200928514 九、發明說明： "【發明所屬之技術領域】 • 本發明涉及一種光場調節裝置，特別涉及一種具有較 佳光利用效率之光場調節裝置，以及一種採用該光場調節 裝置之照明裝置。 【先前技術】 目前，發光二極體（Light Emitting Diode，LED)因具光 質佳（亦即LED光源射出之光譜）及發光效率高等特性而逐 〇 漸取代冷陰極螢光燈（Cold Cathode Fluorescent Lamp， CCFL)成為照明裝置中之發光元件，具體可參閱Michael S. Shur 等人於文獻 proceedings of the IEEE，Vol. 93, No. 10 (2005 年 10 月）中發表之 “Solid-State Lighting: Toward Superior Illumination”一文。 對於先前採用發光二極體作為發光元件之照明裝置， 其通常具有近似圓對稱之光場（如圖1所示），該等光場之中 心光強度較強，由中心向四周擴散之區域光強度越來越 〇 弱’惟實際生活中並不總需要此類型之光場，例如，對於 先前之路燈20而言，其通常設置於道路22之兩旁，故， 路燈20產生之光場無法完全位於道路22内（如圖2所示）， 導致該路燈20無法獲得較佳之光利用效率。 有鑒於此，有必要提供一種具較佳光利用效率之光場 調節裝置及採用該光場調節裝置之照明裝置。 【發明内容】 以下將以實施例說明一種光場調節裝置及採用該光場 6 200928514 _調節=照明裝置，其具有較佳之光利。 一種光場調節裝置，A 羊 .單元包/、包括歿數透鏡單元，每個 μ包括入光面、一與該母個透鏡 端面以及-與該第一端面相 出先面、-第- 該第二端面分別連接該入光面虚該第-端面與 元之第一端面貼附於盥該透、二7^面，該母個透鏡單 ❹分別具有兩條垂直於第=，；第-端面與該第二端面 元之第-端面之第:之:二一邊:且該每個⑽ 度。 "弟一鸲面之第一邊之長 一種照明裝置，包括至少一 場調節裝置，其愈至少^原’用於發射光；一光 包括複數透r 乂 對設置’該光場調節裝置 I括複數透鏡早π ’每個透鏡單元包括一 入光面相對之出光面、一 一山 對之第- 苐一鳊面以及一與該第一端面相 〇 第—端面’該第1面與該第二端面分別連接今入光 面與該出光面，該每個透鏡單 ：:連接該入先 鏡單元相鄰之透鏡單元j = =一^面貼附於與該透 i，：=?及該出光面中之-者為沿第-方向延伸之凸 =、端面與該第二端面分別具有兩條垂直於第一方 該每個透鏡單元之第一端面之第一邊之長 度大於第一端面之第一邊之長度。 "較於先μ技術，所述光場調節裝置藉由^置具有一 "及出光面之透鏡單元，並將該入光面及該出光面 200928514 中之一者設置為沿第一方向延伸之凸面，以及將每個透鏡 單元之第一端面之第一邊之長度設置為長於第二端面之第 '一邊之長度，從而可使得包含該光場調節裝置且設置於道 路邊之照明裝置所產生之光場發生偏移，以使該光場完全 位於道路内並達成提高照明裝置之光利用效率之目的。 【實施方式】 下面結合圖式對本發明作進一步之詳細說明。 請參閱圖3，本發明第一實施例提供之一種燈罩10， 〇其作為一種光場調整裝置，包括複數透鏡單元11。 請一起參閱圖4,每個透鏡單元11包括一入光面110、 一出光面112,以及連接該入光面110與該出光面112之一 第一端面114與一第二端面116,該入光面110與該出光面 112相對，該第一端面114與該第二端面116相對。該每個 透鏡單元11之第一端面114貼附於與該透鏡單元11相鄰 之透鏡單元11之第二端面116上，從而形成一透鏡陣列。 _ 本實施例中，該入光面110為一凹面，該出光面112 ❹ 為一凸面。其中，該凹面為沿X方向延伸之柱狀凹面，該 凸面為沿Y方向延伸之柱狀凸面，該X方向與該Y方向相 互垂直。進一步地，定義垂直於XY平面為Z方向，如圖4 所示，該第一端面114具有平行於Z方向之第一邊L1;對 應地，該第二端面116亦具有平行於Z方向之第一邊L2, 該第一邊L1之長度大於第一邊L2之長度。 進一步地，該燈罩10中，每個透鏡單元11之入光面 110上還配置至少一條狀微結構111。該微結構111沿X方 8 200928514 向延伸，且其沿垂直於X方向之截面形狀為三角形，即該 條狀微結構111為一三角錐形條狀凸起。當然，該條狀微 •結構111亦可定義為由凹面110向每個透鏡單元11内開設 之條狀凹槽。當然，該條狀微結構111之形狀還可根據需 要作出適當變更，其截面形狀可設置為圓弧形、梯形，或 前述三角形、圓弧形、梯形等之任意組合等。 請參閱圖5，本發明第二實施例提供之照明裝置40， 其採用上述之燈罩10對光源產生之光場作調整。該照明裝 Ο置40包括至少一光源41，如至少一 LED光源等，及一本 發明第一實施例提供之燈罩10。該至少一光源41與該燈罩 10相對設置。工作時，至少一光源41所發出之光線經由燈 罩10之入光面110入射至透鏡單元11内，進而由透鏡單 元11之出光面112出射。 本實施例中，至少一光源41之數目設置為複數個，且 該複數LED光源41分別相對燈罩10中之複數透鏡單元11 設置。進一步地，該照明裝置40還包括一反射板42。該反 ❹ 射板42包括複數沿Y方向延伸且沿X方向平行排列之梯 形凹槽420,該複數LED光源41藉由與其對應之複數電路 板410設置於該複數梯形凹槽420之底部且形成複數線性 LED光源陣列。該梯形凹槽420之側壁422形成有反射膜 以反射至少一光源41發出之光線。 該入光面110上之凹面可擴展至少一光源41發出之光 線沿Y方向之輻射範圍，同時使至少一光源41發出之光線 之沿Y方向產生一定之偏轉。具體地，該凹面可使入射到 9 200928514 其上之光線於γ方向上產生輻射狀偏轉，即由凹面之底部 向該凹面較高之兩端偏轉，以使光線經由該透鏡單元打折 •射後，其於Υ方向上之輻射範圍變大，即，該透鏡單元η 之凹面拓展了至少一光源41於Υ方向上之輻射範圍。 該透鏡單元11上之凸面可壓縮皂少一光源41發出之 光線沿X方向之輻射範圍，即該凸面可使從其上出射之光 線於該X方向上由該凸面之兩端向其頂部產生會聚狀偏 轉，從而使光線經由該透鏡單元1]L折射後，其於χ方向上 €>之輻射範圍變小，即，該凸面壓縮了至少一光源41於χ方 向上之輻射範圍。進一步地，由於該凸面連接於第一端面 η4與第二端面I16之間，而第一端面1U之第一邊L1之 長度=於第二端面116之第一邊匕2之長度’故，該凸面還 可使得至少一光源41發出之光線整體上沿χ方向產生一定 之偏移。 請參閱圖6,其示出至少一光源41發出之光線經由燈 ❹罩10透射後形成之光場。該光場大致呈一長條狀，由該光 場可看出，至少一光源41於¥方向上之幸畐射範圍大在於X 方向上之輕射範圍，且與圖工示出之近似圓對稱之光場相 比，該光場之中心光強度於X軸方向發生了偏移。另，由 於設置了條狀微結構出對至少—光源41發出之光線進行 折射，故，圖6不出之光場之光強度相較於圖1示出之近 似圓對稱之光場，其光強度分佈更加均勻。 參閱圖7,當該照明裝置40作為路燈設置於路 邊，以對道路_起照明作用時，由於照明裝置4〇所形成 200928514 .2光場之中心光強度向著又轴發生一定之偏移 照明：置4〇產生之光場均可位於該道路_二 之延〜申二ΥΓ方長條狀結構’其正對應於道路400 佈，從而提高照明裝置40之光利用效率。 _勾刀 :理解，本實施例中之照明震置4〇,其入光面⑽盥 之位置可互換，即可將凸面作為入光面ιι〇二 作為出光面112,只要將該照明裝置4〇設置於路邊後， 〇照明裝置40產生之光場位於該道路4〇〇 限於具體實施例。 並不局 :-步二，該凹面及該凸面除了可為第一及第二實施 。，用之早一曲率半徑之柱狀凹面及柱狀凸面外，其亦 :為具有不同曲率半徑之凹面及凸面；另，藉由變換^少 透鏡早兀η之數目及至少一透鏡單元^申條狀微結構 ◎ 射目等’可使照明裝置⑽產生之光場具有不同之輕 射範圍與光均勻度。 