201213733 六、發明說明： 【發明所屬之技術領域】 [0001] 本發明涉及一種點光源裝置’特別是涉及一種單色的具 有微棱鏡的LED點光源裝置° 【先前技術】 [0002] LED具有無汞、高發光效率、使用壽命長等優點’現已逐 漸取代傳統之照明光源。雖然LED具有較高的發光致率’ 但因LED單點光源的發光體積很小，應用於大型照明系統 時需多顆LED予以陣列化成為足夠大面積的光源組件，然 而，此種方式所需的LED數量較多，這導致成本較高，且 如果單顆LED燈損壞將導致整列LED故障，使信賴性降低 。現有做法中有搭配擴散板或搭配由光擴散材料製成的 燈罩而獲得具有良好照明功能的面光源裝置。然而，使 用擴散板或光擴散材料雖然可以提高出射光的均勻性， 但仍需設置足夠多的LED光源陣列滿足光亮的需要。 【發明内容】 _3]有鑒於此，有必要提供一種具有微棱鏡的單色的LED點光 源陣列的光源裝置，可減少LED點光源的數量，相对提高 出射光的亮度。 [0004] -種LED點光源裝置，包括殼體及電路純，所述電路基 板固定在殼體底部。所述LED點光源裝置還包括設置在所 述至少-個LED點光源的上方的微棱鏡光學板所述微棱 鏡光學板上形成有沿至少兩個不同方向延伸的多個v形脊 ’使單-⑽點域發㈣光線經騎㈣棱鏡光學板形 成多個虛擬光源；所述電路基板上設置有多個光源元件 099133162 表單編號A0101 第4頁/共17頁 0992057964-0 201213733 [0005] Ο [0006]201213733 VI. Description of the Invention: [Technical Field] [0001] The present invention relates to a point light source device', particularly to a single-color LED point light source device having a microprism. [Prior Art] [0002] LED has no Mercury, high luminous efficiency, long service life and other advantages have gradually replaced traditional lighting sources. Although the LED has a high luminosity rate, the LED single-point source has a small illuminating volume. When used in a large-scale lighting system, multiple LEDs are required to be arrayed into a sufficiently large-area light source component. However, this method requires The large number of LEDs leads to higher costs, and if a single LED lamp is damaged, the entire column of LEDs will fail, reducing reliability. In the prior art, a diffusing plate or a lampshade made of a light diffusing material is used to obtain a surface light source device having a good lighting function. However, the use of a diffuser or a light diffusing material can improve the uniformity of the emitted light, but it is still necessary to provide a sufficient array of LED light sources to meet the needs of the light. SUMMARY OF THE INVENTION In view of the above, it is necessary to provide a light source device of a monochromatic LED point light source array having microprisms, which can reduce the number of LED point light sources and relatively increase the brightness of the emitted light. [0004] An LED point light source device comprising a housing and circuit pure, the circuit substrate being fixed to the bottom of the housing. The LED point light source device further includes a microprism optical plate disposed above the at least one LED point light source, wherein the microprism optical plate is formed with a plurality of v-shaped ridges extending in at least two different directions to make a single - (10) dot-field transmission (four) light riding (four) prism optical plate to form a plurality of virtual light sources; the circuit substrate is provided with a plurality of light source elements 099133162 Form No. A0101 Page 4 / 17 pages 0992057964-0 201213733 [0005] Ο [ 0006]
GG
[0007] ，多個光源元件排列成行間距和列間距分別第一預定值 和第二預定值的陣列結構，所述每個光源元件設有兩個 LED點光源，所述兩個LED點光源的中心距為第三預定值 〇 本發明的LED點光源裝置中，LED點光源發出的光線透過 所述微棱鏡光學板的至少兩方向的多個長條狀V形脊時會 發生特定的折射、反射等作用，從而將單色LED點光源發 出的光線擴散成多倍化虛擬光源並向特定視角範圍内聚 集’通過將點光源按預定值排布，在不影響發光亮度的 同時，可減少LED點光滅的數量，從而節省成本。 【實施方式】 請參閱圖1，LED點光源裝置1〇〇包括殼體1〇、電路基板 20、微棱鏡光學板30。殼體10包括一個底板1〇1、沿底 板101的四周延伸的側壁102及一保護罩103。該底板ιοί 和該侧壁102圍成一收容腔;。所述保護罩丨03由透明玻璃 、毛玻璃、透明塑膠板等透卞材質中的一種製成，保護 罩103固定在微棱鏡光學板*30,巧丰方，用於保護微棱鏡光 學板30的表層不受到污染或刮傷。本實施方式中，所述 底板101及側壁102可由具有高反射率的金屬或塑膠製成 ，或由塗布有高反射率塗層的金屬或塑膠製成。電路基 板10固定在底板101上，且所述LED電路基板20表面排布 至少一個LED點光源201，其中，所述LED點光源201為單 色的發光二極體，微棱鏡光學板30固定在殼體1〇内且大 致與底板101平行，且其設置于LED點光源201的上方" 請一併參閱圖2和圖3，所述LED點光源201發射的光線通 099133162 表單編號A0101 第5頁/共17頁 0992057964-0 201213733 過所述微棱鏡光學板30形成多個虚擬光源202，其中，根 據微棱鏡光學板30中不同的棱鏡結構，會產生不同數量 的虛擬光源202。每個LED點光源201產生的虛擬光源2〇2 均勻分佈在以該LED點光源201為圓心、以R為半徑的圓周 上，若設有多個LED點光源201，設定LED點光源2〇丨相鄰 兩個LED點光源201的中心距為R，使得LED點光源2〇lm 產生的虛擬光源202規則性重疊，增強虛擬光源202的亮 度。由於一個點光源經微棱鏡光學板30的反射或折射可 產生多個虛擬光源202，在不影響發光亮度的同時，可減 少LED點光源的數量，從而節省成本。 [0008] 請參閱圖4，所述微棱鏡光學板30由透明塑膠材質製成， 其具有入光面301及與入光面301相對的出光面302，該 入光面301為平面且面向LED點光源201，該出光面3〇2上 形成有沿兩個不同方向延伸的多個V形脊3 0 3 ’且該不同 方向延伸的多個V形脊303相互交^錯，使每個LED點光源 201發出的光經過該微棱鏡光孥板後可形成4個的虛擬 光源202。該V形脊303包括多個沿第一方向XI延伸的多 個長條狀V形脊313及多個沿第二方向X2延伸的多個長條 狀V形脊314，其中’沿第一方向XI延伸的多個長條狀v形 脊313和沿第二方向X3延伸的多個長條狀V形脊315相互 正交于一點，形成一四角星322 ’且每個V形脊的頂角317 均為45度。分別與兩個正交方向XI及X2延伸的長條狀v形 脊313及314具有共同連接點的對稱方向X3及X4也形成長 條狀V形脊31 5及316。 [0009] 請參閱圖5和圖6，本實施方式中，所述LED點光源裝置 099133162 表單編號A0101 第6頁/共〗7頁 0992057964-0 201213733 Ο [0010] 100有多個光源元件40，多個光源元件40組成光源元件陣 列，光源元件陣列的行間距和列間距分別設置為第一預 定值2R和第二預定值3R。其中，每個光源元件40設有兩 個LED點光源201，且每個光源元件40内的兩個LED點光 源201的中心距為第三預定值R。由於在微棱鏡光學板3〇 的出光面302設置有兩個方向的多個長條狀V形脊，LED點 光源201發出的光線透過該出光面302時會發生特定的折 射、反射等作用，從而將單一LED點光源201發出的光線 擴散成圖6所示的四倍虛擬光源陣列並向特定視角範圍内 聚集，增加單色光的光亮度。 ο 其他實施方式中’該微棱鏡光學板30的出光面3〇2可以是 三個或四個不同方向的延伸的多個V形脊，且該不同方向 延伸的多個V形脊相互交錯，若出光面302為三個不同方 向的延伸的多個V形脊，則該三個方向的延伸的v形脊彼 此相交於一點，其中，相鄰兩方向延伸的V形脊的夹角呈 60度’形成六角星形。如此，單一LED點光源2〇1發出的 光線擴散成六倍虛擬光源；若却光面302為四個不同方向 的延伸的多個V形脊，則該四個方向的延伸的v形脊妹構 彼此相交於一點，其中，相鄰兩方向延伸的V形脊結構的 夾角呈45度’形成八角星形。如此’單一 LED點光源2〇1 發出的光線擴散成八倍虛擬光源並向特定視角範圍内聚 集，形成八倍光源》 本發明的LED點光源裝置1〇〇中，LED點光源2〇1發出的光 線透過所述微棱鏡光學板30的至少兩方向的多個長條狀v 形脊結構時會發生特定的折射、反射等作用，從而將單 099133162 表單編號A0101 第7頁/共17頁 0992057964-0 [0011] 201213733 色LED點光源201發出的先線擴散成多倍化虛擬光源並向 特定視角範圍内聚集，增加單色光的光亮度。 [〇〇12]本技術領域的普通技術人員應當認識到，以上的實施方 式僅是用來說明本發明，而並非用作為對本發明的限定 ，只要在本發明的實質精神範圍之内，對以上實施例所 作的適當改變和變化都落在本發明要求保護的範圍之内 〇 【圖式簡單說明】 [0013] 圖1為本發明中LED點光源敦置的刻面示意圖。 [0014] 圖2為圖1中LED點光源產生虛擬光源的光路圖。 则S3為圖1中單-LED點光源產生4倍虛擬光源的結構示意 圖。 [0016]圖4為圖1中微棱鏡光學板的整體結構示意圖。 [ΟΟΠ]圖5為圖1中LED點光源陣列的蛛布乘示意;圖…。 [0018] 圖6為圖5中LED點光源陣列產生盧:擬光嚷的示意圖。 【主要元件符號說明】 [0019] LED點光源裝置：1〇〇 [0020] 殼體：10 [0021] 底板：101 [0022] 側壁：102 [0023] 保護罩：103 [0024] 電路基板：20 099133162 表單編號A0101 第8頁/共17頁 0992057964-0 201213733 [0025] LED點光源：201 [0026] 虛擬光源：202 [0027] 微棱鏡光學板：30 • [0028] 入光面：301 [0029] 出光面：3 0 2 [0030] V形脊：303、313、314、315、316 [0031] Ο 四角星：322 [0032] 頂角：317 [0033] 光源組件：40 099133162 表單編號A0101 第9頁/共17頁 0992057964-0[0007] a plurality of light source elements are arranged in an array structure of a first predetermined value and a second predetermined value of a row pitch and a column pitch, wherein each of the light source elements is provided with two LED point light sources, and the two LED point light sources The central distance is a third predetermined value. In the LED point light source device of the present invention, when the light emitted by the LED point source passes through the plurality of elongated V-shaped ridges in at least two directions of the microprism optical plate, a specific refraction occurs. Reflex, etc., so that the light emitted by the monochromatic LED point source is diffused into a multi-fold virtual light source and concentrated in a specific viewing angle range. By arranging the point source at a predetermined value, the LED can be reduced without affecting the brightness of the light. The number of light stops, which saves costs. [Embodiment] Referring to Fig. 1, an LED point light source device 1A includes a casing 1A, a circuit board 20, and a microprism optical plate 30. The housing 10 includes a bottom plate 1, a side wall 102 extending along the periphery of the bottom plate 101, and a protective cover 103. The bottom plate ιοί and the side wall 102 enclose a receiving cavity; The protective cover 丨03 is made of one of transparent materials such as transparent glass, frosted glass, transparent plastic plate, etc., and the protective cover 103 is fixed on the microprism optical plate *30, which is used to protect the microprism optical plate 30. The surface layer is not contaminated or scratched. In this embodiment, the bottom plate 101 and the side wall 102 may be made of metal or plastic having high reflectivity or made of metal or plastic coated with a high reflectivity coating. The circuit board 