M420737 五、新型說明： 【新型所屬之技術領域】 本創作係-種光源，制是__投影機之 組。 六 【先前技術】 在大型演講或是辦公室簡報場合，投影機是不可或缺的裝 置’然而傳統的投影機體積甚大，不僅占據桌面空間，可攜性 也不佳。針對此問題，各家廠商莫不競相投入大筆研發^於 投影機微型化領域，當前市面上已可見整合在相機或筆記型電 腦上之微投影機。然而微投影機因為體積過小，散熱不易，無 法如大型投職般Μ建高辨的光源，0此微投影機所投射 出來的影像的亮度往往不甚高，使用時必須關閉所在環境的燈 光，或者是哥找較為昏暗的場所。 微投賴目前衫_發光二極斷為其光源，目前常見 使用紅綠藍等三種顏色的二極體混光以得到白光。雖然使用红 綠藍等三種顏色的二極體混光光源設計，但發現光源在傳輸過 程中漏光ϋ成出級率低，而且，習知微投賴的光源係透過 許多凹凸透鏡以及反射鏡的組合來調整光的行進方向，因此， 微投影機的内部元件配置將因此而受到限制，無法將光機機構 做-彈性斯。此外，光縣觸—錢麟會造成—次光耗 損’因此習㈣投影機光源的發光功率也會受到影響而無法有 效提升。 3 【新型内容】 有鐘於此，本創作提出-種微投影機之光源模組，包含殼 體、二以上之光纖、發射端、三以上之點光源、反射鏡、第一 分光鏡及第二分光鏡。 殻體具有-端面與-側面’每—光纖具有__輸人端與一輸 出端’其中一條光纖的輸出端係輕接於殼體的端S，其餘光纖 的輸出端係個別耦接於殼體的側面，所述發射端則是設置於殼 體的％面。點光源係個別輕接於所述光纖的輸入端，其分別用 以發出第一波長、第二波長與第三波長的光。 反射鏡、第一分光鏡與第二分光鏡等均係設置於殼體内， 反射鏡中心點與第一分光鏡中心點的連線係垂直於第一分光 鏡中心點與第二分光鏡令心點的連線。反射鏡係平行於第一分 光鏡，第一分光鏡係垂直於第二分光鏡。 其中，第一波長的光經反射鏡反射後，穿過第一分光鏡而 抵達發射端，第二波長的光穿過第二分光鏡後經第一分光鏡反 射而抵達發射端，第三波長的光經第二分光鏡反射而抵達第一 分光鏡’再經第一分光鏡反射而抵達發射端。 綜上所述，本創作解決了前述習知技術所具有的種種問 題’以下炫進一步以實施例說明本創作如後。 【實施方式】 請參照第1圖，為本創作第一實施例之示意圖，揭露一種 微投影機之光源模組1，包含殼體ίο、三以上之光纖η、發 射端12、第—點光源131、第二點光源132、第三點光源133、 反射鏡14、第一分光鏡15及第二分光鏡16。 设體10具有端面1〇1與側面1〇2，每一光纖η具有輸入 端與輸出端112，其中一條光纖u的輸出端lu係耦接於 喊體10的端面101，其餘光纖u的輸出端lu係個別耦接於 殼體10的側面102,所述發射端12則是設置於殼體1〇的端面 1〇1。第一點光源13卜第二點光源132及第三點光源133係個 別輕接於所述光纖11的輸入端112,其分別用以發出第一波長 的光91、第二波長的光92與第三波長的光93。 反射鏡14、第一分光鏡15與第二分光鏡16等均係設置於 殼體10内，反射鏡14中心點與第一分光鏡15中心點的連線 係垂直於第一分光鏡15中心點與第二分光鏡16中心點的連 線。反射鏡14係平行於第一分光鏡15，第一分光鏡15係垂直 於第二分光鏡16。 其中，第一波長的光91經反射鏡14反射後，穿過第一分 光鏡15而抵達發射端12，第二波長的光92穿過第二分光鏡 16後經過第一分光鏡15的反射而抵達發射端12,第三波長的 光93經第二分光鏡16反射而抵達第一分光鏡15，再經第一 分光鏡15的反射而抵達發射端12。因此，第一波長的光91、 第二波長的光92與第三波長的光93所走的路徑在發射端12 與第一分光鏡15之間已完全重合，因而三種波長的光在發射 前已經均勻混合為白光，而可作為微投影機的白光光源。 M420737 第一分光鏡15係透過鍍膜的方式，使其表面鍍上一層容 許第一波長的光91通過’但會高度反射第二波長的光92與第 三波長的光93的鍍膜；第二分光鏡16係在表面鍍上一層容許 第二波長的光92通過，但會高度反射第三波長的光93的鍍 膜。至於反射鏡14則是在表面鍍上一層可高度反射第一波長 的光91的鍍膜。前述鍍膜技術為光學領域的通常知識，於本 創作說明不再重複贅述。 請參照第2圖，為本創作之TIR透鏡與Fresnd透鏡示意 圖。為了進一步提高微投影機的發光效率，可進一步在每一個 點光源（圖式係以第一點光源113為例）與光纖u的輸入端 112之間设置全内反射透鏡81 (T〇tai ❿❿此如iens， TIRlens)與非》圼爾透鏡82 (Fresnellens)。其中，全内反射透 鏡81係用以收集和初步聚合自第一點光源113所發出的光； 菲涅爾透鏡82則是進一步將通過全内反射透鏡81的光線進一 步聚焦。由於光線在進入光纖U的輸入端U2之前已被聚焦， 亦即能量被集中，因此可提高發光效率。 點光源可以是雷射二極體或發光二極體，當點光源係採用 發光二極體時，可透過二極體封裝製程，使其發光角度小於 30。，如此一來點光源所發出的光形可更為集中，有助於提升 發光效率。針對此種點光源，光纖11係採用高純度石英玻璃 抽絲材質多股光纖’直徑係在〇.5至10 mm之範圍中。當點光 源係採用雷射二極體時，所使用的光纖11係採用高純度石英 6 玻㈣抽絲材質單股光纖，直徑係在0.5至5 mm之間。 本實把例中，第一波長係在6】〇腦至650 nm之間，第二 波長係在500 nm至600 nm之間，第三波長係在45〇则至49〇 nm之間，亦即其分別為紅光、綠光及藍光。 此外，本創作並雜定—定魏使用三條光纖及三個點光 源。由於不_色的發光二極體，其發光神並不相同，因此 可以調整不義色的發光二極體的使聽量，以使白光的演色 性更佳。 雖然本創制肋喊已触紐實猶彳縣如上，然其 並非用以蚊本創作’任何熟f此技藝者，在顿離本創作之 精神所作些許之更動與潤飾’皆應涵蓋於本創作的範嘴内，因 此本創作之紐顧當視_之申請專·_界定者為準。 M420737 【圖式簡單說明】 第1圖為本創作之第一實施例之示意圖。 第2圖為本創作之TIR透鏡與Fresnel透鏡示意圖。 【主要元件符號說明】 I ......微投影機的光源模組 10......殼體 101 .....端面 102 .....侧面 II ......光纖 III .....輸出端 112.....輸入端 12......發射端 131 .....第一點光源 132 .....第二點光源 133 .....第三點光源 14 ......反射鏡 15 ......第一分光鏡 16 ......第二分光鏡 81 ......全内反射透鏡 82 ......菲涅爾透鏡 91 ......第一波長的光 92 ......