TWI510743B - Lighting fixture and lighting apparatus - Google Patents
Lighting fixture and lighting apparatus Download PDFInfo
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- TWI510743B TWI510743B TW104107041A TW104107041A TWI510743B TW I510743 B TWI510743 B TW I510743B TW 104107041 A TW104107041 A TW 104107041A TW 104107041 A TW104107041 A TW 104107041A TW I510743 B TWI510743 B TW I510743B
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Description
本發明是有關於一種光源裝置,且特別是有關於一種照明燈具。The present invention relates to a light source device, and more particularly to a lighting fixture.
請參照第1圖,其係繪示一種傳統照明燈具的裝置示意圖。目前之照明燈具100係採直下式設計。此照明燈具100一般包含燈罩102、數個燈管106與反射片104。燈管106設置在燈罩102內。反射片104同樣設置在燈罩102內,且設在每個燈管106之二側,以將燈管106朝側邊所發出之光108朝照明燈具100之出光面反射。Please refer to FIG. 1 , which is a schematic diagram of a device of a conventional lighting fixture. At present, the lighting fixture 100 is designed to be straight. The lighting fixture 100 generally includes a lampshade 102, a plurality of lamps 106 and a reflective sheet 104. The bulb 106 is disposed within the globe 102. The reflection sheet 104 is also disposed in the lamp cover 102 and disposed on two sides of each of the lamps 106 to reflect the light 108 emitted from the lamp 106 toward the side toward the light exit surface of the illumination lamp 100.
在此傳統之照明燈具100中,通常係透過燈罩之造型設計,來使燈管106所發出之光108集中。藉此,使照明燈具100以朗伯(Lambertian)的光場分布出光。In the conventional lighting fixture 100, the light 108 emitted by the bulb 106 is concentrated by the design of the lampshade. Thereby, the lighting fixture 100 is distributed with light in a Lambertian light field.
然而,由於照明燈具100之出光僅具有一種光場分布,如此一來將導致照明燈具100之應用受限。此外,受限於照明燈具100之光場分布集中與燈罩102的影響,無法將多個照明燈具100拼接來獲得均勻的出光,如此也都會使照明燈具100的應用受限。However, since the light emitted by the lighting fixture 100 has only one light field distribution, the application of the lighting fixture 100 will be limited. In addition, limited by the concentration of the light field distribution of the lighting fixture 100 and the influence of the lampshade 102, it is impossible to splicing the plurality of lighting fixtures 100 to obtain uniform light output, which also limits the application of the lighting fixture 100.
請參照第2圖,其係繪示另一種傳統照明燈具的 剖面圖。照明燈具200主要包含背框202、導光元件214、至少一光源210與擴散板220。背框202主要包含底板204、側板206與頂板208。頂板208與底板204位於背框202之相對二側。而側板206接合在頂板208與底板204之外側邊之間。頂板208具有開孔226,以利光自背框202出射。Please refer to Figure 2, which shows another conventional lighting fixture. Sectional view. The lighting fixture 200 mainly includes a back frame 202, a light guiding element 214, at least one light source 210 and a diffusing plate 220. The back frame 202 mainly includes a bottom plate 204, side plates 206 and a top plate 208. The top plate 208 and the bottom plate 204 are located on opposite sides of the back frame 202. The side panel 206 is joined between the top panel 208 and the outer side of the bottom panel 204. The top plate 208 has an opening 226 for the light to exit from the back frame 202.
導光元件214設置在背框202中。導光元件214 具有反射面240、入光面216與出光面218。反射面240與出光面218分別位於導光元件214之相對二側。入光面216則接合在反射面240與出光面218之間,因此入光面216與出光面218和反射面240均相鄰。反射面240面對背框202之底板204,入光面216面朝側板206,而出光面218則面向頂板208之開孔226。因此,開孔226暴露出導光元件214之出光面218。頂板208遮蓋住導光元件214之外周緣的部分,亦即頂板208之開孔226的邊緣228位在導光元件214之出光面218上方。The light guiding element 214 is disposed in the back frame 202. Light guiding element 214 There is a reflecting surface 240, a light incident surface 216 and a light exit surface 218. The reflecting surface 240 and the light emitting surface 218 are respectively located on opposite sides of the light guiding element 214. The light incident surface 216 is joined between the reflective surface 240 and the light exit surface 218. Therefore, the light incident surface 216 is adjacent to both the light exit surface 218 and the reflective surface 240. The reflective surface 240 faces the bottom plate 204 of the back frame 202, the light incident surface 216 faces the side plate 206, and the light exit surface 218 faces the opening 226 of the top plate 208. Thus, the aperture 226 exposes the light exit surface 218 of the light guiding element 214. The top plate 208 covers a portion of the outer periphery of the light guiding member 214, that is, the edge 228 of the opening 226 of the top plate 208 is positioned above the light emitting surface 218 of the light guiding member 214.
