀元件2之厚度者為佳。 上述插入部7係自電路部C上與橋接部連繫之邊所延續的 邊’且在處於平面狀態之下，於與電路部B相向的邊上所形成的 舌片狀部位。此插入部7之長度約略相等於上述開槽部6之長度。 又’插入部7之寬度厚於片狀元件2之厚度，能使上述插入部7 穿透上述開槽部6者為較佳。 當欲使光纖片1立體組合時，則將插入部7插入至開槽部6 而使其固定。 一般情況下，將插入部插入於開槽部以固定插入部，但為防 止插入部7自開槽部6脫離，可適當使用粘接劑或粘著帶，或使 用L字形元件或T字型元件等予以固定。另外，上述光纖片中， 即使不必形成開槽部而使用粘著劑、膠帶、L字型元件或τ字型元 件等’直接將電路部C固定於電路部Β亦可。 |二實施態樣 1352831 圖4為有關第二實施態樣之光纖片工的平面圖。如圖6所示， 圖4所示之光纖片卜係以立體方式組合而使用。 第二實施態樣之光纖片丨包含片狀元件2以及光纖3。上述片 狀元件2係由具可撓性之材料所形成的。如圖5所示上述片狀 元件2係由電路部b、電路部C1、電路部c2、電路部c3、電路部 D ’以及橋接部A卜橋接部A2、橋接部A3以及橋接部A4所形成。 於本實施態樣中，上述電路部Π、電路部C2以及電路部C3, 分別猎由橋接部A1、橋接部A2、橋接部A3與電路部B 一體形成 的，而上述電路部D則藉由橋接部A4與電路部^ 一體形成。 。上述各電路部分別以矩形狀形成，而上述各橋接部由圓弧狀 區域與連接部所形成如同第一實施態樣。 各電路部以及橋接部上鋪設光纖3。又，於各電路部上 =述光纖3連㈣光學元件4。加上，於本實施態樣中，於各電路 邛之端部處配置有複數之光連接器5。 上述電路# D中，與上述橋接部Μ所連接之邊相向的糾 有4個切口，而藉此4伽+T7 口又 如八 個切口，於電路部D上形成5條分又部8。 在各個力叉部8上延伸鋪設异總^廿、去枝 端部的光連接器5。 f並連接至配置於分又部8之前 如圖6所不’有關本實施態樣之光纖片1中，將電路部C1 電路部C2以及電路部门八2,+ 1 电峪。P C1 而固定。 刀別相對電路部B以約略垂直方式配置 ，且’如圖4所*，電路部^上形成有插人部 嗔。措由將上述插入部7穿透於電路部B上之门第二 路部C1固定於電路部B “P6,使電 電路部8中，在固定電路部C2以及電 1352831 路部C3的部位上配置光纖或光學元件等，所以無法形成上述開槽 部。因此，使用钻接劑、膠帶、L字型元件或τ字型元件等，於相 對於電路部B成約略垂絲置之狀態τ直接將電路部c2以及電路 部C3等之電路部c固定於電路部B。 如圖6所示，將電路部D相對於上述電路部π以約略垂直的 方式固定。形成於電路部D之上述分又部8，可以分別㈣而使其 朝向任忍方向。藉此，可貫現更向度之立體配線。 於本實施態樣中’以具可撓性的材料所形成之覆蓋層，自鋪 設有上述光纖3之片狀元件2的上方將此覆蓋亦可。 三實施態檨 第二貫施態樣的大部分與第二實施態樣相同，其差別僅在於 第二實施態樣中的光纖（帶狀光纖）之第一分叉部分21之構造變 更上，因此，以下僅對於此分叉構造作說明。變更前述分叉構造 的理由如下。 假設欲自4心或8心的帶狀光纖僅分又抽出丨心或2心時， 首先將帶狀光纖分離成母1心光纖，並僅只割斷既定光纖的心線。 接著，將割斷出的光纖心線與引線連接。關於自帶狀光纖僅將既 定的光纖心線割斷並分離，以使其作業簡化之專用工具已有人提 出（請參照2001年電子情報通信學會通信社會大會β_1〇_7「4心 線光纜用單心線分離工具之開發」）。 依據上述的分叉連接方法，即使可使用專用工具而使作業簡 化，但仍然需要慎重處理，因此，在施工現場進行如此的光纖心 線的分離作業，依情況需要較長的作業時間。 本實施態樣係鑑於上述之實際情況而完成的，其目的在於不 12 1352831 需要進行費時的心線分離作業而可輕易進行自帶狀光纖分叉導出 引線。 為達成上述目的，於本實施態樣中提供如下構造。 一帶狀光纖之分叉連接構造，其自包含複數條排列整齊的光 纖心線之帶狀光纖中，分叉並抽出一或複數條光纖心線，前述帶 狀光纖在分叉部位被割斷之後，於其兩割斷光纖端之間插入分叉 用光纖材而配置。 前述分叉用光纖材又包含連接用光纖心線端材，對應於使其 不分叉的前述光纖心線而設置的、分叉用光纖心線端材，對應於 使其分叉的前述光纖心線而設置的，以及片材，用以夾持並固定 上述連接用光纖心線端材與分叉用光纖心線端材。 關於前述連接用光纖心線端材，在前述片材内部排列配置 後，維持其排列狀態而將其端材的兩端自前述片材抽出。關於前 述分叉用光纖心線端材之一端，係將其與上述連接用光纖心線端 材同一列上排列配置後，維持其排列而自前述片材抽出。關於分 叉用光纖心線端材之另一端，係使其由前述連接用光纖心線端材 的排列分離而自前述片材抽出的。前述連接用光纖心線端材的兩 端分別與對應於此等各個連接用光纖心線端材，而由前述割斷光 纖端所抽出之各光纖心線相連接。前述分叉用光纖心線端材之一 端，係與對應此等分叉用光纖心線端材而自割斷光纖端所抽出的 前述光纖心線相連接。 依據這樣的構造，將帶狀光纖於適當部位予以割斷後，在其 割斷纖端將分叉用光纖材插入並連接，即能分叉導出光纖心線。 13 另外，預先準備對應於所欲分又連接之帶狀光纖的規格之分 用光義材將此▼到分又施工的現場，並使其連接於帶狀光纖 的割斷纖端之間，以導出光纖之分叉端。 此種情況下’町構造駿佳。亦即，前述分叉用光纖材更 包=被前述片材所夾持的虛設心線端材。將此虛設心線端材配置 於則述分又用⑽心線端材之—端的延長線上，使其與連接用光 纖心線㈣之排列同-排上排列後，維持其排列狀態而自片材中 出七述虛°又〜線立而材之導出端，與對應於前述分叉用光纖心 、泉而材之^且自另—端的割斷光纖端所抽出之前述光纖心線相 連接。 依據上述之構造，帶狀光纖之兩個割斷光纖端、分叉用光纖 材端材之兩端部’以及虛設心'線端材之間的連接處理，係與帶狀 光纖之間的連接以相同條數進行連接處理即可，故能使用一般連 接工具。 .此時，前述分又用光纖心線端材之一端 '前述連接用光纖心 線立而材、以及前述虛設心線端材之間，係以與前述光纖心線之排 列間卩网相同的間隔配置者為佳。如此，能使用一般所使用的連接 工具’且能輕易又精確地使用，使其分又連接精度提高。 以下參照圖8以詳細說明本實施態樣。 圖8表示本實施態樣之分叉構造的示意圖。 於帶狀光纖31上，將4條光纖心線32以既定間距平行排列 之後’使用樹脂材38以帶狀將之封止，將此帶狀光纖31在適當 部位割斷’並在其兩個割斷纖端31a、31b之間插入分叉用光纖材 33。 14 1352831 分又用光纖材33，係將連接用光纖心線端材34、分叉用光纖 心線端材35以及虛設心線端材36平行排列而成。基本上，此等 材34、35、36 ’係以與帶狀光纖31的心線配置之間距相同的間 距配置。加上，此等端材34、35、36，係被夾住保持於一體積層 的2張樹脂製片材37之間。 . 在此，圖8中’將光纖心線32、連接用光纖心線端材34、分 · 又用光纖心線端材35、虛設心線端材36描述成暴露在外面以便理 解’但應當了解的是，實際上此等端材係被埋設在樹脂材38以及 片材37中。 鲁 連接用光纖心線端材34與不分叉的光纖心線32係相對應配 置的。而分又用光纖心線端材35與使其分叉的光纖心線32係相 對應配置的。將連接用光纖心線34於片材37内部排列之後，維 持其排列狀態將其端材的兩端自片材37抽出。將分叉用光纖新線 端材35之一端35a配置於連接用光纖心線端材34同一排上後， 維持其排列狀態自片材37抽出之。而分叉用光纖心線端材35之 另一端35b，係由連接用光纖心線端材34之排列分離而自片材37 中抽出。 孀 虛設心線端材36 ,係在分叉用光纖心線端材35之一端35a 的延長線上，以與連接用光纖心線端材34同列之方式配置。虛設 心線端材36維持其排列狀態而從片材37被抽出。 如此，分又用光纖心線端材35之一端35a以及連接用光纖心 線端材34，係與帶狀光纖31中之光纖心線32的排列順序以同一 排列同一間距地自分叉用光纖材33的一端33a抽出。同理，虛設 心線端材36與連接用光纖心線端材34，係與帶狀光纖31中的光 15 1352831 纖心線32的排序以同一排列同一間距地自分叉用光纖材33的另 一端33b抽出。在此，在圖8中分叉用光纖材33的一端33a與另 一端33b，係介於分又用光纖材33互相相向的端部，但並未特別 限於相向配置的端部。亦即，一端33a與另一端33b，只要係為沿 著連接用光纖心線端材34的排列方向之分叉用光纖材33之兩端 即可。 連接用光纖心線端材34之兩端，分別與自帶狀光纖31的割 斷纖端31a、31b所導出的光纖心線32相連接。而各連接用光纖 心線端材34，係分別與其所對應的光纖心線32，即是與帶狀光纖 31中位於相同排列順序之光纖心線32連接。 分叉用光纖心線端材35的一端35a，與其所對應的光纖心線 32,亦即帶狀光纖31中位於相同排列順序的光纖心線32相連接。 虛設心線端材36與其所對應的光纖心線32,即自另一端割斷 纖端31b所導出，且於帶狀光纖31中位於相同排列順序之光纖心 線3 2相連接。 如此，由於連接用光纖心線端材34、分叉用光纖心線35以及 虛設心線端材36，皆連接至以相同間距且相同排列順序配置之光 纖心線32，因此，當進行連接作業時，可使用連接工程中廣泛被 使用之連接工具（未圖示）而進行連接。將虛設心線端材36設置 於分叉用光纖材33處，以使連接工程中對帶狀光纖31所使用的 連接工具（未圖示）之使用更容易。 根據如上述的分叉連接構造，將分叉用光纖心線端材35之一 端35a連接至光纖心線32之後，使另一端35b由連接用光纖心線 端材34之排列分開地自片材37導出。因此，連接於分叉用光纖 16 1352831 心線端材35之光纖心線32，係介以分叉用光纖心線端材35由其 他光纖心線32分叉而從帶狀光纖31抽出之。 第四實施熊楛 圖9 (a)、（b)表示第四實施態樣中的分叉構造的示意圖，係 將圖4之第二分叉部分22加以變更。 在本實施態樣中，於分叉用光纖材33設置2條連接用光纖心 線端材34、2條分叉用光纖心線端材35以及2條虛設心線端材 36。分叉用光纖心線端材35以及虛設心線端材36之構造，基本 上係與第二貫施悲樣為相同。 此時，如圖9 ( b)所示，將分叉用光纖材33之另一端33b 處的連接用光纖心線端材34與虛設心線端材36之間的排序任意 設定，藉以任意設定於線導出側的信號系統之排列。 第五實施熊樣 於第五貫施態樣中’第三實施態樣所示的分叉用光纖材以及 分又構造中的前述分叉用光纖材更包含分支遽波器，用以對分叉 用光纖心線端材施以分支濾波，而將前述分錢波ϋ夾持於前述 片材内而自刖述片材中抽出藉由分支渡波器施以分支遽波的多 數分叉用L線端材。因此，能輕易自複數條分叉用光纖心線 端材中分叉1條光纖心線並將此括出。 圖1〇一表示依本實施態樣的分又構造之示意圖。 於本實in、樣中’將分支濾波器如插入在分叉用光纖心線端 材35的一端35a與另—嫂Qcu % dbb之間，且於分支濾波器39處連接 複數條分叉用光纖心線踹妯π以 %而材35的另一端35b，並將此引出。 17 1352831 第六實施熊樣 圖11表示第六實施態樣中的分叉構造之示意圖。1352831 IX. Description of the Invention: 1. Field of the Invention The present invention relates to an optical fiber sheet having a plurality of substrates and arranging the substrates in a stereoscopic manner. 