第二波長的光 M420737 93 第三波長的光M420737 V. New description: [New technical field] This creation is a kind of light source, which is a group of __ projectors. Six [Prior Art] In large speech or office briefings, the projector is an indispensable device. However, the traditional projector is very large, not only occupying the desktop space, but also having poor portability. In response to this problem, various manufacturers are not competing to invest in large-scale research and development. In the field of projector miniaturization, micro-projectors integrated in cameras or notebook computers are currently available on the market. However, because the micro-projector is too small, the heat dissipation is not easy, and it is impossible to build a high-resolution light source like a large-scale job. The brightness of the image projected by the micro-projector is often not high, and the lighting of the environment must be turned off when using it. Or maybe the brother is looking for a darker place. The micro-projection of the current shirt _ light-emitting diode is broken as its light source, and it is common to use a mixture of three colors of red, green and blue to obtain white light. Although the design of the two-color dichroic light source of red, green and blue is used, it is found that the light source has a low rate of light leakage during transmission, and the light source of the conventional micro-projection is transmitted through many concave-convex lenses and mirrors. The combination is used to adjust the direction of travel of the light, and therefore, the internal component configuration of the micro projector will be limited thereby, and the optical mechanism cannot be made elastic. In addition, Guangxian Touch-Qinlin will cause “secondary light loss”. Therefore, the luminous power of the projector light source will be affected and cannot be effectively improved. 3 [New content] There is a clock here, this creation proposes a light source module of a micro-projector, including a housing, two or more optical fibers, a transmitting end, three or more point light sources, a mirror, a first beam splitter and a Dichotomoscope. The housing has an end face and a side face. Each fiber has an __input end and an output end. The output end of one of the optical fibers is lightly connected to the end S of the housing, and the output ends of the remaining optical fibers are individually coupled to the shell. The side of the body, the emitting end is disposed on the % face of the housing. The point sources are individually lightly coupled to the input ends of the fibers for respectively emitting light of a first wavelength, a second wavelength, and a third wavelength. The mirror, the first beam splitter and the second beam splitter are all disposed in the casing, and the connection between the center point of the mirror and the center point of the first beam splitter is perpendicular to the center point of the first beam splitter and the second beam splitter The connection of the heart. The mirror is parallel to the first beam splitter, and the first beam splitter is perpendicular to the second beam splitter. Wherein, the light of the first wavelength is reflected by the mirror, passes through the first beam splitter and reaches the transmitting end, and the light of the second wavelength passes through the second beam splitter and is reflected by the first beam splitter to reach the transmitting end, the third wavelength The light is reflected by the second beam splitter and reaches the first beam splitter' and then reflected by the first beam splitter to reach the emitting end. In summary, the present invention solves the problems of the prior art described above. [Embodiment] Please refer to FIG. 1 , which is a schematic diagram of a first embodiment of the present invention, and discloses a light source module 1 of a micro projector, comprising a housing ίο, three or more optical fibers η, a transmitting end 12, and a first point light source. 