1345621 100年04月οι日核正替换頁 六、發明說明： 【發明所屬之技術領域】 [0001] 本發明涉及一種導光裝置及其應用之發光裝置。 【先前技術】 [0002] 在一些電子產品中，常要使用導光柱來控制光源發出之 光線。在這些導光柱中，常採用拋光塑膠鏡作為反射鏡 來改變光線傳播方向。但是，由於塑膠本身材質與顏色 等因素之影響，使得反射鏡之反射率不高，許多光能被 吸收，因此不僅導致出光亮度不高，而且還會產生發熱 問題。 【發明内容】 [0003] 有鑒於此，有必要提供一種出.，光效高:^導光裝置及其 應用之發光裝置。 [0004] 一種導光裝置，其包括一具有鋸齒結構之入射面、一反 射面及一出射面。所述入射面、反射面及出射面依次首· 尾相接。所述反射面為一曲面。所述入射面包括至少兩 個用於將入射光線折射至所述反射，面之斜面，每兩個斜 - 1 一 , ' 面之間通過一連接面進行連接，且所述斜面之面積大於 所述連接面之面積。從所述出射面指向所述反射面之視 角看，所述至少兩個斜面向所述導光裝置内部傾斜。 [0005] —種發光裝置，其包括至少一個具有光源及一導光裝置 。所述導光裝置包括一具有鋸齒結構之入射面、一反射 面及一出射面。所述入射面、反射面及出射面依次首尾 相接。所述反射面為一曲面。所述入射面包括至少兩個 用於將入射光線折射至所述反射面之斜面，每兩個斜面 097130320 表單編號A0101 第3頁/共15頁 1003113926-0 1345621 100年04月01日核正替换頁 之間通過一連接面進行連接，且所述斜面之面積大於所 述連接面之面積。從所述出射面指向所述反射面之視角 看，所述至少兩個斜面向所述導光裝置内部傾斜。所述 光源設於所述導光裝置之入射面之側方，用於向所述導 光裝置發射光線。 [0006] 相較於先前技術，所述導光裝置及其應用之發光裝置在 所述入射面設置至少兩個向導光裝置内部傾斜之斜面， 並設置反射面為曲面，以提高大部分光線進入所述反射 面之入射角，從而使從所述反射面反射到所述出射面之 反射光增加，提高了出光效率。 [0007] 【實施方式】 下面將結合附圖 描述如下。 ，舉以下較_實’•轉身答圖式詳細 [0008] 請參閱圖1至圖3，為本發明第一實施方式提供之導光裝 置1。該導光裝置1為透光材料製，戍之鮮三角形棱柱，其 包括一入射面10、一反射面12及一出射面14。所述入射 面10、反射面12及出射面14依次首尾相接。 [0009] 所述入射面10連接在所述出射面14與反射面12之間，與 所述出射面14大致垂直，並與所述反射面12呈一傾角。 所述入射面10上設置有鋸齒結構，其包括至少兩個用於 將入射光線折射至所述反射面12之斜面。在本實施方式 中，所述入射面10包括四個斜面100、102、104、106。 所述四個斜面100、102、104、106之間通過連接面101 、103、105進行連接，且每個斜面之面積大於所述連接 097130320 面之面積。所述從所述出射面14指向所述反射面12之視 表單編號A0101 第4頁/共15頁 1003113926-0 1345621 100年04月01日按正替換頁 角看，所述四個斜面100、102、104、106向所述導光裝 置1内部傾斜。該四個斜面100、102、104、106可使與 之成正入射角之入射光線經其折射至所述反射面12之入 射角大於該入射光線未經折射直接到所述反射面12之入 射角。所述正入射角是指位於介面法線左側之入射光線 所具有之入射角。反之，則為負入射角。請參閱圖3，一 與斜面104成正入射角之光線L1，其經斜面104折射至所 述反射面12之入射角1大於其未經折射直接到該反射面12 之入射角2。先前技術中，一般將光源正對導光裝置之入 射面設置。因此使用具有鋸齒結構之入射面10之導光裝 置1時，可使相對於所述四姆斜面100、102、104、106 具有正入射角之入射光線多於〕具有負入’射角之光線，從 而使大部分入射光線經該四個斜面100、102、104、106 折射後到所述反射面12之入射角變大，增加反射光之能 量。優選地，該鑛齒結構為菲淫爾（F r e s n e 1 )結構。 [0010] 所述反射面12相對於所述入射面10與出射面14傾斜設置 ，用於將投射在該反射面12上之光線反射並從所述出射 面14射出。優選地，所述反射面12為一弧形曲面，其曲 率是使從所述入射面10折射至該反射面12之光線相對於 該反射面12具有較大之入射角，以增加反射光。可多次 改變該反射面12之曲率，並測量對應之所述出射面14之 出光量，選取所述出射面14之出光量最大時之曲率作為 該反射面12之最終曲率。 [0011] 所述出射面14為一平面，從所述入射面10與反射面12入 射及反射之光線經由該出射面14射出。所述出射面14亦 097130320 表單編號A0101 第5頁/共15頁 1003113926-0 [0012] [0012] 1345621 100年04月01日梭正 可為一曲面或者其它形狀。 所述導光裝置1優選地採用透光且具有較高折射率之樹脂 、塑勝、高分子材料或者玻璃製成。 [0013] 請參閱圖4，為本發明第二實施方式提供之導光裝置2， 其與第一實施方式提供之導光裝置丨之不同之處在於，所 述出射面24設有一透光之柱體26，所述出射面24上未與 所述柱體26連接之部位塗有阻光層28。從所述入射面2〇 進入所述導光裝置2之光線，經該入射面2〇之折射及反射 面22之反射後，從所述柱體26射出。該柱體26使該導光 裝置2出光面積較大 燈之作用。 好地起到指示 •r:令 [0014] 請參閱圖5，為利用圖1之導〔光裝置裝置3，其包 括一上述導光裝置1及至少一個光源4。 [0015] [0016] [0017] 097130320 所述光源4設於所述導光裝置丨之入射面1〇之一側，該光 源4發射光線至所述導光襞置丨之入射面1〇 ^該光源4可以 為發光二極體。 所述光源4發出之光線被所述導光裝置丨之入射面1〇折射 ，其中一部分被折射至所述出射面14，另一部分被折射 至所述反射面12，並由所述反射面12反射至所述出射面 14。該光源4發出之光線最終從所述出射面14射出。 相較於先前技術’所述導光裝置及其應用之發光裝置在 所述入射面設置至少兩個向導光裝置内部傾斜之斜面’ 並設置反射面為曲面，以提高大部分光線進入所述反射 面之入射角’從而使從所述反射面反射到所述出射面之 表單編號A0101 第6頁/共〗5頁 1003113926-0 1345621 100年04月01日修正替換頁 反射光增加，提高了出光效率。 [0018] 綜上所述，本發明符合發明專利要件，爰依法提出專利 申請。惟，以上所述者僅為本發明之較佳實施方式，本 發明之範圍並不以上述實施方式為限，舉凡熟悉本案技 藝之人士援依本發明之精神所作之等效修飾或變化，皆 應涵蓋於以下申請專利範圍内。 【圖式簡單說明】 [0019] 圖1為本發明第一實施方式提供之導光裝置立體圖； [0020] 圖2為圖1中之導光裝置之側視圖； [0021] 圖3為圖1中之導光裝置之工作狀‘態示意圖’ [0022] 圖4為本發明第二實施方式提·供之尊光·裝^置-示意圖； [0023] 圖5為應用圖1中之導光裝置之發光裝置示意圖。 