請—併參閱圖8及圖9,本發明第三實施例之光場調節 0其與本發明第一實施例之燈罩大致相同，差別 僅在於：該光場調節裝置50中，與至少一透鏡單元51中 之出光面512相對之入光面510設置為平面。 可理解，當該光場調節裝置50取代燈罩1〇應用於 發日月g 4 + 乐一貫施例之照明裝置40，從而形成本發明第四實施 、、之…、明装置6〇時（如圖9所示），其同樣可使得至少一光 〜41發出之光場之中心光強度向著X軸方向發生偏移，從 11 200928514 而使照明裝置6 0設置於路邊後，其產生之光場位於道路内。 本發明第一、第三實施例所提供之燈罩10、50，其藉 * 由設置具有入光面110、510及出光面112、512之透鏡單 元11、51，並將該出光面112、512設置為沿Υ方向延伸 之凸面，以及將每個透鏡單元11、51 .之第一端面114、514 之第一邊L1設置為長於第二端面116、516之第一邊L2， 可使得設置於道路邊之本發明第二、第四實施例所提供之 照明裝置40、60(其分別包含燈罩10、50)所產生之光場之 〇中心光強度向著X軸發生一定之偏移，以使該光場完全位 於道路内並達成提高照明裝置40、60之光利用效率之目的。 綜上所述，本發明確已符合發明專利之要件，遂依法 提出專利申請。惟，以上所述者僅為本發明之較佳實施方 式，自不能以此限制本案之申請專利範圍。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】 圖1係先前之一種近似圓對稱光場之模擬圖。 圖2係先前之路燈之結構示意圖。 圖3係本發明第一實施例所提供之光場調節裝置之結 構示意圖。 圖4係圖3所示光場調節裝置之透鏡單元之結構示意 圖。 圖5係本發明第二實施例所提供之照明裝置之結構示 意圖。 12 200928514 圖6係圖5所示照明裝置產生之光場之模擬圖。 圖7係將圖5所示照明裝置作為路燈設置於路邊之示 .意圖。 圖8係本發明第三實施例所提供之光場調節裝置之結 構示意圖。 圖9係本發明第四實施例所提供之照明裝置之結構示 意圖。 【主要元件符號說明】 〇光場調節裝置 10、50 路燈 20 透鏡單元 11、51 道路 22 > 400 入光面 110 、 510 照明裝置 40 ' 60 條狀微結構 111 光源 41 出光面 112、512 反射板 42 第一端面 114 、 514 電路板 410 弟—端面 116 、 516 梯形凹槽 420 第一邊 L1 側壁 422 ❹ 第二邊 L2 13200928514 IX. Description of the invention: "Technical field of invention] The present invention relates to a light field adjusting device, and more particularly to a light field adjusting device having better light utilization efficiency, and illumination using the light field adjusting device Device. [Prior Art] At present, the Light Emitting Diode (LED) is gradually replacing the cold cathode fluorescent lamp (Cold Cathode Fluorescent) due to its good light quality (that is, the spectrum emitted by the LED light source) and high luminous efficiency. Lamp, CCFL) is a illuminating element in lighting devices. For details, see "Solid-State Lighting:" by Michael S. Shur et al., Proceedings of the IEEE, Vol. 93, No. 10 (October 2005). Toward Superior Illumination" article. For an illumination device that previously uses a light-emitting diode as a light-emitting element, it generally has a light field of approximately circular symmetry (as shown in FIG. 1 ), and the light intensity of the center of the light field is strong, and the light diffused from the center to the periphery The intensity is getting weaker and weaker', but this type of light field is not always needed in real life. For example, for the previous street lamp 20, it is usually placed on both sides of the road 22, so the light field generated by the street lamp 20 cannot be completely Located within the road 22 (shown in Figure 2), the street light 20 does not achieve better light utilization efficiency. In view of the above, it is necessary to provide a light field adjusting device having a better light utilization efficiency and an illuminating device using the same. SUMMARY OF THE INVENTION Hereinafter, a light field adjusting device will be described by way of example and the light field 6 200928514_adjustment=illumination device having better light gain. A light field adjusting device, A sheep unit package, comprising a plurality of lens units, each μ includes a light incident surface, an end surface of the mother lens, and a front surface of the first end surface, - the first The two end faces are respectively connected to the light-incident surface, and the first end face and the