201043860 六、發明說明： 【發明所屬之技術領域】 本發明涉及一種照明裝置’尤其涉及一種具有防眩 光功能之照明裝置。 【先前技術】 燈具，如臺燈、路燈等係人們日常生活中不可或缺 之照明裝置，其於人們之學習及工作中發揮著重要作 0 用。燈具之研究可參閱 G. Miguel Ereu 等人於 2006 年 IEEE系統、輸電與配電研討會暨展覽會（Transmission & Distribution Conference and Exposition: Latin America, 2006. TDC Ό6. IEEE/PES)上發表之論文 A Methodology to Determine Electrical Energy Consumption in Street Lighting Systems o 惟，所述燈具發出之光線如不經過適當調整而直接 0 進入人眼，則可能因為亮度太大而刺激人眼，造成眩光 現象之產生，從而影響到視力健康。其中，眩光又以直 接眩光對人眼造成之傷害較為嚴重，請參照圖1，所謂 直接眩光係指發光源10發出之強光無遮擋地直接進入 人眼。對於通常之室内照明而言，直接眩光容易發生於 仰角位於45度至85度之區域。習知技術中，預防及消 除眩光’尤其係直接眩光成了一道技術難關。 有鑒於此，提供一種具有防眩光功能之照明裝置尤 為重要。 3 201043860 【發明内容】 下面將以實施例說明—種具有防眩光功能之照明 . 裝置。 —種照明裝置’包括—具有中心對稱軸之固態光源 及一光學透鏡。該固態光源用於發出光線。該光學透鏡 與該固態光源相對設置’包括—入光面及一與該入光面 相對之出光面，該入光面及該出光面中至少一者上配置 ❹沿一第一方向延伸之複數個第一條狀微結構，該複數個 第一條狀微結構對稱設置於該中心對稱軸之兩側，以收 縮該光線於一垂直於該第一方向之第二方向上之輻射 範圍。 相對於習知技術’所述照明裝置包含有光學透鏡， 該光學透鏡配置有複數個沿一第一方向延伸之第一條 狀微結構，該複數個第一條狀微結構對稱設置於該固態 Q 光源中心對稱軸之兩侧’其可使固態光源發出之光線經 由其折射後較為集中地出射’從而防止該光線直接進入 人眼並引起眩光現象。 【實施方式】 下面將結合圖式，以對本發明實施例作進一步之詳 細說明。 睛參照圖2及圖3，本發明第一實施例提供了一種 知明裝置100 ’其包括：一光源模組11及一光學透鏡 15。 4 201043860 該光源模組11包括一基板111，以及安裝於該基板 111上之一固態光源113。該基板111可為一電路板 111，該電路板111可藉由排佈於其上之線路來連接一 外部電源（圖未示），從而對該固態光源113進行供電。 該固態光源113可為LED晶片或LED，其具有一中心 對稱軸Μ。當該固態光源113為LED時，其通電後由 其出光面113A發出光線I，並形成一放射狀之光場， 如圖3所示出之呈朗伯（Lambertian )分佈之配光曲線。 由圖3可看出該固態光源113之半高全寬角（Full Width at Half Maximum, FWHM )在 ±60。内，故，該固態光源 113之發光角度大約為120度。 該光學透鏡15與該光源模組11相對，本實施例中 其具有一板狀輪廓。具體地，該光學透鏡15包括一入 光面150及一與入光面150相對之出光面152，該入光 面150為平面且與該固態光源113相鄰設置，而出光面 ❹ 152上配置沿第一方向（圖2示出光學透鏡15沿第一 方向之正視圖）延伸之複數個第一條狀微結構155。優 選地，該出光面152與該固態光源113之出光面113A 之間距L為1.45mm。 該複數個第一條狀微結構155沿該出光面152並列 設置，其可具體為鋸齒狀凸起，如圖2所示之棱錐形鋸 齒狀凸起155，當然其亦可為其他形狀，如梯形鋸齒狀 凸起等。每個棱錐形鋸齒狀凸起155包括一第一鋸齒面 5 201043860 155A，以及一連接該第一鋸齒面155A之第二鋸齒面 155B，其中，該第二鋸齒面155B位於該棱錐形鋸齒狀 凸起155之鄰近該中心對稱軸M之一側，且其垂直於 入光面150。對於位於中心對稱轴M同一側之每一棱錐 形鋸齒狀凸起155而言，其第二鋸齒面155B與相鄰棱 錐形鋸齒狀凸起155之第一鋸齒面155A相接，從而形 成一棱錐开> 鑛齒狀凸起陣列。該中心對稱轴Μ之兩侧 各具有一棱錐形鋸齒狀凸起陣列，該兩個棱錐形鋸齒狀 凸起陣列關於該中心對稱軸Μ鏡像對稱。 該棱錐形鋸齒狀凸起155沿垂直於第一方向之截 面具有一個二角形輪廓，該三角形輪廓之頂角θ大於或 等於33度。 '一 該固態光源113發出之光線丨經入光面15〇入射至 光學透鏡15，當該光線ϊ由第一鋸齒面155八時，其於 該第一鋸齒面155Α上發生會聚狀折射，從而形成一會 聚狀之光場。具體地’圖4示出當三角形輪靡之頂角: 為33度時該光場之配光曲線，由圖4可看出光線1經 光學透鏡15後之半高全寬角在0度至牦度之間，以及 315度至360度之間，亦即該固態光源ιΐ3經過該光學 透鏡15之發光角度大約為90度。故，光學透鏡15收 縮了固態光源113於一垂直於第—方向之第二方向上 之輻射範圍，使得固態光源113發出之光線〗經由其折 射後較為集中地出射。 6 201043860 該照明裝置100可被應用於室内照明中。如圖5所 示，該固態光源113發出之光線I經該光學透鏡15折 射後，其不會從觀測者正常之仰角（45度至85度之間） 直接進入人眼，故可有效防止眩光現象。 可理解，該光學透鏡15可由以下材料製成，如矽 膠（Silicone)、壓克力（PMMA)、聚碳酸酯（PC)、環氧樹 脂（Epoxy)或聚對苯二曱酸乙二醇酯（polyethylene 義 terephthalate，PET)等。 Ο 該複數個第一條狀微結構155不僅可配置於光學 透鏡15之出光面152上，其亦可根據需要配置於入光 面上。請參照圖6，本發明第二實施例提供之一種照明 裝置200,其與第一實施例提供之照明裝置100結構類 似，差別在於：光學透鏡25之出光面252為一平面， 而複數個第一條狀微結構255配置於入光面250上； 另，於光學透鏡25與固態光源213之間設置有透光接 ® 合層27進行連接。進一步地，固態光源213包括以中 心對稱軸Μ為鏡像中心且沿第二方向（第二方向垂直 於第一方向）均勻間隔設置之四個發光二極體晶片。 該透光接合層27之材料為樹脂或矽膠，其於製作 時係先填充於光學透鏡25與電路板211之間，再利用 UV光（Ultraviolet Ray，紫外光）照射使其固化，從 而密封該固態光源213。可理解，由於固態光源213包 括發光二極體晶片，該透光接合層27可當作密封該發 7 201043860 光一極體曰日片之封裝體（enCapSUlant )。優選地，該透 光接合層27所採用之材料之折射係數（Refractive Index )應小於該光學透鏡25所採用之材料之折射係數。 • 該固態光源213發出之光線I於該光學透鏡25同 樣可發生會聚狀折射，從而形成一會聚狀之光場。 圖7示出了本發明第三實施例提供之一種照明裝 置300 ’與第一實施例提供之照明裝置ι〇〇相比’其差 〇 別在於：光學透鏡35之入光面350上進一步配置複數 個第二條狀微結構358，且該複數個第二條狀微結構 358沿第二方向X延伸，該第二方向X垂直於第一方 向Y。 »亥複數個苐一條狀微結構3 5 8之結構與複數個第 條狀微結構355相同，其亦為棱錐形鋸齒狀凸起且分 別形成兩個棱錐形鋸齒狀凸起陣列，且該兩個棱錐形鋸 Ο 齒狀凸起陣列關於該中心對稱軸Μ鏡像對稱。 