201222135 六、發明說明： 【發明所屬之技術領域】 本發明關於一種螢光粉色輪，特別是關於一種可提高收光效 率的螢光粉色輪及應用該螢光粉色輪的投影機。 【先前技術】201222135 VI. Description of the Invention: [Technical Field] The present invention relates to a fluorescent pink wheel, and more particularly to a fluorescent pink wheel capable of improving light collection efficiency and a projector using the fluorescent pink wheel. [Prior Art]
現在越來越多投影機利用LED(light Emitting Diode，發光二極 體)作為光源，其中有一種方式是利用激發光源激發螢光粉發出 紅、綠或藍等不同波長的光來作為光源使用。這種投影機用到的 色輪一般是在環形區上塗有可被LED激發出紅、綠或藍光的螢光 粉，當色輪工作時’LED燈照射螢光粉色輪激發出紅、綠、藍光， 投影機就利用激發出的光進行工作。 Φ 请參見圖1A和目1B，圖ία和圖1B為傳統的反射式螢光米 色輪1的結構示賴，其中圖出對應於圖u在c_c方向的橫袭 面。反射式螢光粉色輪1包含高反射率基板1〇和螢光部u，榮4 部U環形設置於基板H)上。基板1〇可以通過馬達12驅動而衣 轉。反射式螢絲色輪1 -般是將螢光粉塗布在高反射率金屬相 上，激發統（圖未示）從前方沿χ方向激發螢光部n，產生合 絲經由基板10反射從前方發出。請參見圖2A和圖2B W 和圖邡為傳統的透射式螢光粉色輪2的結構示意圖，其中圖2i 2A在1^方向的橫截面。透射式螢光粉色輪2包含这 ίΪίί 光部21環形設置於基板2〇上。勒 J顧方沿Υ方向激發勞光部21，產生的光線直接從前么 【發明内容】 201222135 針對上述技術問題，本發明通過增加聚光部的設計來達到改 變出光角度，提高收光效率的目的。 本發明提供的螢光粉色輪包含基板、螢光部和聚光部。螢光 部環形設置於基板上。聚光部鄰接於螢光部，該聚光部用以會聚 經該螢光部激發後產生的光線。 根據本發明所述的螢光粉色輪，聚光部為包覆於螢光部的環氧 樹脂（EPOXY)層。根據本發明所述的螢光粉色輪，基板為透光 性基板。 根據本發明所述的螢光粉色輪，基板為高反射率基板。在本發 _ 明之一較佳實施例中，該基板為金屬板。根據本發明所述的螢光 粉色輪’聚光部包含形成於基板上的凹槽’螢光部設置於該凹槽 内，所述經該螢光部激發後產生的光線經該基板反射出該凹槽。 在^發明之另一較佳實施例中，螢光部完全填充於凹槽内，且該 螢光部的上表面平齊於基板的上表面。在本發明之再一較佳實施 例中’凹槽為球面或拋物面的弧形槽。 本發明還提供-種投影機’該投影機包含上述的螢光粉色輪。 通過本發_ §絲色輪’可以提高整個投影機祕的光源利 t傘。 士根據本發明所述的螢光粉色輪，聚光部為包覆於螢光部的環氧 ，脂層，該聚光部還用以使激發光線聚焦於該螢光部，且所述經 "亥螢光部激發後產生的光線經基板反射後再次穿過該聚光部。 【實施方式】 解，茲配合實施例詳細說明如下。 ，使對本發明的目的、構造、特徵、及其功能有進一步的瞭Nowadays, more and more projectors use LEDs (light emitting diodes) as light sources. One way is to use the excitation light source to excite the fluorescent powder to emit light of different wavelengths such as red, green or blue as a light source. The color wheel used in such a projector is generally coated with a fluorescent powder which can be excited by the LED to emit red, green or blue light. When the color wheel is working, the LED light illuminates the fluorescent pink wheel to excite red and green. In blue light, the projector works with the light that is excited. Φ Referring to Fig. 1A and Fig. 1B, Fig. 1A and Fig. 1B show the structure of a conventional reflective fluorescent beige wheel 1, in which the transverse plane corresponding to Fig. u in the c_c direction is illustrated. The reflective fluorescent pink wheel 1 includes a high reflectivity substrate 1A and a fluorescent portion u, and a U-shaped U-ring is disposed on the substrate H). The substrate 1 can be driven by the motor 12 to be turned. The reflective filament color wheel 1 generally applies the phosphor powder to the high reflectivity metal phase, and the excitation system (not shown) excites the phosphor portion n from the front in the x direction, and the resultant filament is reflected from the substrate 10 from the front. issue. 2A and 2B and FIG. 2B is a schematic structural view of a conventional transmissive fluorescent pink wheel 2, wherein FIG. 2i 2A is a cross section in the 1^ direction. The transmissive fluorescent pink wheel 2 includes the illuminating portion 21 disposed on the substrate 2A. Le J Gu Fang inspires the light-emitting part 21 along the Υ direction, and the generated light is directly from the front. [Invention] 201222135 In view of the above technical problems, the present invention achieves the purpose of changing the light-emitting