first end face of the element are attached to the transparent surface, and the first lens has two perpendicular to the first, the first end face And the first end of the second end face: the two sides: and each of the (10) degrees. "The first side of the scorpion is a lighting device, including at least one adjustment device, the more the original 'is used to emit light; the other light includes multiple r 乂 pairs' the light field adjustment device I The plurality of lenses are π 'each lens unit includes a light-incident surface opposite to the light-emitting surface, a first-to-the-shoulder-side surface, and a first end surface opposite to the first end surface The two end faces are respectively connected to the light entrance surface and the light exit surface, and each lens lens is connected to the lens unit adjacent to the mirror unit j == one surface is attached to the transparent surface i, :=? The light-emitting surface has a convexity extending in the first direction, and the end surface and the second end surface respectively have two first sides perpendicular to the first side of the first end surface of each lens unit, and the length of the first side is greater than the first end surface The length of the first side. " Compared with the prior μ technology, the light field adjusting device sets a lens unit having a " and a light exiting surface, and sets one of the light incident surface and the light exiting surface 200928514 to be in the first direction Extending the convex surface, and setting the length of the first side of the first end surface of each lens unit to be longer than the length of the first side of the second end surface, thereby enabling the illumination device including the light field adjusting device and disposed on the side of the road The generated light field is shifted so that the light field is completely located in the road and the purpose of improving the light utilization efficiency of the illumination device is achieved. [Embodiment] The present invention will be further described in detail below with reference to the drawings. Referring to FIG. 3, a lampshade 10 according to a first embodiment of the present invention, as a light field adjusting device, includes a plurality of lens units 11. Referring to FIG. 4 together, each lens unit 11 includes a light incident surface 110, a light exit surface 112, and a first end surface 114 and a second end surface 116 connecting the light incident surface 110 and the light exit surface 112. The smooth surface 110 is opposite to the light exit surface 112, and the first end surface 114 is opposite to the second end surface 116. The first end face 114 of each lens unit 11 is attached to the second end face 116 of the lens unit 11 adjacent to the lens unit 11, thereby forming a lens array. In this embodiment, the light incident surface 110 is a concave surface, and the light emitting surface 112 is a convex surface. The concave surface is a columnar concave surface extending in the X direction, and the convex surface is a columnar convex surface extending in the Y direction, and the X direction is perpendicular to the Y direction. Further, the definition is perpendicular to the XY plane in the Z direction. As shown in FIG. 4, the first end surface 114 has a first side L1 parallel to