201137422 六、發明說明 【發明所屬之技術領域】 之光特 本發明涉及-種光纖連接頭，特別是涉及—種可省去 之點膠製程，使光纖準確固定於連接頭中，而得到’好 性的光纖連接頭及製造方法。 【先前技術】201137422 VI. Description of the Invention [Technical Fields of the Invention] The present invention relates to a type of optical fiber connector, and particularly relates to a dispensing process that can be omitted, so that the optical fiber is accurately fixed in the connector, and a good Optical fiber connector and manufacturing method. [Prior Art]
按’光纖是-種可以傳送光線而外形微細的玻璃纖維或透 明塑膠纖維，包括中心部分的光纖絲及外層的保護被皮層。在 應用於光通訊時，通常在其-端組裝_連接頭，以形成一光纖 連接頭。請參閱第-圖和第二圖，其係_光纖連接頭的頭套組 及將一光纖7 —端組裝於該頭套組的立體圖。該頭套組包括一 頭套6及一頭套柄61，該頭套6及頭套柄61之中央處開設有 -貫穿孔62。光纖7可由頭套柄61之貫穿孔62穿人且使光 纖7 —端之光纖絲71由貫穿孔62穿出，因此該貫穿孔以之 内徑係較大於光纖7及光纖絲71之外徑。故而，當組裝時係 先在光纖7及光纖絲71點上黏合劑63後，再將光纖絲71穿 入貫穿孔62巾’使該黏合劑63將光纖7及光纖絲71固定於 頭套組之貫穿孔62中以進行使用。 惟，在光纖7組裝時，對光纖7定位有非常嚴格的要求， 即光纖7中心與貫穿孔62孔徑中心的對位偏差必須小於 5um，而藉由上述以一黏合劑63來固定光纖7與連接頭，當該 光纖絲71穿入貫穿孔62中時，該黏合劑幻會因毛細現象而 往貫穿孔62之一側壁黏附，並且會因光纖絲71穿入時之推擠 而使黏合劑63有氣泡產生，而由於氣泡之膨脹係數比固體大， 所以容易使氣泡推擠光纖絲71，使光纖絲71產生偏移，或被 氣泡推擠而壓斷’進而影響光的傳輸特性，降低光纖7與連接 201137422 頭接合的良率，且以黏合劑63點膠之方式，其精密而複雜的 製程不僅需要使用高精度的組裝設備，同時也提高生產成本。 【發明内容】 本發明之目的係針對上述習知技術之不足提供一種可省 去習用之點膠製程，使光纖準確固定於連接頭中，而得到較好 之光特性的光纖連接頭及製造方法。 為達成上述目的，本發明提供一種光纖連接頭，包括一連 接頭及一體成型於連接頭内的至少一條光纖。 所述連接頭與光纖的連接結構為至少一個盲孔，光纖成型 於盲孔中。 所述光纖連接頭還包括至少一個透明異質基板，透明異質 基板與光纖一起一體成型於連接頭之盲孔一端並和盲孔相隔 一間距，所述透明異質基板的材質為透明之玻璃或者塑膠。 所述連接頭與光纖的連接結構為至少一個貫穿孔，光纖成 型於貫穿孔中。 為達成上述目的，本發明提供一種光纖連接頭的製造方 法，包括以下步驟：首先，將至少一條光纖放入用於成型連接 頭的模具中設定位置並進行對位；然後，向模具中注入連接頭 的原料；最後待連接頭固化成型後，開模即可分離得到光纖連 接頭。 綜上所述，本發明將光纖與連接頭一體成型，不需另外施 加黏合劑，因此可避免黏合劑固化形變及孔徑公差的問題，並 可有效地避免氣泡的產生，以及減少光纖裝入連接頭内時產生 對位偏移，從而使光纖準確固定於連接頭中，而得到較好之光 特性的光纖連接頭。 【實施方式】 為詳細說明本發明之技術内容、構造特徵及其所達成之目 201137422 的 >、功效，以下絲例舉實施例並配合圖式詳予說明。 ⑼參閱第二圖至第六圖’本發明光纖連接頭咖係包括— . $接貝】及冑成型於連接頭1内的至少-條光纖2。 ' ^ _該連接頭1與光纖2的連接結構為至少-個盲孔（圖中未 心7τ〇 ’光纖2成型於盲孔中’所述光纖連接頭丨⑻還包括至 少一個透明異質基板3,透明異質基板3與光纖2一起一體成 型於連接頭1之盲孔—端並和盲孔相隔一間距。 透明異質基板3的設置可增加光纖連接頭1〇〇之光穿透率 貞強度。透明異質基板3之表面可為平面，或具有光學偏折光 線絲之曲面、或菲淫耳（Fresnel)自、或繞射圖案面。透明 異夤基板3的材質可為透明之玻璃或塑膠。 該連接頭1與光纖2的連接結構可為至少一個貫穿孔（圖 中未標示），光纖2成型於貫穿孔中。 所述光纖連接頭1〇〇的製造方法，包括以下步驟：首先， 將至少一條光纖2放入用於成型連接頭丨的模具中設定位置並 進行對位；然後，向模具中注入連接頭丨的原料；最後，待連 接頭1固化成型後，開模即可分離得到光纖連接頭1〇〇。 % 在上述步驟中，亦可將至少一個透明異質基板3與至少一 條光纖2 —起放入用於成型連接頭丨的模具中設定位置並進行 對位，然後，向模具中注入連接頭丨的原料；最後，待連接頭 1固化成型後，開模即可分離得到一含透明異質基板的光纖連 • 接頭100。 上述成型方式中可為灌注成型、射出成型或加壓成形。 綜上所述’本發明光纖連接頭100之將光纖2 一體成型於 在連接頭1内，可省略組裝光纖進入連接頭的步驟，不需另外 施加黏合劑，因此可避免黏合劑固化形變及孔徑公差的問題， 並可有效地避免氣泡的產生，以及減少光纖2裝入連接頭1内 201137422 時產生對位偏移，從而使光纖2準確固定於連接頭1中，而得 到較好之光特性的光纖連接頭100。 【圖式簡單說明】 第一圖係習知技術之光纖連接頭的部分立體圖。_ 第二圖係第一圖所示光纖連接頭另一角度的立體圖。 第三圖係本發明光纖連接頭一實施例的剖視圖。 第四圖係第三圖所示光纖連接頭又一實施例的剖視圖。 第五圖係第三圖所示光纖連接頭於模具中成型時的剖視 圖。 【主要元件符號說明】 連接頭 1 透明異質基板 3 光纖連接頭 100 光纖 2Press 'Fiber is a type of glass fiber or transparent plastic fiber that can transmit light and has a fine shape, including the central portion of the fiber optic filament and the protective layer of the outer layer. When applied to optical communication, the connector is usually assembled at its end to form a fiber connector. Please refer to the first and second figures, which are a headgear of a fiber optic connector and a perspective view of assembling a fiber 7 end to the headgear. The headgear set includes a head cover 6 and a head cover 61, and a through hole 62 is formed in the center of the head cover 6 and the head cover handle 61. The optical fiber 7 can be pierced by the through hole 62 of the head cover 61 and the optical fiber 71 of the optical fiber 7 end is passed through the through hole 62. Therefore, the inner diameter of the through hole is larger than the outer diameter of the optical fiber 7 and the optical fiber 