【主要元件符號說明】 [0024] 導光裝置：1,2 , [0025] 入射面：10, 20 [0026] 斜面：1 00, 1 02, 1 04, 1 06 [0027] 連接面：101，103, 105 [0028] 反射面：12, 22 [0029] 出射面：14, 24 [0030] 柱體：26 [0031] 阻光層：28 097130320 表單編號A0101 第7頁/共15頁. 1003113926-0 1345621 __ 100年04月01日核正替换頁 [0032] 發光裝置：3 [0033] 光源：4 mm 097130320 表單編號A0101 第8頁/共15頁 1003113926-01345621 100th April οι 日核正正换页 6. Invention Description: [Technical Field] [0001] The present invention relates to a light guiding device and a lighting device therefor. [Prior Art] [0002] In some electronic products, a light guide column is often used to control the light emitted by the light source. In these light guides, a polished plastic mirror is often used as a mirror to change the direction of light propagation. However, due to factors such as the material and color of the plastic, the reflectivity of the mirror is not high, and many of the light energy is absorbed, so that not only the brightness of the light is not high, but also the problem of heat generation. SUMMARY OF THE INVENTION [0003] In view of the above, it is necessary to provide a light-emitting device that has high light efficiency: a light guiding device and its application. A light guiding device includes an incident surface having a sawtooth structure, a reflecting surface, and an emitting surface. The incident surface, the reflective surface, and the exit surface are connected in series with each other. The reflecting surface is a curved surface. The incident surface includes at least two slanting surfaces for refracting incident light rays to the surface, and each of the two slanting surfaces is connected by a connecting surface, and the area of the inclined surface is larger than The area of the joint surface. The at least two oblique faces are inclined toward the inside of the light guiding device as viewed from a viewing angle of the exit surface toward the reflecting surface. [0005] A light emitting device comprising at least one light source and a light guiding device. The light guiding device comprises an incident surface having a sawtooth structure, a reflecting surface and an emitting surface. The incident surface, the reflective surface, and the exit surface are sequentially connected end to end. The reflecting surface is a curved surface. The incident surface includes at least two inclined surfaces for refracting incident light to the reflecting surface, each two inclined surfaces 097130320 Form No. A0101 Page 3 / Total 15 Page 1003113926-0 1345621 100 April 01 The pages are connected by a connecting surface, and the area of the inclined surface is larger than the area of the connecting surface. The at least two oblique faces are inclined toward the inside of the light guiding device from a viewing angle of the exit surface toward the reflecting surface. The light source is disposed at a side of the incident surface of the light guiding device for emitting light to the light guiding device. [0006] Compared with the prior art, the light guiding device and the lighting device thereof are disposed on the incident surface with at least two inclined inclined surfaces of the guiding light device, and the reflecting surface is curved to improve most light entering. The incident angle of the reflecting surface increases the reflected light reflected from the reflecting surface to the exit surface, thereby improving the light-emitting efficiency. [Embodiment] Hereinafter, the following will be described with reference to the drawings. The following is a more detailed description of the light guide device 1 according to the first embodiment of the present invention. The light guiding device 1 is made of a light transmissive material, and has a triangular prism which includes an incident surface 10, a reflecting surface 12 and an emitting surface 14. The incident surface 10, the reflecting surface 12, and the exit surface 14 are sequentially connected end to end. The incident surface 10 is connected between the exit surface 14 and the reflective