201202771 六、發明說明： 【發明所屬之技術領域】 本發明係關於具備有複數送光部的對向部與具備有複 數受光部的對向部相對向而構成複數光耦合部的光耦合裝 置。 【先前技術】 傳達複數光訊號的面對向型的光耦合裝置係具有彼此 相對向的2個對向部，在其中一方對向部設有送光部，在 另一方對向部設有受光部，若2個對向部相對向時*所有 送光部與受光部會一對一相對向，在複數部位構成授受光 訊號的光耦合部 以下專利文獻1所記載之光耦合裝置係其中一方對向 部具備有複數發光元件的發光元件陣列，另一方對向部具 有複數光入出射部及與其相耦合的複數條光導波路的光導 波路陣列。複數發光元件與複數光入出射部相對向而在複 數部位構成光耦合部。 在專利文獻1所記載之發明中，複數光耦合部朝向與 光導波路延伸的方向呈正交的方向位置偏移而作配置，而 且光耦合部係在與光導波路延伸的方向呈正交的方向以直 線狀排列。 在上述構造中，光耦合部朝向與光導波路延伸的方向 呈正交的方向位置偏移，因此不會將複數光導波路相重疊 ，而可朝寬幅方向隔著間隔作配置。但是，若欲將光導波 -5- 201202771 路朝向與前述方向呈正交的方向’複數光導波路會相重疊 ，而無法使光導波路以平面展開而引出。 專利文獻2所記載之光模組係其中一方對向部爲具有 複數發光部的面發光雷射，另一方對向部爲保持複數條光 纖的套圈，各個的光纖的前端面與發光部相對向而構成光 耦合部。 該光模組係與專利文獻1同樣地，與光纖相耦合的光 耦合部朝向與光纖延伸的方向呈正交的方向位置偏移而作 配置，在與光纖延伸的方向呈正交的方向中，在直線上排 列配置光耦合部。因此，引出光纖的方向受到限定，並無 法沿著光耦合部在直線上排列的方向而將光纖不重疊地引 出。 若欲將專利文獻1所記載之光導波路或專利文獻2所記 載之光纖，沿著光耦合部以直線排列的方向引出時，必須 將光導波路或光纖發曲。此時，必須使用以將光導波路或 光纖佈線的區域較爲寬廣，而且若彎曲形成光導波路時， 容易發生光在彎曲部的漏洩等問題。 [先前技術文獻] [專利文獻] [專利文獻1]日本特開2004-1 985 79號公報 [專利文獻2]日本特開2〇〇8_46288號公報 【發明內容】 -6 - 201202771 (發明所欲解決之課題） 本發明係解決上述習知之課題者，目的在提供一種可 將以層構造的光導波路或光纖等所代表的導光路朝向不同 的2方向作直線引出，且可提高導光路之佈線自由度的光 耦合裝置。 (解決課題之手段） 本發明係一種光耦合裝置，係設有彼此相對向的第1 對向部與第2對向部，在前述第1對向部與前述第2對向部 的其中一方排列複數送光部，在另外一方排列複數受光部 ，前述第1對向部與前述第2對向部相對向時，在複數部位 構成前述送光部與前述受光部以一對一相對向的光耦合部 ，分別與前述送光部或前述受光部作光耦合的複數導光路 至少延伸至前述第2對向部，該光耦合裝置之其特徵爲： 前述光耦合部係沿λ著朝第1方向延伸之列與朝第2方向 延伸之列排列，朝第1方向延伸之前述列與朝第2方向延伸 之前述列分別設有複數列， 在所有的前述送光部與所有的前述受光部相對向的狀 態下，在複數前述導光路延伸的方向、與前述第1方向及 前述第2方向之間設有未達90度的角度，將複數前述導光 路，不會彼此相重疊，而可朝向選擇至少2個方向的任一 者的方向延長。 本發明之光耦合裝置係沿著第1方向之列與第2方向之 列而排列設置光耦合部，藉由將導光路的延伸方向形成爲 201202771 與第1方向與第2方向之雙方不相一致的方向，藉此在改變 導光路延伸的方向時，可不會將複數導光路彼此相重疊而 引出。因此，可確保導光路的佈線自由度，可有效使用用 以佈線導光路的區域。 本發明中的「導光路」係由形成薄膜的層構造的「光 導波路」或「光纖」所構成。「送光部」係發光二極體等 發光元件、或光所出射的「導光路」的端部。「受光部」 係由送光部所發出的光所入射的「導光路」的端部、或光 電晶體或光二極體等受光元件。 前述「導光路的端部」係例如導光路的端面被形成爲 斜向的傾斜面，在該傾斜面形成反射鏡面等，在導光路內 部傳播的光可由導光路出射者，或者形成爲可將所入射的 光導入至導光路內部的構造者。 此外，較佳爲至少在「送光部」設有微透鏡陣列，由 送光部所發出的光在微透鏡被聚光，而被供予至受光部。 或者，亦可在送光部與受光部之雙方設有微透鏡陣列，由 送光部所發出的光因微透鏡而被形成爲平行光，該平行光 因微透鏡而被聚光，而入射至受光部者。 例如，構成爲：前述第1方向與前述第2方向呈直角， 前述光耦合部在前述第1方向之列與前述第2方向之列分別 以相同數量排列》 此時，較佳爲複數前述導光路所延伸的方向爲彼此呈 正交的X方向或Y方向的任一者，將X方向與前述第1方向 所成角度及前述Y方向與前述第2方向所成角度設爲Θ (0度 201202771 < θ < 90度）、朝向前述第1方向與前述第2方向排列的前 述光耦合部的數量設爲Ν、前述第1方向的排列間距設爲dl 、前述第2方向的排列間距設爲d2時，爲 d2 ( N-1 ) -sineSdl-cose，且 dl(N-l) · sinO < d2 · cos0 〇 藉由滿足上述關係，將複數導光路，不會相重疊，而 可朝向不同的2個方向的任一者作選擇而引出。 例如’ d 1 = <12。此時，光耦合部係被規則排列在一邊 朝第1方向與第2方向延伸的正方形區域的內部。此外，若 形成爲N · sin0= :0Se，可將導光路等間距配置。 或者，本發E月亦可爲前述第1方向與前述第2方向呈直 角，前述光耦合部係在前述第2方向之列所排列的數量比 在前述第1方向之列所排列的數量爲多。 此時’較佳爲複數前述導光路延伸的方向係彼此呈正 交的X方向或Y方向的任一者，將X方向與前述第1方向所 成角度及前述Y方向與前述第2方向所成角度設爲Θ ( 0度< Θ < 90度）、朝前述第丨方向排列的前述光耦合部的數量設 爲N1、朝前述第2方向排列的前述光耦合部的數量設爲N2 、前述第1方向的排列間距設爲d 1、前述第2方向的排列間 距設爲d 2時 > 爲： d2 ( N2-1 ) .Sin0<dl.cos0、且 dl(Nl-l) · sin0 < d2 · cos0 ° 但是，若d 1 = d2，光耦合部係被規則排列在第1方向 爲短邊、第2方向爲長邊的長方形區域的內部。此時亦若 -9 - 201202771 N2 · sin0= c〇S0，可等間距配置朝其中一方延伸的導光路 〇 此外，本發明亦可爲前述光耦合部設有複數個朝前述 第1方向與前述第2方向在複數部位排列的耦合部群，以由 前述耦合部群延伸的複數前述導光路位於由相鄰接的耦合 部群延伸的複數前述導光路之間的方式，配置有各個的耦 合部群。 在上述發明中，複數前述耦合部群係可形成爲包含通 訊方向彼此不同者。 (發明之效果） 本發明係當使排列複數送光部的對向部、與排列複數 受光部的對向部相對向時，可選擇被設在其中一方對向部 的複數導光路延伸方向爲至少2方向的任一者。 因此，導光路的佈線自由度增加，可有效使用供導光 路佈線之用的區域。而且，將導光路彎曲的必要性變少， 光訊號的傳達損失亦變得容易減低。 【實施方式】 第1圖（Α)所示之光耦合裝置1Α係第1對向部10Α與 第2對向部15Α相對向。第1對向部10Α與第2對向部15Α可 爲自由結合與分離的安裝/卸下連接器，亦可爲無法彼此 分離地予以結合者。 第1對向部10Α係具有：被安裝在基板11的光源陣列12 -10- 201202771 :及被配置在其表面的光耦合基板13，在光耦合基板13的 對向面設有排列複數微透鏡1 4的微透鏡陣列。在光源陣列 12的表面規則排列有複數發光元件12a，微透鏡14分別與 發光元件相對向。在第1對向部10A中，由各個的發光元件 12a及與其相對向的微透鏡14構成各個送光部。 第2對向部15 A具有光耦合基板16，在光耦合基板16的 相對向面設有排列複數微透鏡1 7的微透鏡陣列。 在第2對向部15 A的光耦合基板16接合有可撓性基板20 。在可撓性基板20設有複數條導光路。在第3圖中係以虛 線表示複數條導光路21A (或21B)。導光路21A (或2 1B )係形成在可撓性基板20的表面的光導波路。光導波路係 在可撓性基板20的表面形成有光學材料的層構造。導波路 係利用壓印法或濺鍍法等來形成。 如第1圖（C)所示，在複數導光路21A (或21B)的 各個的端部形成存光入射部2 1 a。例如，光入射部2 1 a係斜 向形成有導光路.的端面，藉由將其斜面形成爲反射鏡面 2 lb而構成。該光入射部21 a係與各個微透鏡17相對向。在 第2對向部15A中，由導光路21A (或21B)的光入射部：Ua 及與其相對向的微透鏡17構成各個受光部。 如第1圖（A)所示，第1對向部10A的對向面與第2對 向部15A的對向面相對向而予以組合時，設在第1對向部 10A的微透鏡14、及設在第2對向部15A的微透鏡17係一對 —相對向。藉此，第1對向部10A的全部送光部及第2對向 部15A的全部受光部相對向，構成送光部與受光部一對一 201202771 相對向的複數光耦合部25A。 在第1圖（A)所示之光耦合裝置1A的各個光耦合部 25A中，由發光元件12a朝向上方所發出的擴散光係藉由微 透鏡14而被轉換成平行光束。該平行光束被微透鏡17聚光 ，而被入射至導光路21A (或21B)的各個光入射部21a» 在第1圖（A )中，亦可取代光源陣列1 2，而配置排列 有光電晶體或光二極體等複數受光元件的受光元件陣列， 使各個受光元件與微透鏡14相對向。此時，在第1對向部 10A中，由受光元件與微透鏡14來構成受光部。另一方面 ，在第2對向部15A中，第1圖（C)所示之導光路21A (或 21B)的端部的元件符號21 a的構造係成爲光出射部，而非 光入射部。由該光出射部及與其相對向的微透鏡17構成送 光部。 第1圖（B)所示之光耦合裝置1B係第1對向部10B與 第2對向部15B相對向。 第1對向部10B係具有光耦合基板18，在光耦合基板18 的相對向面設有排列複數微透鏡19的微透鏡陣列。在第1 對向部10B的光耦合基板18接合有可撓性基板28。在可撓 性基板28的表面設有複數導光路26。導光路26係層構造的 光導波路。複數導光路26係在可撓性基板28的表面，不會 相重疊而朝寬幅方向隔著間隔而設。在各個導光路26的端 部形成有光出射部26a。光出射部26a係與第1圖（C)所示 之光出射部21 a爲相同的構造。光出射部26a與微透鏡19相 對向。 -12- 201202771 第1圖（B )的光耦合裝置1B所設的第2對向部15B係 與第1圖（A)所示之第2對向部15A同樣地’由具有微透 鏡17的光耦合基板16、及具有導光路21A (或21B)的可撓 性基板20所構成》 光耦合裝置1B若使第1對向部10B與第2對向部15:B相 對向予以組合時，設在第1對向部10B的微透鏡19、及設在 第2對向部15B的微透鏡17係一對一相對向。藉此，構成複 數光耦合部25B。 光耦合裝置1B係由第1對向部10B的導光路26的光出射 部26a與微透鏡19構成送光部，由第2對向部15B的導光路 21A (或21B)的光入射部21 a與微透鏡17構成受光部。此 時，由光出射部26a發出的光藉由微透鏡19而被轉換成平 行光束，該平行光束利用微透鏡17被聚光而入射至光入射 部21a»或者，亦可由第2對向部15B的導光路21A (或21B )與微透鏡17構成送光部，由第1對向部10B的導光路26與 微透鏡19構成受光部。 第2圖係第1圖（A)所示之光耦合裝置1A的分解斜視 圖，第3圖與第4關係顯示設在光耦合裝置1A的第2對向部 的俯視圖。如第2圖所示，前述光耦合部25 A係構成多數個 ，但是在第3圖之後爲方便說明，減少光耦合部25A的數量 予以圖示。 在第2圖與第3圖中，以元件符號15A1表示可撓性基板 20朝XI方向延伸的構造的第2對向部，以元件符號15A2表 示可撓性基板20朝Y1方向延伸的構造的第2對向部。在第3 -13- 201202771 圖（A )中，以元件符號21 A表示在第2對向部15A1中，朝 XI方向延伸的可撓性基板20所設的複數條導光路。在第3 圖（B )中，以元件符號21B表示在第2對向部15A2中，朝 Y1方向延伸的可撓性基板2 0所設的導光路。 如第2圖所示，第1對向部10A的光耦合基板13係各自 的邊朝X方向與Y方向延伸的正方形，第2對向部15A1、 15 A2的光耦合基板16亦爲正方形。光耦合基板13與光耦合 基板1 6係以邊與邊相重疊的方式予以組合。 如第2圖與第3圖所示，光耦合部25A係在正方形區域S 內規則排列。正方形區域S係在光耦合基板1 6中斜向傾斜 而形成。以正方形形成排列微透鏡1 4的微透鏡陣列的基板 、及排列微透鏡17的微透鏡陣列的基板，可使該等基板與 正方形區域S相一致。此外，以正方形形成光源陣列12或 受光元件陣列的基板，亦可使該等陣列的基板與正方形區 域S相一致。 如第2圖與第3圖所示，複數光耦合部25A呈規則排列 的正方形區域S的各個的邊與X方向與Y方向並不相一致， 各個的邊相對X方向與Y方向呈角度0(〇度<0< 90度）傾 斜。亦即，區域S的邊係相對光耦合基板1 3及光耦合基板 16的邊傾斜角度Θ，即使相對第1對向部將第2對向部的方 向改變90度，亦以各個送光部與受光部相對向而形成光耦 合部25A的方式所構成。此外，如第4圖所示，即使相對第 1對向部將第2對向部的方向改變90度，亦形成爲各個導光 路21 A彼此或各個導波路21B彼此不會相重疊。 -14- 201202771 結果，即使爲可撓性基板20朝XI方向延伸的第2對向 部15A1、及可撓性基板20朝Y1方向延伸的第2對向部15A2 的任一者，亦可對共通的第1對向部1 0 A加以組合。 如第3圖所示，在第2對向部15A1與第2對向部15A2使 用相同的光耦合基板16。在第2對向部15 A1中，具有導光 路21 A的可撓性基板20由光耦合基板16朝XI方向延伸，在 第2對向部15A2中，具有導光路21B的可撓性基板20由光耦 合基板16朝Y1方向延伸。 