2. [Prior Art] In recent years, in a wide variety of electro-optical devices, a plurality of circuits have been densely packed to achieve high density and space saving of the machine. In order to realize such a dense connection between a plurality of circuits, various techniques for combining a flexible optical fiber and an optical connector have been developed (refer to Japanese Laid-Open Patent Publication No. 2574611). As shown in Fig. 7, the optical connecting device disclosed in Japanese Laid-Open Patent Publication No. 2574411 includes a main body portion 101, a plurality of fins 102 extending from the main body portion 101, and a substrate 100 formed of a flexible sheet. A plurality of optical fibers are disposed on the substrate 100. At the end of the aforementioned tab 102, there is provided a fiber optic terminal mechanism for terminating the optical fiber in a connectable manner. The substrate 100 described above enables optical connection between the printed circuit boards 201 included in the circuit package 200. The end portion of the end portion of the tab 102 of the substrate 100 is inserted into the optical connector 202 of the circuit package 200. At this time, in order to match the end portions of the respective tabs 102 with the direction of the optical connector 202, the respective tabs 102 are twisted by about 90 degrees with respect to the direction of the substrate 100. According to the invention described in Japanese Patent Laid-Open No. 2574611, the optical wiring of the above-described three-dimensionally arranged circuit board has been realized. 3. SUMMARY OF THE INVENTION PROBLEM TO BE SOLVED BY THE INVENTION In the invention described in Japanese Laid-Open Patent Publication No. 2574411, when the optical connectors 202 disposed on the respective boards are individually single, the tabs are used. The method of connecting the first board of 1352831 is effective. However, in the case where a plurality of connectors 202 are to be disposed on each circuit board, the above method complicates the wiring, resulting in a problem that the above substrate cannot be satisfactorily processed. Accordingly, it is an object of the present invention to provide an optical fiber sheet which can realize a higher degree of three-dimensional wiring. Means for Solving the Problems The present invention provides an optical fiber sheet having a plurality of circuit portions and a bridge portion connecting the circuit portions, which are formed by chip elements, and optical fibers are laid on the circuit portions and the bridge portions. Achieve the above objectives. In the present invention, at least the bridging portion is formed of a flexible sheet member. In the invention, the bridge portion may be a circular arc-shaped region. At this time, the arc center of the arc-shaped region constituting the bridge portion is partitioned by the respective sides of the circuit portion to which the bridge portion is connected. In this case, the separation distance between the arc center of the arc-shaped region and each side of the circuit portion connected to the bridge portion is about 1/2 of the inner circumferential side radius of the arc-shaped region. It is better. In the optical fiber sheet of the present invention, a fixing device may be provided in any of the above circuit portions, which fixes the other circuit portions in different planes. In this case, the fixing device may have a grooved portion formed in any of the circuit portions. In the optical fiber sheet of the present invention, the optical fiber can be covered with a flexible cover layer. In the optical fiber sheet of the present invention, a slit may be formed in the circuit portion to form a branch portion, and an optical fiber connecting device may be provided at an end portion of the branch portion. The effect of the present invention will be described in detail below. According to the optical fiber sheet of the present invention, since the plurality of circuit portions and the bridge portion connecting the circuit portions are formed by the chip components, the optical fibers can be disposed on the circuit portion and the bridge portion in the state of the second space. , or fiber optics and various optical components or electronic components. According to the optical fiber sheet of the present invention, after the optical fiber or the like is disposed, the bridge portion or the circuit portion can be deformed to form a three-dimensional shape. The optical fiber piece may be used when the movable portion uses the optical fiber sheet, except that at least the bridge portion is formed of a flexible sheet member, and the bridge portion or the bridge portion and the circuit portion are freely deformed to give a three-dimensional shape. And can be deformed following the movement of the movable portion. In the present invention, since the bridge portion has an arc-shaped region, when the one circuit portion is disposed on a plane different from the other circuit portions, the arcuate region can be smoothly curved. In this way, the excessively strong bending of the bridge-like optical fiber is not caused. In this case, the arc center of the arc-shaped region constituting the bridge portion is separated by the respective sides of the circuit portion connected to the bridge portion. Therefore, the