131. The second point light source 132, the third point light source 133, the mirror 14, the first beam splitter 15 and the second beam splitter 16. The body 10 has an end surface 1〇1 and a side surface 1〇2, and each of the optical fibers η has an input end and an output end 112. The output end of one optical fiber u is coupled to the end surface 101 of the shim body 10, and the output of the remaining optical fibers u The end portion is integrally coupled to the side surface 102 of the housing 10, and the transmitting end 12 is disposed at the end surface 1〇1 of the housing 1〇. The first point light source 13 and the second point source 132 and the third point source 133 are individually lightly connected to the input end 112 of the optical fiber 11 for respectively emitting the light 91 of the first wavelength and the light 92 of the second wavelength. Light 93 of the third wavelength. The mirror 14, the first beam splitter 15 and the second beam splitter 16 are disposed in the casing 10, and the connection between the center point of the mirror 14 and the center point of the first beam splitter 15 is perpendicular to the center of the first beam splitter 15 The point is connected to the center point of the second beam splitter 16. The mirror 14 is parallel to the first beam splitter 15, and the first beam splitter 15 is perpendicular to the second beam splitter 16. The light 91 of the first wavelength is reflected by the mirror 14 and passes through the first beam splitter 15 to reach the transmitting end 12. The light 92 of the second wavelength passes through the second beam splitter 16 and passes through the reflection of the first beam splitter 15 . Upon reaching the transmitting end 12, the light 93 of the third wavelength is reflected by the second beam splitter 16 to reach the first beam splitter 15 and then reflected by the first beam splitter 15 to reach the transmitting end 12. Therefore, the path of the first wavelength of light 91, the second wavelength of light 92 and the third wavelength of light 93 is completely coincident between the transmitting end 12 and the first beam splitter 15, so that the three wavelengths of light are before the emission. It has been uniformly mixed into white light and can be used as a white light source for micro projectors. M420737 The first beam splitter 15 is coated with a layer of light that allows the first wavelength of light 91 to pass through but 'highly reflects the second wavelength of light 92 and the third wavelength of light 93; the second splitting The mirror 16 is plated with a coating that allows light 92 of the second wavelength to pass but reflects the light 93 of the third wavelength. As for the mirror 14, the surface is plated with a coating film which can highly reflect the first wavelength of light 91. The aforementioned coating technique is a common knowledge