具有複數光耦合部25 A的區域S的邊相對X方向與Y方 向傾斜角度Θ，在第3圖（A)所示之第2對向部15A1中， 當將可撓性基板:2〇朝XI方向延長時，可將複數條導光路 21A的各個，不會相重疊而朝Y方向隔著間隔呈平行且直 線延長，在第3圖（B)所示之第2對向部15 A2中，可將複 數條導光路21 B的各個，不會相重疊而朝X方向隔著間隔呈 平行且直線延長"此係在將具有導光路21A的可撓性基板 20朝X2方向延長時、與將具有導光路21B的可撓性基板20 朝Y2方向延長時均爲相同。 在第3圖所示之例中，在光耦合基板16形成有圓孔的 定位部3 1與矩形孔的定位部3 2。在第2圖所示之第1對向部 10A的光耦合基板13設有圓形狀突起的定位部與矩形狀突 起的定位部。藉由定位部3 1、3 2，光耦合基板1 3與光耦合 基板1 6彼此定位而予以組合。此時，光耦合基板1 3與光耦 合基板1 6若未恆爲相同方向，則無法相組合。若使用定位 部31、32來組合光耦合基板13與光耦合基板16，所有微透 -15- 201202771 鏡14與所有微透鏡17係一對一相對向而構成複數光耦合部 25A。 如第3圖所示，在第2對向部15A1與第2對向部15A2使 用相同的光耦合基板16，由於光耦合基板13與光耦合基板 16僅在一定方向加以組合，因此可將導光路21A、21 B的方 向彼此相差90度的第2對向部15A1與第2對向部15A2，不 會弄錯組合，而與第1對向部10A相組合。 以本發明之另一例而言，將第3圖所示之定位部31與 定位部32形成爲相同形狀、相同尺寸的圓形狀或者正方形 ，而將定位部的X方向的間隔與Y方向的間隔設定爲相同 。在該例中，可將第1對向部10A的光耦合基板13與第2對 向部15A的光耦合基板16，以其4個邊彼此相一致的方式進 行定位而加以組合，而且，可將光耦合基板13與光耦合基 板1 6，即使爲相對上旋轉90度的任何方向，均可加以組合 。即使將光耦合基板13與光耦合基板16在任何方向加以組 合，亦即，即使將可撓性基板20設定爲XI方向、X2方向 、Y1方向、Y2方向的任何方向，均可使所有微透鏡14與 所有微透鏡17個別相對向而構成光耦合部25A。 亦即，可將相同構造的第2對向部15A，將可撓性基板 20的方向按每9 0度任意改變，而與第1對向部10A自由組合 e 第4圖係用以求出供複數導光路不會彼此相重疊而可 朝X方向延伸、而且彼此不會相重疊而可朝Y方向延伸的 的光耦合部25 A的排列條件之用的說明圖。 -16- 201202771 光耦合部25A係沿著朝第1方向延伸的列L1與朝第2方 向延伸的列L2的雙方隔著間隔作配置。第1方向的列L 1與 第2方向的列L2爲直角，第1方向的列L 1與第2方向的列L2 係分別設有複數列。但是，在本發明中，第1方向的列L 1 與第2方向的列L2亦可以直角以外的角度相交叉。 彼此呈直角的第1方向的列L1與第2方向的列L2係相對 X方向及Y方向具有角度Θ (〇度<0< 90度）。排列在第1方 向的列L1上的光耦合部25 A的數量、與排列在第2方向的列 L2上的光耦合部25A的數量相同，均爲N。在第4圖之例中 ，N = 4。光耦合部25A係在第1方向的列L1上等間隔排列 ，其間距爲dl。光耦合部25 A係在第2方向的列L2上等間隔 排列，其間距爲d2 » 如第3圖（B)所示，供複數條導光路21B不會彼此相 重疊，而可朝X方向隔著間隔呈平行地朝Y1方向或Y2方向 延伸之用的條件爲d2 ( N-1 ) · sin0< dl · cos0。供朝向Y1 方向或Y2方向延伸的複數導光路21B朝向X方向成爲等間 隔之用的條件爲d2 · N · sin0 = dl · cos0 » 同樣地，如第3圖（A )所示，供複數條導光路21 A不 會彼此相重疊，而可朝Y方向隔著間隔呈平行地朝XI方向 或X2方向延伸之用的條件爲dl ( N-1 ) · sine < d2 · cos(>» 供朝XI方向或X2方向延伸的複數條導光路21A朝向Y方向 成爲等間隔之用的條件爲dl · Ν · sin0= d2 · COS0。 在第1方向的列L 1上的光耦合部2 5 A的排列間距d 1、與 在第2方向的列L2上的光耦合部25A的排列間距d2相等（dl -17- 201202771 =d2 )，光耦合部25A規則排列在正方形區域S時，供複數 條導光路朝向Y1方向、Y2方向、XI方向、X2方向的所有 方向，不會彼此相重疊而延伸出去之用的條件爲（N-1) • sin0 < cos Θ，前述4方向的各個方向中，供導光路的間隔 成爲相等之用的條件爲N · sin0 = cos0 » 第5圖係顯示本發明之第2實施形態之光耦合裝置101 〇 該光耦合裝置101係第1方向的列L1與第2方向的列L2 呈直角，在各自的列與X方向及Y方向之間設有角度θ(0 度< θ< 90度）。排列在第1方向的列L1的光耦合部25Α的 數量爲Ν1，排列在第2方向的列L2的光耦合部25Α的數量 爲Ν2，Ν1<Ν2。在第1方向的列L1上的光耦合部25Α的排 列間距爲dl，在第2方向的列L2上的光耦合部25Α的排列間 距爲d2。 如第5圖（B)所示，供複數條導光路21B不會彼此相 重疊，而可朝X方向隔著間隔朝Y1方向或Y2方向延伸之用 的條件爲 d2(N2-l) 供朝 Y1 方向或 Y2 方向延伸的複數條導光路21Β朝X方向成爲等間隔之用的條 件爲 d2 · Ν2 · sin0 = dl · cos0。 同樣地，如第5圖（A)所示，供複數導光路21 A不會 彼此相重疊，而可朝Y方向隔著間隔朝XI方向或X2方向延 伸之用的條件爲dl ( N1-1 ) · sine < d2 · cos0。供朝XI方 向或X2方向延伸的複數條導光路21 A朝Y方向成爲等間隔 的條件爲 dl · N1 · sin0 = d2 · cos9。 -18- 201202771[Technical Field] The present invention relates to an optical coupling device that includes a plurality of light-receiving portions, and a pair of optical-coupling portions that face the opposing portions including the plurality of light-receiving portions. [Prior Art] A facing type optical coupling device that transmits a plurality of optical signals has two opposing portions facing each other, and one of the opposing portions is provided with a light transmitting portion, and the other facing portion is provided with a light receiving portion. In the case where the two opposing portions are opposed to each other, all of the light-transmitting portions and the light-receiving portions are opposed to each other, and the optical coupling portion that transmits and receives the optical signals is formed in the plurality of portions. One of the optical coupling devices described in Patent Document 1 is one of the optical coupling devices described in Patent Document 1. The opposite portion is provided with a light-emitting element array having a plurality of light-emitting elements, and the other opposing portion has a plurality of light-injecting and outputting portions and an optical waveguide array of a plurality of optical waveguides coupled thereto. The plurality of light-emitting elements are opposed to the plurality of light-injecting and exiting portions and constitute optical coupling portions at the plurality of portions. In the invention described in Patent Document 1, the plurality of optical coupling units are arranged to be displaced in a direction orthogonal to the direction in which the optical waveguide extends, and the optical coupling unit is oriented in a direction orthogonal to the direction in which the optical waveguide extends. Arranged in a straight line. In the above configuration, since the optical coupling portion is displaced in the direction orthogonal to the direction in which the optical waveguide extends, the plurality of optical waveguides are not overlapped and can be arranged at intervals in the wide direction. However, if the optical waveguide -5 - 201202771 is oriented in a direction orthogonal to the above direction, the plurality of optical waveguides will overlap, and the optical waveguide cannot be developed in a planar manner. In the optical module described in Patent Document 2, one of the opposing portions is a surface-emitting laser having a plurality of light-emitting portions, and the other opposing portion is a ferrule holding a plurality of optical fibers, and the front end surface of each of the optical fibers is opposed to the light-emitting portion. The light coupling portion is formed in the opposite direction. In the optical module, as in Patent Document 1, the optical coupling portion coupled to the optical fiber is displaced in a direction orthogonal to the direction in which the optical fiber extends, and is disposed in a direction orthogonal to the direction in which the optical fiber extends. The optical coupling unit is arranged in a line. Therefore, the direction in which the optical fibers are taken out is limited, and it is not possible to lead the optical fibers without overlapping along the direction in which the optical coupling portions are arranged in a straight line. When the optical waveguide described in Patent Document 1 or the optical fiber described in Patent Document 2 is to be taken out in a direction in which the optical coupling portions are arranged in a line, it is necessary to warn the optical waveguide or the optical fiber. In this case, it is necessary