arrangement and the bridge portion of the circuit portion are provided. When the other circuit portions to be connected are formed to be approximately vertical, the arcuate region can be smoothly curved. In particular, at the boundary between each of the circuit portions and the bridge portion, a curved portion having a small radius of curvature does not occur. In the above case, the separation distance between the center of the inner circumference side arc of the arcuate region and the side of the circuit portion connected to the bridge is the inner circumference side of the arc area; Approximately 1/2 of ^, when the arrangement of the circuit portions is approximately perpendicular to the other circuit portions of the bridge connection system, no loose space is generated at the bridge portion to occupy excess space. 1352831 In the optical fiber chip of the present invention, a fixing device is disposed on any one of the circuit portions to fix the other circuit portions in different planes, so that the circuit portion and the circuit portion are in a predetermined positional relationship. fixed. In this case, the fixing means is formed by forming a grooved portion in any of the circuit portions, and the grooved portion engages the circuit portions. Here, the grooved portion is a slit-like grooved portion formed in the circuit portion, or a grooved portion formed inward from the corner end portion of each side of the circuit portion. In the optical fiber sheet of the present invention, the optical fiber is covered by a cover layer formed of a flexible material, so that the optical fiber can be protected. In the optical fiber sheet of the present invention, the branch portion is cut at the circuit portion to form a branching portion', and an optical fiber connecting device is attached to the end portion of the branching portion, whereby the branching portion is ridged to be compatible with other substrates. An optical connection is formed to achieve a higher degree of three-dimensional wiring. Fourth Embodiment [Embodiment] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings. First Embodiment Bear Fig. 1 is a plan view of a fiber sheet of the first embodiment, and the fiber sheets 1 shown in Fig. 1 are stereoscopically combined as shown in Fig. 3. The optical fiber sheet 1 includes a chip component 2 formed of a circuit portion 8 and a circuit portion c, and a bridge portion A connecting the circuit portion β and the circuit portion C, and an optical fiber 3 riding on the chip component 2. X, an optical element 4 connected to the optical fiber 3 is disposed on the circuit portion B and the circuit portion C of the chip component 2. In the present embodiment, a plurality of optical connectors 5 are disposed in the circuit portions B and C_ as the optical fiber connecting device. The chip component 2 used in the present embodiment has It is formed of a material that is elastic and flexible and has excellent properties. The material may be appropriately selected and used, for example, from a plastic material such as a urethane-based resin, an ethylene-based resin, an acrylic resin, or an epoxy-based imine resin or a linaloic resin. Further, as the above material, a rubber material such as a dilute rubber, a gas butadiene rubber or (4) rubber may be used. According to the above-described reason, the K1 俅i special fiber sheet 1 can be freely deformed by applying an external force. The circuit portion B and the circuit portion can be disposed on different planes. In addition, the above fiber sheet! It can also be formed by a sheet-like reading 2 formed by heat with a material. The optical fiber sheet i using the thermoplastic material is plastically deformed by heating, so that the respective circuit portions are three-dimensionally arranged. Fig. 2 is a plan view of the sheet-like member 2 described above. The circuit portion B and the circuit portion c are formed in a rectangular planar shape, respectively. The bridge portion A is formed by connecting the circuit portion to one side of the circuit portion c and is constituted by the arc-shaped region 1A and the connection portion n. In the present embodiment, the arc-shaped region 1G corresponds to approximately 1/4 of the ring having the inner radius R. The width of the arc-shaped region 1G is not particularly limited and may be designed depending on the number of the optical fibers 3 to be laid. A connecting portion u is formed at both ends of the arc-shaped region 10, and the connecting portion u integrally connects the circuit portions B and C and the arc-shaped region 10 of the bridge portion A. The connecting portion 11 has a predetermined length d. In this manner, the arc center 〇 of the arcuate region 1〇 is separated from the side 1) of the circuit portion B connected by the bridge portion A by the distance d, and the circuit portion c connected by the bridge portion A is similarly Edge c leaves distance d. Thus, as shown in Fig. 3, when the circuit portion c is disposed approximately perpendicular to the other circuit portion B connected to the bridge portion A, the arcuate region 1〇 can be smoothly