200409977 玖、發明說明： 【發明所屬之技術領域】 本發明係關於一種表面發光裝置，適合用於例如交通號 誌，展示廣告等之相當大型背部發光類型顯示器，及置於 建築室内平面或戶外平面，例如天花板’地板，盥之 平面照明裝置應用。 【先前技術】 稱為表面發光裝置或薄片類型發光主體之裝置可由發光 表面整個區域一致地發《。此冑裝置於…丁國「祭專利申請 案第1 〇·5〇6725號之公開日本譯文，日本專射請案早衫 1-45002，η_1544〇6，4_1〇1639號等中揭示。 於這些公開案揭示之薄片_型發光主體通常具下列結構 。具體地’這些薄片類型發光主體包含⑴—主體，里界定 =導引Μ且具至少-發光表面，⑺—光源，其置於主體 一寸引二間外，且提供光線至光導引空間，及（3)一光一致 2裝置’當提供至光導引空間之光線經由發光表面發射朝 α王外時，其可於發光表面幾乎整個區域獲得一致亮度 。例如該主體為盒狀’發光表面外之其他側面為不透：。又 且2體界定之光導引空間幾乎為麵形平行六面體形狀， "、二疋長度，見度’與高度。-般而言，具最大區域之至 ^ —側面（例如，光導引而間 、 、 尤寸幻工間万；纟化向炙平行兩侧面，及於橫 一出仃《兩側面)為發射面。主體包含放置為覆蓋發射面之 一傳輻板。光傳輸板表面為發光表面。 85109 200409977 光源通¥為線光源，例如螢光管或冷陰極管。光源於周 圍表面整個區域及縱向一致地發光。於使用線光源情形， 線光源通常放置為使線光源與入射面及發光表面皆平行， =使發光表面亮度變為一致。線光源通常置於與發射面（發 光表面）直角交叉之四側面至少其中之一附近。於該情形， 入射面與發射面外心其他側面，通常以由不透光板或薄片 形成之側面構件覆蓋。 發光表面亮度於靠近光源區域最高，且隨著距離光源之 2 =而減少，因此不一致地發光。因此，需使用光一致化 裝置，而得以於發光表面整個區域獲得一致亮度。光—致 7裝置為一棱鏡薄片或白色半透光漫射傳輸薄膜，如上述 公=案所揭示。結合使用該薄片與薄膜尤其有效。光—致 化^置放置為實質上一致地覆蓋發射面整個區域。例如， -漫射傳輸薄膜置於光傳輸板表面，且一棱鏡薄片置於光 傳輸板背®，使得由光源提供之光線傳輸通過棱鏡薄片虛 :射傳輸薄膜，並向外發射。棱鏡薄片通常由透光樹脂形 且具-棱鏡表面，於其上形成複數個微小平行棱鏡。 :作為線光源，包含側面發射類型光纖或中空光管之線光 原作為光學傳輸為亦為有用的。光學 傳輪态m常具圓柱狀 t面）。於縱向由光學傳輸器—頂端引人光學傳輸 當光線於縱向傳輸朝向另—頂端時，逐漸由周 :表面外漏，藉此光線由周圍表面整個區域明亮地發射。 例如日本專利中請案早期公開第叫伽㉘揭示之, 例，其中側面發射類型光纖作為表 軏 以九衣置足線光源。 85109 200409977 曰本專利第2628858號與日本專利申請案早期公開第 10-82902與2000-1 37 105號揭示使用由光管構成之光學傳輸 器之線光源，該光管藉由圓柱狀地捲起棱鏡薄片而形成。 如這些公開案所揭示，光管通常形成為使得稜鏡薄片之棱 鏡表面朝外，且圓柱之内表面由棱鏡薄片之平坦表面形成。 藉由使用置於主體外光源（邊緣發光光源）與光一致化裝 置，可一致地發光之表面發光裝置應用，乃限於小型發光 裝置（例如，個人電腦液晶顯示器之背面光）。具體地，因發 光表面區域相當小（通常為80 X 80公分或更少），這些表面發 光裝置不適合藉由水平地安排複數個光傳輸板，形成具大 區域之光傳輸板，並由大型光傳輸板之表面發光，以作為 置於建築等室内平面之相當大型顯示器或平面照明裝置。 其理由如下。 锻尤衣囱党度具有於靠近光源區域最高，且隨著距離 源4增加而減少之傾向。於發光表面區域增加之情形， 其，於表面發光裝置之發光表面長度大於寬度之情形（光 引空間之長度大於寬度），沿發光表面—致地放置之光— 化裝置未有效地增加亮度—致性。例如，於絲在縱向 近光導引空間-邊緣放置之情形，於縱向之入射面，及 入射面相對之一侧面間之距離將增加。結果，靠近入射 區域，及靠近與入射面相對一侧面區域間之亮度差傾向 加。為消除亮度不—致，漫射傳輪薄膜之漫射性需盡可 增加。然而’此導致漫射傳輸薄膜之光透射比降低，從 使發光表面亮度降低。增加光導引空間高度（增加深旬對: 85109 200409977 亮度一致性為有效地。然而，此導致整個表面發光裝置佔 據之空間增加。尤其，於藉由將表面發光裝置併入建築隔 牆（地板，牆壁，或天花板），由室内平面發光之情形，因隔 牆深度(厚度）受到限制，由建築設計觀點，表面發光裝置之 高度需盡可能降低。 此外，為避免亮度降低而增加光源發光亮度或光源數目 ，將增加功率消耗，這些方法由能源節約等觀點為不適宜 的。於光源在橫向靠近光導引空間一邊緣放置之情形，入 射面及與入射面相對側面間之距離變得相當小，從而使靠 近入射面區域及靠近與入射面相對侧面區域間之亮度差異 降低。於該情形，需具有與光導引空間相同長度之相當長 線光源。因需大量電力以由此一光源明亮地發光，功率消 耗傾向增加。 因此，本發明提供一表面發光裝置，即使表面發光裝置 之發光表面長度大於寬度，可避免功率消耗之增加，且可一 致地發光而不降低發光表面亮度或增加光導引空間高度。 【發明内容】 本發明提供一表面發光裝置，包含界定一光導引空間之 主體，通常為具特定長度，寬度，與高度之矩形平行六面 體形狀，及一光源安排於主體外以提供光線至光導引空間 ，其中由光源提供之光線，通過由光導引空間至少一側面 形成之入射面，可經由與入射面直角相交之側面形成之發 射面發射至外部，主體包含一光傳輸構件，放置為覆蓋發 射面，光傳輸構件包含一光傳輸板，其具面向光導引空間 85109 200409977 之一背面，及與背面相對之一矣 、 表面’及置於光傳輸板背面 (一棱鏡薄片，光傳輸板之表面 ’ t光表面，入射面為於 縱向與光導引空間相對側面之一， + _ 先傳輪板包含一漫射濾 光斋’其覆蓋靠近光源之光億於4主 、、 尤傳輻板表面特定區域，遠離光 源足光傳輸板表面其餘區域夫脅 ^丄— 、、 次未復盍度射濾光器，漫射濾光 态由一薄片形成’於其中声最 曰宜復放層凌射傳輸薄膜，且漫 射傳輸薄膜層數目於靠近光源士 原〜£域取多，且隨著距離光 源之增加而逐漸減少，由於# 田万；先碌度射減少緣故，使得光透 射比隨著距離光源之增加而增加。 個較=二本發明之表面發光裝置，光傳輸板包含複數 :万塊光傳輸板’沿光導引空間縱向水平安排，使得方塊 光傳輸板邊緣彼此接觸，漫射、、卢 _ — /又射濾先益霄質地覆蓋靠近光源 出現 < 万塊光傳輸板特定數 … 疋數目〈表面整個區域，漫射濾光200409977 发明 Description of the invention: [Technical field to which the invention belongs] The present invention relates to a surface light-emitting device, suitable for use in, for example, a relatively large back-illuminated display such as traffic signs, display advertisements, etc., and placed on the indoor or outdoor plane of a building , Such as ceiling 'floor', flat lighting applications. [Prior art] A device called a surface light-emitting device or a sheet-type light-emitting body can be uniformly issued from the entire area of the light-emitting surface. This device is disclosed in Ding Guo's "Japanese Patent Application No. 10.50056725's published Japanese translation, Japan's exclusive shooting request morning shirt 1-5002, η_1544〇6, 4_10101639, etc." The flake-type light-emitting bodies disclosed in the publication generally have the following structure. Specifically, 'these flake-type light-emitting bodies include ⑴—main body, which defines = guide M and has at least—light-emitting surface, ⑺—light source, which is placed on the main body one inch. Two rooms outside, and provide light to the light guide space, and (3) a light consistent 2 device 'When the light provided to the light guide space is emitted through the light emitting surface to the outside of α, it can cover almost the entire area of the light emitting surface Obtain consistent brightness. For example, the main body is box-shaped, and the other sides outside the light-emitting surface are opaque :. Moreover, the light guiding space defined by the two bodies is almost a parallelepiped shape, " Degrees' and heights.- In general, with the largest area up to ^ — the side (for example, light-guided space, high-end, and large-scale imaginary work space; 纟 化 向 向 向 一 侧面, 侧面, 于 一, 仃Both sides) are emission surfaces. The main body contains One of the radiation transmitting plates covering the emitting surface. The surface of the light transmitting plate is a light emitting surface. 85109 200409977 The light source is a linear light source, such as a fluorescent tube or a cold cathode tube. The light source emits light uniformly over the entire area of the surrounding surface and vertically. In the case of a linear light source, the linear light source is usually placed so that the linear light source is parallel to the incident surface and the light emitting surface, so that the brightness of the light emitting surface becomes uniform. The linear light source is usually placed on at least one of the four sides crossing at right angles to the emitting surface (light emitting surface). In this case, the other sides of the incident surface and the outer surface of the emission surface are usually covered by side members formed of opaque plates or sheets. The luminous surface has the highest brightness near the light source, and as the distance from the light source is 2 =, Reduced, so it emits light inconsistently. Therefore, it is necessary to use a light uniformization device to obtain uniform brightness over the entire area of the light-emitting surface. The light-to-7 device is a prism sheet or a white translucent diffuse transmission film, as described above. The case is disclosed. The combination of the sheet and the film is particularly effective. The photo-chemical treatment is placed to substantially uniformly cover the emission surface. For example,-a diffuse transmission film is placed on the surface of the light transmission plate, and a prism sheet is placed on the back of the light transmission plate, so that the light provided by the light source is transmitted through the prism sheet to the virtual transmission film and emitted outward. The prism sheet is usually made of light-transmitting resin and has a prism surface, on which a plurality of tiny parallel prisms are formed.: As a linear light source, a linear light source including a side-emitting optical fiber or a hollow light pipe is also useful as an optical transmission The optical transmission wheel state m often has a cylindrical t-face). In the longitudinal direction, the optical transmitter is introduced to the top to induce optical transmission. When the light is transmitted in the longitudinal direction toward the other end, it gradually leaks from the periphery: the surface leaks out, so that the light passes from the surrounding. The entire area of the surface emits brightly. For example, Japanese Patent Application Gazette discloses early disclosure, for example, in which a side-emission type optical fiber is used as a watch, and a full-line light source is used. 85109 200409977 Japanese Patent No. 2628858 and Japanese Patent Application Laid-Open Nos. 10-82902 and 2000-1 37 105 disclose a linear light source using an optical transmitter constituted by a light pipe which is rolled up in a cylindrical shape The prism sheet is formed. As disclosed in these publications, the light pipe is generally formed such that the prism surface of the ridge sheet faces outward, and the inner surface of the cylinder is formed by the flat surface of the prism sheet. The use of surface light emitting devices that can emit light uniformly by using a light source (edge-emitting light source) placed outside the main body and a light-aligning device is limited to small light-emitting devices (for example, the back light of a personal computer liquid crystal display). Specifically, because the light emitting surface area is relatively small (usually 80 X 80 cm or less), these surface light emitting devices are not suitable for forming a light transmitting plate with a large area by arranging a plurality of light transmitting plates horizontally, and using a large light The surface of the transmission board emits light as a relatively large display or flat lighting device placed on an indoor plane such as a building. The reason is as follows. The forge of the forge robe has the highest degree in the area near the light source, and it tends to decrease as the distance from the source 4 increases. In the case where the light-emitting surface area increases, in the case where the length of the light-emitting surface of the surface light-emitting device is greater than the width (the length of the light-guiding space is greater than the width), the light-emitting device along the light-emitting surface does not effectively