to use a region in which the optical waveguide or the optical fiber is wired, and when the optical waveguide is formed by bending, problems such as leakage of light in the curved portion are likely to occur. [PRIOR ART DOCUMENT] [Patent Document 1] Japanese Laid-Open Patent Publication No. 2004-1 985-79 (Patent Document 2) JP-A-2002-46288 (Summary of Invention) -6 - 201202771 Problem to be Solved by the Invention It is an object of the present invention to provide a light guide path represented by an optical waveguide or an optical fiber having a layer structure, which can be linearly drawn in two directions, and which can improve the wiring of the light guide path. A degree of freedom optical coupling device. (Means for Solving the Problem) The present invention relates to an optical coupling device that is provided with a first opposing portion and a second opposing portion that face each other, and one of the first opposing portion and the second opposing portion When a plurality of light-receiving portions are arranged, and the plurality of light-receiving portions are arranged on the other side, and the first opposing portion and the second opposing portion are opposed to each other, the light-transmitting portion and the light-receiving portion are opposed to each other in a plurality of positions. The optical coupling unit is configured to extend at least the plurality of light guiding paths optically coupled to the light transmitting unit or the light receiving unit to the second opposing portion. The optical coupling device is characterized in that the optical coupling unit is along the λ The one-direction extending row is arranged in a row extending in the second direction, and the plurality of rows extending in the first direction and the row extending in the second direction are respectively provided in a plurality of rows, and all of the light-transmitting portions and all of the light-receiving portions are provided In a state in which the portions are opposed to each other, an angle of less than 90 degrees is provided between the plurality of light guiding paths extending direction and the first direction and the second direction, and the plurality of light guiding paths do not overlap each other. Can be oriented at least 2 The direction of extension any one direction. In the optical coupling device of the present invention, the optical coupling portion is arranged along the first direction and the second direction, and the direction in which the light guiding path extends is formed as 201202771, which is different from the first direction and the second direction. The direction is uniform, whereby when the direction in which the light guiding path extends is changed, the plurality of light guiding paths can be extracted without overlapping each other. Therefore, the degree of freedom in wiring of the light guiding path can be ensured, and the area for wiring the light guiding path can be effectively used. The "light guiding path" in the present invention is constituted by a "light guiding path" or an "optical fiber" having a layer structure of a thin film. The "light-transmitting portion" is a light-emitting element such as a light-emitting diode or an end portion of a "light-guiding path" from which light is emitted. The "light-receiving unit" is an end portion of a "light guiding path" to which light emitted from a light-transmitting portion is incident, or a light-receiving element such as an optoelectronic crystal or a photodiode. The "end portion of the light guiding path" is, for example, an end surface of the light guiding path which is formed as an inclined surface, and a mirror surface or the like is formed on the inclined surface, and light propagating inside the light guiding path can be emitted by the light guiding path or can be formed. The incident light is introduced to the constructor inside the light guiding path. Further, it is preferable that at least the "light-transmitting portion" is provided with a microlens array, and light emitted from the light-transmitting portion is collected by the microlens and supplied to the light-receiving portion. Alternatively, a microlens array may be provided on both the light transmitting portion and the light receiving portion, and the light emitted from the light transmitting portion may be formed as parallel light by the microlens, and the parallel light may be collected by the microlens to be incident. To the recipient of the light. For example, the first direction is perpendicular to the second direction, and the optical coupling unit is arranged in the same number in the first direction and the second direction. The direction in which the optical path extends is either the X direction or the Y direction orthogonal to each other, and the angle formed by the X direction and the first direction and the angle formed by the Y direction and the second direction are set to Θ (0 degree). 201202771 < θ < 90 degrees), the number of the light-coupling portions arranged in the first direction and the second direction is Ν, the arrangement pitch in the first direction is dl, and the arrangement pitch in the second direction is When it is set to d2, it is d2 ( N-1 ) -sineSdl-cose, and dl(Nl) · sinO < d2 · cos0 〇 By satisfying the above relationship, the complex light guiding paths do not overlap, but can be oriented differently Any one of the two directions is selected and drawn. For example ' d 1 = <12. At this time, the optical coupling portion is regularly arranged inside the square region extending in the first direction and the second direction. Further, if N · sin0 = :0Se is formed, the light guiding paths can be arranged at equal intervals. Alternatively, in the E-month of the present invention, the first direction may be at a right angle to the second direction, and the number of the optical coupling portions arranged in the second direction may be larger than the number arranged in the first direction. many. In this case, it is preferable