bent. Therefore, the optical fiber 3 laid from the circuit portion B via the bridge portion A to the circuit portion C is not improperly bent, and the risk of the bending loss of the transmitted light being broken by 1352831 and the optical fiber can be reduced. The size of the above separation distance d can be appropriately determined. In the present embodiment, the separation distance d is approximately 丨/2 of the inner radius of the arcuate region 1〇. In this manner, the bridge portion A can be smoothly bent between the circuit portion B and the circuit portion C without causing slack. Therefore, it is possible to prevent the loss of the optical fiber when the light is transmitted or the disconnection of the optical fiber while not occupying the excess space, thereby realizing the high density of the three-dimensional arrangement. The circuit portion C shown in Fig. 3 is fixed by means of a fixing device so as to be perpendicular to the circuit portion b. In the present embodiment, the fixing device is constituted by the slot portion 6 formed in the circuit portion B and the insertion portion 7 formed in the circuit portion (the slot portion 6 is oriented toward the long side of the circuit portion B). Preferably, the slit-shaped elongated hole is formed in a direction perpendicular to the direction, and the width of the elongated hole is preferably equal to the thickness of the sheet-like member 2. The insertion portion 7 is connected to the bridge portion from the circuit portion C. The edge continuation of the edge 'and the planar portion is formed on the edge of the tongue portion formed on the side opposite to the circuit portion B. The length of the insertion portion 7 is approximately equal to the length of the grooved portion 6. The width of the insertion portion 7 is thicker than the thickness of the sheet member 2, and it is preferable that the insertion portion 7 can penetrate the groove portion 6. When the optical fiber sheet 1 is to be three-dimensionally combined, the insertion portion 7 is inserted into the opening portion. The groove portion 6 is fixed. In general, the insertion portion is inserted into the groove portion to fix the insertion portion. However, in order to prevent the insertion portion 7 from being detached from the groove portion 6, an adhesive or an adhesive tape can be suitably used, or It is fixed by an L-shaped element or a T-shaped element, etc. Further, even in the above-mentioned optical fiber sheet, It is also necessary to form a grooved portion and use an adhesive, a tape, an L-shaped element, a τ-shaped element, or the like to directly fix the circuit portion C to the circuit portion. | Two Embodiments 1352831 FIG. 4 is a second implementation. A plan view of a fiber optic sheet of the aspect. As shown in Fig. 6, the fiber sheets shown in Fig. 4 are used in a stereoscopic manner. The fiber sheet of the second embodiment comprises a sheet member 2 and an optical fiber 3. The chip element 2 is formed of a flexible material. As shown in Fig. 5, the chip element 2 is composed of a circuit portion b, a circuit portion C1, a circuit portion c2, a circuit portion c3, a circuit portion D', and a bridge. The portion A bridge portion A2, the bridge portion A3, and the bridge portion A4 are formed. In the embodiment, the circuit portion Π, the circuit portion C2, and the circuit portion C3 are respectively hunted by the bridge portion A1, the bridge portion A2, and the bridge portion. A3 is formed integrally with the circuit portion B, and the circuit portion D is integrally formed with the circuit portion by the bridge portion A4. Each of the circuit portions is formed in a rectangular shape, and each of the bridge portions is connected by an arc-shaped region. The part is formed like the first embodiment. Each circuit part and bridge The optical fiber 3 is placed on the upper portion, and the optical element 4 is connected to the optical circuit 3 in each circuit portion. In the present embodiment, a plurality of optical connectors 5 are disposed at the end portions of the respective circuit turns. In the above circuit # D, four slits are formed in the direction opposite to the side to which the bridge portion 连接 is connected, and the four galaxes + T7 ports are, for example, eight slits, and five divided portions 8 are formed on the circuit portion D. An optical connector 5 is disposed on each of the force forks 8 and is disposed at the end of the branch. The f is connected to the optical fiber 1 of the present embodiment as shown in FIG. In the circuit unit C1, the circuit unit C2 and the circuit unit 八2, +1 are electrically connected to P C1. The tool is arranged in an approximately vertical manner with respect to the circuit portion B, and is formed as shown in Fig. 4 There are people in the department. The gate second path portion C1 that penetrates the insertion portion 7 through the circuit portion B is fixed to the circuit portion B "P6, and the electric circuit portion 8 is on the portion of the fixed circuit portion C2 and the electric 1352831 road portion C3. Since the optical fiber, the optical element, and the like are