1263756 九、發明說明： 【發明所屬之技術領域】 >本發明是有關於一種照明裝置，特別是指一種能產生 均焭化視覺效果的照明裝置。 【先前技術】 >圖1，以公告第595732號案為例，主要是在一導光 板 的入射端面111配置有一冷陰極燈管（CCFL)丨2，及 於，入射端面111的兩端分別配置有一發光二極體（LED)13 藉此以5亥等發光二極體（LED)13作為辅助光源，直接佈 設在該導光板u ±，使該導光板η無發光暗角。惟，由於 該等發光二極體（LED)13是直接設置在該導光板u上，因 此，會因為入射角度會影響光線的行進方向，使整體的光 輝度產生明暗不均的現象，而無法作為主要光源，所以， 該等發光二極體（LED)13必須配合亮度較高的冷陰極燈管 (CCFL)12作為主要光源，才能使整體的亮度及光輝度達到 要求。然而，該冷陰極燈管（CCFL)12的驅動迴路較為複雜 ，且無法在低溫下運作，作動反應時間較長，已不符合市 場需求。 參圖2，為改善上述缺失，US-6474826號案主要是在 一光擴政板21 —側没置有一導光棒22，再將二發光二極體 (LED)23配置在6亥導光棒22二端面或一側。藉此，使兮導 光棒22可將該發光二極體（Led)23產生的光線，沿直線方 向導引至該光擴散板21，而能提昇光亮度。惟，上述構造 雖然可以使發光一極體（LED)23直接作為主要光源，其卻於 1263756 【實施方式】 " 有關本發明之前述及其他技術内容、特點與功效，在 以下配合參考圖示之多個較佳實施例的詳細說明中，將可 清楚的呈現。 ' ， 參閱圖3、圖4，本發明照明裝置的較佳實施例包含一 一背光模組3及數點光源4。 該背光模組3具有一光擴散板31及四導光棒32。該光 擴散板31具有佈表一表面的多數網點311。該等導光棒u • 是與該光擴散板31 一體成型，且形成在該光擴散板31四 邊側。 该寻點光源在本實施例分別為一發光二極體（led)4， 是分別配置在該等導光棒32相鄰接的兩端面32i，並朝向 該等導光棒32，使該等導光棒32可將該等發光二極體 (LED)4產生的光線導引至該光擴散板3五。 由於該等發光二極體（LED)4是環佈在該光擴散板31周 側，因此，亮度減弱的現象可以獲得改善，且該等發光二 春極體（LED)4產生的光線’可經由該等導光棒導引入射至 該光擴散板3卜在有效提昇整體光亮度的情形下，配合該 等網點311設置，使整體產生趨於一致的光輝度，而使整 體光輝度如附件二所示，產生均質化的視覺效果。 當然，該等發光二極體（LED)4也可以如圖5所示，配 置在該等導光棒32呈直角相鄰接的兩端面321。或如圖6 所示，配置在朝向該等導光棒32的一外側自奶。或如圖 S 8所示，採用分離式的光擴散板3 1與二導光棒32， 7 1263756 再將該等導光棒32配置在該光擴散板3i任意二邊側，及 使該等發光二極體(LED)4配置在該等導光棒32呈直角相鄰 接的兩端面321。或如a 9、圖10所示，將該等導光棒二 配置在該光擴散板3H壬意三邊側，及使該等發光二㈣ (UD)4配置在該等導光棒32呈直角相鄰接的兩端面32卜 藉此，其同樣可以在有效提昇整體光亮度的情形下，使整 體產生趨於一致的光輝度。 簽圖π、圖12，該背光模組3是配合該等導光棒Μ 的數量更具有數反射罩33。該等反射罩33是分別遮罩該導 先棒I並具有面向該光擴散板3丨的-開口 331。藉此， 由。亥等V光棒32透出的光線，會被該等反射罩33遮拷， 並反射折回該等導光棒32，再集中由該等導光棒32 ^入 2該絲餘3丨，使本發明大幅減少光的損失，並有效 提昇光7C度，及使整體產生趨於一致的光輝度。 …據上所述可知’本發明之照明裝置具有下列優點及功 •本务明疋直接使用該等發光二極體（LED)4作為光源 、此不仁驅動迴路較為簡易，可以在低溫下運作，溫 七I又度車乂大，且較耐用、使用壽命長，❿能符合市場需 〇 …2·由於本發明疋以環佈在該光擴餘31關的多數發 ^二^體(LED)4提供光源，因此，亮度減弱的現象可以明 ^獲:改善，且該等發光二極體（LED)4產生的光線，可配 口。亥寻反射罩33集中經由該等導光棒32導引人射至該光 1263756 f散板3卜在有效提昇整體光亮度的情形下，並不需要增 设凸條等元件，藉此’使本新型與以往的背光模組（如本^ 二第-習知例與第二習知例)相較，除了可以簡化組褒、製 程’及兼具有耐用、使用壽命長等特點外，且在光輝度: 面更能產生均質化的視覺效果。 惟以上所述者，僅為本發明之較佳實施例而已，當不 能以此限定本發明實施之範圍，即大凡依本發明申請專利 範圍及發明說明内容所作之簡單的等效變化與修飾，比1 屬本發明專利涵蓋之範圍内。 白乃 ^263756 【圖式簡單說明】 圖1是一立體圖 圖2是一立體圖 圖3是一頂視圖 施例； 說明以往的背光模組； 說明另一種現有的背光模組； ，說明本發明照明裝置的第一較佳實 圖4是一側視圖， 與數發光二極體（LED); 説明該第一較佳實施例中一 導光棒1263756 IX. DESCRIPTION OF THE INVENTION: TECHNICAL FIELD OF THE INVENTION The present invention relates to a lighting device, and more particularly to a lighting device capable of producing a uniform visual effect. [Prior Art] > Fig. 1, taking the case of the publication No. 595732 as an example, mainly a cold cathode lamp (CCFL) 丨2 is disposed on the incident end surface 111 of a light guide plate, and the two ends of the incident end face 111 are respectively A light-emitting diode (LED) 13 is disposed. The light-emitting diode (LED) 13 is used as an auxiliary light source, and is directly disposed on the light guide plate u± so that the light guide plate η has no light-emitting vignetting angle. However, since the light-emitting diodes (LEDs) 13 are directly disposed on the light guide plate u, the incident angle affects the traveling direction of the light, and the overall brightness is uneven. As the main light source, the light-emitting diodes (LEDs) 13 must be combined with a high-temperature cold cathode fluorescent lamp (CCFL) 12 as a main light source to achieve the desired brightness and brightness. However, the drive circuit of the cold cathode fluorescent lamp (CCFL) 12 is complicated and cannot operate at a low temperature, and the actuation reaction time is long, which is no longer in line with market demand. Referring to Fig. 2, in order to improve the above-mentioned deficiency, the case of US-6474826 is mainly that a light guide bar 22 is not disposed on one side of a light expansion plate 21, and two light