光源210亦設置在背框202中,且鄰設於導光元 件214之入光面216。此外,光源210為背框202之底板204、側板206與頂板208,以及導光元件214所包圍。光源210具有出光面212。此出光面212與導光元件214之入光面216相面對,因此光源210可經由出光面212而朝導光元件214之入光面216發射光232。照明燈具200可僅包含一光源210或可包含多個光源210鄰設於導光元件214之入光面216。The light source 210 is also disposed in the back frame 202 and adjacent to the light guide element. The light incident surface 216 of the piece 214. In addition, the light source 210 is surrounded by the bottom plate 204 of the back frame 202, the side plates 206 and the top plate 208, and the light guiding element 214. The light source 210 has a light exit surface 212. The light-emitting surface 212 faces the light-incident surface 216 of the light-guiding element 214. Therefore, the light source 210 can emit light 232 to the light-incident surface 216 of the light-guiding element 214 via the light-emitting surface 212. The illuminating device 200 may include only one light source 210 or may include a plurality of light sources 210 adjacent to the light incident surface 216 of the light guiding element 214.
擴散板220設置在背框202之頂板208上,且覆 蓋在頂板208之開孔226上。擴散板220之範圍需涵蓋住整個開孔226。擴散板220具有表面222與224。此二表面222與224分別位於擴散板220之相對二側。擴散板220之表面222與導光元件214之出光面218相面對。擴散板220可固定在背框202之頂板208上。如第2圖所示,擴散板220可僅延伸於頂板208之開孔226與開孔226之外緣區域上,但並未完全遮蓋住頂板208。The diffusion plate 220 is disposed on the top plate 208 of the back frame 202 and covered Covered on the opening 226 of the top plate 208. The extent of the diffuser plate 220 needs to cover the entire opening 226. The diffuser plate 220 has surfaces 222 and 224. The two surfaces 222 and 224 are respectively located on opposite sides of the diffusion plate 220. The surface 222 of the diffuser 220 faces the light exit surface 218 of the light guiding element 214. The diffuser plate 220 can be secured to the top plate 208 of the back frame 202. As shown in FIG. 2, the diffuser plate 220 may extend only over the outer edge of the top plate 208 and the outer edge of the opening 226, but does not completely cover the top plate 208.
在照明燈具200中,光源210經由出光面212而 朝導光元件214之入光面216發射光232。光232經由導光元件214之入光面216進入導光元件214後,射向反射面240之光232經反射面240反射至出光面218,再經由出光面218射出導光元件214。光232接著經由表面222射入擴散板220,經擴散板220折射擴散後,而自擴散板220之表面224射出照明燈具200。In the lighting fixture 200, the light source 210 is via the light exit surface 212 Light 232 is emitted toward the light incident surface 216 of the light guiding element 214. After the light 232 enters the light guiding element 214 via the light incident surface 216 of the light guiding element 214, the light 232 that is incident on the reflecting surface 240 is reflected by the reflecting surface 240 to the light emitting surface 218, and then the light guiding element 214 is emitted through the light emitting surface 218. The light 232 then enters the diffuser 220 via the surface 222, is refracted and diffused by the diffuser 220, and exits the illumination fixture 200 from the surface 224 of the diffuser 220.
因此,本發明之一態樣就是在提供一種照明燈具與照明設備,其包含導光元件與擴散板,且導光元件與擴散板之間設有混光空間,因此可大幅提高照明燈具與照明設備的出光均勻度。Therefore, an aspect of the present invention is to provide a lighting fixture and a lighting device, comprising a light guiding component and a diffusing plate, and a light mixing space between the light guiding component and the diffusing plate, thereby greatly improving the lighting fixture and the lighting The uniformity of the light output of the device.