該複數個第二條狀微結構358可進一步沿第一方 向Υ會聚每個發光二極體313發出之光線。故，光學 透鏡35同時收縮了每個發光二極體313於第一、第一 方向Χ、Υ上之輻射範圍。 綜上所述，本發明確已符合發明專利之要件，遂依 ，提出專利申請。惟，以上所述者僅為本發明之較佳實 施方式，自不能以此限制本案之申請專利範圍。舉凡熟 8 201043860 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】 • 圖1係直接眩光產生之原理示意圖。 圖2係本發明第一實施例提供之照明裝置之結構 不意圖。 ® 3係圖2所示照明裝置之固態光源之配光曲線 圖。 圖4係圖2所示照明裴置之固態光源經過光學透鏡 後所形成之配光曲線圖。 圖5係圖2所示照明裝置應用於室内照 光之原理示意圖。 @ 圖6係本發明第二實施例提供之照明裝置之結構 ^ 示意圖。 〇 圖7係本發明第三實施例提供之照明裝置之結構 不意圖。 【主要元件符號說明】 10 100、200、300 11 光源 15、25、35 照明裝置 光源模組 光學透鏡 9 201043860 電路板 111 、 211 固態光源 113、213、313 • 出光面 113A 入光面 150、250、350 出光面 152、252、352 第一條狀微結構 155、255、355 第一鋸齒面 155A 〇 第二鋸齒面 155B 透光接合層 27 第二條狀微結構 358201043860 VI. Description of the Invention: [Technical Field] The present invention relates to a lighting device', and more particularly to a lighting device having an anti-glare function. [Prior Art] Lamps, such as table lamps and street lamps, are indispensable lighting devices in people's daily lives, and they play an important role in people's study and work. For the study of luminaires, see G. Miguel Ereu et al. at the 2006 IEEE Systems, Transmission and Distribution Conference and Exposition: Latin America, 2006. TDC Ό6. IEEE/PES A Methodology to Determine Electrical Energy Consumption in Street Lighting Systems o However, if the light emitted by the luminaire enters the human eye directly without being properly adjusted, the glare may be caused by the brightness being too large, thereby causing glare. Affects vision health. Among them, glare damage to the human eye caused by direct glare is more serious. Please refer to Fig. 1. The direct glare means that the glare from the illuminating source 10 directly enters the human eye without blocking. For normal indoor lighting, direct glare is likely to occur in areas where the elevation angle is between 45 and 85 degrees. In the prior art, prevention and elimination of glare, especially direct glare, has become a technical difficulty. In view of this, it is particularly important to provide an illumination device having an anti-glare function. 3 201043860 SUMMARY OF THE INVENTION Hereinafter, an illumination device having an anti-glare function will be described by way of embodiments. A lighting device 'includes a solid state light source having a central axis of symmetry and an optical lens. The solid state light source is used to emit light. The optical lens is disposed opposite to the solid-state light source, including a light-incident surface and a light-emitting surface opposite to the light-incident surface, and at least one of the light-incident surface and the light-emitting surface is disposed to extend in a first direction a first strip-shaped microstructure, the plurality of first strip-shaped microstructures being symmetrically disposed on opposite sides of the central axis of symmetry to contract the radiation in a second direction perpendicular to the first direction. The illumination device includes an optical lens configured with a plurality of first strip-shaped microstructures extending along a first direction, and the plurality of first strip-shaped microstructures are symmetrically disposed in the solid state Q The two sides of the central axis of the symmetry of the light source 'which allows the light from the solid-state light source to condense and condense more concentratedly' to prevent the light from directly entering the human eye and causing glare. [Embodiment] Hereinafter, embodiments of the present invention will be further described in detail in conjunction with the drawings. Referring to Figures 2 and 3, a first embodiment of the present invention provides a known device 100' which includes a light source module 11 and an optical lens 15. 