emitting diodes (LEDs) 23 are disposed at a light guide. Rod 22 has two ends or one side. Thereby, the light guiding rod 22 can guide the light generated by the light emitting diode (Led) 23 to the light diffusing plate 21 in a straight line direction, thereby improving the light brightness. However, although the above structure can directly make the light-emitting diode (LED) 23 as the main light source, it is in 1263756. [Embodiment] The foregoing and other technical contents, features and effects of the present invention are described below with reference to the reference drawings. The detailed description of the various preferred embodiments will be apparent. Referring to Figures 3 and 4, a preferred embodiment of the illumination device of the present invention comprises a backlight module 3 and a point source 4. The backlight module 3 has a light diffusing plate 31 and four light guiding bars 32. The light diffusing plate 31 has a plurality of dots 311 on the surface of the cloth. These light guide bars u are integrally formed with the light diffusing plate 31, and are formed on the four sides of the light diffusing plate 31. In this embodiment, the light-collecting light sources (LEDs) 4 are respectively disposed on the adjacent end faces 32i of the light guiding bars 32, and are oriented toward the light guiding bars 32, so that the pointing light sources are respectively disposed. The light guiding rod 32 can guide the light generated by the light emitting diodes (LEDs) 4 to the light diffusing plate 35. Since the light emitting diodes (LEDs) 4 are arranged on the circumferential side of the light diffusing plate 31, the phenomenon of weakening of the brightness can be improved, and the light generated by the light emitting diodes (LEDs 4) can be Guided by the light guiding rods to the light diffusing plate 3, in the case of effectively improving the overall light brightness, the mesh dots 311 are arranged to achieve a uniform brightness, so that the overall brightness is as an accessory. As shown in the second, a homogenized visual effect is produced. Of course, the light-emitting diodes (LEDs) 4 may be disposed on both end faces 321 of the light guide bars 32 adjacent to each other at right angles as shown in Fig. 5 . Or as shown in FIG. 6, it is disposed on the outer side of the light guiding rods 32 from the milk. Or, as shown in FIG. 8 , a separate light diffusing plate 3 1 and two light guiding bars 32 , 7 1263756 are disposed on any two sides of the light diffusing plate 3i, and such The light-emitting diodes (LEDs) 4 are disposed on both end faces 321 of the light guide bars 32 that are adjacent to each other at right angles. Or as shown in FIG. 10, the light guide bars 2 are disposed on the three sides of the light diffusing plate 3H, and the light emitting diodes (UD) 4 are disposed on the light guiding bars 32. The two end faces 32 adjacent to each other at right angles can also achieve a uniform brightness as a whole in the case of effectively improving the overall brightness. In the figure π, FIG. 12, the backlight module 3 has a plurality of reflectors 33 in proportion to the number of the light guide bars. The reflectors 33 are respectively shielded from the leader 1 and have an opening 331 facing the light diffusing plate 3''. By this, by. The light emitted by the V-light bar 32 such as the sea is shielded by the reflectors 33, and is reflected back to the light guide bars 32, and then concentrated by the light guide bars 32 into the wires. The invention greatly reduces the loss of light, and effectively increases the light 7C degree, and causes the overall brightness to be uniform. According to the above description, the lighting device of the present invention has the following advantages and functions. The present invention directly uses the light-emitting diodes (LEDs) 4 as a light source, and the driver circuit is relatively simple and can operate at a low temperature. Wen Qi I has a large car, and it is more durable and has a long service life. It can meet the market demand... 