angle and improving the light-receiving efficiency by increasing the design of the concentrating portion. . The fluorescent pink wheel provided by the present invention comprises a substrate, a fluorescent portion and a concentrating portion. The fluorescent portion is annularly disposed on the substrate. The concentrating portion is adjacent to the illuminating portion for concentrating the light generated by the illuminating portion. According to the fluorescent pink wheel of the present invention, the concentrating portion is an epoxy resin (EPOXY) layer coated on the fluorescent portion. According to the fluorescent pink wheel of the present invention, the substrate is a light-transmitting substrate. According to the fluorescent pink wheel of the present invention, the substrate is a high reflectivity substrate. In a preferred embodiment of the present invention, the substrate is a metal plate. The fluorescent pink wheel 'concentrating portion according to the present invention includes a groove formed on the substrate. The fluorescent portion is disposed in the groove, and the light generated by the fluorescent portion is reflected by the substrate. The groove. In another preferred embodiment of the invention, the phosphor portion is completely filled in the recess, and the upper surface of the phosphor portion is flush with the upper surface of the substrate. In still another preferred embodiment of the invention, the groove is a spherical or parabolic curved groove. The present invention also provides a projector that includes the above-described fluorescent pink wheel. Through the hair _ § silk wheel, you can improve the light source of the entire projector. According to the fluorescent pink wheel of the present invention, the concentrating portion is an epoxy and a lipid layer coated on the fluorescent portion, and the concentrating portion is further configured to focus the excitation light on the fluorescent portion, and the illuminating portion is " The light generated after the excitation of the luminescent portion passes through the substrate and passes through the concentrating portion again. [Embodiment] The solution will be described in detail below in conjunction with the embodiments. Further to the object, structure, features, and functions of the present invention
土板·3ϋ上，可參見圖1A或圖2A。聚光部33鄰 聚光部33用时驗螢光部31激碰產生的光 201222135 線。在-實施例中，聚光部33為包覆於螢光部31的 'EPOXY}層。在本發明的一較佳實施例中，環氧樹脂層截: 形狀為中間厚、兩側薄，以達到凸透鏡的作用。 上述聚光部的f作方法可與LED封裝方式難，先 脂填入二環形凹槽治具内’再將塗布好螢光部的色輪覆蓋^，待 -者固定後取出即可。除此之外，也可以利用光學膠將 枯貼於螢光部上’本發明並;^此為限。需魏明的是 ^ 所述^螢光部可以是單色，也可以是多種顏色（如紅綠藍〉的組 s，這些不同顏色的螢光區域一般以環形排列形成該螢光部。 請結合參見圖4A，圖4A為本發明一實施例的透射式螢光粉 色輪4的工作原理圖。螢光粉色輪4包含的基板4〇為透光性基板， 例如玻璃或其他透明基板。在該實施例中，藉由聚光部43的形狀， 可以改變經螢光部41激發後產生的光線的出光角度，提高收光效 率。 請結合參見圖4B，圖4B為本發明一實施例的反射式螢光粉 色輪5的工作原理圖。螢光粉色輪5包含的基板5〇為高反射率基 板，例如金屬板或其他反射板。在該實施例中，藉由聚光部53的 形狀，可以改變經螢光部51激發後產生的光線的出光角度，提高 收光效率。除此之外，在該實施例中，聚光部53還用以使激發光 線更t焦於螢光部51，從而提升激發效率。亦即激發光線先通過 聚光部53聚焦於螢光部51，然後所述經螢光部51激發後產生的 光線經基板50反射後再次穿過聚光部53，達到在不同方向上兩次 會聚光線的技術效果。 睛參見圖5’圖5為本發明另一實施例的螢光粉色輪6的結構 示意圖。螢光粉色輪6的聚光部設計不同於上述實施例，本實施 例主要是利用改變色輪基板的形狀，來達到提高螢光粉色輪效率 的目的。螢光粉色輪6包含基板60、螢光部61和聚光部63。螢 光部61環形設置於基板60上，可參見圖1A或圖2A。聚光部63 鄰接於螢光部61，聚光部63用以會聚經螢光部61激發後產生的 201222135 部63為局反射率基板’例如金屬板或其他反射板。聚光 ^，二^成於基板6〇上的凹槽631，螢光部61設置於凹槽631 ^螢光部61激發後產㈣光驗基板⑼反射出 明用中，凹槽631為球面或抛物面的弧形槽，但本發 ί 限。