10 is fixed on the bottom plate 101, and at least one LED point light source 201 is arranged on the surface of the LED circuit substrate 20. The LED point light source 201 is a monochromatic light emitting diode, and the microprism optical plate 30 is fixed at The housing 1 is substantially parallel to the bottom plate 101 and is disposed above the LED point light source 201. Please refer to FIG. 2 and FIG. 3 together, the light emitted by the LED point light source 201 is 099133162. Form No. A0101 No. 5 Pages / Total 17 pages 0992057964-0 201213733 The microprism optical plate 30 forms a plurality of virtual light sources 202, wherein different numbers of virtual light sources 202 are generated depending on the different prism structures in the microprism optical plate 30. The virtual light source 2〇2 generated by each of the LED point light sources 201 is evenly distributed on the circumference with the LED point light source 201 as the center and R as the radius. If a plurality of LED point light sources 201 are provided, the LED point light source 2 is set. The center distance of the adjacent two LED point light sources 201 is R, so that the virtual light sources 202 generated by the LED point light sources 2〇lm are regularly overlapped, and the brightness of the virtual light sources 202 is enhanced. Since a single point source is reflected or refracted by the microprism optical plate 30 to generate a plurality of virtual light sources 202, the number of LED point sources can be reduced without affecting the brightness of the light, thereby saving cost. Referring to FIG. 4, the microprism optical plate 30 is made of a transparent plastic material, and has a light incident surface 301 and a light exit surface 302 opposite to the light incident surface 301. The light incident surface 301 is planar and faces the LED. a point light source 201 having a plurality of V-shaped ridges 3 0 3 ' extending in two different directions and having a plurality of V-shaped ridges 303 extending in different directions intersecting each other to make each LED The light emitted by the point source 201 passes through the microprism diaphragm to form four virtual light sources 202. The V-shaped ridge 303 includes a plurality of elongated V-shaped ridges 313 extending in the first direction XI and a plurality of elongated V-shaped ridges 314 extending in the second direction X2, wherein 'in the first direction The plurality of elongated v-shaped ridges 313 extending in XI and the plurality of elongated V-shaped ridges 315 extending in the second direction X3 are orthogonal to each other to form a four-pointed star 322 'and a top of each V-shaped ridge The angle 317 is 45 degrees. The symmetrical directions X3 and X4 of the elongated v-shaped ridges 313 and 314 extending in the two orthogonal directions XI and X2, respectively, having common joint points also form elongated V-shaped ridges 315 and 316. Referring to FIG. 5 and FIG. 6 , in the embodiment, the LED point light source device 099133162 Form No. A0101 Page 6 / Total 7 Page 0992057964-0 201213733 Ο [0010] 100 has a plurality of light source elements 40, The plurality of light source elements 40 constitute an array of light source elements, and the line pitch and the column pitch of the array of light source elements are respectively set to a first predetermined value 2R and a second predetermined value 3R. Each of the light source elements 40 is provided with two LED point light sources 201, and the center distance of the two LED point light sources 201 in each of the light source elements 40 is a third predetermined value R. Since a plurality of elongated V-shaped ridges in two directions are disposed on the light-emitting surface 302 of the microprism optical plate 3, the