increase the brightness— Consistent. For example, in the case where Yu silk is placed in the longitudinal low-beam guiding space-edge, the distance between the incident surface in the longitudinal direction and the opposite side of the incident surface will increase. As a result, the difference in luminance between the area near the incident area and the area near the side opposite to the incident surface tends to increase. In order to eliminate the inconsistency of brightness, the diffusivity of the diffusion wheel film needs to be increased as much as possible. However, this causes a decrease in the light transmittance of the diffuse transmission film, thereby reducing the brightness of the light emitting surface. Increasing the height of the light guide space (increasing the depth of the pair: 85109 200409977 Brightness consistency is effective. However, this leads to an increase in the space occupied by the entire surface light-emitting device. In particular, by incorporating the surface light-emitting device into the building partition wall (floor , Wall, or ceiling), in the case of indoor flat light, due to the limitation of the depth (thickness) of the partition wall, from the perspective of architectural design, the height of the surface light-emitting device needs to be reduced as much as possible. In addition, to prevent the brightness from decreasing, increase the light source brightness Or the number of light sources will increase power consumption. These methods are not suitable from the viewpoint of energy saving. When the light source is placed laterally near one edge of the light guide space, the distance between the incident surface and the side opposite to the incident surface becomes equivalent. Small, so that the difference in brightness between the area near the incident surface and the area near the side opposite to the incident surface is reduced. In this case, a fairly long line light source with the same length as the light guide space is required. A large amount of power is required to brighten a light source Ground light emission, power consumption tends to increase. Therefore, the present invention provides a surface light emitting device Even if the length of the light-emitting surface of the surface light-emitting device is longer than the width, the increase in power consumption can be avoided, and the light can be emitted uniformly without reducing the brightness of the light-emitting surface or increasing the height of the light guide space. SUMMARY OF THE INVENTION The present invention provides a surface light-emitting device including: The subject that defines a light-guiding space is usually a rectangular parallelepiped with a specific length, width, and height, and a light source is arranged outside the body to provide light to the light-guiding space. The light provided by the light source, Through the incident surface formed by at least one side of the light guiding space, it can be emitted to the outside through the emitting surface formed by the side that intersects the incident surface at right angles. The main body includes a light transmitting member and is placed to cover the emitting surface. A transmission plate having a back surface facing the light guide space 85109 200409977 and a surface opposite the back surface, a surface 'and a light transmission plate (a prism sheet, a surface of the light transmission plate't a light surface, an incident surface) For the longitudinal and one of the opposite sides of the light-guiding space, the first pass wheel plate contains a diffuse filter The light near the light source is in a specific area on the surface of the main transmission plate, and is far away from the remaining area of the light transmission plate surface of the light source. 丄, ,,,,,, and 盍, the non-repeated light filter, the diffuse filter state is A thin film is formed in which the most appropriate layer is a diffusive transmission film, and the number of diffusion transmission film layers is more near the light source, and it gradually decreases as the distance from the light source increases. The reason is that the progressive radiation is reduced, so that the light transmittance increases as the distance from the light source increases. Compared with the surface light-emitting device of the present invention, the light transmission plate includes a plurality of: 10,000 light transmission plates along the light guide space. Vertical and horizontal arrangement, so that the edges of the square light transmission plate contact each other, diffuse, and Lu _ — and then filter to cover the near surface of the light source appears <specific number of 10,000 light transmission plates ... 疋 number <the entire area of the surface, diffuse Radiation filtering
斋未復盖运離光源出現之直I 、’、 束光傳輪I板表面，且漫射 傳輸薄膜層數目於靠近井湄> 、 、九/原<万塊光傳輸板最多，且隨著 距離光源之增加而逐漸減少。 方塊光傳輸板間之界線較佳地㈤ 邊缘。光奸m彳m Mu®漫射傳輸薄膜 =入先料構件Μ地由方塊光傳輸構件組合構成，每 已3万塊光傳輸板。棱料片較佳地由 組合構成。棱鏡薄片之分到泛去、杜1 年斤刀j片 w、 刀4片較佳地置於方塊光傳輸板上 以形成万塊光傳輸構件。 於本發明之表面發弁裝 ,^ . — :先私且，王體較佳地由主體單元组合 开/成’母個包含一方墙异值 尤先傳輛構件，且幾乎為矩形平行六 面形狀。每個主體單元 狂地具万塊空間於其中。複 85109 -10- 200409977 數個方塊空間較佳地光學地連接以形成光導引空間。 【實施方式】 於本發明之表面發光裝置，由薄片形成之漫射濾光器， 於其中層豐複數層漫射傳輸薄膜，僅置於靠近光源之特定 區域，由於光線漫射降低緣故，使得光透射比隨著距離光 源 < 增加而增加。具體地，光傳輸板具漫射濾光器，其覆 盖光傳輸板表面靠近光源之特定區域。光傳輸板表面遠離 光源〈其餘區域未覆蓋漫射濾光器。漫射傳輸薄膜層數目 於罪近光源區域最多，且隨著距離光源之增加而逐漸減少 ，由於光線度射降低緣故，使得光透射比隨著距離光源之 增加而增加。此確保由靠近光源之區域，至遠離光源之區 域，可於相當大區域内增加表面發光之一致性，而不降低 發光表面亮度或增加光導引空間高度。 万；本發明之表面發光裝置，因漫射濾光器未置於光傳輸 板表面遠離光源之區域，可有效地避免發光表面亮度下降 。此外，因層疊複數層漫射傳輸薄膜，可避免由靠近光源 區域外漏之光線量不必要的增加，且藉由有效地利用薄膜 之度射傳輸效應，未降低靠近光源區域發光之一致性。 於漫射傳輸薄膜僅置於靠近光源區域之情形，由靠近光 源區域外漏（光線量將不必要地增加，且該區域之亮度過 度地增加。結果，由光源提供之光線未抵達遠離光源之區 域，使得遠離光源區域之亮度傾向降低。於漫射傳輸薄膜 〆致地置S才目當靠近光源之特定區域，包t最靠近區域之 情形’放置漫射傳輸薄膜區域之亮度傾向降低。因此，發 85109 -11 - 200409977 光一致性於兩情形皆無法有效地增加。 因此，為增加發光一致性，漫射濾光器之形成為使得光 透射比由於光線漫射降低緣故，隨著距離光源之增加而逐 漸&加為使光學特性以此方式逐漸地改變，本發明之漫 射濾光斋由一薄片形成，於其中層疊複數層漫射傳輸薄膜 。漫射傳輸薄膜層之數目於靠近光源之特定區域最多，且 隨著距離光源之增加而減少。 入射面為光導引空間於縱向之兩相對側面其中之一。因 此即使表面盔光裝置 < 發光表面長度大於寬度（光導引空 間之長度大於寬度），不需使光源長度與光導引空間長度相 同，從而可避免功率消耗之增加。 較佳地，於漫射傳輸薄膜層數目最多之區域，漫射濾光 态之可見光透射比為5%或更多，且於漫射傳輸薄膜層數目 為一（區域為60%或更少。若可見光透射比小於5%，發光 一致性可能降低，因靠近光源區域之亮度將降低。若於漫 射傳輸薄膜層數目為一之區域，可見光透射比超過6〇%， 發光一致性可能降低，因於漫射傳輸薄膜層數目相當小之 區域亮度將增加。因此，於漫射傳輸薄膜層數目最多之區 域’漫射濾光器之可見光透射比尤其較佳地為6 %或更多， 且於漫射傳輸薄膜層數目為一之區域為50%或更少。 用於本說明書之可見光透射比，為在可見光區域使用分 光光度計測量之光透射比（波長區域·· 430-640奈米）。可見 光反射比為在可見光區域使用分光光度計測量之光反射比 。具體地’在可見光透射比或反射比測量值為特定值或更 85109 -12- 200409977 多 < 情形（或一特定值或更少，或小於一特定值），意味整個 波長區域之測量值（通常由光譜分伟決定），為一特定值或更 多（或一特定值或更少，或少於一特定值）。 表面發光裝罾 本發明之一較佳具體實施例於下參照圖式描述。圖1圖表 式地顯示本發明之表面發光裝置（1 )。圖1為與主體長度及鬲 度方向平行之截面圖式。圖2為圖1所示之表面發光装置（1) 之平面圖式，由發光表面頂部觀察。於圖2，省略圖1所示 用以復蓋光源（3)之反射板（3 0 )，使得光源（3)露出。反射板 (3 0)之細節於稍後描述。 本發明之表面發光裝置具一特定長度（L)，寬度（W)，與 高度（H)，且包含由六侧面所包圍，幾乎為矩形平行六面體 形狀（一光導引空間（20)。表面發光裝置（！）包含一主體（2) ’其界足光導引空間（20)，及置於主體（2)外之光源（3)，並 提供光線至光導引空間（20)，如圖所示。由光源（3)提供之 光線通過由光導引空間（2〇)侧面形成之入射面（2〇1)，經由 與入射面（201)直角相交之發射面（2〇2)，向外發射。圖中所 示 < 光源（3)為一線光源，長度約與光導引空間之寬度（界) 相同。線光源放置為幾乎與發射面（2〇2)及入射面（2〇1)平行 ’以確保發光表面之亮度為一致的。 王體（2)包含一光傳輸構件（21)，放置為覆蓋發射面（2〇2) 。用於圖1所示裝置之光傳輸構件（21)包含一光傳輸板（4) ，具面向光導引空間（20)之背面（41)，及與背面（41)相對之 表面（42)，及放置為與光傳輸板（4)背面（41)接觸之稜鏡薄片 85109 -13 - 200409977 (5)，如圖3所示。於該裝置，光傳輸板之表面（42)為發光表 面。圖3為顯示靠近光源（3)區域之放大截面圖式。於圖3， 省略覆蓋光源（3)之反射板（30)，以使光源（3)露出。 光傳輸板（4)可為透光板或漫射傳輸板，在光傳輸板（4) 傳輻光線範圍内。光傳輸板（4)可著色。光傳輸板（4)通常使 用透光材料形成，例如玻璃或塑膠。漫射傳輸光傳輸板可 藉由結合由透光材料形成之平板與漫射傳輸層而形成。漫 射傳輸層通常藉由散佈無機顏料或聚合物微粒於由透光材 料，例如聚合物形成之層内而形成。漫射傳輸半透光層可 藉由將一混合物塑造為平板形狀而形成，於該混合物中無 機顏料或聚合物微粒散佈於透光材料。光傳輸板之可見光 透射比通常為60%或更多，且較佳地為7〇%或更多。可適當 地決定光傳輸板（4)之厚而無特定限制，取決於表面發光裝 置之應用。光傳輸板（4)之厚度通常為3_2〇釐米。棱鏡薄片 之細節於稍後描述。 入射面（2G1)為光導引空間⑽於縱向相對之兩側面之一 。光傳輸板(4)包含漫射濾光器（6)，其覆蓋靠近光源之光 傳輸板⑷表面特定區域（於圖2以斜線表示）。遠離光源（3 之光傳輸板表面其餘區域（圖2無斜線區域）未覆蓋漫❹光 器⑻。漫射遽光器通常經由膠黏劑，例如壓力敏感式膠黏 刎’黏合至光傳輸板表面。漫射滤光器⑹由一薄片形成， 於其中層疊複數層漫射傳輸薄膜。漫射傳輸薄膜為表面粗 糙（一塑膠薄膜，或為由樹脂 ^ ，專艇，於其中散佈 無機顏料或聚合物微粒。盔機軺祖 一 …、钱顔科（一範例為白色無機粉 85109 -14- 200409977 末。 圖中範例所示之漫射濾光器（6)由一薄片形成，於其中層 疊三層漫射傳輸薄膜薄片。漫射傳輸薄膜層數目於靠近光 源區域為二’且隨著距離光源之增加而逐漸減少至一，使 得光透射比由於光線漫射降低之緣故，隨著距離光源之增 加而增加。漫射傳輸薄膜通常經由膠黏劑，例如壓力敏感 式膠黏劑黏合及層疊。用於本發明之漫射濾光器光學特性 較佳地可輕易地逐漸改變。因此，欲層疊之漫射傳輸薄膜 層最大數目較佳地為三至五。 过光薄膜可黏附至未放置漫射遽光器區域之光傳輸板表 面。漫射濾光器通常不具有使發光表面外表損害之厚度。 然而，可放置與漫射濾光器具相同厚度之透光薄膜，以消 除放且/更射濾光器區域及未放置漫射濾光器區域間之差距 (度射mi厚度之差異）。於該情形，可放置—透光薄膜於 漫射傳輸薄膜層數目少之區域。透光薄膜之可見光透射比 週常為80%或更多，且較佳地為9〇%或更多。 於圖中所示範例，光傳輸板（4)由複數個安排於光導引空 印〇)縱向之方塊光傳輸板⑽）構成，使得邊緣彼此i觸二 度射遽光器（6)實質地覆蓋靠近光源⑶之特定數目方塊光 傳輸板表面整個區域（於圖中為三個）’但未覆蓋遠離光源之 其餘方誠職板（於时為四個）。漫射傳㈣膜層數目隨 著距離光源之增加而減少。具體地，漫射傳輸薄膜層數目 於靠近光源之方塊光傳輸板（術)上為三層，於與其相鄰之 方塊光傳輸板（4Qb)上為兩層，且於由光源數來之第三方塊 85109 -15 - 200409977 光傳輸板（40c)上為一層。 於層叠複數層漫射傳輸薄膜之漫射濾光器，僅置於靠近 光源區域，使得光透射比於縱向逐漸增加之情形，由靠近 光源區域外漏之光量可適當地控制，從而可避免該區威亮 度過度地增加。因此，可有效地避免遠離光源區域亮度之 降低’從而可增加發光表面一致性。 放置漫射遽光器區域之決定通常為使得發光表面亮度最 大值（B)與最小值（D)之比（亮度比=B/D)為4或更小。亮度比 較佳地為3.5或更小，且尤其較佳地為3或更小。可藉由控 制漫射傳輸薄膜之可見光透射比而有效地降低亮度比。 於本發明之表面發光裝置，可藉由將漫射濾光器置於光 傳輸板表面而調整亮度一致性。具體地，放置漫射濾光器 區域之決定為得以獲致最佳亮度比，藉由組合表面發光裝 置，其中安裝裝置之地點未放置漫射濾光器，並藉由引起 表面發射測量亮度分佈。因此，可輕易地組合具相當大發 光表面（裝置。因此，與將光一致裝置置於光導引空間情 形相比，可顯著地改進使用性。作為將光一致裝置置於光 導引空間之範例，可提供複數個光漫射點，其中漫射程度 由、、從向非近光源處改變，位於與發光表面平行之光導引命 間底部。 ’又射濾光斋（6)通常藉由附著及層疊複數層具不同長度— 度射傳輸薄膜而形成，同時調準縱向之一邊緣，使得縱向 接近其他邊緣之層數目降低。此於下根據圖式所示範例描 逑。長度與一片方塊光傳輸板相同之第一漫射傳輸薄嗲田 -L6 - 85 LQ9 200409977 附耆至靠近光源（3)之方塊光傳輸板（4〇a)表面。長度與兩片 方塊光傳輸板相同之第二漫射傳輸薄膜，附著至=二漫射 傳輸薄膜與方塊光傳輸板(40b)。長度與三片方塊纖板 相—同〈第三漫射傳輸薄膜’ w著至第—與第二漫射傳輸薄 膜及方塊光傳輸板（術）。此使得漫射傳輸薄膜層數目於靠 近光源之方塊光傳輸板(4〇a)為三，於方塊光傳輸板(楊)為 二，且於方塊光傳輸板（40c)為一。