that the direction in which the plurality of light guiding paths extend is the X direction or the Y direction orthogonal to each other, and the angle formed by the X direction and the first direction, and the Y direction and the second direction are The angle is Θ (0 degrees < Θ < 90 degrees), the number of the light coupling portions arranged in the second direction is N1, and the number of the light coupling portions arranged in the second direction is N2. When the arrangement pitch of the first direction is d 1 and the arrangement pitch of the second direction is d 2 > d2 ( N2-1 ) . Sin0< dl.cos0 and dl(Nl-1) Sin0 < d2 · cos0 ° However, if d 1 = d2, the optical coupling portion is regularly arranged inside the rectangular region in which the first direction is the short side and the second direction is the long side. In this case, if -9 - 201202771 N2 · sin0 = c 〇 S0, the light guiding path extending toward one of the two can be arranged at equal intervals. In addition, the present invention may be provided with the plurality of light coupling portions facing the first direction and the foregoing The coupling portion group in which the second direction is arranged at the plurality of portions is disposed such that the plurality of light guiding paths extending from the coupling portion group are located between the plurality of light guiding paths extending from the adjacent coupling portion group, and each coupling portion is disposed group. In the above invention, the plurality of coupling unit groups may be formed to include the communication directions different from each other. (Effect of the Invention) In the present invention, when the opposing portions of the plurality of light-receiving portions are arranged to face the opposing portions of the plurality of light-receiving portions, the direction in which the plurality of light guiding paths are provided in one of the opposing portions can be selected as Any of at least 2 directions. Therefore, the degree of freedom in wiring of the light guiding path is increased, and an area for guiding the optical wiring can be effectively used. Further, the necessity of bending the light guiding path is reduced, and the transmission loss of the optical signal is also easily reduced. [Embodiment] The optical coupling device 1 shown in Fig. 1 (Α) faces the first opposing portion 10A and the second opposing portion 15A. The first opposing portion 10'' and the second opposing portion 15'' can be detachably attached and detached, or can be joined without being separated from each other. The first opposing portion 10 has a light source array 12 -10- 201202771 mounted on the substrate 11 and an optical coupling substrate 13 disposed on the surface thereof, and a plurality of microlenses are arranged on the opposite surface of the optical coupling substrate 13 1 4 microlens array. A plurality of light-emitting elements 12a are regularly arranged on the surface of the light source array 12, and the microlenses 14 are opposed to the light-emitting elements, respectively. In the first opposing portion 10A, each of the light-emitting elements 12a and the microlens 14 opposed thereto constitute a light-transmitting portion. The second opposing portion 15A has an optical coupling substrate 16, and a microlens array in which a plurality of microlenses 17 are arranged is provided on the opposing surface of the optical coupling substrate 16. The flexible substrate 20 is bonded to the optical coupling substrate 16 of the second opposing portion 15A. A plurality of light guiding paths are provided on the flexible substrate 20. In Fig. 3, a plurality of light guiding paths 21A (or 21B) are indicated by dashed lines. The light guiding path 21A (or 2 1B) is an optical waveguide formed on the surface of the flexible substrate 20. Optical waveguide system A layer structure of an optical material is formed on the surface of the flexible substrate 20. The waveguide is formed by an imprint method, a sputtering method, or the like. As shown in Fig. 1(C), the light incident portion 2 1 a is formed at each end portion of the plurality of light guiding paths 21A (or 21B). For example, the light incident portion 2 1 a is formed with an end surface on which the light guiding path is formed obliquely, and is formed by forming the inclined surface as the mirror surface 2 lb . The light incident portion 21a is opposed to each of the microlenses 17. In the second opposing portion 15A, the light incident portion: Ua of the light guiding path 21A (or 21B) and the microlens 17 opposed thereto constitute the respective light receiving portions. When the opposing surface of the first opposing portion 10A and the opposing surface of the second opposing portion 15A are opposed to each other as shown in FIG. 1(A), the microlens 14 provided in the first opposing portion 10A is provided. And the microlenses 17 provided in the second opposing portion 15A are opposed to each other. As a result, all of the light-receiving portions of the first opposing portion 10A and all of the light-receiving portions of the second opposing portion 15A face each other, and a plurality of optical coupling portions 25A that face the light-receiving portion and the light-receiving portion one-to-one 201202771 are formed. In each of the optical coupling portions 25A of the optical coupling device 1A shown in Fig. 1(A), the diffused light emitted upward by the light-emitting element 12a is converted into a parallel light beam by the microlens 14. The parallel light beam is condensed by the microlens 17 and is incident on each of the light incident portions 21a of the light guiding path 21A (or 21B). In the first drawing (A), instead of the light source array 12, the photoelectric array is arranged. An array of light receiving elements of a plurality of light receiving elements such as a crystal or a photodiode, and the respective light receiving elements and the microlens 14 are opposed to each other. At this time, in the first opposing