本發明之另一態樣是在提供一種照明燈具,其可藉由設計導光元件與擴散板之間的混光距離、以及導光元件的表面結構,來使照明燈具的出光達到無邊框效果。因 此,多個照明燈具可無間隔的拼接,而獲得一均勻出光的大型照明設備,進而可有效提高照明燈具的應用性。Another aspect of the present invention provides a lighting fixture capable of achieving a borderless effect of a lighting fixture by designing a light mixing distance between a light guiding member and a diffusing panel and a surface structure of the light guiding member. . because In this way, a plurality of lighting fixtures can be spliced without spacing, and a large illumination device with uniform light output can be obtained, thereby effectively improving the applicability of the lighting fixture.
本發明之又一態樣是在提供一種照明燈具與照 明設備,其可藉由設計導光元件與擴散板之表面結構、以及導光元件與擴散板之間的混光距離,來設計照明燈具的光場分布,因此可增進照明燈具與照明設備的應用性。Yet another aspect of the present invention is to provide a lighting fixture and a photo The device can design the light field distribution of the lighting fixture by designing the surface structure of the light guiding component and the diffusing plate, and the light mixing distance between the light guiding component and the diffusing plate, thereby improving the lighting fixture and the lighting device. Application.
根據本發明之上述目的,提出一種照明燈具。 此照明燈具包含一背框、一導光元件、至少一光源以及一擴散板。此背框包含一頂板及一連結件。頂板具有一開孔,連結件接合在頂板上。導光元件設於背框內,且包含一入光面及一出光面。其中,入光面與出光面相鄰,且開孔顯露出此出光面。前述之至少一光源設於背框內,且鄰設於入光面。 擴散板設於在前述之連結件上,且完全遮蓋住頂板。According to the above object of the invention, a lighting fixture is proposed. The lighting fixture comprises a back frame, a light guiding component, at least one light source and a diffusing plate. The back frame includes a top plate and a connecting piece. The top plate has an opening and the attachment member is joined to the top plate. The light guiding component is disposed in the back frame and includes a light incident surface and a light exiting surface. Wherein, the light incident surface is adjacent to the light exit surface, and the opening reveals the light exit surface. The at least one light source is disposed in the back frame and adjacent to the light incident surface. The diffuser plate is disposed on the aforementioned connecting member and completely covers the top plate.
依據本發明之一實施例,上述導光元件更包含一反射面與出光面相對,反射面設有複數個表面微結構。在一例子中,每一表面微結構包含一弧型凸狀結構或一錐型凸狀結構。在另一例子中,每一表面微結構包含一V型切槽(V-cut)條狀結構垂直入光面之法線。According to an embodiment of the invention, the light guiding element further comprises a reflecting surface opposite to the light emitting surface, and the reflecting surface is provided with a plurality of surface microstructures. In one example, each surface microstructure comprises an arcuate convex structure or a conical convex structure. In another example, each surface microstructure comprises a V-cut strip-like structure that is normal to the vertical entrance face.
依據本發明之另一實施例,上述之擴散板具有相對之一第一表面與一第二表面,第一表面與出光面相面對,且擴散板包含複數個表面微結構,這些表面微結構設於第一表面或第二表面上。According to another embodiment of the present invention, the diffusing plate has a first surface opposite to the second surface, the first surface faces the light emitting surface, and the diffusing plate includes a plurality of surface microstructures. On the first surface or the second surface.
依據本發明之再一實施例,上述之連結件斜向接合在開孔之一邊緣,且連結件與頂板之間之一夾角小於90度。According to still another embodiment of the present invention, the connecting member is obliquely joined to one of the edges of the opening, and an angle between the connecting member and the top plate is less than 90 degrees.