4 201043860 The light source module 11 includes a substrate 111 and a solid state light source 113 mounted on the substrate 111. The substrate 111 can be a circuit board 111. The circuit board 111 can be connected to an external power source (not shown) by a line disposed thereon to supply power to the solid state light source 113. The solid state light source 113 can be an LED wafer or LED having a central axis of symmetry. When the solid-state light source 113 is an LED, it emits light I from the light-emitting surface 113A after being energized, and forms a radial light field, as shown in Fig. 3, which is a Lambertian distribution light distribution curve. It can be seen from Fig. 3 that the solid-state light source 113 has a Full Width at Half Maximum (FWHM) of ±60. Therefore, the solid-state light source 113 has an illumination angle of about 120 degrees. The optical lens 15 is opposed to the light source module 11, which has a plate-like profile in this embodiment. Specifically, the optical lens 15 includes a light incident surface 150 and a light exit surface 152 opposite to the light incident surface 150. The light incident surface 150 is planar and disposed adjacent to the solid state light source 113, and is disposed on the light exit surface 152. A plurality of first strip-shaped microstructures 155 extending in a first direction (Fig. 2 shows a front view of the optical lens 15 in a first direction). Preferably, the distance L between the light-emitting surface 152 and the light-emitting surface 113A of the solid-state light source 113 is 1.45 mm. The plurality of first strip-shaped microstructures 155 are juxtaposed along the light-emitting surface 152, which may be specifically zigzag-shaped protrusions, as shown in FIG. 2, and may have other shapes, such as Trapezoidal zigzag protrusions, etc. Each pyramidal serrated protrusion 155 includes a first serrated surface 5 201043860 155A and a second serrated surface 155B connected to the first serrated surface 155A, wherein the second serrated surface 155B is located in the pyramidal serrated convex The 155 is adjacent to one side of the central axis of symmetry M and is perpendicular to the light incident surface 150. For each pyramidal serrated protrusion 155 located on the same side of the central axis of symmetry M, the second serrated surface 155B is in contact with the first serrated surface 155A of the adjacent pyramidal serrated protrusion 155, thereby forming a pyramid Open > mineral toothed raised array. Each of the two sides of the central axis of symmetry has an array of pyramidal serrated protrusions that are mirror-symmetrical about the central axis of symmetry. The pyramidal serrated protrusion 155 has a quadrangular profile along a section perpendicular to the first direction, the apex angle θ of the triangular profile being greater than or equal to 33 degrees. 