surface 12, is substantially perpendicular to the exit surface 14, and is inclined at an angle to the reflective surface 12. The entrance face 10 is provided with a sawtooth structure comprising at least two ramps for refracting incident light to the reflective face 12. In the present embodiment, the entrance face 10 includes four ramps 100, 102, 104, 106. The four slopes 100, 102, 104, 106 are connected by joint faces 101, 103, 105, and the area of each slope is larger than the area of the joint 097130320. The view form number A0101 from the exit surface 14 directed to the reflecting surface 12, page 4/15 pages 1003113926-0 1345621, April 01, 100, according to the positive replacement page corner, the four slopes 100, 102, 104, 106 are inclined toward the inside of the light guiding device 1. The four slopes 100, 102, 104, 106 can cause the incident angle of the incident light rays at a normal incident angle to be refracted to the reflection surface 12 to be larger than the incident angle of the incident light rays directly to the reflection surface 12 . The normal incidence angle refers to the incident angle of incident light rays located to the left of the interface normal. Otherwise, it is a negative incident angle. Referring to Fig. 3, a light ray L1 at a normal incidence angle with the inclined surface 104 is refracted by the inclined surface 104 to an incident angle 1 of the reflecting surface 12 which is larger than an incident angle 2 thereof which is not refracted directly to the reflecting surface 12. In the prior art, the light source is generally disposed opposite the entrance face of the light guiding means. Therefore, when the light guiding device 1 having the incident surface 10 of the sawtooth structure is used, the incident light having a normal incident angle with respect to the four inclined surfaces 100, 102, 104, 106 can be made more than the light having a negative incident angle. Therefore, the incident angle of most incident light rays refracted through the four slopes 100, 102, 104, 106 to the reflection surface 12 becomes large, and the energy of the reflected light is increased. Preferably, the mineral tooth structure is a F s e e n 1 structure. [0010] The reflecting surface 12 is inclined with respect to the incident surface 10 and the exit surface 14 for reflecting and projecting light rays projected on the reflecting surface 12 from the exit surface 14. Preferably, the reflecting surface 12 is a curved curved surface whose curvature is such that the light refracted from the incident surface 10 to the reflecting surface 12 has a larger incident angle with respect to the reflecting surface 12 to increase the reflected light. The curvature of the reflecting surface 12 may be changed a plurality of times, and the amount of light corresponding to the exit surface 14 may be measured, and the curvature at which the amount of light emitted from the exit surface 14 is the largest may be selected as the final curvature of the reflecting surface 12. [0011] The exit surface 14 is a flat surface, and light incident and reflected from the incident surface 10 and the reflective surface 12 is emitted through the exit surface 14. The exit surface 14 is also 097130320 Form No. A0101 Page 5 of 15 1003113926-0 [0012] [0012] 1345621 The shuttle can be a curved surface or other shape. The light guiding device 1 is preferably made of a resin that is light transmissive and has a high refractive index, a plastic material, a polymer material, or glass. [0013] Please