該實施例的螢絲色輪可以方便螢光粉的塗 光粉時無須遮蔽罩UaSk)的定位；並可以節省塗 本:遮浪費的螢絲，從而節省昂貴的螢光粉原材料成On the soil plate, see Figure 1A or Figure 2A. The condensing unit 33 is adjacent to the condensing unit 33 by the time-recognized fluorescent unit 31 for the generated light 201222135 line. In the embodiment, the condensing portion 33 is an 'EPOXY} layer that is coated on the fluorescent portion 31. In a preferred embodiment of the invention, the epoxy layer is cut: the shape is thick in the middle and thin on both sides to achieve the function of the convex lens. The method of f of the concentrating portion can be difficult to be combined with the LED packaging method, and the grease is filled in the two annular groove jigs, and then the color wheel coated with the fluorescent portion is covered, and the person can be taken out after being fixed. In addition, it is also possible to apply the optical glue to the fluorescent portion. The present invention is limited thereto. It is required that Wei Ming's fluorescent portion may be a single color or a group s of a plurality of colors (such as red, green and blue), and the fluorescent regions of different colors are generally arranged in a circular arrangement to form the fluorescent portion. 4A, FIG. 4A is a schematic diagram showing the operation of a transmissive fluorescent pink wheel 4 according to an embodiment of the present invention. The fluorescent pink wheel 4 comprises a substrate 4 which is a translucent substrate, such as glass or other transparent substrate. In this embodiment, the light-emitting angle of the light generated by the excitation of the fluorescent portion 41 can be changed by the shape of the condensing portion 43 to improve the light-receiving efficiency. Referring to FIG. 4B, FIG. 4B is an embodiment of the present invention. The working principle diagram of the reflective fluorescent pink wheel 5. The fluorescent pink wheel 5 comprises a substrate 5 which is a high reflectivity substrate, such as a metal plate or other reflecting plate. In this embodiment, the shape of the concentrating portion 53 In addition, in this embodiment, the concentrating portion 53 is further configured to make the excitation light more focused on the fluorescent portion. In addition, in this embodiment, the concentrating portion 53 is further used to make the excitation light more focused on the fluorescent portion. 51, thereby improving the excitation efficiency. The light concentrating portion 53 is focused on the fluorescent portion 51, and then the light generated by the fluorescent portion 51 is reflected by the substrate 50 and then passed through the concentrating portion 53 again to achieve the technical effect of concentrating the light twice in different directions. FIG. 5 is a schematic structural view of a fluorescent pink wheel 6 according to another embodiment of the present invention. The concentrating portion design of the fluorescent pink wheel 6 is different from the above embodiment, and the embodiment mainly utilizes a color changing wheel. The shape of the substrate is used for the purpose of improving the efficiency of the fluorescent pink wheel. The fluorescent pink wheel 6 includes a substrate 60, a fluorescent portion 61 and a concentrating portion 63. The fluorescent portion 61 is annularly