'The light emitted by the solid-state light source 113 is incident on the optical lens 15 through the light incident surface 15 , and when the light ray is occupied by the first sawtooth surface 155 , it converges on the first sawtooth surface 155 ,, thereby Form a converging light field. Specifically, FIG. 4 shows the light distribution curve of the light field when the apex angle of the triangular rim is 33 degrees. It can be seen from FIG. 4 that the full width angle of the light half 1 after passing through the optical lens 15 is from 0 degrees to 牦. Between 315 degrees and 360 degrees, that is, the solid-state light source ι 3 passes through the optical lens 15 at an illumination angle of about 90 degrees. Therefore, the optical lens 15 shrinks the radiation range of the solid-state light source 113 in a second direction perpendicular to the first direction, so that the light emitted by the solid-state light source 113 is more concentratedly emitted after being deflected. 6 201043860 The lighting device 100 can be used in indoor lighting. As shown in FIG. 5, after the light I emitted by the solid-state light source 113 is refracted by the optical lens 15, it does not directly enter the human eye from the observer's normal elevation angle (between 45 degrees and 85 degrees), thereby effectively preventing glare. phenomenon. It can be understood that the optical lens 15 can be made of the following materials, such as Silicone, PMMA, polycarbonate (PC), epoxy (Epoxy) or polyethylene terephthalate. (polyethylene terephthalate, PET) and the like. The plurality of first strip-shaped microstructures 155 can be disposed not only on the light-emitting surface 152 of the optical lens 15, but also on the light-incident surface as needed. Referring to FIG. 6 , a lighting device 200 according to a second embodiment of the present invention is similar in structure to the lighting device 100 provided by the first embodiment. The difference is that the light emitting surface 252 of the optical lens 25 is a plane, and the plurality of The strip-shaped microstructures 255 are disposed on the light-incident surface 250. Further, a light-transmitting layer 27 is disposed between the optical lens 25 and the solid-state light source 213 for connection. Further, the solid-state light source 213 includes four light-emitting diode wafers that are centered at the center of the center of symmetry and that are evenly spaced in the second direction (the second direction is perpendicular to the first direction). The material of the light-transmitting bonding layer 27 is resin or silicone, which is first filled between the optical lens 25 and the circuit board 211, and then cured by UV light (Ultraviolet Ray) to seal the film. Solid state light source 213. It can be understood that since the solid state light source 213 includes a light emitting diode wafer, the light transmissive bonding layer 27 can be used as a package (enCapSUlant) for sealing the photo. Preferably, the refractive index of the material used for the light-transmitting bonding layer 27 should be smaller than the refractive