因此，第—與第二漫射 傳輸薄膜縱向Jt他邊後，以昜| >筮—、曰 ^ ，、他k、.冢以取長惑罘二漫射傳輸薄膜覆蓋 ^未露出。因此，可有效地避免使用時由於外部力量施加 至漫射傳輸薄膜邊緣，造成漫射傳輸薄膜分離之問題。 t於圖中所示範例，方塊光傳輸板間之界線（49)對應於漫射 ㈣薄膜邊緣（例如，僅出現—層薄膜之區域與兩層薄膜層 區域間之邊緣）。方塊光傳輸板間之界線規律地出 ^於整個發光表面。相對地，漫射傳輸薄膜邊緣未出現於 遠離光源之區域。因此，發光表面外表可能損害，由於漫 射傳輸薄膜之明顯邊緣。藉由使方塊光傳輸板間之界線（49) 對應於半透光薄膜邊緣，可消除漫射傳輸薄膜之明顯邊緣。 方塊光傳輸板間之界線（49)通常以樹脂材料例如油灰，密 封材料，或膠黏劑密封。 如圖1所示，具曲線反射表面（301)之反射板（30)較佳地靠 …光原(J))放|。此使彳于發射方向有效地控制，使得實質上 ，自光源（3)之全部光量導引至光導引空間（2〇)。反射板（3〇) 藉由加工鏡面反射材料形成，以使反射區域（301)截面具有 字母u形狀。反射板（30)可包含由u形區域（301)其中一邊 85109 -17- 200409977 緣延伸心區域（302)。延伸區域（3〇2)可引入至光導引空間 (2〇)，使得反射表面面對光傳輸構件（21)。此降低入射光量 ’該入射光與靠近光源（3)之光傳輸構件（21)棱鏡薄片之棱 叙表面中線平行，從而可避免由光傳輸構件（21)不必要地洩 漏大夏光線。因此，抵達遠離光源區域之光量有效地增加 ，k而可輕易地增加發光表面亮度一致性。反射板（3〇)較佳 地為具拋物線部分之拋物面鏡。 作為鏡面反射材料，可使用金屬板，金屬薄片，金屬沉 積薄膜，電介質反射薄膜等。鏡面反射材料之可見光透射 比通常為80〇/〇或更多，較佳地為9〇%或更多，且尤其較佳地 為95%或更多。 王體之光導引空間長度較佳地增加至使得遠離入射面之 發光表面壳度未降低之程度。光導引空間之長度通常為 3-15米，較佳地為4_12米，且尤其較佳地為5_1〇米。若光導 引空間之長度太小，當使用複數個表面發光裝置形成平面 照明裝置時，需大量數目之表面發光裝置。對於增加平面 照明裝置之發光表面區域為不利的。相反地，若光導引空 間之長度太大，遠離入射面之發光表面亮度將降低，從而 使得發光表面之亮度一致性降低。 光導引空間心高度較佳地降低至使得發光表面$度一致 性未降低之程度。光導引空間之高度通常為2〇—7〇公分，較 佳地為30-65公分，且尤其較佳地為35_6〇公分。若光導引空 間之高度過小，靠近光源之發光表面亮度將不必要地增加 85109 -18 - 200409977 ，從而使發光表面亮度一致性降低。相反地，若光導引空 間之高度太大，表面發光裝置佔據之區域將增加。對於藉 由將表面發光裝置嵌入建築隔牆，由室内平面發射光線^ 不利的。 光導引空間之宽度通常為2(M00公分，且較佳地為3〇_9〇 公分。若光導引空間之寬度太小，對於藉由安排複數個主 體，形成具大型發光表面之平面照明裝置為不利的。相反 地，若光導引空間之寬度太大，製造主體將變為困難。 光導引空間之發射面以光傳輸構件覆蓋，如上所述。因 此，光傳輸構件置於主體變為發光表面之區域。入射面允 許仍舊為一開口或以透光構件覆蓋。透光構件為由透光^ 璃，塑膠等形成之一透光板或透光薄片。 入射面與發射面外之其他主體側面通常以不、彡光構件覆 蓋。不透光構件為由不透光塑膠，木材，金屬等形成之一 不透光板或不透光薄片。面對光導引空間之不透光構件内 表面較佳地以一反射材料覆蓋。反射材料較佳地為一漫射 反射材料或一鏡面反射材料。 ¥與發射面平行之底部（2Q3)較佳地以鏡面反射材料⑺覆 皇’如B 1所巾。此乃因τ增加發光表面亮度而無須降低發 _光一'致性。可放置一棱鏡薄片以取代鏡面反射材料⑺。^ 孩情形，棱鏡薄片之平行稜鏡縱向較佳地與光導引空間縱 向平行。ϋ面反射材料與棱鏡薄片可結合使用。例如，鏡 面，射材料或棱鏡薄片皆可置於縱向靠近光源區域之底： (2〇3) ’且其他可置於遠離㈣區域。棱鏡薄片可層叠於鏡 85109 -19 - 200409977 面反射材料上，使得# 4土緣^ τ , 文奸t叙潯片面對光導引空間。部分靠近 光源〜底4 (203)可以黑色光吸收物覆蓋，使得本發明之效 果未又拍此P♦低由底部（2G3)反射並抵達靠近光源之發光 表面光里攸而使得由發光表面外漏之光量未不必要地增 加。 王睹可由王體單元組合形成，如圖4所示。圖中所示之每 個主體單Tt(2U)包含—方塊光傳輸構件（21U)，且幾乎為矩 形平行六面體形狀。主體（2)由一組合形成，其中複數個主 體早tl(2U)於主體（2)縱向相互連接。每個主體單元（2u)具 方塊空間（2〇U)形成於其中。這些方塊空間（20U)光學地 連接以形成主體（2)之光導引空間。於圖中所示之範例，主 體單元（2U)經由主體（2)縱向之開口相互連接。因此，方塊 二間（20U)形成一空間，其於縱向較長。該空間可用於作為 光導引空間。主體單元（2U)可具光傳輸側壁，與方塊光傳 輸構件（21U)表面垂直。主體單元(2U)可經由這些垂直側壁 連接以形成主體（2)。Zhai Wei did not cover the surface of the straight I, ', beam transmitting wheel I plate that appeared from the light source, and the number of diffuse transmission film layers was close to Jing Mei,>, Jiu / Original <10,000 light transmission plates, and It gradually decreases with increasing distance from the light source. The boundary between the square light transmission plates is preferably rimmed. Light-emission m 彳 m Mu® diffuse transmission film = The pre-built component M is composed of a combination of square light transmission components, each having 30,000 light transmission plates. The prism sheet is preferably composed of a combination. The prism sheet is divided into pans, du blades, k blades, and k blades, and 4 blades are preferably placed on a square light transmission plate to form 10,000 light transmission members. The decoration on the surface of the present invention, ^. —: First private, the king body is preferably formed / combined by the main unit to form a mother that contains a wall with different values, especially the first transmission member, and is almost rectangular parallel six sides shape. Each main unit has tens of thousands of spaces in it. 85109 -10- 200409977 Several square spaces are preferably optically connected to form a light guiding space. [Embodiment] In the surface light-emitting device of the present invention, a diffusion filter formed of a thin sheet is used to diffuse and transmit a plurality of layers of diffuse transmission film, which are placed only in a specific area close to a light source. Due to the reduction of light diffusion, The light transmittance increases as the distance light source < increases. Specifically, the light transmission plate is provided with a diffusion filter which covers a specific area of the surface of the light transmission plate near the light source. The surface of the light transmission plate is far away from the light source (the rest of the area is not covered with a diffusion filter. The number of diffuse transmission film layers is the largest in the near-light source area, and gradually decreases as the distance from the light source increases. Due to the decrease in light emission, the light transmittance increases as the distance from the light source increases. This ensures that from the area close to the light source to the area far from the light source, the consistency of the surface light emission can be increased in a considerable area without reducing the brightness of the light emitting surface or increasing the height of the light guiding space. The surface light-emitting device of the present invention can effectively prevent the brightness of the light-emitting surface from falling because the diffusion filter is not placed on the surface of the light transmission plate away from the light source. In addition, by stacking a plurality of diffuse transmission films, an unnecessary increase in the amount of light leaking from the area near the light source can be avoided, and by using the film's radiant transmission effect effectively, the consistency of light emission near the light source area is not reduced. In the case where the diffuse transmission film is only placed near the light source area, leaks from the area near the light source (the amount of light will increase unnecessarily, and the brightness of the area will increase excessively. As a result, the light provided by the light source does not reach the area far from the light source. Area, so that the brightness tendency of the area far from the light source is reduced. S is placed on the diffuse transmission film so as to be close to a specific area of the light source, and the case is closest to the area. 'The brightness tendency of the diffuse transmission film area is reduced. Therefore 85109 -11-200409977 The light consistency cannot be effectively increased in both cases. Therefore, to increase the light consistency, the diffusion filter is formed so that the light transmittance is reduced due to the light diffusion. As the distance from the light source In order to gradually increase the optical characteristics in this way, the diffusion filter of the present invention is formed of a sheet in which a plurality of diffusion transmission films are laminated. The number of diffusion transmission film layers is close to The specific area of the light source is the most, and decreases with increasing distance from the light source. The incident surface is the light guide space on the two opposite sides of the longitudinal direction. One. So even if the surface helmet light device < the length of the light emitting surface is longer than the width (the length of the light guide space is greater than the width), the length of the light source does not need to be the same as the length of the light guide space, so that the increase in power consumption can be avoided. Ground, in the area with the largest number of diffuse transmission film layers, the visible light transmittance of the diffuse filter state is 5% or more, and the number of diffuse transmission film layers is one (the area is 60% or less. If visible light If the transmittance is less than 5%, the luminous consistency may decrease due to the decrease in brightness near the light source. If the number of diffuse transmission film layers is one, the visible light transmittance exceeds 60%, and the luminous consistency may decrease due to The brightness of the area where the number of diffuse transmission film layers is relatively small will increase. Therefore, the visible light transmittance of the 'diffuse filter' in the area with the largest number of diffuse transmission film layers is particularly preferably 6% or more, and The area where the number of radio transmission film layers is one is 50% or less. The visible light transmittance used in this specification is the light transmittance (wavelength) measured in the visible light region using a spectrophotometer. Area ·· 430-640nm). The visible light reflectance is the light reflectance measured with a spectrophotometer in the visible light area. Specifically, the visible light transmittance or reflectance measured value is a specific value or more. 85109 -12- 200409977 < Situation (or a specific value or less, or less than a specific value), which means that the measurement value (usually determined by the spectral division) of the entire wavelength region is a specific value or more (or a specific value or less) , Or less than a specific value). Surface light emitting device A preferred embodiment of the present invention is described below with reference to the drawings. FIG. 1 schematically shows the surface light emitting device (1) of the present invention. FIG. A cross-sectional view in which the length and the direction of the direction are parallel. FIG. 2 is a plan view of the surface light-emitting device (1) shown in FIG. 1, viewed from the top of the light-emitting surface. In FIG. 2, the reflection plate (30) for covering the light source (3) shown in FIG. 1 is omitted, so that the light source (3) is exposed. Details of the reflecting plate (30) will be described later. The surface light-emitting device of the present invention has a specific length (L), width (W), and height (H), and includes a nearly rectangular parallelepiped shape surrounded by six sides (a light guide space (20) The surface light-emitting device (!) Includes a main body (2), a boundary light guide space (20), and a light source (3) placed outside the main body (2), and provides light to the light guide space (20). As shown in the figure, the light provided by the light source (3) passes through the incident surface (201) formed by the side of the light guide space (20), and passes through the emission surface (20) that intersects the incident surface (201) at a right angle. 