根據本發明之上述目的,另提出一種照明設備。此照明設備包含複數個照明燈具。這些照明燈具互相接合而排列成一預設形狀。每一照明燈具包含一背框、一導光元件、至少一光源以及一擴散板。背框包含一頂板及一連結件。頂板具有一開孔,連結件接合在頂板上。導光元件設於背框內,且包含一入光面及一出光面。其中,入光面與出光面相鄰,且前述之開孔顯露出此出光面。前述之至少一光源設於背框內,且鄰設於入光面。擴散板設於連結件上,且完全遮蓋住頂板。According to the above object of the invention, a lighting device is further proposed. This lighting fixture contains a plurality of lighting fixtures. The luminaires are joined to each other and arranged in a predetermined shape. Each lighting fixture comprises a back frame, a light guiding element, at least one light source and a diffusing plate. The back frame includes a top plate and a connecting piece. The top plate has an opening and the attachment member is joined to the top plate. The light guiding component is disposed in the back frame and includes a light incident surface and a light exiting surface. Wherein, the light incident surface is adjacent to the light exiting surface, and the opening is exposed to expose the light emitting surface. The at least one light source is disposed in the back frame and adjacent to the light incident surface. The diffuser plate is disposed on the connecting member and completely covers the top plate.
依據本發明之一實施例,上述相鄰之照明燈具之擴散板互相接合。According to an embodiment of the invention, the diffusing plates of the adjacent lighting fixtures are joined to each other.
依據本發明之另一實施例,上述每一導光元件更包含一反射面與出光面相對,此反射面設有複數個表面微結構。According to another embodiment of the present invention, each of the light guiding elements further includes a reflecting surface opposite to the light emitting surface, and the reflecting surface is provided with a plurality of surface microstructures.
依據本發明之又一實施例,上述每一擴散板具有相對之一第一表面與一第二表面,第一表面與出光面相面對,且擴散板包含複數個表面微結構,這些表面微結構設於第一表面或第二表面上。According to still another embodiment of the present invention, each of the diffusing plates has a first surface and a second surface, the first surface faces the light emitting surface, and the diffusing plate includes a plurality of surface microstructures, and the surface microstructures Provided on the first surface or the second surface.
依據本發明之再一實施例,在每一照明燈具中,上述連結件斜向接合在開孔之一邊緣,且連結件與頂板之間之一夾角小於90度。According to still another embodiment of the present invention, in each of the lighting fixtures, the connecting member is obliquely joined to one of the edges of the opening, and an angle between the connecting member and the top plate is less than 90 degrees.
100‧‧‧照明燈具100‧‧‧Lighting fixtures
102‧‧‧燈罩102‧‧‧shade
104‧‧‧反射片104‧‧‧reflector
106‧‧‧燈管106‧‧‧Light tube
108‧‧‧光108‧‧‧Light
200‧‧‧照明燈具200‧‧‧Lighting fixtures
202‧‧‧背框202‧‧‧ Back frame
204‧‧‧底板204‧‧‧floor
206‧‧‧側板206‧‧‧ side panels
208‧‧‧頂板208‧‧‧ top board
210‧‧‧光源210‧‧‧Light source
212‧‧‧出光面212‧‧‧Glossy surface
214‧‧‧導光元件214‧‧‧Light guiding elements
216‧‧‧入光面216‧‧‧ into the glossy surface
218‧‧‧出光面218‧‧‧Glossy
220‧‧‧擴散板220‧‧‧Diffuser
222‧‧‧表面222‧‧‧ surface
224‧‧‧表面224‧‧‧ surface
226‧‧‧開孔226‧‧‧ openings
228‧‧‧邊緣228‧‧‧ edge
232‧‧‧光232‧‧‧Light
240‧‧‧反射面240‧‧‧reflecting surface
300‧‧‧照明燈具300‧‧‧Lighting fixtures
302‧‧‧背框302‧‧‧ Back frame