refer to FIG. 4, which is a light guiding device 2 according to a second embodiment of the present invention, which is different from the light guiding device 提供 provided by the first embodiment in that the exit surface 24 is provided with a light transmitting The pillar 26 is coated with a light blocking layer 28 on a portion of the exit surface 24 that is not connected to the pillar 26. The light entering the light guiding means 2 from the incident surface 2 is reflected by the refracting surface of the incident surface 2 and reflected from the reflecting surface 22, and then emitted from the column 26. The cylinder 26 causes the light guiding device 2 to function as a light-emitting area. Please refer to Fig. 5 for the use of the light device device 3 of Fig. 1 including a light guiding device 1 and at least one light source 4. [0017] 097130320 The light source 4 is disposed on one side of the incident surface 1 of the light guiding device, and the light source 4 emits light to the incident surface of the light guiding device 1〇 The light source 4 can be a light emitting diode. The light emitted by the light source 4 is refracted by the incident surface 1 of the light guiding device, a part of which is refracted to the exit surface 14, and another portion is refracted to the reflective surface 12, and the reflective surface 12 is Reflected to the exit surface 14. The light emitted by the light source 4 is finally emitted from the exit surface 14. Compared with the prior art, the light guiding device and the light emitting device thereof are provided with at least two inclined inclined surfaces of the guiding light device on the incident surface and the reflecting surface is curved to increase most of the light entering the reflection. The incident angle of the face is such that the form reflected from the reflecting surface to the exit surface is numbered A0101. Page 6/Total 5 pages 1003113926-0 1345621 The correction of the replacement page is increased by the light of the replacement page, and the light is increased. effectiveness. [0018] In summary, the present invention complies with the requirements of the invention patent and submits a patent application according to law. However, the above description is only the preferred embodiment of the present invention, and the scope of the present invention is not limited to the above-described embodiments, and equivalent modifications or variations made by those skilled in the art in light of the spirit of the present invention are It should be covered by the following patent application. BRIEF DESCRIPTION OF THE DRAWINGS [0019] FIG. 1 is a perspective view of a light guiding device according to a first embodiment of the present invention; [0020] FIG. 2 is a side view of the light guiding device of FIG. 1; [0021] FIG. [0022] FIG. 4 is a schematic view of a second embodiment of the present invention, which is provided with a light-receiving device; [0023] FIG. Schematic diagram of the illumination device of the device. [Description of main component symbols] [0024] Light guiding device: 1, 2, [0025] Incident surface: 10, 20 [0026] Bevel: 1 00, 1 02, 1 04, 1 06 [0027] Connecting surface: 101, 103, 105 [0028] Reflecting surface: 12, 22 [0029] Exit surface: 14, 24 [0030] Column: 26 [0031] Light blocking layer: 28 097130320 Form number A0101 Page 7 of 15 1003113926- 0 1345621 __ April 01, 100 Nuclear replacement page [0032] Light-emitting device: 3 [0033] Light source: 4 mm 097130320 Form number A0101 Page 8 of 15 1003113926-0