disposed, the above-described grooved portion cannot be formed. Therefore, using a drilling agent, a tape, an L-shaped element, or a τ-shaped element, the state is directly entangled with respect to the circuit portion B. The circuit portion c such as the circuit portion c2 and the circuit portion C3 is fixed to the circuit portion B. As shown in Fig. 6, the circuit portion D is fixed to the circuit portion π in a substantially vertical manner. The other part 8 can be oriented to the direction of the forbearance, respectively, thereby allowing a more dimensional three-dimensional wiring. In the present embodiment, the cover layer formed of a flexible material is self-laying. The upper portion of the chip element 2 having the above-mentioned optical fiber 3 may be covered. The third embodiment is the same as the second embodiment, and the difference is only in the optical fiber in the second embodiment. The structural change of the first branching portion 21 of the (strip fiber) Therefore, only the bifurcation structure will be described below. The reason for changing the above-described bifurcation structure is as follows. Suppose that the ribbon fiber to be extracted from the four-core or eight-core fiber is separated from the center or the two cores, and the ribbon fiber is first separated. It is a mother-in-one fiber, and only cuts the core wire of a given fiber. Next, the cut fiber core wire is connected to the lead wire. With regard to the self-contained fiber, only the predetermined fiber core wire is cut and separated to simplify the operation. Special tools have been proposed (please refer to the 2001 Electronic Society of Information and Communication Society Communication Society Conference β_1〇_7 "Development of a single-core separation tool for 4-core cable"). According to the above-described bifurcation connection method, even if a dedicated tool can be used to simplify the operation, careful handling is required. Therefore, such a separation of the optical fiber cores at the construction site requires a long working time depending on the situation. This embodiment has been made in view of the above-described actual circumstances, and its purpose is to easily carry out the self-contained fiber branching lead-out lead without requiring a time-consuming core separation operation. In order to achieve the above object, the following configuration is provided in the present embodiment. A bifurcated connection structure of a ribbon-shaped optical fiber, which branches and extracts one or more optical fiber cores from a strip-shaped optical fiber including a plurality of aligned optical fiber cores, and the ribbon optical fiber is cut at a bifurcation portion The bifurcated optical fiber material is inserted between the two cut fiber ends. The bifurcated optical fiber material further includes a connecting optical fiber core end material, and the bifurcated optical fiber core end material provided corresponding to the undivided optical fiber core line corresponds to the optical fiber bifurcated And a sheet for holding and fixing the connecting optical fiber core end material and the bifurcated optical fiber core end material. The connecting fiber-optic core end materials are arranged in the inside of the sheet, and are maintained in an aligned state, and both ends of the end members are taken out from the sheet. One end of the optical fiber core end material for the bifurcation is arranged in the same row as the above-mentioned optical fiber core end material for connection, and the arrangement is maintained and extracted from the sheet. The other end of the optical fiber core end material for the bifurcation is taken out from the sheet by the arrangement and separation of the connecting fiber core end materials. Both ends of the connecting fiber-optic core end material are respectively connected to the respective fiber-optic core ends of the connecting fibers, and the respective fiber cores drawn by the cut fiber ends are connected. One end of the bifurcated optical fiber core end is connected to the optical fiber core drawn from the cut fiber end corresponding to the bifurcated optical fiber core end material. According to such a configuration, after the ribbon optical fiber is cut at an appropriate portion, the optical fiber material for the bifurcation is inserted and connected at the cut fiber end, that is, the optical fiber core can be branched and exported. 