304‧‧‧底板304‧‧‧floor
306‧‧‧側板306‧‧‧ side panels
308‧‧‧頂板308‧‧‧ top board
310‧‧‧光源310‧‧‧Light source
312‧‧‧出光面312‧‧‧Glossy surface
314‧‧‧導光元件314‧‧‧Light guiding elements
314a‧‧‧導光元件314a‧‧‧Lighting elements
314b‧‧‧導光元件314b‧‧‧Light guiding element
316‧‧‧入光面316‧‧‧Into the glossy surface
318‧‧‧出光面318‧‧‧Glossy
320‧‧‧擴散板320‧‧‧Diffuser
322‧‧‧表面322‧‧‧ surface
324‧‧‧表面324‧‧‧ surface
326‧‧‧開孔326‧‧‧Opening
328‧‧‧邊緣328‧‧‧ edge
330‧‧‧外緣330‧‧‧ outer edge
332‧‧‧光332‧‧‧Light
334‧‧‧連結件334‧‧‧Links
336‧‧‧混光距離336‧‧‧Diffuse distance
338a‧‧‧表面微結構338a‧‧‧Surface microstructure
338b‧‧‧表面微結構338b‧‧‧Surface microstructure
340‧‧‧反射面340‧‧‧reflecting surface
342‧‧‧外緣342‧‧‧ outer edge
344‧‧‧開孔344‧‧‧Opening
346‧‧‧第一軸向346‧‧‧First axial
348‧‧‧第二軸向348‧‧‧second axial
400‧‧‧照明設備400‧‧‧Lighting equipment
D‧‧‧高度D‧‧‧ Height
W‧‧‧寬度W‧‧‧Width
α‧‧‧夾角‧‧‧‧ angle
θ‧‧‧頂角Θ‧‧‧ top angle
為讓本發明之上述和其他目的、特徵、優點與實施例能更明顯易懂,所附圖式之說明如下:〔第1圖〕係繪示一種傳統照明燈具的裝置示意圖;〔第2圖〕係繪示另一種傳統照明燈具的剖面圖;〔第3圖〕係繪示依照本發明之一實施方式的一種照明燈具的剖面圖;〔第4A圖〕係繪示依照本發明之一實施方式的一種照明設備的上視圖;〔第4B圖〕係繪示依照本發明之一實施方式的一種照明設備的剖面圖;〔第5A圖〕係繪示依照本發明之另一實施方式的一種導光元件的立體圖;〔第5B圖〕係繪示依照本發明之一實施方式的一種導光元件的光場分布圖;〔第5C圖〕係繪示依照本發明之另一實施方式的一種導光元件的光場分布圖;〔第5D圖〕係繪示依照本發明之又一實施方式的一種導光元件的光場分布圖;〔第5E圖〕係繪示依照本發明之再一實施方式的一種導光元件的光場分布圖; 〔第6A圖〕係繪示依照本發明之又一實施方式的一種導光元件的立體圖;〔第6B圖〕係繪示依照本發明之再一實施方式的一種導光元件的光場分布圖;以及〔第6C圖〕係繪示依照本發明之再一實施方式的一種導光元件的光場分布圖。The above and other objects, features, advantages and embodiments of the present invention will become more <RTIgt; <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; A cross-sectional view showing another conventional lighting fixture; [Fig. 3] is a cross-sectional view showing a lighting fixture according to an embodiment of the present invention; [Fig. 4A] is a diagram showing implementation according to one embodiment of the present invention. A top view of a lighting device in a manner; [Fig. 4B] is a cross-sectional view showing a lighting device in accordance with an embodiment of the present invention; [Fig. 5A] is a view showing another embodiment of the present invention. A perspective view of a light guiding element; [Fig. 5B] is a light field distribution diagram of a light guiding element according to an embodiment of the present invention; [Fig. 5C] is a view showing another embodiment of the present invention. a light field distribution diagram of the light guiding element; [Fig. 5D] is a light field distribution diagram of a light guiding element according to still another embodiment of the present invention; [Fig. 5E] shows another one according to the present invention. a light guiding element of an embodiment FIG optical field distributions; [Fig. 6A] is a perspective view showing a light guiding member according to still another embodiment of the present invention; [Fig. 6B] is a view showing a light field distribution of a light guiding member according to still another embodiment of the present invention. And [6C] is a light field distribution diagram of a light guiding element according to still another embodiment of the present invention.