in the field of optics, and will not be repeated here. Please refer to Figure 2 for a schematic diagram of the TIR lens and Fresnd lens. In order to further improve the luminous efficiency of the micro projector, a total internal reflection lens 81 (T〇tai ❿❿) may be further disposed between each point light source (illustrated by the first point light source 113 as an example) and the input end 112 of the optical fiber u. This is such as iens, TIRlens) and non-"Fresnellens 82" (Fresnellens). The total internal reflection lens 81 is used to collect and initially polymerize the light emitted from the first point source 113; the Fresnel lens 82 further focuses the light passing through the total internal reflection lens 81. Since the light is focused before entering the input end U2 of the optical fiber U, that is, the energy is concentrated, the luminous efficiency can be improved. The point source may be a laser diode or a light-emitting diode. When the point source is a light-emitting diode, the diode can be packaged through a diode package to have an illumination angle of less than 30. In this way, the light shape emitted by the point source can be more concentrated, which helps to improve the luminous efficiency. For such a point source, the optical fiber 11 is made of a high-purity quartz glass, and the multi-strand fiber diameter is in the range of 〇.5 to 10 mm. When the point source is a laser diode, the fiber 11 used is a high-purity quartz 6-glass (four)-spun single-strand fiber with a diameter between 0.5 and 5 mm. In the present example, the first wavelength is between 6] camphor to 650 nm, the second wavelength is between 500 nm and 600 nm, and the third wavelength is between 45 〇 and 49 〇 nm. That is, they are red, green and blue. In addition, this creation is mixed with Ding Wei using three optical fibers and three point sources. Since the light-emitting diodes of the non-color are different, the illuminating gods of the uncharacteristic color can be adjusted to make the color rendering of the white light better. Although the creation of the ribs has been touched, it is not the same as the county, but it is not used for the creation of mosquitoes. Anyone who is familiar with this skill, some of the changes and refinements in the spirit of this creation should be covered in this creation. In the mouth of the van, the definition of this creation is subject to the definition of the application. M420737 [Simple description of the drawing] Fig. 1 is a schematic view showing the first embodiment of the creation. Figure 2 is a schematic diagram of the TIR lens and Fresnel lens of the present invention. [Description of main component symbols] I ... light source module 10 of micro projector... housing 101 ..... end face 102 ..... side II ...... Optical fiber III ..... output terminal 112..... input terminal 12 ... transmitting terminal 131 ..... first point light source 132 ..... second point light source 133 ... .. third point light source 14 ... mirror 15 ... first beam splitter 16 ... second beam splitter 81 ... total internal reflection lens 82 . ..... Fresnel lens 91 ... light of the first wavelength 92 ... light of the second wavelength M420737 93 light of the third wavelength