the Z direction; correspondingly, the second end surface 116 also has a parallel to the Z direction. On one side L2, the length of the first side L1 is greater than the length of the first side L2. Further, in the lampshade 10, at least one strip-shaped microstructure 111 is disposed on the light incident surface 110 of each lens unit 11. The microstructure 111 extends along the X-square 8 200928514, and its cross-sectional shape perpendicular to the X-direction is triangular, that is, the strip-shaped microstructure 111 is a triangular-tapered strip-like projection. Of course, the strip-shaped structure 111 can also be defined as a strip-shaped recess opened by the concave surface 110 into each lens unit 11. Of course, the shape of the strip-shaped microstructures 111 can be appropriately changed as needed, and the cross-sectional shape thereof can be set to a circular arc shape, a trapezoidal shape, or any combination of the aforementioned triangular, circular arc, trapezoidal or the like. Referring to FIG. 5, a lighting device 40 according to a second embodiment of the present invention uses the above-described lampshade 10 to adjust the light field generated by the light source. The lighting device 40 includes at least one light source 41, such as at least one LED light source, etc., and a lampshade 10 provided by the first embodiment of the present invention. The at least one light source 41 is disposed opposite the light cover 10. During operation, at least one of the light rays emitted from the light source 41 enters the lens unit 11 through the light incident surface 110 of the globe 10, and is further emitted by the light exit surface 112 of the lens unit 11. In this embodiment, the number of at least one light source 41 is set to a plurality, and the plurality of LED light sources 41 are respectively disposed opposite to the plurality of lens units 11 in the lamp cover 10. Further, the illumination device 40 further includes a reflector 42. The anti-reflection plate 42 includes a plurality of trapezoidal grooves 420 extending in the Y direction and arranged in parallel along the X direction. The plurality of LED light sources 41 are disposed at the bottom of the plurality of trapezoidal grooves 420 by a plurality of circuit boards 410 corresponding thereto. A complex linear LED light source array. The side wall 422 of the trapezoidal groove 420 is formed with a reflective film to reflect the light emitted by at least one of the light sources 41. The concave surface on the light incident surface 110 extends the radiation range of the light emitted by the at least one light source 41 in the Y direction, and at the same time causes a certain deflection of the light emitted by the at least one light source 41 in the Y direction. Specifically, the concave surface can cause the light incident on the 9 200928514 to be radially deflected in the γ direction, that is, from the bottom of the concave surface to the higher end of the concave surface, so that the light is deflected through the lens unit. The radiation range in the Υ direction becomes larger, that is, the concave surface of the lens unit η expands the radiation range of at least one light source 41 in the Υ direction. The convex surface on the lens unit 11 can compress the radiation range of the light