請參照第3圖,其係繪示依照本發明之一實施方式的一種照明燈具的剖面圖。在本實施方式中,照明燈具300主要包含背框302、導光元件314、至少一光源310與透光板。在本實施例之中,透光板是擴散板320。背框302主要包含底板304、側板306與頂板308。頂板308與底板304位於背框302之相對二側。而側板306接合在頂板308與底板304之外側邊之間。頂板308具有開孔326,以利光自背框302出射。在一實施例中,背框302之材料可選用金屬,以利照明燈具300之散熱。Please refer to FIG. 3, which is a cross-sectional view of a lighting fixture in accordance with an embodiment of the present invention. In the present embodiment, the lighting fixture 300 mainly includes a back frame 302, a light guiding element 314, at least one light source 310 and a light transmitting plate. In the present embodiment, the light transmissive plate is a diffusion plate 320. The back frame 302 mainly includes a bottom plate 304, side plates 306 and a top plate 308. The top plate 308 and the bottom plate 304 are located on opposite sides of the back frame 302. The side panel 306 is joined between the top panel 308 and the outer side of the bottom panel 304. The top plate 308 has an opening 326 for the light to exit from the back frame 302. In an embodiment, the material of the back frame 302 may be made of metal to facilitate heat dissipation of the lighting fixture 300.
導光元件314設置在背框302中。導光元件314具有反射面340、入光面316與出光面318。反射面340與出光面318分別位於導光元件314之相對二側。入光面316則接合在反射面340與出光面318之間,因此入光面316與出光面318和反射面340均相鄰。反射面340面對背框302之底板304,入光面316面朝側板306,而出光面318則面向頂板308之開孔326。因此,開孔326暴露出導光元件314之出光 面318。在一實施例中,頂板308遮蓋住導光元件314之外周緣的部分,亦即頂板308之開孔326的邊緣328位在導光元件314之出光面318上方。根據照明燈具300之應用需求,導光元件314可例如為一均勻厚度之平板,或可例如為楔型板。The light guiding element 314 is disposed in the back frame 302. The light guiding element 314 has a reflecting surface 340, a light incident surface 316 and a light emitting surface 318. The reflecting surface 340 and the light emitting surface 318 are respectively located on opposite sides of the light guiding element 314. The light incident surface 316 is joined between the reflecting surface 340 and the light emitting surface 318, so that the light incident surface 316 is adjacent to both the light emitting surface 318 and the reflecting surface 340. The reflective surface 340 faces the bottom plate 304 of the back frame 302, the light incident surface 316 faces the side plate 306, and the light exit surface 318 faces the opening 326 of the top plate 308. Therefore, the opening 326 exposes the light from the light guiding element 314. Face 318. In one embodiment, the top plate 308 covers the outer periphery of the light guiding element 314, that is, the edge 328 of the opening 326 of the top plate 308 is above the light emitting surface 318 of the light guiding element 314. Depending on the application requirements of the lighting fixture 300, the light directing element 314 can be, for example, a flat plate of uniform thickness, or can be, for example, a wedge shaped plate.
光源310亦設置在背框302中,且鄰設於導光元件314之入光面316。此外,光源310為背框302之底板304、側板306與頂板308,以及導光元件314所包圍。光源310具有出光面312。此出光面312與導光元件314之入光面316相面對,因此光源310可經由出光面312而朝導光元件314之入光面316發射光332。在一實施例中,照明燈具300可僅包含一光源310。在其他實施例中,照明燈具300可包含多個光源310鄰設於導光元件314之入光面316。光源310可例如為發光二極體等半導體發光元件、燈泡、或者冷陰極燈管等燈管型光源。The light source 310 is also disposed in the back frame 302 and adjacent to the light incident surface 316 of the light guiding element 314. In addition, the light source 310 is surrounded by the bottom plate 304 of the back frame 302, the side plates 306 and the top plate 308, and the light guiding element 314. Light source 310 has a light exit surface 312. The light-emitting surface 312 faces the light-incident surface 316 of the light-guiding element 314. Therefore, the light source 310 can emit light 332 toward the light-incident surface 316 of the light-guiding element 314 via the light-emitting surface 312. In an embodiment, the lighting fixture 300 can include only one light source 310. In other embodiments, the lighting fixture 300 can include a plurality of light sources 310 adjacent to the light incident surface 316 of the light guiding element 314. The light source 310 can be, for example, a semiconductor light-emitting element such as a light-emitting diode, a bulb, or a tube-type light source such as a cold cathode lamp.