2), emitting outwards. The light source (3) shown in the figure is a linear light source, the length of which is about the same as the width (boundary) of the light guide space. The linear light source is placed almost to the emitting surface (202) and the incidence The surface (2001) is parallel to ensure that the brightness of the light emitting surface is consistent. The royal body (2) contains a light transmitting member (21) and is placed to cover the emitting surface (202). It is used for the device shown in Figure 1. The light transmission member (21) includes a light transmission plate (4), which has a back surface (41) facing the light guiding space (20), and is opposite to the back surface (41). The surface (42), and the thin sheet 85109 -13-200409977 (5) placed in contact with the back (41) of the light transmission plate (4), as shown in Figure 3. In this device, the surface (42) of the light transmission plate ) Is a light-emitting surface. Fig. 3 is an enlarged cross-sectional view showing an area near the light source (3). In Fig. 3, the reflection plate (30) covering the light source (3) is omitted so that the light source (3) is exposed. 4) It can be a light-transmitting plate or a diffuse transmission plate, within the range of radiation transmitted by the light-transmitting plate (4). The light-transmitting plate (4) can be colored. The light-transmitting plate (4) is usually formed using a light-transmitting material, such as glass Or plastic. Diffuse transmission light transmission plates can be formed by combining a flat plate made of a light-transmitting material and a diffusion transmission layer. The diffusion transmission layer is usually made by dispersing inorganic pigments or polymer particles on a light-transmitting material, such as polymerization. The diffuse transmission semi-transparent layer can be formed by shaping a mixture into a flat plate shape, in which inorganic pigments or polymer particles are dispersed in the light-transmitting material. Visible light transmission of the light transmission plate Ratio is usually 60% or more, and preferably 70% or more The thickness of the light transmission plate (4) can be appropriately determined without specific restrictions, depending on the application of the surface light emitting device. The thickness of the light transmission plate (4) is usually 3-20 cm. The details of the prism sheet are described later. The surface (2G1) is one of the two opposite sides of the light guide space in the longitudinal direction. The light transmission plate (4) includes a diffusion filter (6), which covers a specific area of the surface of the light transmission plate ⑷ near the light source (as shown in the figure) 2 is indicated by oblique lines.) Diffusers are not covered by light sources (the rest of the surface of the light transmission plate of 3 (the area without oblique lines in Figure 2) is not covered by diffusers. The diffuser is usually passed through an adhesive, such as pressure-sensitive adhesive.) 'Adhered to the surface of the light transmission plate. The diffusion filter ⑹ is formed of a sheet in which a plurality of layers of diffusion transmission films are laminated. Diffuse transmission film is rough surface (a plastic film, or made of resin ^, special boat, in which inorganic pigments or polymer particles are dispersed. Helmet machine Zu Zuyi ..., Qian Yanke (an example is white inorganic powder 85109- 14- 200409977. The diffusion filter (6) shown in the example in the figure is formed by a sheet, and three layers of diffusion transmission film sheets are laminated in it. The number of diffusion transmission film layers is two 'near the light source area and varies with As the distance from the light source increases, it gradually decreases to one, so that the light transmittance increases as the distance from the light source increases due to the decrease in light diffusion. The diffuse transmission film is usually bonded by an adhesive such as a pressure-sensitive adhesive And lamination. The optical characteristics of the diffusion filter used in the present invention can preferably be gradually changed gradually. Therefore, the maximum number of diffusion transmission film layers to be laminated is preferably three to five. The light-transmitting film can be adhered to The surface of the light-transmitting plate where the diffused filter area is not placed. The diffused filter usually does not have a thickness that damages the appearance of the light-emitting surface. However, it can be placed with the same thickness as the diffused filter. Light film in order to eliminate the gap between the diffuse filter area and the area where the diffuse filter is not placed (difference in the thickness of the diffusive mi). In this case, a light transmitting film can be placed on the diffuse transmission film Areas with a small number of layers. The visible light transmission ratio of the light-transmitting film is usually 80% or more, and preferably 90% or more. In the example shown in the figure, the light transmission plate (4) consists of a plurality of Arranged in the light-guiding air print 0) Vertical block light transmission plate ⑽) structure, so that the edges i touch the two-dimensional light emitters (6) substantially cover the entire area of the surface of a specific number of block light transmission plates close to the light source ( (Three in the figure) 'but did not cover the remaining Fang Cheng board (four at the time) far from the light source. The number of diffused diaphragms decreases with distance from the light source. Specifically, the number of diffuse transmission film layers is three layers on the square light transmission plate (operation) near the light source, two layers on the square light transmission plate (4Qb) adjacent to it, and the number The three squares 85109 -15-200409977 have a single layer on the light transmission board (40c). A diffusion filter in which a plurality of layers of diffusion transmission films are laminated is placed only near the light source area, so that the light transmittance gradually increases in the longitudinal direction. The amount of light leaked from the area near the light source can be appropriately controlled, thereby avoiding this. District power increased excessively. Therefore, it is possible to effectively prevent a decrease in the brightness of the area far from the light source, thereby increasing the uniformity of the light emitting surface. The decision to place the diffuser area is usually such that the ratio of the maximum value (B) to the minimum value (D) of the luminous surface (luminance ratio = B / D) is 4 or less. The brightness ratio is preferably 3.5 or less, and particularly preferably 3 or less. The brightness ratio can be effectively reduced by controlling the visible light transmittance of the diffuse transmission film. In the surface light emitting device of the present invention, the uniformity of brightness can be adjusted by placing a diffusion filter on the surface of the light transmission plate. Specifically, the determination of the area where the diffuser filter is placed is to obtain the optimal brightness ratio by combining the surface light emitting device, where the diffuser filter is not placed at the place where the device is installed, and the brightness distribution is measured by causing the surface emission. Therefore, it is possible to easily combine a device having a relatively large light emitting surface (device. Therefore, compared with the case where the light uniform device is placed in the light guide space, the usability can be significantly improved. As the light uniform device is placed in the light guide space, As an example, a plurality of light diffusion points can be provided, in which the degree of diffusion is changed from, to from a non-near light source, and is located at the bottom of the light guide between the light-guiding surfaces parallel to the light-emitting surface. It is formed by attaching and stacking multiple layers with different length-radio transmission films, while aligning one edge in the longitudinal direction, so that the number of layers close to