emitted by the light source 41 in the X direction, that is, the convex surface can generate light emitted therefrom from the two ends of the convex surface to the top thereof in the X direction. The convergence is deflected such that after the light is refracted by the lens unit 1] L, the radiation range in the χ direction becomes smaller, that is, the convex surface compresses the radiation range of the at least one light source 41 in the χ direction. Further, since the convex surface is connected between the first end surface η4 and the second end surface I16, and the length of the first side L1 of the first end surface 1U is the length of the first side edge 2 of the second end surface 116, The convex surface may also cause the light emitted by the at least one light source 41 to have a certain offset along the χ direction as a whole. Referring to Figure 6, there is shown a light field formed by at least one light source 41 being transmitted through the lamp housing 10. The light field is substantially in the shape of a strip. It can be seen from the light field that the range of the at least one light source 41 in the direction of the ¥ is large in the range of the light in the X direction, and is similar to the circle shown by the drawing. Compared with the symmetrical light field, the central light intensity of the light field is shifted in the X-axis direction. In addition, since the strip-shaped microstructure is disposed to refract at least the light emitted by the light source 41, the light intensity of the light field not shown in FIG. 6 is compared with the light field of the approximately circular symmetry shown in FIG. The intensity distribution is more uniform. Referring to FIG. 7, when the illuminating device 40 is disposed on the roadside as a street light to illuminate the road, the central light intensity of the 200928514.2 light field formed by the illuminating device 4 一定 is offset to the axis. The light field generated by the set 4 均可 can be located on the road _ 2 延 延 申 申 ΥΓ 申 申 申 申 申 申 申 申 申 申 ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' _Hook knife: Understand that the illumination in this embodiment is 4 〇, and the position of the light-incident surface (10) 可 can be interchanged, and the convex surface can be used as the light-emitting surface ιι〇2 as the light-emitting surface 112, as long as the illumination device 4 is used. After the 〇 is placed on the roadside, the light field generated by the 〇 illuminating device 40 is located on the road 4, which is limited to the specific embodiment. Not in the following steps: - Step 2, the concave surface and the convex surface may be the first and second implementations. In addition to the cylindrical concave surface and the cylindrical convex surface of the curvature radius, which are also concave and convex surfaces having different radii of curvature; and, by changing the number of the early lenses η and at least one lens unit The strip microstructure ◎ the projectile, etc. can make the light field generated by the illumination device (10) have different light-radiation ranges and light uniformity. Please refer to FIG. 8 and FIG. 9. The light field adjustment 0 of the third embodiment of the present invention is substantially the same as the lampshade of the first embodiment