71. Therefore, when assembling, the adhesive 63 is placed on the optical fiber 7 and the optical fiber 71, and then the optical fiber 71 is inserted into the through hole 62 to make the adhesive 63 fix the optical fiber 7 and the optical fiber 71 to the head set. Through hole 62 for use. However, when the optical fiber 7 is assembled, there is a very strict requirement for the positioning of the optical fiber 7, that is, the alignment deviation between the center of the optical fiber 7 and the aperture center of the through hole 62 must be less than 5 um, and the optical fiber 7 is fixed by an adhesive 63 as described above. The connecting head, when the optical fiber thread 71 penetrates into the through hole 62, the adhesive may adhere to one side wall of the through hole 62 due to the capillary phenomenon, and the adhesive may be pushed due to the pushing of the optical fiber 71 when it penetrates. 63 has bubble generation, and since the expansion coefficient of the bubble is larger than that of the solid, it is easy to cause the bubble to push the fiber 71, causing the fiber 71 to be displaced, or being pushed by the bubble to be broken, thereby affecting the light transmission characteristics and lowering. The precision of the fiber 7 and the connection to the 201137422 head and the dispensing of the adhesive 63, the precise and complicated process requires not only the use of high-precision assembly equipment, but also the production cost. SUMMARY OF THE INVENTION The object of the present invention is to provide a fiber optic connector that can eliminate the conventional dispensing process, and which can accurately fix the optical fiber in the connector to obtain better optical characteristics, and a manufacturing method thereof. . To achieve the above object, the present invention provides a fiber optic connector comprising a connector and at least one fiber integrally formed in the connector. The connection structure of the connector to the optical fiber is at least one blind hole, and the optical fiber is formed in the blind hole. The optical fiber connector further includes at least one transparent heterogeneous substrate. The transparent heterogeneous substrate is integrally formed with the optical fiber at one end of the blind hole of the connector and spaced apart from the blind hole. The transparent heterogeneous substrate is made of transparent glass or plastic. The connecting structure of the connector and the optical fiber is at least one through hole, and the optical fiber is formed in the through hole. In order to achieve the above object, the present invention provides a method of manufacturing a fiber optic connector, comprising the steps of: first placing at least one optical fiber into a mold for forming a connector and setting a position and performing alignment; and then injecting a connection into the mold The raw material of the head; finally, after the connector is solidified, the fiber connector can be separated by opening the mold. In summary, the invention integrally forms the optical fiber and the connecting head, and does not need to additionally apply a binder, thereby avoiding the problem of curing deformation and aperture tolerance of the adhesive, and effectively avoiding the generation of bubbles and reducing the fiber loading connection. A misalignment occurs in the head, so that the optical fiber is accurately fixed in the connector, and a fiber connector having better optical characteristics is