index of the material used for the optical lens 25. • The light I emitted by the solid-state light source 213 can also be condensed in a convergent manner in the optical lens 25 to form a convergent light field. FIG. 7 shows a lighting device 300' according to a third embodiment of the present invention, which is different from the lighting device provided in the first embodiment. The difference is that the optical lens 35 is further disposed on the light incident surface 350. A plurality of second strip-shaped microstructures 358, and the plurality of second strip-shaped microstructures 358 extend in a second direction X, the second direction X being perpendicular to the first direction Y. a plurality of ridge-like microstructures 3 5 8 having the same structure as the plurality of strip-shaped microstructures 355, which are also pyramid-shaped serrated protrusions and respectively forming two pyramid-shaped serrated protrusion arrays, and the two A pyramidal saw Ο The array of dentate projections is mirror symmetrical about the central axis of symmetry. The plurality of second strip-shaped microstructures 358 can further converge the light emitted by each of the light-emitting diodes 313 along the first direction. Therefore, the optical lens 35 simultaneously shrinks the radiation range of each of the light-emitting diodes 313 in the first and first directions Χ and Υ. In summary, the present invention has indeed met the requirements of the invention patent, converted, and filed a patent application. However, the above description is only a preferred embodiment of the present invention, and it is not possible to limit the scope of the patent application of the present invention. Equivalent modifications or variations made by persons skilled in the art in light of the spirit of the present invention are intended to be included in the scope of the following claims. [Simple description of the diagram] • Figure 1 is a schematic diagram of the principle of direct glare generation. Fig. 2 is a view showing the structure of a lighting device according to a first embodiment of the present invention. ® 3 is a light distribution curve of a solid-state light source of the illumination device shown in Fig. 2. 4 is a light distribution curve formed by the solid state light source of the illumination device shown in FIG. 2 after passing through an optical lens. Fig. 5 is a schematic view showing the principle of the illumination device shown in Fig. 2 applied to indoor illumination. @ Figure 6 is a schematic view showing the structure of a lighting device according to a second embodiment of the present invention. Fig. 7 is a view showing the structure of a lighting device according to a third embodiment of the present invention. [Main component symbol description] 10 100, 200, 300 11 Light source 15, 25, 35 Illumination device light source module Optical lens 9 201043860 Circuit board 111, 211 Solid state light source 113, 213, 313 • Light-emitting surface 113A Light-in surface 150, 250 , 350 illuminating surface 152, 252, 352 first strip microstructure 155, 255, 355 first serrated surface 155A 〇 second serrated surface 155B transparent bonding layer 27 second strip microstructure 358