portion 10A, the light receiving element and the microlens 14 constitute a light receiving portion. On the other hand, in the second opposing portion 15A, the structure of the element symbol 21a at the end of the light guiding path 21A (or 21B) shown in Fig. 1(C) is a light emitting portion instead of the light incident portion. . The light-emitting portion and the microlens 17 opposed thereto constitute a light-transmitting portion. The optical coupling device 1B shown in Fig. 1(B) faces the first opposing portion 10B and the second opposing portion 15B. The first opposing portion 10B has an optical coupling substrate 18, and a microlens array in which a plurality of microlenses 19 are arranged is provided on the opposing surface of the optical coupling substrate 18. The flexible substrate 28 is bonded to the optical coupling substrate 18 of the first opposing portion 10B. A plurality of light guiding paths 26 are provided on the surface of the flexible substrate 28. The light guiding path of the light guiding path 26 is a layer structure. The plurality of light guiding paths 26 are provided on the surface of the flexible substrate 28 so as not to overlap each other and are spaced apart from each other in the width direction. A light emitting portion 26a is formed at an end of each of the light guiding paths 26. The light emitting portion 26a has the same structure as the light emitting portion 21a shown in Fig. 1(C). The light exit portion 26a opposes the microlens 19. -12-201202771 The second opposing portion 15B provided in the optical coupling device 1B of Fig. 1(B) is similar to the second opposing portion 15A shown in Fig. 1(A) by the microlens 17 When the optical coupling substrate 16 and the flexible substrate 20 having the light guiding path 21A (or 21B) are combined, the optical coupling device 1B is configured such that the first opposing portion 10B and the second opposing portion 15B are opposed to each other. The microlens 19 provided in the first opposing portion 10B and the microlens 17 provided in the second opposing portion 15B are opposed to each other in a one-to-one direction. Thereby, the complex optical coupling unit 25B is constructed. In the optical coupling device 1B, the light emitting portion 26a of the light guiding path 26 of the first opposing portion 10B and the microlens 19 constitute a light transmitting portion, and the light incident portion 21 of the light guiding path 21A (or 21B) of the second opposing portion 15B is formed. a and the microlens 17 constitute a light receiving portion. At this time, the light emitted from the light exit portion 26a is converted into a parallel light beam by the microlens 19, and the parallel light beam is collected by the microlens 17 to be incident on the light incident portion 21a» or may be the second opposite portion. The light guiding path 21A (or 21B) of the 15B and the microlens 17 constitute a light transmitting portion, and the light guiding path 26 of the first opposing portion 10B and the microlens 19 constitute a light receiving portion. Fig. 2 is an exploded perspective view of the optical coupling device 1A shown in Fig. 1(A), and Fig. 3 and the fourth relationship show a plan view of the second opposing portion of the optical coupling device 1A. As shown in Fig. 2, the optical coupling unit 25A is formed in a plurality of configurations. However, for convenience of description after the third embodiment, the number of the optical coupling units 25A is reduced. In the second and third figures, the second opposite portion of the structure in which the flexible substrate 20 extends in the XI direction is indicated by the reference numeral 15A1, and the structure in which the flexible substrate 20 extends in the Y1 direction is indicated by the reference numeral 15A2. The second opposite part. In Fig. 3 - 13 - 201202771 (A), a plurality of light guiding paths provided in the flexible substrate 20 extending in the XI direction in the second opposing portion 15A1 are indicated by the reference numeral 21 A. In the third diagram (B), the light guide path provided in the flexible substrate 20 extending in the Y1 direction in the second opposite portion 15A2 is indicated by the reference numeral 21B. As shown in Fig. 2, the optical coupling substrate 13 of the first opposing portion 10A has a square in which the sides extend in the X direction and the Y direction, and the optical coupling substrate 16 of the second opposing portions 15A1 and 15A2 also has a square shape. The optical coupling substrate 13 and the optical coupling substrate 16 are combined so that sides and edges overlap each other. As shown in FIGS. 2 and 3, the optical coupling portions 25A are regularly arranged in the square region S. The square region S is formed obliquely obliquely in the optical coupling substrate 16. The substrate on which the microlens array of the microlens 14 is arranged and the substrate on which the microlens array of the microlens 17 are arranged are formed in a square shape, and the substrates can be aligned with the square region S. Further, the substrate of the light source array 12 or the light-receiving element array is formed in a square shape, and the substrates of the arrays may be aligned with the square region S. As shown in FIGS. 2 and 3, the sides of the square region S in which the plurality of optical coupling portions 25A are regularly arranged do not coincide with the X direction and the Y direction, and the respective sides are at an angle with respect to the X direction and the Y direction. (〇度 <0<0<0>90 degrees) tilt. In other words, the edge of the region S is inclined by an angle Θ with respect to the side of the optical coupling substrate 13 and the optical coupling substrate 16, and the light transmitting portion is also changed by changing the direction of the second opposing portion by 90 degrees with respect to the first opposing portion. The optical coupling unit 25A is formed to face the light receiving