light emitted by the LED point light source 201 passes through the light-emitting surface 302 to cause specific refraction and reflection. Thereby, the light emitted by the single LED point source 201 is diffused into the quadruple virtual light source array shown in FIG. 6 and concentrated in a specific viewing angle range, thereby increasing the brightness of the monochromatic light. In other embodiments, the light-emitting surface 3〇2 of the microprism optical plate 30 may be a plurality of V-shaped ridges extending in three or four different directions, and the plurality of V-shaped ridges extending in different directions are interlaced. If the light exiting surface 302 is a plurality of V-shaped ridges extending in three different directions, the extended v-shaped ridges in the three directions intersect each other at a point, wherein the angle between the V-shaped ridges extending in the adjacent two directions is 60. Degree 'forms a hexagonal star. Thus, the light emitted by the single LED point source 2〇1 is diffused into a six-fold virtual light source; if the light surface 302 is a plurality of V-shaped ridges extending in four different directions, the extended v-shaped ridges in the four directions The structures intersect each other at a point in which the angle of the V-shaped ridge structure extending in two adjacent directions forms an octagonal star at 45 degrees. Thus, the light emitted by the single LED point light source 2〇1 is diffused into eight times the virtual light source and is concentrated to a specific viewing angle range to form an eight-fold light source. In the LED point light source device of the present invention, the LED point light source 2〇1 is emitted. When the light passes through the plurality of elongated v-shaped ridge structures in at least two directions of the microprism optical plate 30, specific refraction, reflection, and the like occur, so that the single 099133162 form number A0101 page 7 / 17 pages 0992057964 -0 [0011] 201213733 The first line emitted by the color LED point source 201 is diffused into a multi-fold virtual light source and concentrated in a specific viewing angle range, increasing the brightness of the monochromatic light. [0012] It should be understood by those skilled in the art that the above embodiments are merely illustrative of the invention, and are not intended to limit the invention, as long as they are within the spirit of the invention. Appropriate changes and variations of the embodiments are within the scope of the claimed invention. [FIG. 1] FIG. 1 is a schematic plan view of a LED point source in the present invention. 2 is an optical path diagram of the virtual light source generated by the LED point light source of FIG. 1. Then, S3 is a structural schematic diagram of the single-LED point source in FIG. 1 generating a virtual light source of 4 times. 4 is a schematic view showing the overall structure of the microprism optical plate of FIG. 1. [ΟΟΠ] Fig. 5 is a schematic diagram of the arachidal of the LED point source array of Fig. 1; Fig.... [0018] FIG. 6 is a schematic diagram of the LED point source array of FIG. [Main component symbol description] [0019] LED point light source device: 1〇〇 [0020] Case: 10 [0021] Base plate: 101 [0022] Side wall: 102 [0023] Protective cover: 103 [0024] Circuit substrate: 20 099133162 Form No. A0101 Page 8 of 17 0992057964-0 201213733 [0025] LED Point Light Source: 201 [0026] Virtual Light Source: 202 [0027] Micro Prism Optical Plate: 30 • [0028] Light Entry Surface: 301 [0029] ] Light surface: 3 0 2 [0030] V-shaped ridge: 303, 313, 314, 315, 316 [0031] Ο Four-pointed star: 322 [0032] Top angle: 317 [0033] Light source component: 40 099133162 Form number A0101 9 pages / total 17 pages 0992057964-0