obtained. [Embodiment] The details of the technical contents, structural features, and the objects and effects of the present invention will be described in detail below with reference to the embodiments. (9) Referring to the second to sixth figures, the optical fiber connector of the present invention includes at least one optical fiber 2 formed in the connector 1. ' ^ _ The connection structure of the connector 1 and the optical fiber 2 is at least one blind hole (the undefined 7τ〇 in the figure is formed in the blind hole] The fiber connector 丨 (8) further includes at least one transparent hetero-substrate 3 The transparent heterogeneous substrate 3 is integrally formed with the optical fiber 2 at the blind hole end of the connector 1 and spaced apart from the blind hole. The arrangement of the transparent heterogeneous substrate 3 can increase the light transmittance 贞 intensity of the fiber connector 1 . The surface of the transparent heterogeneous substrate 3 may be a flat surface, or a curved surface of an optically deflected light ray, or a Fresnel self- or a diffraction pattern surface. The material of the transparent bismuth substrate 3 may be transparent glass or plastic. The connection structure of the connector 1 and the optical fiber 2 may be at least one through hole (not shown), and the optical fiber 2 is formed in the through hole. The manufacturing method of the optical fiber connector 1 includes the following steps: First, At least one optical fiber 2 is placed in a position in the mold for molding the joint head and is aligned; then, the raw material of the joint head is injected into the mold; finally, after the head 1 is solidified, the mold can be separated by opening the mold. Fiber optic connection In the above step, at least one transparent heterogeneous substrate 3 may be placed in a mold for molding the joint head and placed in alignment with at least one optical fiber 2, and then aligned, and then into the mold. The raw material of the joint head is injected; finally, after the head 1 is cured, the mold can be separated to obtain a fiber joint 100 comprising a transparent heterogeneous substrate. The above molding method may be pouring molding, injection molding or pressure forming. In summary, the optical fiber connector 100 of the present invention integrally molds the optical fiber 2 into the connector 1. The step of assembling the optical fiber into the connector can be omitted, and no additional adhesive is needed, thereby preventing the adhesive from being solidified and deformed. The problem of the aperture tolerance can effectively avoid the generation of air bubbles, and reduce the offset of the optical fiber 2 when it is loaded into the connector 1 201137422, so that the optical fiber 2 is accurately fixed in the connector 1 and the light is better. The characteristic optical fiber connector 100. [Simplified description of the drawings] The first figure is a partial perspective view of a conventional fiber optic connector. The second figure is the fiber connection shown in the first figure. The third figure is a cross-sectional view of an embodiment of the fiber optic connector of the present invention. The fourth figure is a cross-sectional view of still another embodiment of the fiber optic connector shown in the third figure. Cross-sectional view of the connector when molded in the mold. [Main component symbol description] Connector 1 Transparent hetero-substrate 3 Optical fiber connector 100 Optical fiber 2