unit. Further, as shown in Fig. 4, even if the direction of the second opposing portion is changed by 90 degrees with respect to the first opposing portion, the respective light guiding paths 21 A or the respective waveguides 21B do not overlap each other. -14-201202771 As a result, any of the second opposing portion 15A1 extending in the XI direction of the flexible substrate 20 and the second opposing portion 15A2 extending in the Y1 direction of the flexible substrate 20 may be used. The common first opposing unit 10 A is combined. As shown in Fig. 3, the same optical coupling substrate 16 is used for the second opposing portion 15A1 and the second opposing portion 15A2. In the second opposing portion 15 A1, the flexible substrate 20 having the light guiding path 21 A extends in the XI direction from the optical coupling substrate 16 , and the flexible substrate 20 having the light guiding path 21B in the second opposing portion 15A2 The light coupling substrate 16 extends in the Y1 direction. The side of the region S having the plurality of optical coupling portions 25 A is inclined at an angle Θ with respect to the X direction with respect to the Y direction, and in the second opposing portion 15A1 shown in Fig. 3(A), when the flexible substrate is 2: When the XI direction is extended, each of the plurality of light guiding paths 21A can be parallel and linearly extended in the Y direction without overlapping, and is in the second opposing portion 15 A2 shown in FIG. 3(B). When the flexible substrate 20 having the light guiding path 21A is extended in the X2 direction, the plurality of light guiding paths 21 B can be parallel and linearly extended in the X direction without overlapping each other. The same applies to the case where the flexible substrate 20 having the light guiding path 21B is extended in the Y2 direction. In the example shown in Fig. 3, the positioning portion 31 of the circular hole and the positioning portion 32 of the rectangular hole are formed in the optical coupling substrate 16. The optical coupling substrate 13 of the first opposing portion 10A shown in Fig. 2 is provided with a positioning portion having a circular projection and a positioning portion protruding in a rectangular shape. The optical coupling substrate 13 and the optical coupling substrate 16 are positioned to be combined with each other by the positioning portions 3 1 and 3 2 . At this time, if the optical coupling substrate 13 and the optical coupling substrate 16 are not always in the same direction, they cannot be combined. When the optical coupling substrate 13 and the optical coupling substrate 16 are combined by using the positioning portions 31 and 32, all of the micro-transmission -15-201202771 mirrors 14 and the microlenses 17 are opposed to each other to form a plurality of optical coupling portions 25A. As shown in FIG. 3, the same optical coupling substrate 16 is used for the second opposing portion 15A1 and the second opposing portion 15A2, and since the optical coupling substrate 13 and the optical coupling substrate 16 are combined only in a certain direction, the guiding can be performed. The second opposing portion 15A1 and the second opposing portion 15A2, in which the directions of the optical paths 21A and 21B are different from each other by 90 degrees, are combined with the first opposing portion 10A without being mistakenly combined. In another example of the present invention, the positioning portion 31 and the positioning portion 32 shown in FIG. 3 are formed into a circular shape or a square shape having the same shape and the same size, and the interval between the X direction of the positioning portion and the Y direction is formed. Set to the same. In this example, the optical coupling substrate 13 of the first opposing portion 10A and the optical coupling substrate 16 of the second opposing portion 15A can be positioned and combined so that the four sides thereof coincide with each other, and The optical coupling substrate 13 and the optical coupling substrate 16 can be combined even in any direction rotated by 90 degrees. Even if the optical coupling substrate 13 and the optical coupling substrate 16 are combined in any direction, that is, even if the flexible substrate 20 is set to any of the XI direction, the X2 direction, the Y1 direction, and the Y2 direction, all the microlenses can be made. The light coupling portion 25A is formed by opposing the microlenses 17 individually. In other words, the second opposing portion 15A having the same structure can be arbitrarily changed in the direction of the flexible substrate 20 every 90 degrees, and can be freely combined with the first opposing portion 10A. An explanatory diagram for the arrangement condition of the optical coupling portion 25 A which can extend in the X direction without overlapping the plurality of light guiding paths and which can extend in the Y direction. -16-201202771 The optical coupling unit 25A is disposed at intervals between both the row L1 extending in the first direction and the row L2 extending in the second direction. The column L 1 in the first direction and the column L2 in the second direction are right angles, and the column L 1 in the first direction and the column L2 in the second direction are respectively provided in a plurality of columns. However, in the present invention, the column L 1 in the first direction and the column L2 in the second direction may intersect at an angle other than a right angle. The column L1 in the first direction and the column L2 in the second direction at right angles to each other have an angle Θ (〇 degree < 0° 90 degrees) with respect to the X direction and the Y direction. The number of the optical coupling portions 25 A arranged in the column L1 in the first direction is the same as the number of the optical coupling portions 25A arranged in the column L2 in the second direction, and is N. In the example of Figure 4, N = 4. The optical coupling unit 25A is arranged at