13 In addition, pre-prepare the photo-materials corresponding to the specifications of the ribbon fiber to be connected and connected to the site of construction and connect it to the cut fiber end of the ribbon fiber to be derived. The forked end of the fiber. In this case, the town structure Jun Jia. That is, the above-mentioned optical fiber for furnishing is further included as a dummy core end material sandwiched by the above-mentioned sheet. Disposing the dummy core wire end material on the extension line of the end of the (10) core wire end material, and arranging it in the same row as the arrangement fiber core wire (4), and maintaining the arrangement state thereof. The lead end of the material is connected to the optical fiber core line drawn from the cut fiber end of the optical fiber core and the spring material corresponding to the bifurcation. According to the above configuration, the connection between the two cut fiber ends of the ribbon fiber, the end portions of the fiber ends of the bifurcated fiber ends, and the end portions of the dummy core wires is a connection with the ribbon fibers. The same number of links can be connected, so the general connection tool can be used. At this time, the above-mentioned part is the same as the one end of the optical fiber core end material, the connecting fiber core wire, and the dummy core wire end, which are the same as the meshing line between the optical fiber core wires. The interval configurator is better. In this way, the connection tool that is generally used can be used and can be easily and accurately used to improve the accuracy of the connection and connection. The present embodiment will be described in detail below with reference to FIG. Fig. 8 is a view showing the bifurcation structure of the embodiment. On the ribbon fiber 31, after the four fiber core wires 32 are arranged in parallel at a predetermined pitch, 'the resin material 38 is used to seal it in a strip shape, the ribbon fiber 31 is cut at an appropriate portion' and cut in two portions. A bifurcated optical fiber material 33 is inserted between the fiber ends 31a and 31b. 14 1352831 The optical fiber material 33 is further used, and the connecting optical fiber core end material 34, the bifurcated optical fiber core end material 35, and the dummy core wire end material 36 are arranged in parallel. Basically, the materials 34, 35, 36' are arranged at the same distance from the core arrangement of the ribbon fiber 31. Further, these end materials 34, 35, 36 are sandwiched between two sheets of resin sheets 37 held in a volume layer. Here, in FIG. 8, 'the optical fiber core 32, the connecting optical fiber core end material 34, the divided optical fiber core end material 35, and the dummy core wire end material 36 are described as being exposed to the outside for understanding 'but should It is understood that these end materials are actually embedded in the resin material 38 and the sheet material 37. The connection fiber optic core end 34 is configured in correspondence with the undivided fiber optic core 32. The optical fiber core end material 35 is further disposed corresponding to the optical fiber core 32 which is bifurcated. After the connecting optical fiber cores 34 are arranged inside the sheet 37, their alignment is maintained, and both ends of the end materials are taken out from the sheet 37. After the one end 35a of the branching optical fiber new wire end material 35 is placed on the same row of the connecting optical fiber core wire end material 34, the alignment state is maintained from the sheet material 37. The other end 35b of the bifurcated optical fiber core end member 35 is taken out from the sheet 37 by the arrangement of the connecting optical fiber core ends 34.虚 The dummy core end material 36 is disposed on the extension line of one end 35a of the bifurcated optical fiber core end material 35 so as to be aligned with the connecting optical fiber core end material 34. The dummy core end material 36 is maintained in its aligned state and is withdrawn from the sheet 37. In this way, the optical fiber core wire 35 one end 35a and the connecting fiber core wire end 34 are separated from the optical fiber core 32 in the strip fiber 31 by the same arrangement at the same pitch. One end 33a of 33 is withdrawn. Similarly, the dummy core wire material 36 and the connecting fiber core wire end material 34 are arranged in the same arrangement as the light fiber 15 1352831 core fiber line 32 in the strip fiber 31. One end 33b is withdrawn. Here, in Fig. 8, the one end 33a and the other end 33b of the branching optical fiber material 33 are at the ends which are opposed to each other by the optical fiber material 33, but are not particularly limited to the end portions which are disposed to face each other. That is, the one end 33a and the other end 33b may be both ends of the bifurcated optical fiber material 33 along the direction in which the connecting optical fiber core end members 34 are arranged. Both ends of the connecting fiber core wire end member 34 are respectively connected to the fiber core wires 32 led from the cut fiber ends 31a and 31b of the self-contained fiber 31. Each of the connecting fiber core ends 34 is connected to the corresponding fiber core 32, that is, to the fiber core 32 of the strip fiber 31 in the same arrangement order. One end 35a of the bifurcated optical fiber core end material 35 is connected to the corresponding optical fiber core 32, that is, the optical fiber core 32 of the strip optical fiber 31 in the same arrangement order. The dummy core end material 36 and its corresponding fiber core wire 32 are derived from the other end cut fiber end 31b, and are connected to the fiber optic core 32 in the same arrangement order in the ribbon fiber 31. Thus, since the connecting