disposed on the substrate 60, as shown in FIG. 1A or 2A, the concentrating portion 63 is adjacent to the fluorescent portion 61, and the condensing portion 63 is used to converge the 201222135 portion 63 which is generated by the excitation of the fluorescent portion 61 as a local reflectance substrate 'for example, a metal plate or other reflecting plate. a groove 631 formed on the substrate 6〇, the phosphor portion 61 is disposed in the groove 631. After the phosphor portion 61 is excited, the photodetection substrate (9) is reflected and used, and the groove 631 is spherical or parabolic. Curved groove, but this is limited. The filament color wheel of this embodiment can facilitate the firefly Without the light shielding cover UaSk powder when powder coating) is positioned; and save this coating: wire cover firefly waste, thereby saving expensive raw materials into phosphor
於7 地參見圖6 ’圖6為本發明又—實施例的螢光粉色 ί 。縣粉色輪7與螢祕色輪6的差異主要在 氧樹於^32 ^以包含包覆於勞光部61的環氧樹脂層632，環 後絲聚餘料部61，且所述經螢光 穿過光線域板⑼上_槽631 _反射後再次 此朗啸⑼过辭，讀絲發效率 幹。ίί 觀影機，紐影機包含上述的螢光粉色 二次的螢繼輪通過在螢光部上新增 實施 201222135 發明的範圍。減地，在不本發明 更動與潤飾，均屬本發_專利賴範^朴關内所作的 【圖式簡單說明】 圖1A和圖！丑為傳統的反射式螢光粉色輪的結構示音圖。 圖2A和圖2B為傳統的透射式螢光粉色輪的‘構圖: 圖3為本發明一實施例的螢光粉色輪的結構示意圖： 圖4A為本發明一實施例的透射式螢光粉色輪的工作原理圖。 圖4B為本發明一實施例的反射式螢光粉色輪的工作原理圖。 圖5為本發明另一實施例的螢光粉色輪的結構示意圖。 圖6為本發明又一實施例的螢光粉色輪的結構示意圖。 【主要元件符號說明】 ^14,5,6,7螢光粉色輪 10, 20, 3〇, 4〇, 50, 60 基板 U，21，31，41，51，61 螢光部 12馬達 33，幻，53,63聚光部 631凹槽Referring to Figure 6 in Figure 7, Figure 6 is a fluorescent pink ί of another embodiment of the present invention. The difference between the county pink wheel 7 and the fluorescing color wheel 6 is mainly in the oxygen tree at 3232 to include the epoxy resin layer 632 coated on the glaze portion 61, and the ring-shaped wire replenishing portion 61, and the fluorescing portion Light passes through the ray field plate (9) on the _slot 631 _ reflection and then screams (9) again, reading the silk hair efficiency. Ίί 影影机, New Zealand camera includes the above-mentioned fluorescent pink secondary flashing wheel by adding the scope of the 201222135 invention to the fluorescent section. The reduction of the land, in the absence of the invention, the movement and retouching, are all made in this _ patent Lai Fan ^ Pu Guan inside [Simple diagram of the diagram] Figure 1A and Figure! Ugly is the structural sound map of the traditional reflective fluorescent pink wheel. 2A and 2B are a schematic view of a conventional transmissive fluorescent pink wheel: FIG. 3 is a schematic structural view of a fluorescent pink wheel according to an embodiment of the present invention: FIG. 4A is a transmissive fluorescent pink wheel according to an embodiment of the present invention; Working principle diagram. 4B is a schematic view showing the operation of a reflective fluorescent pink wheel according to an embodiment of the present invention. FIG. 5 is a schematic structural view of a fluorescent pink wheel according to another embodiment of the present invention. FIG. 6 is a schematic structural view of a fluorescent pink wheel according to still another embodiment of the present invention. [Description of main component symbols] ^14,5,6,7 fluorescent pink wheel 10, 20, 3〇, 4〇, 50, 60 substrate U, 21, 31, 41, 51, 61 fluorescent part 12 motor 33, Illusion, 53, 63 concentrating part 631 groove