M410166 五、新型說明： 【新型所屬之技術領域】 本創作係與高照明用燈具有關，更詳而言之是指一種具有 良好散熱效果的燈具。 【先前技術】 已知高照明用燈具在使用時經常伴隨著高溫問題，燈具在 長時間的高溫作用下易損及内部燈泡的使用壽命。 圖1為一種使用氙氣燈泡而可產生高照明效果的燈具i， 其反射燈罩2可將氙氣燈泡3投射至内表面的光線反射而自透 明蓋4穿出。此設計雖可改變部分光的投射方向以集中光束而 達到強化照明效果之目的，惟，該已知反射燈罩2的組成如圖 2所示，是以一塑板2a為主要型體，再於塑板2a内面塗設一 平坦化的金屬薄膜2b以提供鋪設一銘薄膜2c，紹薄膜2c主要 為反射光制’且其表面再為—透明膜2d所保護。其中，在 鋁薄膜2c反射光線並吸收熱能時，熱能因塑板％的導熱值不 佳（-般塑膝導熱值為〇,2〜〇.8 w/m.k)而緩慢散去，此情 形不僅造成燈具1内部（即反射燈罩2與透明蓋4所形成空間） 胤度升冋’更不利於燈具i的長時間使用。其次，該已知反射 燈罩2疋藉由預先塗設金屬難％方使得域膜&能穩固依 附’此結構關係徒增製程與成本。 3 【新型内容】 >有鐘於此，本創作之主要目的在於提供一種具有良好散熱 效果的燈具’是鱗紐佳的玻璃作絲熱料S，以提升燈 具的使用壽命。 本創作之次要目的在於提供—種具有良好散熱效果的燈 具，具有製程簡化之效果。 緣以達成上述目的’本創作所提供之具有良好散熱效果的 燈具包含-燈罩、一透光蓋及一發光體位於該燈罩與該透光蓋 之間’其特徵在於鮮具有—朗本體，以及—反射層設於該 坡璃本體之一表面，該表面面對該透光蓋。 依據上述構思，本創作一較佳實施例之反射層為鋁鍍膜。 依據上述構思，本創作一較佳實施例之燈罩更具有一散熱 層，該散熱層設於該玻璃本體相對設置有該反射層的另一表 面。 【實施方式】 為月b更清楚地說明本創作，茲舉較佳實施例並配合圖示詳 細說明如後。 圖3為本創作一較佳實施例之燈具1〇〇，其包括有一燈罩 透光蓋 20 及一以氤氣燈泡 3〇(High Intensive Discharge， HID)為例但不以此為限的發光體，該氙氣燈泡3〇係可產生 高於LED燈的流明度。 請再參圖4，上述燈罩10具有一弧形的玻璃本體i2，玻 璃本體12具有-内表面12a與一外表面既。其中在該内表 面12a上更設置有—反射層14用以反射騎氣燈㈣發光時 的光線Μ達成燈具100具有高照明效果的目的。在本實施例 中反射層14疋經真空鍍膜方式而製得，更具體的說，是以 鋁為濺鍍妹’餘猶（sputo)餘喊得厚度平均的反 射層14。此製作方式改善了上述必須以金屬薄膜2b作為_ 膜2c依晴象而徒增製程與成本的缺失。另外，在該反射層 14的表面更設有—透明的隔離塗層16以避免反射層14遭氧 化。 本創作的燈罩1G是以導熱值介於1.G〜1·4 W/m.k之間的 玻璃本體I2融要構成，其導熱伽顯優於轉的導熱值， 因此在反制14反射规麵收織時，該朗本體12能快 速地導熱’並搭配該具有大面積的外表面12b，故能產生良好 散熱效果以降低燈具觸内部的溫度，並達成延長燈具娜使 用壽命的目的。 、至於透光蓋20，係與燈罩1〇結合，其用途在於保護氣氣 燈泡3G ’並以具妓好光穿透效果為訴求，因此，本實施例 中的透光蓋2G是以—玻璃讀22為域，再於賴本體^ =對該燈罩10的表面上設有—抗反騎24,所述抗反射層24 疋以具射崎射率的材料製成，例域切（聊）、氧化 結（Zr〇2)、氧化銘（Al2〇3)姐化鎂（琴2)，且其厚度以 M410166 小於20/zm為佳。 在上述實施例中，是以改善燈罩結構來達成提高散熱效果 的目的，惟必須再說明的是’上述燈罩10的玻璃本體12之外 表面12b可適當地再加設一散熱層18 (圖5參照），以強化熱 能的傳導及散熱速度，所述散熱層18可為鈦鍍膜或是鐵氟龍 鍍膜。 以上所述僅為本創作較佳可行實施例而已，舉凡應用本創 作說明書及申請專利範圍所為之等效結構變化，理應包含在本# 創作之專利範圍内。 6 【圖式簡單說明】 圖1為已知燈具的剖視圖。 圖2為上述已知燈具之反射燈罩的局部示意圖。 圖3為本創作一較佳實施例燈具的剖視圖。 圖4為本創作上述較佳實施例燈具之燈罩的局部示意圖 圖5為本創作燈罩加設散熱層的局部示意圖。 【主要元件符號說明】 100燈具 10燈罩 12玻璃本體 12a内表面 12b外表面 14反射層 16隔離塗層 18散熱層 24抗反射層 20透光蓋 22玻璃本體 30氙氣燈泡M410166 V. New description: [New technical field] This creation is related to high-lumination lamps, and more specifically refers to a lamp with good heat dissipation effect. [Prior Art] It is known that high-illumination lamps are often accompanied by high temperature problems during use, and the lamps are vulnerable to long-term high temperature and the life of the internal bulbs. Fig. 1 is a luminaire i which can produce a high illumination effect using a xenon bulb, and the reflector 2 can reflect the light projected from the xenon bulb 3 to the inner surface and pass through the transparent cover 4. Although the design can change the projection direction of part of the light to concentrate the light beam to achieve the purpose of enhancing the illumination effect, the composition of the known reflective lamp cover 2 is as shown in FIG. 2, and the plastic plate 2a is the main body, and then The flat surface of the plastic plate 2a is coated with a flat metal film 2b to provide a film 2c. The film 2c is mainly made of reflected light and its surface is protected by a transparent film 2d. Wherein, when the aluminum film 2c reflects light and absorbs heat energy, the heat energy is slowly dissipated due to the poor heat conductivity of the plastic plate (the plastic heat conduction value of the knee is 〇, 2 to 8.8 w/mk), which is not only the case The interior of the lamp 1 (ie, the space formed by the reflector 2 and the transparent cover 4) is more disadvantageous for the long-term use of the lamp i. Secondly, the known reflective lampshade 2 allows the domain film & can be firmly adhered to by the pre-coating of the metal to increase the manufacturing process and cost. 3 [New Content] > There is a clock here, the main purpose of this creation is to provide a kind of luminaire with good heat dissipation effect. It is a glass-made hot material S of the scale to improve the service life of the lamp. The second objective of this creation is to provide a lamp with good heat dissipation effect, which has the effect of simplifying the process. In order to achieve the above objectives, the lamp having good heat dissipation effect provided by the present invention includes a lamp cover, a light-transmissive cover and an illuminant between the lamp cover and the light-transmissive cover, which are characterized by a