of the present invention, except that the light field adjusting device 50 is at least one lens. The light-emitting surface 512 of the unit 51 is disposed in a plane with respect to the light-incident surface 510. It can be understood that when the light field adjusting device 50 is used in place of the lampshade 1 〇, it is applied to the illuminating device 40 of the present invention, thereby forming the fourth embodiment, the ... FIG. 9), which can also make the central light intensity of the light field emitted by at least one light to 41 shift toward the X-axis direction, and the light generated by the illumination device 60 is set on the roadside from 11 200928514. The field is located in the road. The lampshade 10, 50 provided by the first and third embodiments of the present invention is provided with lens units 11, 51 having light-incident surfaces 110, 510 and light-emitting surfaces 112, 512, and the light-emitting surfaces 112, 512 are provided. Provided as a convex surface extending in the Υ direction, and setting the first side L1 of the first end faces 114, 514 of each lens unit 11, 51 to be longer than the first side L2 of the second end faces 116, 516, The center light intensity of the light field generated by the illumination devices 40, 60 (including the lampshades 10, 50 respectively) provided by the second and fourth embodiments of the present invention on the road side is shifted to the X axis so that The light field is completely located in the road and achieves the purpose of improving the light utilization efficiency of the illumination devices 40, 60. In summary, the present invention has indeed met the requirements of the invention patent, and has filed a patent application according to law. 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 present invention are intended to be included within the scope of the following claims. ^ [Simple description of the diagram] Figure 1 is a simulation of a similar circularly symmetric light field. Figure 2 is a schematic view of the structure of the previous street lamp. Fig. 3 is a view showing the configuration of a light field adjusting device according to a first embodiment of the present invention. Fig. 4 is a view showing the structure of a lens unit of the light field adjusting device shown in Fig. 3. Fig. 5 is a view showing the construction of a lighting device according to a second embodiment of the present invention. 12 200928514 FIG. 6 is a simulation diagram of a light field generated by the illumination device shown in FIG. 5. Fig. 7 is a view showing the illumination device shown in Fig. 5 as a street lamp on the roadside. Fig. 8 is a view showing the configuration of a light field adjusting device according to a third embodiment of the present invention. Fig. 9 is a view showing the construction of a lighting device according to a fourth embodiment of the present invention. [Description of main component symbols] Xenon field adjustment device 10, 50 street lamp 20 Lens unit 11, 51 Road 22 > 400 Light-incident surface 110, 510 Illumination device 40 '60 Strip microstructure 111 Light source 41 Light-emitting surface 112, 512 Reflection Plate 42 first end face 114, 514 circuit board 410 brother-end face 116, 516 trapezoidal groove 420 first side L1 side wall 422 ❹ second side L2 13