other edges in the longitudinal direction is reduced. This is described below according to the example shown in the figure. Length and one piece The first diffuse transmission sheet with the same square light transmission plate is Putian-L6-85 LQ9 200409977 attached to the surface of the square light transmission plate (40a) near the light source (3). The length is the same as the two square light transmission plates The second diffusion transmission film is attached to the two diffusion transmission films and the square light transmission plate (40b). The length is the same as that of three square fiberboards-the same as the <third diffusion transmission film 'from the first to the second Diffuse transmission film And the square light transmission plate (surgery). This makes the number of diffuse transmission film layers three in the square light transmission plate (40a) near the light source, two in the square light transmission plate (yang), and in the square light transmission plate. (40c) is one. Therefore, after the first and second diffusion transmission films are longitudinally Jt, they are separated by 昜 | > 筮 —, ^ ,, k,. The cover is not exposed. Therefore, it can effectively avoid the problem of separation of the diffuse transmission film due to the external force applied to the edge of the diffuse transmission film during use. In the example shown in the figure, the boundary between the square light transmission plates (49 ) Corresponds to the edge of the diffused chirped film (for example, only the edge of the -layer film area and the area between the two film layer areas). The boundary between the square light transmission plates regularly appears on the entire light emitting surface. In contrast, the diffusion The edge of the transmission film does not appear in the area far from the light source. Therefore, the appearance of the light-emitting surface may be damaged due to the obvious edge of the diffuse transmission film. By making the boundary between the square light transmission plates (49) correspond to the edge of the semi-transparent film, the Eliminate diffuse transmission The obvious edges of the film. The boundary (49) between the square light transmission plates is usually sealed with a resin material such as putty, sealing material, or adhesive. As shown in Figure 1, a reflective plate (30) with a curved reflective surface (301) It is better to put | by Guangguang (J)). This effectively controls the emission direction so that substantially the entire amount of light from the light source (3) is guided to the light guiding space (20). The reflection plate (30) is formed by processing a specular reflection material so that the cross section of the reflection area (301) has the shape of a letter U. The reflecting plate (30) may include a central region (302) extending from the edge of the u-shaped region (301) on one side 85109 -17- 200409977. The extension area (302) can be introduced into the light guide space (20) so that the reflective surface faces the light transmission member (21). This reduces the amount of incident light ′ The incident light is parallel to the centerline of the prismatic surface of the prism sheet of the light transmission member (21) near the light source (3), so that the light transmission member (21) can avoid unnecessary leakage of large summer light. Therefore, the amount of light reaching far away from the light source effectively increases k, which can easily increase the brightness uniformity of the light emitting surface. The reflecting plate (30) is preferably a parabolic mirror with a parabolic portion. As the specular reflection material, a metal plate, a metal foil, a metal deposition film, a dielectric reflection film, or the like can be used. The visible light transmittance of the specular reflection material is usually 80/0 or more, preferably 90% or more, and particularly preferably 95% or more. The length of the light guiding space of the royal body is preferably increased to such an extent that the shell of the light emitting surface far from the incident surface is not reduced. The length of the light-guiding space is usually 3-15 meters, preferably 4-12 meters, and particularly preferably 5-10 meters. If the length of the light guide space is too small, when a plurality of surface light emitting devices are used to form a planar lighting device, a large number of surface light emitting devices are required. It is disadvantageous to increase the light emitting surface area of the flat lighting device. Conversely, if the length of the light-guiding space is too large, the brightness of the light-emitting surface far from the incident surface will be reduced, so that the brightness uniformity of the light-emitting surface will be reduced. The light guide space center height is preferably reduced to such an extent that the light-emitting surface consistency is not reduced. The height of the light-guiding space is usually 20-70 cm, more preferably 30-65 cm, and particularly preferably 35-60 cm. If the height of the light guide space is too small, the brightness of the light-emitting surface close to the light source will increase unnecessarily 85109 -18-200409977, thereby reducing the uniformity of the brightness of the light-emitting surface. Conversely, if the height of the light guiding space is too large, the area occupied by the surface light emitting device will increase. It is unfavorable to emit light from an indoor plane by embedding a surface light emitting device into a building partition wall ^. The width of the light-guiding space is usually 2 (M00 cm, and preferably 30-90 cm. If the width of the light-guiding space is too small, a plane with a large light-emitting surface is formed by arranging a plurality of subjects. Illumination devices are disadvantageous. Conversely, if the width of the light guiding space is too large, it will become difficult to manufacture the main body. The emitting surface of the light guiding space is covered with a light transmitting member, as described above. Therefore, the light transmitting member is placed in The area where the main body becomes a light-emitting surface. The incident surface is allowed to remain an opening or be covered with a light-transmitting member. The light-transmitting member is a light-transmitting plate or a light-transmitting sheet formed of light-transmitting glass, plastic, etc. The sides of other main bodies are usually covered with opaque members. The opaque member is an opaque plate or opaque sheet formed of opaque plastic, wood, metal, etc. Facing the light guide space The inner surface of the light transmitting member is preferably covered with a reflective material. The reflective material is preferably a diffuse reflective material or a specular reflective material. The bottom (2Q3) parallel to the emitting surface is preferably covered with a specular reflective material Emperor ' B 1. This is because τ increases the brightness of the light emitting surface without reducing the luminescence. A prism sheet can be placed to replace the specular reflection material. ^ In some cases, the parallel and longitudinal directions of the prism sheet are preferably The light-guiding space is parallel in the longitudinal direction. The reflective surface material and the prism sheet can be used in combination. For example, the mirror surface, the emissive material, or the prism sheet can be placed longitudinally near the bottom of the light source area: (203) 'and the other can be placed away from ㈣ area. The prism sheet can be laminated on the mirror 85109 -19-200409977 surface reflective material, so that # 4 土 缘 ^ τ, the cultivating film is facing the light guide space. Partly near the light source ~ bottom 4 (203) can The black light absorber is covered, so that the effect of the present invention is not taken again. The light reflected by the bottom (2G3) and reaching the light emitting surface near the light source is low, so that the amount of light leaking from the light emitting surface does not increase unnecessarily. It can be formed by the combination of the king body unit, as shown in Figure 4. Each body shown in the figure includes Tt (2U)-a square light transmission member (21U), and is almost rectangular parallelepiped. The body (2) Formed by a combination, The plurality of main bodies are connected to each other in the longitudinal direction of the main body (2). Each main body unit (2u) has a square space (20U) formed therein. These square spaces (20U) are optically connected to form a main body ( 2) Light guiding space. In the example shown in the figure, the main units (2U) are connected to each other through the longitudinal openings of the main body (2). Therefore, the two blocks (20U) form a space that is longer in the longitudinal direction. This space can be used as a light guide space. The main unit (2U) can have light transmission side walls that are perpendicular to the surface of the block light transmission member (21U). The main unit (2U) can be connected via these vertical side walls to form the main body (2).