2· Because of the invention, the majority of the hair is distributed in the optical expansion 31 4 The light source is provided, so that the phenomenon of weakening of the brightness can be improved: and the light generated by the light-emitting diodes (LED) 4 can be matched. The homing reflector 33 concentrates through the light guiding rods 32 to guide the person to the light 1263756. The scattering plate 3 is effective in improving the overall brightness, and it is not necessary to add elements such as ridges. Compared with the conventional backlight module (such as the second and second examples), in addition to simplifying the assembly process, the process and the durability and long service life, Brightness: The surface is more likely to produce a homogenized visual effect. The above is only the preferred embodiment of the present invention, and the scope of the invention is not limited thereto, that is, the simple equivalent changes and modifications made by the scope of the invention and the description of the invention are More than 1 is covered by the patent of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view. FIG. 2 is a perspective view. FIG. 3 is a top view embodiment; illustrating a conventional backlight module; illustrating another conventional backlight module; The first preferred embodiment of the device is a side view, a plurality of light emitting diodes (LEDs); a light guide bar in the first preferred embodiment is illustrated
圖5是一頂視圖 施例； 圖6是一頂視圖 施例； 圖7是一頂視圖 施例； 圖8是一頂視圖 施例； 圖9是一頂視圖 施例； 圖10是一頂視圖 施例； 圖11是一頂視圖 施例；及 圖12是一剖視圖 的值置關係。 ，說明本發明照明裝置的第二較佳實 ，說明本發明照明裝置的第三較佳實 ，說明本發明照明裝置的第四較佳實 ，說明本發明照明裝置的第五較佳實 ，說明本發明照明裝置的第六較佳實 ，說明本發明照明裝置的第七較佳實 ’說明本發明照明裝置的第八較佳實 ，說明該第八較佳實施例與二反射罩 10 1263756 附件： 、第二習知例的亮度分佈圖。 、本發明的亮度分佈圖。 1263756 【主要元件符號說明】 …背光模組 322 31 ……光擴散板 33 ^ 311 - ……網點 331 3 2…… ……導光棒 4… 321 - …端面 ^外側面 。反射罩 *開口 發光二極體 12Figure 5 is a top view embodiment; Figure 6 is a top view embodiment; Figure 7 is a top view embodiment; Figure 8 is a top view embodiment; Figure 9 is a top view embodiment; Figure 10 is a top view; View Example; Figure 11 is a top view embodiment; and Figure 12 is a cross-sectional view of the value relationship. A second preferred embodiment of the illuminating device of the present invention, a third preferred embodiment of the illuminating device of the present invention, a fourth preferred embodiment of the illuminating device of the present invention, and a fifth preferred embodiment of the illuminating device of the present invention will be described. A sixth preferred embodiment of the illuminating device of the present invention is a seventh preferred embodiment of the illuminating device of the present invention. The eighth preferred embodiment of the illuminating device of the present invention is described. The eighth preferred embodiment and the second reflecting cover 10 1263756 are described. : The brightness distribution map of the second conventional example. The brightness distribution map of the present invention. 1263756 [Description of main component symbols] ... backlight module 322 31 ... light diffusing plate 33 ^ 311 - ... dot 331 3 2... ...... light guide bar 4... 321 - ... end face ^ outer side. Reflector * Opening LEDs 12