optical fiber core end material 34, the bifurcated optical fiber core 35, and the dummy core end material 36 are connected to the optical fiber cores 32 arranged at the same pitch and in the same arrangement order, when the connection operation is performed In this case, it is possible to connect using a connection tool (not shown) that is widely used in connection engineering. The dummy core end material 36 is placed at the branching optical fiber material 33 to facilitate the use of a connecting tool (not shown) used for the ribbon optical fiber 31 in the connection process. According to the bifurcated connection configuration as described above, after the one end 35a of the bifurcated optical fiber core end member 35 is connected to the optical fiber core 32, the other end 35b is separated from the sheet by the arrangement of the connecting optical fiber core end members 34. 37 export. Therefore, the optical fiber core 32 connected to the bifurcated optical fiber 16 1352831 core wire end 35 is extracted from the ribbon optical fiber 31 by bifurcation of the other optical fiber core wire 32. Fourth Embodiment Bear Fig. 9 (a) and (b) are schematic views showing the branching structure in the fourth embodiment, and the second branching portion 22 of Fig. 4 is changed. In the present embodiment, two optical fiber core ends 34 for connection, two optical fiber core ends 35 for bifurcation, and two dummy core ends 36 are provided in the optical fiber 33 for furcation. The configuration of the bifurcated fiber optic core end material 35 and the dummy core wire end member 36 is substantially the same as the second embodiment. At this time, as shown in FIG. 9(b), the order between the connecting optical fiber core end material 34 at the other end 33b of the bifurcated optical fiber material 33 and the dummy core wire end material 36 is arbitrarily set, thereby being arbitrarily set. The arrangement of the signal systems on the line derivation side. The fifth embodiment of the bear sample in the fifth embodiment of the bifurcation optical fiber material shown in the third embodiment, and the foregoing bifurcated optical fiber material in the sub-structure further includes a branch chopper for halving The fork uses a fiber-optic core end material to perform branching filtering, and the aforementioned centromere is clamped in the sheet, and a plurality of forks L which are branched by the branching waver by the branching wave are extracted from the sheet. Wire end material. Therefore, it is possible to easily diverge one fiber core wire from the fiber-optic core end material of a plurality of bifurcations and enclose it. Fig. 1 is a schematic view showing the sub-structure according to the embodiment. In the present example, the branch filter is inserted between one end 35a of the bifurcated fiber optic core end 35 and the other 嫂Qcu % dbb, and is connected to the branch filter 39 for a plurality of bifurcations. The fiber core 踹妯 is π in % and the other end 35b of the material 35 is taken out. 17 1352831 Sixth embodiment bear figure Fig. 11 is a schematic view showing the bifurcation structure in the sixth embodiment.
於本實施態樣中，於分叉用光纖材33處設有與帶狀光纖31 具有同數目的心線數之4條連接用光纖心線端材34。此連接用光 纖心線端材34 ’係與光纖心線32依相同排序及相同間距排列。在 · 各連接用光纖心線端材34之中途部插入分支濾波器40。在各分支 濾波器40處連接分又用光纖心線端材41。將此分叉用光纖心線端 材41由連接用光纖心線端材34之排列分離並將此抽出後，再由 分又用光纖材33導出。 讀I 依本實施態樣，藉由對各個連接用光纖心線端材34設置分支 濾波器40，將各連接用光纖心線端材34分別予以分支濾波並抽 出分叉用光纖心線端材41。因此，於本實施態樣中，連接用光纖 - 心線端材34之非分叉端，係相當於分又用光纖心線端材之一端， 而分叉用光纖心線端材41本身係相當於分叉用光纖心線端材之另 一端。 由上述說明可見，依第三至第六實施態樣，^須費時的心線 分離作業’而只要進行-般光纖辆處理則能輕胃地進行分又導 出的作業。另外，可輕易地進行複數條的分叉導出作業。又可 預先準備分叉用光纖材並將此攜帶到施工現場，只要將此連接至 帶狀光纖的割斷部位，則能在現場輕易進行既定條數的分又導出 處理’其中’前述分又用域材包含對應於所欲分又連接的帶狀 光纖之規格的連接用光纖心線端材與具有既定條數之分又用光纖 心線。 【發明的效果】 18 1352831 以下說明有關本發明的實施態樣之效果。 前述各實施態樣的錢片具有可撓性。藉此，能使前述光纖 片的橋接部彎“將前述複數之電路部立體地配置。於本實施態 樣中’又因將各電路部連繫的橋接部具有如上述構造可形成滑 順的彎曲部，故不產生光纖之f曲損耗。另外，因為將複數之電 路部以立體方式配置，故能實現更高度的光線配置。具體而言， 將圖1所示的光纖片立體地組合的狀態下，配置於各電路部二光 連接器相對於電路部B皆位於同—側。因此，此等複數之光連接 益皆可在電路部B的—端·成結線，以致實現光纖配線之高密 度化。 依上述各貫施態樣中的光纖片，係使用由具有可挽性的 材料所形成之片狀元件所構成’由於上述光纖片能追隨其移動而 &形’故亦適用於如印表機列印頭等伴隨動作的機構。 有關於第二實施態樣之光纖片1，由於在上述電路部D處形成 有分叉部8’令分又部8朝所期望方向彎曲或使其扭轉，藉以使光 纖3朝各個方向而形成結線以實現更高度的光纖之立體配線。 〜之知以上說明實施本發明的光纖片，可以實現高度立體 配線。 五、【圖式簡單說明】 圖1為有關第一實施態樣之光纖片的平面圖。 圖2為有關用於第一實施態樣之光纖片的片狀元件的平面圖。 圖3顯示將有關第一實施態樣的光纖片以立體方式組合的概 略圖。 圖4顯示有關第二實施態樣之光纖片的平面圖。 19 1352831 圖5為有關用於第二實施態樣之光纖片的片狀元件的平面圖 田圖6顯示將有關第二實施態樣的光纖片以立體方式組合的概 圖7為过明使用習知光纖片之立體配線的立體圖。 的連接 3 8說明於第三實施態樣中，帶狀光纖的分叉連接構生 處理步驟。 ^ 圖9顯示有關第四實施態樣中分叉部的概略圖。 圖10顯示有關第五實施態樣中分叉部的概略圖。 …具示有關第六貫施悲樣中分又部的概略圖。 【主要元件符號說明】 I 光纖片 2片狀元件 3 光纖 4 光學元件 5 光連接器 6 開槽部 7 插入部 8 分叉部 10 圓弧狀區域 II 連接部 21 第1分叉部分 22 第2分叉部分 31 帶狀光纖 31a、31b 割斷纖端 20 1352831 32 光纖心線 33 分叉用光纖材 34 連接用光纖心線端材 35 分叉用光纖心線端材 36 虛設心線端材 37片材 38樹脂材 39、40 分支濾波器 41 分叉用光纖心線端材 A、 Al、A2、A3、A4 橋接部 B、 C、D、Cl、C2、C3 電路部 100基板 101本體部 102凸片 200電路封裝 201印刷電路板 202光連接器In the present embodiment, four optical fiber core ends 34 for connection having the same number of core lines as the strip fiber 31 are provided in the optical fiber 33 for branching. The connecting fiber core end material 34' is arranged in the same order and at the same pitch as the fiber core line 32. The branch filter 40 is inserted in the middle of each of the connection fiber core end materials 34. The fiber-optic core end material 41 is connected to each branch filter 40. The branching optical fiber core end material 41 is separated from the arrangement of the connecting optical fiber core wire ends 34 and extracted, and then exported by the optical fiber material 33. According to the embodiment, the branching filter 40 is provided for each of the connecting optical fiber core ends 34, and each connecting optical fiber core end material 34 is branched and filtered, and the bifurcated optical fiber core end material is extracted. 