equal intervals in the column L1 in the first direction, and has a pitch of dl. The optical coupling portions 25 A are arranged at equal intervals in the column L2 in the second direction, and the pitch is d2 » as shown in FIG. 3(B), the plurality of light guiding paths 21B do not overlap each other, but can be oriented in the X direction. The condition for extending in the Y1 direction or the Y2 direction in parallel across the interval is d2 (N-1) · sin0< dl · cos0. The condition that the plurality of light guiding paths 21B extending in the Y1 direction or the Y2 direction are equally spaced in the X direction is d2 · N · sin0 = dl · cos0 » Similarly, as shown in Fig. 3(A), a plurality of bars are provided. The light guiding paths 21 A do not overlap each other, and the conditions for extending in the XI direction or the X2 direction in parallel in the Y direction are dl ( N-1 ) · sine < d2 · cos (> The condition that the plurality of light guiding paths 21A extending in the XI direction or the X2 direction are equally spaced in the Y direction is dl · Ν · sin0 = d2 · COS0. The light coupling portion 2 in the column L 1 in the first direction The arrangement pitch d 1 of A is equal to the arrangement pitch d2 of the optical coupling portion 25A on the column L2 in the second direction (dl -17 - 201202771 = d2 ), and the optical coupling portion 25A is regularly arranged in the square region S for plural The condition that the strip light guiding path extends in all directions of Y1 direction, Y2 direction, XI direction, and X2 direction without overlapping each other is (N-1) • sin0 < cos Θ, the respective directions of the above four directions In the case where the interval between the light guiding paths is equal, N · sin0 = cos0 » Fig. 5 shows the present In the optical coupling device 101 according to the second embodiment, the optical coupling device 101 has a column L1 in the first direction and a column L2 in the second direction at right angles, and an angle θ is provided between the respective columns and the X direction and the Y direction ( 0 degrees < θ < 90 degrees. The number of the light coupling portions 25A of the column L1 arranged in the first direction is Ν1, and the number of the light coupling portions 25A of the column L2 arranged in the second direction is Ν2, Ν1 < Ν2. The arrangement pitch of the light coupling portions 25A in the column L1 in the first direction is dl, and the arrangement pitch of the light coupling portions 25A in the column L2 in the second direction is d2. As shown in Fig. 5(B), the plural is provided. The strip light guiding paths 21B do not overlap each other, and the conditions for extending in the Y direction or the Y2 direction with the interval in the X direction are d2 (N2-l) for a plurality of light guiding paths 21 extending in the Y1 direction or the Y2 direction. The condition for equal spacing in the X direction is d2 · Ν2 · sin0 = dl · cos0. Similarly, as shown in Fig. 5(A), the plurality of light guiding paths 21 A do not overlap each other but can be turned toward Y. The condition for extending the direction in the XI direction or the X2 direction across the interval is dl ( N1-1 ) · sine < d2 · cos0. For the direction of XI or X2 The condition that the plurality of light guiding paths 21 A extending in the direction are equally spaced in the Y direction is dl · N1 · sin0 = d2 · cos9. -18- 201202771
當在第1方向的列L1上的光耦合部25A的排列間距dl、 與在第2方向的列L2上的光耦合部25A的排列間距d2相等（ dl=d2)，且光耦合部25入在長方形區域3 1內規則排列時 ，供導光路朝向Y1方向、Y2方向、XI方向、X2方向的全 部方向不會相重疊而延伸的條件爲（N2-1) · sin0< cosG 。亦即dl = d2時，若朝Y1或Y2方向延伸的導光路21B不會 彼此相重疊而可朝X方向隔著間隔延伸，並不會有朝向XI 或Χ2方向延伸的導光路21 Α相重疊的情形。 此時，若N2·sinθ=cosθ，如第5圖（B)所示，朝Yl 方向或Y2方向延伸的導光路21B朝X方向等間隔排列，如 第5圖（A )所示，朝XI方向或X2方向延伸的導光路21 A以 等間隔部分、與非等間隔部分相互反覆的方式作排列。 如第5圖所不’在第1方向的列L1與第2方向的列L2， 光耦合部25 A排列的數量不同的構造中，僅可將第i對向部 10A的光耦合基板13與第2對向部15A的光耦合基板16以長 邊與短邊彼此相一致的方向加以組合，若使光耦合基板13 與光耦合基板16旋轉90度而相對向時，所有微透鏡14與所 有微透鏡17變得無法相對向。 因此，將如第5圖（A)所示導光路21A朝XI或X2方向 延伸的第2對向部15A1、及如第5圖（B)所示導光路21B 朝Y1或Y2方向延伸的第2對向部15A2，不會弄錯其方向， 而可組合在第1對向部1 〇 A。 第6圖係顯示本發明之第3實施形態之光耦合裝置2〇1 的說明圖。 -19- 201202771 該光耦合裝置2〇1係複數組的耦合部群G1、G2、G3、 G4朝向X方向與Y方向隔著間隔配置在共通的光耦合基板 13、17。耦合部群Gl、G2、G3、G4的各個具有複數光耦 合部25A。耦合部群Gl、G2、G3、G4的各個中的光耦合部 25 A的排列狀態及排列條件係與第3圖至第5圖所示之各個 實施形態相同。因此，在耦合部群Gl、G2、G3、G4的各 個中，可將複數條導光路，不會彼此相重疊而朝向XI方向 、X2方向、Y1方向、Y2方向的各個的方向引出。 如第6圖所示，耦合部群G1與耦合部群G2係朝向Y方 向稍微位置偏移，由耦合部群G2延伸的導光路21 A2會進 入到由耦合部群G1朝向XI方向或X2方向延伸之相鄰接的 導光路21A1與導光路21A1之間。此在耦合部群G3與G4中 亦同。 此外，耦合部群G1與耦合部群G3係朝向X方向稍微位 置偏移，由耦合部群G3延伸的導光路21 B2會進入到由耦合 部群G1朝Y1方向或Y2方向延伸的相鄰接的導光路21B1與 導光路21B1之間。此在耦合部群G2與G4中亦同。 第6圖所示之光耦合裝置201係將耦合部群Gl、G2、 G3、G4的任一者作爲送訊用來加以使用，其他者則作爲 收訊來加以使用，藉此較易於使用在雙向通訊。 其中，在第1圖（B)所示之第1對向部10B與第2對向 部15B相對向的光耦合裝置1B中，亦可相對可撓性基板28 的延伸方向，使可撓性基板20朝不同的4個方向作選擇而 延伸。供其之用的光耦合部25B的排列條件等係與第2圖至 -20- 201202771 第6圖所示之各實施形態相同β 其中’在第1圖（Α)所示之光耦合部25Α與第1圖（Β )所示之光耦合部25B中，在送光部與受光部之雙方設有 微透鏡14、17、19，但是亦可僅在送光部設置微透鏡，在 受光部被供予以微透鏡所聚集到的光。或者，在可使來自 送光部的光有效入射至受光部的構造中，亦可在光耦合部 中刪除微透鏡。 【圖式簡單說明】 第1圖（A ) ( B ) ( C )係顯示本發明之實施形態之 光耦合裝置的側面圖。 第2圖係第1圖（A )所示之光耦合裝置的分解斜視圖 〇 第3圖（A) (B)係說明導光路的引出方向的光耦合 裝置的俯視圖。 第4圖係光耦合裝置的放大俯視圖。 第5圖（A) (B)係顯示在第1方向與第2方向’光耦 合部的排列個數不同的光親合裝置的俯視圖。 第6圖係顯示排列複數耦合部群的光耦合裝置的俯視 圖。 【主要元件符號說明】 ΙΑ、1B、101、201:光耦合裝置 10A、10B : 1對向部 -21 - 201202771 1 1 :基板 1 2 :光源陣列 1 2 a :發光元件 13、 16、18:光耦合基板 14、 17、19:微透鏡 15A、15A1、15A2、15B:第 2 對向部 20、28 :可撓性基板 21A、21B、26:導光路 25A、25B :光耦合部 3 1、3 2 :定位部The arrangement pitch d1 of the optical coupling portions 25A in the column L1 in the first direction is equal to the arrangement pitch d2 of the optical coupling portions 25A in the column L2 in the second direction (dl=d2), and the optical coupling portion 25 is inserted. When the rectangular regions 31 are regularly arranged, the conditions in which the light guiding paths are not overlapped in all directions in the Y1 direction, the Y2 direction, the XI direction, and the X2 direction are (N2-1) sin0< cosG . In other words, when dl = d2, the light guiding paths 21B extending in the Y1 or Y2 direction do not overlap each other and may extend in the X direction with an interval therebetween, and the