如圖中所示，位於主體（2)縱向一邊緣之主體單元方塊空 間具一開口，其可直接連接至外部。該開口作為主體（2)之 光導引空間之入射面（2〇1)。主體（2)之光導引空間側面較佳 地以不透光構件覆蓋，使得光線不由入射面（2()1)與覆蓋光 傳fei構件 < 發射面外之其他側面外漏。因此，每個主體單 元（2U)具此一不透光構件Q 與發射面垂直，於主體（2)光導引空間縱向延伸.之側面， 以由不透光構件形成之垂直側面板（7 1)覆蓋。因此，每個主 85109 -20- 200409977 體單元（2U)包含一方塊垂直側面板（7 1 u)。方塊垂直側面板 (7 1 U)之邊緣彼此連接，從而形成垂直側面板（7 1)。方塊垂 直側面板（7 1 U)較佳地為由鏡面反射材料形成之反射板。 於主體（2)光導引空間縱向面對入射面之垂直側面亦以不 K光構件復盍。因此，位於主體（2)纟從向其他邊緣之主體單 元具此一不透光構件。具體地，在位於主體其他邊緣之主 體單元，主體單元相鄰方塊空間間出現之侧面允許仍舊為 一開口，且其他側面以不透光構件覆蓋。不透光構件較佳 地為一反射板（72)，以與圖！所示範例相同方<，由鏡面反 射材料形成。反射板較佳地稍微傾斜，使得反射表面面對 光傳輸構件（21)，如圖所示。此對於增加發光表面亮度為有 利的。 因 ,从，工W以貌囬反射材料覆蓋 、此’每個王體單TL (2U)包含-方塊鏡面反射材料（7U) 。方塊鏡面反射材料(7U)彼此連接以形成鏡面反射材料， 其覆蓋底部整個區域。 主體單元（2U)之方塊光傳輸構件（2ιυ)由方塊光傳輸板 (外及置於每個方塊光傳輸板上之棱鏡薄片—分割片所形 ，。具體地’覆蓋主體之光導引空間整個區域之棱物 由複數個棱鏡薄片之分刻片 刀成。於該情形，稜鏡薄片 ()〈矢告》]片平坦表面附著牵女 , 者土万塊先傳輸板（40)背面，使撂 夂鏡表面面對光導引空間- 、 ,L 如圖3所不。棱鏡薄片較佳蚰细 由半透光膠黏劑附著至光傳輸板。 、、、二 藉由黏合作為發射面之方塊光傳輸構件，及邊緣之垂直 85109 -21 - 200409977 =面板形成截面幾乎為字母，，u"形狀之單元前導，並黏合 复.1 鏡面反射材料至垂直側面板，主體單元（2U)便 ①成。於布望減少重量並增加垂直側面板機械強度之情形 ’垂直側面板可由相當厚之塑膠板形成。於提供垂直侧面 板反射性^形’鏡面反射材料可附著至塑膠板。塑膠板之 厚度未限制可根據表面發光裝置之應用適當地決定厚度 。塑膠板<厚度通常為3_2〇釐米。 因王體早兀為中空管形狀，由於重量較輕，主體單元可 輕易地操作。因此，使用主體單元使主體之製造變為容易 具地王肢單几所需數目攜帶至欲安裝表面發光裝置 〈地點。i體單元安排為使得方塊光傳輸構件邊緣附著。 方塊光傳輸構件間之界線密封且連接複數個主體單元。主 體以此方式完成。 第一方塊光傳輸板（表面光傳輸板）可置於主體之方塊光 傳輸板以此方式完成。於將主體併入建築地板之情形，若 主體之方塊光傳輸板露出，由於人行交通’手推車等，方 塊光傳輸板之表面可能受損。然而’光傳輸板表面可用於 保護主體之方塊光傳輸板。具體地，若表面光傳輸板之表 面艾損，可使用主體之方塊光傳輸板。因此，僅受損表面 光傳輸板需更換。於該情形，表面光傳輸板較佳地置於方 塊光傳輸板，而未黏合至表面光傳輸板。 表面發光裝置可僅使用一主體形成。具大型發光區域之 表面發光裝置可藉由利用兩個或多個主體形成。例如，主 體之組合（2 A)可藉由安排複數個主體（2)形成，使得主髀於 -22- 85109 200409977 縱向彼此平行，如圖5所示1該情形，與發射面垂直，於 彼此附著之主體（2)間縱向延伸之侧面，可以不透光垂直側 面板復盍。然而，垂直側面較佳地以由透光材料形成之垂 直側面板復盖。此使主體（2)之光導引空間光學地連接，從 而可开y成由這些光導引空間構成之大型光導引空間。若主 體（組合（2A)具此一光導引空間，可有效地利用引入每個 主體光導引空間之光線，從而可有效地增加發光表面亮度。 万；使用主體組合（2A)之情形，對於每個主體（2)可放置光 源或可使用如圖5所示之一光源（3)。於該情形，因光源長 度相當地增加，較佳地使用含有中空光管（3丨），及提供光線 土中二光管（3 1)足冷光光源（未顯示）之線光源，如上述公開 木所知示。冷光光源通放置為使得光線由中空光管（3丨）縱向 《一邊緣（3 la)或另一邊緣（31b)供應至管（3丨）。可放置兩個 冷光光源，使得光線由中空光管（3 υ縱向兩邊緣提供。 雖然未於圖5顯示，較佳地放置一反射板以覆蓋光源（3) 作為光源（反射板，反射區域截面為字母U形狀之反射板 ’較佳地與圖1所示範例相同方式。於其中，拋物面鏡尤其 較佳。 以上逑方式製造之表面發光裝置（丨）併入建築之地板隔牆 等’且例如作為平面照明裝置。於使用表面發光裝置作為 平面照明裝置之情形，可不使用主體單元形成主體。於將 表面髮光裝置併入建築地板之情形’主體（2)之架構可使用 圖6所示之框架構件（8)形成。 框架構件（8)由支撐光傳輸構件（21)之欄杆部分（81)，及由 85109 -23 · 200409977 安裝面（8〇)以一特定距離支撐欄杆部分（81)之支承（82)所 成。欄杆部分⑽與支承（82)通常由金屬，例如鐵 形成 & 兩個攔杆部分⑻）通常放置為支撐一個光傳輸構件 。欄秆邰分（81)於水平面以特定間隔平行放置。水平面與主 體光導引空間（2〇)之發射面（2〇2)平行。騰部分⑻）沿=As shown in the figure, the main unit square space at the longitudinal edge of the main body (2) has an opening which can be directly connected to the outside. The opening serves as the incident surface (201) of the light guiding space of the main body (2). The side of the light guide space of the main body (2) is preferably covered with an opaque member, so that light is not leaked from the incident surface (2 () 1) and other sides outside the light transmitting member < emitting surface. Therefore, each main body unit (2U) has such an opaque member Q perpendicular to the emission surface, and the side of the main body (2) light guide space extends longitudinally, with a vertical side panel (7 1) Cover. Therefore, each main 85109 -20- 200409977 body unit (2U) contains a square vertical side panel (7 1 u). The edges of the square vertical side panel (7 1 U) are connected to each other to form a vertical side panel (7 1). The square vertical side panel (7 1 U) is preferably a reflection plate formed of a specular reflection material. The vertical side of the light guide space of the main body (2) that faces the incident surface is also restored with a K-light component. Therefore, the main body unit located at the main body (2) 纟 from the other edge has this opaque member. Specifically, in the main body unit located at other edges of the main body, the side surface appearing between adjacent block spaces of the main body unit is still allowed to be an opening, and the other side surface is covered with an opaque member. The opaque member is preferably a reflective plate (72), as shown in the figure! The example shown is the same square <, formed of a mirror reflective material. The reflecting plate is preferably slightly inclined so that the reflecting surface faces the light transmitting member (21) as shown. This is advantageous for increasing the brightness of the light emitting surface. Because of this, the industry is covered with a retro-reflective material, and each of the single TL (2U) of the royal body contains-a square specular reflective material (7U). The square specular reflective materials (7U) are connected to each other to form a specular reflective material, which covers the entire area of the bottom. The block light transmission member (2ιυ) of the main unit (2U) is formed by a block light transmission plate (outside and a prism sheet-divided sheet placed on each block light transmission plate. Specifically, 'the light guiding space covering the main body' The prisms in the entire area are formed by dividing the blades of a plurality of prism sheets. In this case, the flat surface of the thin sheet () (yao yao)] is attached to the lead girl, or the back of the board (40) is transferred first. Make the mirror surface face the light-guiding space-,, L as shown in Figure 3. The prism sheet is preferably thin and attached to the light transmission plate by a semi-transparent adhesive. The square light transmission member, and the vertical edge of the edge 85109 -21-200409977 = The panel forms a cross section that is almost letter-shaped, with a u " shaped unit leading and glued together. 1 Mirror reflective material to the vertical side panel, the main unit (2U) will ①Success. In the case of reducing the weight and increasing the mechanical strength of the vertical side panel, the 'vertical side panel can be formed of a relatively thick plastic plate. To provide the vertical side panel with a reflective shape,' a mirror reflective material can be attached to the plastic plate. Plastic plate Thickness The limitation can be determined appropriately according to the application of the surface light-emitting device. The plastic plate < thickness is usually 3-20 cm. Since the royal body has a hollow tube shape, the main unit can be easily operated due to its light weight. Therefore, use The main body unit makes the manufacture of the main body easy to carry the required number of the king's limbs and carry it to the surface light-emitting device to be installed. The i body unit is arranged so that the edges of the square light transmission members are attached. The boundary between the square light transmission members is sealed and Connect multiple main body units. The main body is completed in this way. The first square light transmission board (surface light transmission board) can be placed on the main body's square light transmission board in this way. In the case of integrating the main body into the building floor, if the main body The square light transmission plate is exposed. The surface of the square light transmission plate may be damaged due to pedestrian traffic, such as a trolley, etc. However, the surface of the light transmission plate can be used to protect the main square light transmission plate. Specifically, if the surface of the surface light transmission plate is damaged The main square light transmission board can be used. Therefore, only the damaged surface light transmission board needs to be replaced. In this case, The surface light transmission plate is preferably placed on a square light transmission plate without being bonded to the surface light transmission plate. The surface light-emitting device can be formed using only one body. The surface light-emitting device with a large light-emitting area can use two or more bodies Formation. For example, the combination of main bodies (2 A) can be formed by arranging a plurality of main bodies (2) so that the main body is vertically parallel to each other at -22-85109 200409977, as shown in Figure 1 The longitudinally extending sides between the main bodies (2) attached to each other can be covered with opaque vertical side panels. However, the vertical sides are preferably covered with a vertical side panel formed of a light-transmitting material. This makes the main body (2) The light guide spaces are optically connected, so that a large light guide space composed of these light guide spaces can be opened. If the main body (combination (2A) has this light guide space, each of the light guide spaces can be effectively used to introduce each The main light guides the light in the space, which can effectively increase the brightness of the light-emitting surface. In the case of using the subject combination (2A), a light source may be placed for each subject (2) or one of the light sources (3) shown in FIG. 5 may be used. In this case, since the length of the light source is considerably increased, it is preferable to use a linear light source containing a hollow light pipe (3 丨) and a light source (2 1) and a cold light source (not shown), as disclosed above. Wood knows. The cold light source is placed so that light is supplied to the tube (3 丨) from the hollow light pipe (3 丨) in the longitudinal direction (one edge (3la) or the other edge (31b)). Two cold light sources can be placed so that the light is provided by the hollow light pipe (3 υ longitudinal edges). Although not shown in Figure 5, it is better to place a reflector to cover the light source (3) as the light source (reflector, cross section of the reflection area) The reflecting plate in the shape of the letter U is preferably the same way as the example shown in FIG. 1. Among them, a parabolic mirror is particularly preferred. The surface light-emitting device (丨) manufactured in the above manner is incorporated into the floor partition wall of the building, and the like, and For example, as a flat lighting device. In the case of using a surface lighting device as a flat lighting device, the main body can be formed without using a main unit. In the case of integrating a surface lighting device into a building floor, the structure of the main body (2) can be used as shown in FIG. 6 The frame member (8) is formed. The frame member (8) is supported by the railing portion (81) of the light transmission member (21), and by the 85109 -23 · 200409977 mounting surface (80) to support the railing portion (81) at a specific distance. ). The railing part ⑽ and the support (82) are usually made of metal, such as iron (two railing parts ⑻) are usually placed to support a light transmission member. Tai stalk fraction (81) is placed in a horizontal plane parallel at certain intervals. Horizontal light guiding space of the main body (2〇) the emission surface (2〇2) parallel portion ⑻ Teng) along =
引芝間（2G)縱向連續。具體地，兩個平行欄杆部分⑻）形成 一開口 ’沿光導引空間縱向延伸。 後數個支承（82)沿光導引空間（2戰向以特定間隔放置 。因此，由複數個支承(82)分割之開口，於沿光導引空間： 向延伸〈垂直侧面形成。這些開口通常以不透光構件覆蓋 ☆例如鏡面反射材料。如圖所示，於使用複數個與光^ :間縱向平行，緊密地安排之主體⑺情形，—開口允；仍 售於相鄰主體間之垂直側面上。鏡面反射材料⑺較佳地置 於與王體光導引空間（2〇)之發射面（2〇2)平行之底 盘Yinzhijian (2G) is continuous vertically. Specifically, two parallel railing sections ii) form an opening ′ extending longitudinally along the light guide space. The last several supports (82) are placed at specific intervals along the light-guiding space (2 war directions. Therefore, the opening divided by the plurality of supports (82) is formed along the light-guiding space: extending to the vertical side. These openings Usually covered with opaque members ☆ such as specular reflective materials. As shown in the figure, in the case of using a plurality of subjects closely parallel to the light ^: longitudinally, openings are allowed; still sold between adjacent subjects On the vertical side. The specular reflective material is preferably placed on a chassis parallel to the emission surface (202) of the royal light guide space (20).
述範例相同方式。 〃 光傳輸構件（21)較佳地由方塊光傳輸構件組合形成，每 由方塊光傳輸板（40)，及附著至方塊光傳輸板(4〇)背面= 鐃薄片（5)分割片所構成。此使主體（2)之製造變為容易。 塊光傳輸構件相當輕，從而使運輸與操作變為容易。為 架構件（8)構成部分之欄杆部分與支承，可個別攜帶並於 點組合。具體地，這些構成部分可攜帶至地 ^ 伴 占且框架 牛(八8)於地點之安裝面_上組合。方塊光傳輸構件沿欄 F刀（8 1 )縱向，安排於框架構件之欄杆部分（g 1 )上。、轉 -έ-丹豆 851()9 -24 - 以言亥方气 A 、 、J 70成。底邵之鏡面反射材料可於安排方塊光傳輸 構件前放置。、 。万塊光傳輸構件之邊緣彼此附著。密封方塊 光傳輸構件間+ w Μ 、 〜’！、'泉。接著放置覆蓋垂直側面之不透光構 件。 另兄薄片為一薄片，其中之一主要表面為棱鏡表面，且 王要表面為平坦表面。棱鏡薄片通常由樹脂形成，例 4丙烯I树脂，聚酯樹脂，或聚碳酸脂樹脂。 2鏡表面之稜鏡形狀通常為三角形。然而，棱鏡形狀未 限万、Τ。钹鏡可為截面為半圓或弧形之形狀，或三角形頂 口卜夂圓足形狀。棱鏡表面之複數個棱鏡可具不同形狀及/或 大小。棱鏡表面可放置為面對漫射傳輸薄膜，或複數個棱 鏡薄片可結合放置。 如圖3所示，較佳地棱鏡薄片之棱鏡表面面對光導引空間 ，且複數個平行棱鏡置於稜鏡表面，以便與光導引空間於 縱向幾乎以直角相交。此確保由靠近光源區域外漏之光量 可適當地控制，從而可避免於該區域之亮度過度增加。= 此，可有效地避免遠離光源區域之亮度減少，從而可增加 發光表面一致性。於該情形，平行棱鏡較佳地為三角形棱 鏡，其頂角為60-80度範圍。此類稜鏡薄片商業上可取得產 品之特定範例為“TRAP”（商標··棱鏡頂角=7〇度），由 Sumitomo 3M有限公司製造。 作為線光源，可使用用於常見表面發光裝置之線光源 85109 -25 - 200409977 例如，可使用含有_側面發 光學傳輸器（線光源。於該 入光導引空間之部分。冷光 面發光裝置分離放置。光專 行放置。 射類型光纖或一中空光管作為 情形’光學傳輸器為將光線引 光源，其為發光部分，可與表 傳輸器與入射面及發光表面平 於使用中空光管形成光學 、 〜疋卞得如备（情形，直徑（截面直徑 方向大小’其與縱向以直菡如 直月相父）可相當地增加。因此，可 輕易地增加入射於光導引空 士 ' ,— |二间芡先I。中空光管通常藉由 圓柱形地捲起棱鏡蘇g γ j 兄專片而形成。於該情形，較佳地棱鏡薄 片捲起為使得稜鏡表面面對外邱 一 叫τ外4，且棱鏡表面之棱鏡縱向 不/、&周圍方向平行’其與縱向相交。由棱鏡縱向虛管周 圍方向形成之角度通常為45,度。稜鏡表面之摄鏡頂角通 常為80-100度範圍。 作為冷光光源，可使用高強度燈例如氙燈，函素燈，金 屬画化物燈，或間光燈。燈之功率消耗通常為〇1_5仟瓦。 燈通常置於容器内。用於燈之一反射板安裝於容器内。由 光源提供之光線可為白光或有色光。例如，由燈發射之光 線可經由色彩濾光器提供作為有色光。 範例 形成具圖1與2所示結構之表面發光裝置。表面發光裝置 置於地板表面並發光。於主體提供藉由安排七片方塊光傳 輸構件形成义光傳輸板，包含如圖所示，具8〇〇χ8〇〇釐米平 面區域（方塊光傳輸板。光傳輸板至安裝表面（光導引空間 底部）4距離為5 0 0變米。因此，該範例之裝置具$ q 〇釐_米χ $ 6 米區域之發光表面。 85109 -26- 200409977 主體藉由使用主體之架構形成，其使用圖6所示之金屬框 架構件形成。光傳輸板由複數個方塊光傳輸板形成。方塊 光傳輸板由厚度為米之強化麵形成。具7()度棱鏡頂 角之上述商業上可取得棱鏡薄片，使用丙烯酸膠黏劑黏合 至方塊光傳輸板背面，以獲得方塊光傳輸構件。稜鏡薄片 4平坦表面附著至方塊㈣輸板背面。七件方塊光傳輸構 件女排万；王骰架構上，且相鄰方塊光傳輸板間之界線使用 密封劑密封。 且於光導引空間底邵之鏡面反射材料為具％%可見光反 射比之鏡面反射薄膜（商標：Sllverlux，由s_t〇m〇⑽有 限公司製造)。覆蓋面對入射面之侧面之反射板，及覆蓋於 光導引空間縱向延伸之垂直側面之不透光構件，亦使用該 鏡面反射薄膜形成。 由三層漫射傳輸薄膜構成之漫射滤光器（可見光透射比= 夠，使用丙晞酸膠黏劑附著至靠近光源之三片光傳輸板 如圖1與2所不。因此，三層薄膜附著至靠近光源之光傳 輸^ ’兩層薄膜附著至由光源數來之第二光傳輸板，且- 層濞月吴附者至由光源數來之第三光傳輸板。無漫射傳輸薄 膜：於由：源數來之第四至第七光傳輸板發光表面。 。有光g及冷光光源紅合之一線光源使用作為光源。作 為冷光光源，使用高強度之金屬i化物燈(1仟瓦)。光管使 由mitomo 3M有限公司（商標：〇LF，棱鏡頂角，度） 製造之稜鏡薄片形成。該棱鏡薄片以圓柱狀捲起，使得棱 鏡表面面對外部，R3 政_ 内砟空間之截面直徑為250釐米。用於 4 足益·光源4ir — 射板，猎由將上述具95%可見光反射比之 鏡面反射薄膜捲起而形成。 200409977 當由以此方式形成之該範例表面發光裝置發光時，證實 光線一致地發射。於縱向距離光源0.4米測量之亮度為2 0 0 燭光/米2，且距離光源5.4米測量之亮度為95燭光/米2。這些 測量點之亮度比為2。最免點與最暗點i党度比為2.5。党 度乃使用由Mmota有限公司製造之照度計“T-l H”測量，距 離發光表面3 0公分。亮度測量結果示於圖7。 於未放置漫射濾光器之情形，靠近光源之最亮點亮度增 加至3 1 0燭光/米2，且遠離光源之最暗點亮度下降至5 5燭光/ 米2。這些點之亮度比為5.6，從而無法獲得足夠之發光一致 性。 由上述結果可清楚瞭解，根據本發明，可輕易地製造於 大型發光表面整個區域一致地發光之一表面發光裝置。因 光源長度與光導引空間寬度相等，光線可以高亮度發射而 無須大量電力。 【圖式簡單說明】 圖1顯示根據本發明之表面發光裝置一較佳具體實施例 範例之一截面圖式’與主體之長度及南度方向平行。 圖2顯示圖1所示之表面發光裝置之一平面圖式，由發光 表面頂部觀看。 圖3為顯示圖1所示之靠近光源區域之一放大截面圖式。 圖4為顯示複數個主體單元組合形成之主體範例之一斜 角圖式。 圖5為描繪主體單元組合範例之一圖式。 圖6為顯示一範例之一截面圖式，其中本發明之表面發光 裝置併入建築地板内。 圖7為顯示於範例中製造之表面發光裝置亮度測量結果 M 1(H) -28 - 200409977 之一圖表。 【圖式代表符號說明】 1 2The example is described the same way. 〃 The light transmission member (21) is preferably formed by a combination of square light transmission members, each of which is composed of a square light transmission plate (40), and attached to the back of the square light transmission plate (40) = 铙 sheet (5) divided pieces . This facilitates the manufacture of the main body (2). The light-transmitting member is quite light, making transportation and handling easy. The railing part and support, which are the components of the frame member (8), can be carried individually and combined at points. Specifically, these components can be carried to the ground, occupied, and framed (eight 8) on the installation surface of the place. The square light transmission member is arranged on the railing portion (g 1) of the frame member along the longitudinal direction of the fence F knife (8 1). -Zhuan-Dandou 851 () 9 -24-In words Haiqi A, A, J 70%. The bottom reflective material can be placed in front of the block light transmission member. ,. The edges of the 10,000 light transmitting members are attached to each other. Sealed block Between light transmission members + w Μ, ~ ’! ,'spring. Next, an opaque member covering the vertical side is placed. The other sheet is a sheet, and one of the main surfaces is a prism surface, and the main surface is a flat surface. The prism sheet is usually formed of a resin, such as an acrylic I resin, a polyester resin, or a polycarbonate resin. The shape of the mirror surface is usually triangular. However, the shape of the prism is not limited to 10,000. The mirror can be in the shape of a semicircle or an arc, or the shape of a round foot with a triangular top. The plurality of prisms on the prism surface may have different shapes and / or sizes. The prism surface can be placed to face the diffuse transmission film, or multiple prism sheets can be placed in combination. As shown in FIG. 3, it is preferable that the prism surface of the prism sheet faces the light guide space, and a plurality of parallel prisms are placed on the surface of the prism so as to intersect the light guide space at almost right angles in the longitudinal direction. This ensures that the amount of light leaking from the area close to the light source can be appropriately controlled, thereby avoiding an excessive increase in brightness in that area. = This can effectively avoid the decrease of brightness in the area far from the light source, which can increase the uniformity of the light emitting surface. In this case, the parallel prism is preferably a triangular prism, and its apex angle is in the range of 60-80 degrees. A specific example of a commercially available product of this type of osmium sheet is "TRAP" (trademark · prism vertex angle = 70 