fresh-language body, and The reflective layer is disposed on a surface of the glazing body, the surface facing the transparent cover. According to the above concept, the reflective layer of the preferred embodiment of the present invention is an aluminum plating film. According to the above concept, the lampshade of the preferred embodiment has a heat dissipation layer disposed on the other surface of the glass body opposite to the reflective layer. [Embodiment] The present invention will be more clearly explained for the month b, and the preferred embodiment will be described in detail with reference to the drawings. FIG. 3 is a luminaire of a preferred embodiment of the present invention, which includes a lamp cover transparent cover 20 and an illuminant such as a High Intensive Discharge (HID), but not limited thereto. The Xenon bulb 3 can produce a higher lumen than the LED lamp. Referring again to Figure 4, the lampshade 10 has an arcuate glass body i2 having an inner surface 12a and an outer surface. The inner surface 12a is further provided with a reflective layer 14 for reflecting the light when the arc lamp (4) emits light, thereby achieving the purpose of the lamp 100 having a high illumination effect. In the present embodiment, the reflective layer 14 is formed by vacuum coating, and more specifically, aluminum is used as a reflective layer 14 which is sputtered to the thickness of the sister's sputa. This manufacturing method improves the above-mentioned necessity of using the metal thin film 2b as the etch film 2c to increase the process and cost. Further, a transparent barrier coating 16 is provided on the surface of the reflective layer 14 to prevent the reflective layer 14 from being oxidized. The lampshade 1G of the present invention is composed of a glass body I2 having a heat conduction value of 1. G~1·4 W/mk, and the heat conduction gamma is superior to the heat conduction value of the turn, so the counter-reflection surface is reversed. When the weaving is woven, the lang body 12 can quickly conduct heat and match the outer surface 12b having a large area, so that a good heat dissipation effect can be produced to reduce the temperature inside the luminaire, and the purpose of extending the life of the lamp is achieved. As for the light-transmitting cover 20, it is combined with the lamp cover 1 ,, and its purpose is to protect the gas-gas bulb 3G′ and to have a good light penetration effect. Therefore, the light-transmitting cover 2G in the embodiment is a glass. The reading 22 is a domain, and then the body is ^^. The surface of the lampshade 10 is provided with an anti-anti-riding 24, and the anti-reflective layer 24 is made of a material having a shooting rate, for example, Oxidation (Zr〇2), Oxidation (Al2〇3), magnesium (Qin 2), and its thickness is preferably M410166 less than 20/zm. In the above embodiment, the heat dissipation effect is improved by improving the structure of the lampshade, but it must be further explained that the outer surface 12b of the glass body 12 of the lampshade 10 can be appropriately provided with a heat dissipation layer 18 (FIG. 5). For reference, to enhance the conduction and heat dissipation rate of thermal energy, the heat dissipation layer 18 may be a titanium coating or a Teflon coating. The above description is only for the preferred embodiment of the present invention, and the equivalent structural changes applied to the present invention and the scope of the patent application are included in the scope of the patent. 6 [Simple description of the drawings] Fig. 1 is a cross-sectional view of a known lamp. 2 is a partial schematic view of a reflector of the above known lamp. 3 is a cross-sectional view of a luminaire in accordance with a preferred embodiment of the present invention. 4 is a partial schematic view showing the lampshade of the lamp of the above preferred embodiment. FIG. 5 is a partial schematic view showing the heat sink layer of the lampshade. [Main component symbol description] 100 lamps 10 lampshade 12 glass body 12a inner surface 12b outer surface 14 reflective layer 16 isolating coating 18 heat dissipation layer 24 anti-reflection layer 20 transparent cover 22 glass body 30 xenon bulb