41. Therefore, in the present embodiment, the non-forked end of the connecting optical fiber-core end material 34 is equivalent to one end of the fiber-optic core end material, and the bifurcated optical fiber core end material 41 is itself It is equivalent to the other end of the fiber optic core end of the bifurcation. As apparent from the above description, according to the third to sixth embodiments, the time-consuming heart-line separation operation is required, and the operation can be performed gently and indiscriminately by performing the fiber-optic treatment. In addition, a plurality of branching and exporting operations can be easily performed. In addition, the fiber for bifurcation can be prepared in advance and carried to the construction site. As long as this is connected to the cut portion of the ribbon fiber, the predetermined number of points can be easily and derivatized on the spot. The domain material includes a connecting optical fiber core end material corresponding to the specification of the ribbon optical fiber to be connected and connected, and a predetermined number of fibers and an optical fiber core. [Effect of the Invention] 18 1352831 The effects of the embodiment of the present invention will be described below. The sheets of the foregoing embodiments have flexibility. Thereby, the bridging portion of the optical fiber sheet can be bent "the plurality of circuit portions are arranged three-dimensionally. In the present embodiment, the bridge portion connecting the respective circuit portions can have a smooth structure as described above. Since the bent portion does not cause f-loss loss of the optical fiber. Further, since the plurality of circuit portions are arranged in a three-dimensional manner, a higher light ray arrangement can be realized. Specifically, the optical fiber sheets shown in Fig. 1 are three-dimensionally combined. In the state, the optical connectors disposed in the respective circuit portions are located on the same side with respect to the circuit portion B. Therefore, the plurality of optical connection benefits can be formed at the end of the circuit portion B, so that the optical fiber wiring is realized. High-density. According to the above-mentioned optical fiber sheets, the fiber-optic sheet is formed by using a sheet-like element formed of a material capable of being pluckable. 'Because the above-mentioned optical fiber sheet can follow its movement, the shape is also applicable. In the optical fiber sheet 1 of the second embodiment, the branching portion 8' is formed at the circuit portion D so that the branch portion 8 is bent in a desired direction. Or reverse it, borrow The optical fiber 3 is formed into a line in various directions to realize a higher-dimensional three-dimensional wiring of the optical fiber. The above description of the optical fiber sheet embodying the present invention can realize highly stereoscopic wiring. V. [Simple description of the drawing] FIG. Figure 2 is a plan view of a sheet member for the fiber sheet of the first embodiment. Fig. 3 shows a combination of the fiber sheets of the first embodiment in a stereoscopic manner. Figure 4 shows a plan view of a fiber optic sheet relating to a second embodiment. 19 1352831 Figure 5 is a plan view of a chip component for a fiber optic sheet of a second embodiment. Figure 6 shows a second embodiment. FIG. 7 is a perspective view of a three-dimensional wiring of a conventional optical fiber sheet. The connection 3 8 illustrates the bifurcation connection processing step of the ribbon optical fiber in the third embodiment. Fig. 9 is a schematic view showing a branching portion in the fourth embodiment. Fig. 10 is a schematic view showing a branching portion in the fifth embodiment. of BRIEF DESCRIPTION OF THE DRAWINGS [Major component symbol description] I Fiber plate 2 chip element 3 Fiber 4 Optical element 5 Optical connector 6 Slotted portion 7 Insertion portion 8 Fork portion 10 Arc-shaped region II Connection portion 21 First branch portion 22 2nd branching portion 31 ribbon fiber 31a, 31b cutting fiber end 20 1352831 32 fiber core wire 33 bifurcated optical fiber material 34 connecting fiber core wire end material 35 bifurcated fiber core wire end material 36 dummy core wire end material 37 sheet 38 resin material 39, 40 branch filter 41 bifurcated optical fiber core end material A, Al, A2, A3, A4 bridging portion B, C, D, Cl, C2, C3 circuit portion 100 substrate 101 main body portion 102 tab 200 circuit package 201 printed circuit board 202 optical connector