degrees), manufactured by Sumitomo 3M Co., Ltd. As a linear light source, a linear light source 85109 -25-200409977 used for common surface light emitting devices can be used. For example, a light source including a side light transmitter (line light source can be used. In the part of the light guide space. The cold light surface light emitting device is separated. Placed. The light is placed exclusively. The radiation type fiber or a hollow light tube is used as the situation. The optical transmitter is to guide the light to the light source. It is a light-emitting part. It can be formed with the surface transmitter and the incident surface and the light-emitting surface. Optics, ~ 疋 卞 get as prepared (case, the diameter (the size of the cross-section diameter direction 'which is straight and straight as the father of the moon phase) can be increased considerably. Therefore, the incident light guide can be easily increased',-| Erjianxian I. Hollow light tubes are usually formed by cylindrically rolling up a prism film of g. Γ j. In this case, it is preferable that the prism sheet is rolled up so that the surface of the cymbal faces outside Qiu Yiqi τ is outside 4, and the prism surface of the prism surface is not longitudinal, parallel to the surrounding direction, and it intersects with the longitudinal direction. The angle formed by the peripheral direction of the longitudinal virtual tube of the prism is usually 45, degrees. The apex angle is usually in the range of 80-100 degrees. As a cold light source, a high-intensity lamp such as a xenon lamp, a letter lamp, a metal paint lamp, or an interstitial lamp can be used. The power consumption of the lamp is usually 0 ~ 5 watts. The lamp is usually set Inside the container. A reflecting plate for the lamp is installed in the container. The light provided by the light source can be white or colored light. For example, the light emitted by the light can be provided as colored light through a color filter. The surface light emitting device of the structure shown in 1 and 2. The surface light emitting device is placed on the floor surface and emits light. The main body is provided with a light transmission plate formed by arranging seven square light transmission members, including as shown in the figure, with 80 × 8 〇〇cm flat area (square light transmission board. The distance between the light transmission board and the mounting surface (the bottom of the light guiding space) is 500 meters. Therefore, the device of this example has $ q 〇 ％ _ 米 χ $ 6 meters The light-emitting surface of the area. 85109 -26- 200409977 The main body is formed by using the structure of the main body, which is formed using a metal frame member as shown in Fig. 6. The light transmission plate is formed by a plurality of square light transmission plates. The square light transmission It is formed by a reinforced surface with a thickness of 1 meter. The above commercially available prism sheet with a prism angle of 7 () degrees is bonded to the back of the block light transmission plate with an acrylic adhesive to obtain a block light transmission member. Sheet 4 The flat surface is attached to the back of the cube transport board. Seven cube light transmission members are used for women's volleyball; the king dice structure, and the boundary between adjacent cube light transmission boards is sealed with a sealant. And the mirror reflection on the bottom of the light guide space The material is a specular reflective film with a %% visible light reflectance (trademark: Sllverlux, manufactured by s_tomom Co., Ltd.). A reflective plate covering the side facing the incident surface, and a vertical covering covering the longitudinal extension of the light guiding space The side opaque members are also formed using the specularly reflecting film. Diffuse filter composed of three layers of diffuse transmission film (visible light transmittance = enough, using propionate adhesive to attach three light transmitting plates near the light source as shown in Figures 1 and 2. Therefore, the three layers The film is attached to the light transmission near the light source ^ 'Two layers of film are attached to the second light transmission plate from the number of light sources, and-the layer is attached to the third light transmission plate from the number of light sources. No diffuse transmission Thin film: Yu You: The light emitting surfaces of the fourth to seventh light transmission plates from the source number. The light source g and the cold light source red line light source are used as the light source. As the cold light source, a high-intensity metal iide lamp (1仟 watt.) The light pipe is made of a thin sheet made of mitomo 3M Co., Ltd. (trademark: 〇LF, prism vertex angle, degree). The prism sheet is rolled up in a cylindrical shape so that the prism surface faces the outside. The cross-section diameter of the inner space is 250 cm. It is used for 4 Ashikaga · Light Source 4ir—the reflector, which is formed by rolling up the above-mentioned specular reflection film with 95% visible light reflectance. 200409977 When formed in this way When the example surface light emitting device emits light, Solid light is emitted uniformly. The brightness measured at a distance of 0.4 meters from the light source in the longitudinal direction is 200 candelas per meter 2 and the brightness measured at a distance of 5.4 meters to the light sources is 95 candelas per meter 2. The brightness ratio of these measurement points is 2. The ratio of the degree to the darkest point i is 2.5. The degree is measured using an illuminance meter "Tl H" manufactured by Mmota Co., Ltd., 30 cm from the light-emitting surface. The brightness measurement results are shown in Figure 7. Diffuse was not placed In the case of a filter, the brightness of the brightest point close to the light source is increased to 3 10 candelas per square meter, and the brightness of the darkest point far from the light source is reduced to 5 5 candelas per square meter. The brightness ratio of these points is 5.6, which makes it impossible to obtain Sufficient luminous consistency. From the above results, it is clear that according to the present invention, a surface light emitting device that can uniformly emit light over the entire area of a large light emitting surface can be easily manufactured. Because the length of the light source is equal to the width of the light guiding space, the light can be high Brightness emission without a large amount of electricity. [Brief description of the drawings] FIG. 1 shows a cross-sectional view of an example of a preferred embodiment of a surface light-emitting device according to the present invention, and the length and south direction of the main body. OK. Figure 2 shows a plan view of one of the surface light-emitting devices shown in Figure 1, viewed from the top of the light-emitting surface. Figure 3 is an enlarged sectional view showing an area near the light source shown in Figure 1. Figure 4 shows a plurality of subjects An oblique view of a main body example formed by unit combination. Fig. 5 is a drawing depicting an example of a main unit combination. Fig. 6 is a cross-sectional view showing an example in which the surface light-emitting device of the present invention is incorporated into a building floor. Figure 7 is a graph showing the measurement results of the brightness of the surface light-emitting device M 1 (H) -28-200409977 manufactured in the example. [Description of Symbols Representing the Drawings] 1 2
2A2A
2U 3 4 5 6 72U 3 4 5 6 7
7U 8 207U 8 20
20U 2120U 21
21U 30 31 31a，31b 40, 40a，40b，40c 41 42 49 表面發光裝置 主體 組合 主體單元 光源 光傳輸板 棱鏡薄片 漫射濾光器 鏡面反射材料 方塊鏡面反射材料 框架構件 光導引空間 方塊空間 光傳輸構件 方塊光傳輸構件 反射板 中空光管 中空光管邊緣 方塊光傳輸板 背面 表面 界線 -29- 85109 200409977 71 垂直側面板 71U 方塊垂直側面板 72 反射板 80 安裝面 81 欄杆部分 82 支承 201 入射面 202 發射面 203 底部 301 曲線反射表面 302 延伸區域 Η 南度 L 長度 W 寬度 85109 -30 -21U 30 31 31a, 31b 40, 40a, 40b, 40c 41 42 49 Surface light emitting device body combination body unit light source light transmission plate prism sheet diffusion filter mirror reflective material block mirror reflective material frame member light guide space square space light Transmission member Block Light transmission member Reflective plate Hollow light tube Hollow light tube Edge square light transmission board Back surface boundary line -29- 85109 200409977 71 Vertical side panel 71U Square vertical side panel 72 Reflective plate 80 Mounting surface 81 Railing section 82 Support 201 incident surface 202 Emissive surface 203 Bottom 301 Curved reflective surface 302 Extension area Η South L Length W Width 85109 -30-