light guiding paths 21 extending in the direction of XI or Χ2 do not overlap. The situation. At this time, if N2·sin θ=cos θ, as shown in Fig. 5(B), the light guiding paths 21B extending in the Y1 direction or the Y2 direction are arranged at equal intervals in the X direction, as shown in Fig. 5(A), toward XI. The light guiding path 21 A extending in the direction or the X2 direction is arranged in such a manner that the equally spaced portions and the non-equally spaced portions overlap each other. In the structure in which the number L1 of the column L1 in the first direction and the column L2 in the second direction are different from each other in the fifth direction, the optical coupling substrate 13 of the i-th opposite portion 10A can be separated from the structure. The optical coupling substrate 16 of the second opposing portion 15A is combined in a direction in which the long side and the short side coincide with each other. When the optical coupling substrate 13 and the optical coupling substrate 16 are rotated by 90 degrees, all the microlenses 14 and all are The microlenses 17 become incapable of opposing each other. Therefore, the second opposing portion 15A1 extending in the XI or X2 direction of the light guiding path 21A as shown in Fig. 5(A) and the light guiding path 21B shown in Fig. 5(B) extending in the Y1 or Y2 direction are provided. The opposing portion 15A2 is combined with the first opposing portion 1A without correcting the direction. Fig. 6 is an explanatory view showing an optical coupling device 2A1 according to a third embodiment of the present invention. -19-201202771 The coupling unit groups G1, G2, G3, and G4 of the optical-coupled device 2〇1 complex array are disposed on the common optical coupling substrates 13 and 17 at intervals in the X direction and the Y direction. Each of the coupling unit groups G1, G2, G3, and G4 has a complex optical coupling portion 25A. The arrangement state and arrangement condition of the optical coupling portion 25 A in each of the coupling portion groups G1, G2, G3, and G4 are the same as those in the respective embodiments shown in Figs. 3 to 5 . Therefore, in each of the coupling unit groups G1, G2, G3, and G4, a plurality of light guiding paths can be drawn in directions in the XI direction, the X2 direction, the Y1 direction, and the Y2 direction without overlapping each other. As shown in Fig. 6, the coupling portion group G1 and the coupling portion group G2 are slightly displaced in the Y direction, and the light guiding path 21 A2 extending from the coupling portion group G2 enters the direction of the XI direction or the X2 direction by the coupling portion group G1. The adjacent adjacent light guiding path 21A1 and the light guiding path 21A1 are extended. This is also the same in the coupling section groups G3 and G4. Further, the coupling portion group G1 and the coupling portion group G3 are slightly displaced in the X direction, and the light guiding path 21 B2 extending from the coupling portion group G3 enters the adjacent portion extending in the Y1 direction or the Y2 direction by the coupling portion group G1. Between the light guiding path 21B1 and the light guiding path 21B1. This is also the same in the coupling unit groups G2 and G4. The optical coupling device 201 shown in Fig. 6 uses any one of the coupling unit groups G1, G2, G3, and G4 as a transmission, and the other uses it as a reception, thereby being easier to use. Two-way communication. In the optical coupling device 1B in which the first opposing portion 10B and the second opposing portion 15B shown in FIG. 1(B) face each other, the flexibility can be made with respect to the extending direction of the flexible substrate 28. The substrate 20 is extended in a selection of four different directions. The arrangement conditions and the like of the optical coupling portion 25B for use therein are the same as those of the respective embodiments shown in Fig. 2 to -20-201202771, Fig. 6 wherein the optical coupling portion 25 shown in Fig. 1 (Α) In the optical coupling unit 25B shown in Fig. 1(Β), the microlenses 14 and 17 and 19 are provided in both the light transmitting unit and the light receiving unit. However, the microlens may be provided only in the light transmitting unit, and the light receiving unit may be provided in the light receiving unit. It is supplied with light to which the microlens is concentrated. Alternatively, in a structure in which light from the light-transmitting portion can be efficiently incident on the light-receiving portion, the microlens can be deleted in the optical coupling portion. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 (A), (B) and (C) are side views showing an optical coupling device according to an embodiment of the present invention. Fig. 2 is an exploded perspective view of the optical coupling device shown in Fig. 1(A). Fig. 3(A) and (B) are plan views showing the optical coupling device for guiding the light guiding path. Fig. 4 is an enlarged plan view of the optical coupling device. Fig. 5 (A) and (B) are plan views showing an optical affinity device in which the number of arrays of the optical coupling portions in the first direction and the second direction is different. Fig. 6 is a plan view showing an optical coupling device in which a plurality of coupling portion groups are arranged. [Description of main component symbols] ΙΑ, 1B, 101, 201: optical coupling device 10A, 10B: 1 opposite portion - 21 - 201202771 1 1 : substrate 1 2 : light source array 1 2 a : light-emitting elements 13, 16, 18: Optical coupling substrates 14, 17, and 19: microlenses 15A, 15A1, 15A2, and 15B: second opposing portions 20 and 28: flexible substrates 21A, 21B, and 26: light guiding paths 25A and 25B: optical coupling portion 31 3 2 : Positioning department
Gl、G2、G3、G4:耦合部群 L 1 :第1方向的列 L2 :第2方向的列 S :正方形區域 -22-Gl, G2, G3, G4: Coupling group L 1 : Column in the first direction L2: Column in the second direction S: Square area -22-