擴散板320設置在背框302之頂板308上,且覆蓋在頂板308之開孔326上。在本實施方式中,擴散板320之範圍需涵蓋住整個開孔326。擴散板320具有表面322與324。此二表面322與324分別位於擴散板320之相對二側。擴散板320之表面322與導光元件314之出光面318相面對。擴散板320可例如固定在背框302之頂板308上。The diffuser plate 320 is disposed on the top plate 308 of the back frame 302 and covers the opening 326 of the top plate 308. In the present embodiment, the extent of the diffuser plate 320 needs to cover the entire opening 326. The diffuser plate 320 has surfaces 322 and 324. The two surfaces 322 and 324 are respectively located on opposite sides of the diffusion plate 320. The surface 322 of the diffuser 320 faces the light exit surface 318 of the light guiding element 314. The diffuser plate 320 can be secured, for example, to the top plate 308 of the back frame 302.
在另一實施例中,擴散板320之形狀和尺寸可與頂板308之形狀和尺寸相同,且擴散板320完全遮蓋住頂板308,亦即擴散板320之外緣對齊頂板308之外緣330。如 此一來,照明燈具300具有無邊框的效果。因此,將數個照明燈具300拼接成一較大型的照明設備時,相鄰之照明燈具300之擴散板320可互相接合,相鄰擴散板320之間彼此並無間隔。In another embodiment, the diffuser plate 320 can be the same shape and size as the top plate 308, and the diffuser plate 320 completely covers the top plate 308, that is, the outer edge of the diffuser plate 320 is aligned with the outer edge 330 of the top plate 308. Such as As a result, the lighting fixture 300 has a borderless effect. Therefore, when the plurality of lighting fixtures 300 are spliced into a larger type of lighting device, the diffusing plates 320 of the adjacent lighting fixtures 300 can be joined to each other, and the adjacent diffusing plates 320 are not spaced apart from each other.
在照明燈具300中,光源310經由出光面312而朝導光元件314之入光面316發射光332。光332經由導光元件314之側面入光面316進入導光元件314後,射向反射面340之光332經反射面340反射至出光面318,再經由出光面318射出導光元件314。光332接著經由表面322射入擴散板320,經擴散板320折射擴散後,而自擴散板320之表面324射出照明燈具300。透過導光元件314與擴散板320的導引與擴散,可使照明燈具300之出光的光場分布更為均勻。In the luminaire 300, the light source 310 emits light 332 toward the light incident surface 316 of the light guiding element 314 via the light exit surface 312. After the light 332 enters the light guiding element 314 via the side light incident surface 316 of the light guiding element 314, the light 332 that is incident on the reflecting surface 340 is reflected by the reflecting surface 340 to the light emitting surface 318, and then the light guiding element 314 is emitted through the light emitting surface 318. The light 332 then enters the diffuser 320 via the surface 322, is refracted and diffused by the diffuser 320, and exits the illumination fixture 300 from the surface 324 of the diffuser 320. Through the guiding and diffusion of the light guiding element 314 and the diffusing plate 320, the light field distribution of the light emitted by the lighting fixture 300 can be more uniform.
在本實施方式中,照明燈具300之背框302更包含連結件334,連結件334具有開孔344,且擴散板320設置在連結件334上,並遮蓋住開孔344。頂板308之開孔326與連結件334之開孔344在第一軸向346上存在一距離。如此一來,此連結件334可隔開導光元件314之出光面318與擴散板320,而使出光面318與擴散板320之表面322之間具有一混光距離336。如第3圖所示,連接件334之內表面可將光332反射。在一些例子中,在不同於第一軸向346的第二軸向348上,連結件334之開孔344的開孔尺寸大於頂板308之開孔326的開孔尺寸,藉此設計可使擴散板320之範圍涵蓋住整個開孔326。在一些示範例子中,第一軸向346與第二軸向348互相垂直。In the present embodiment, the back frame 302 of the lighting fixture 300 further includes a connecting member 334 having an opening 344, and the diffusing plate 320 is disposed on the connecting member 334 and covers the opening 344. The opening 326 of the top plate 308 and the opening 344 of the link 334 are at a distance in the first axial direction 346. In this way, the connecting member 334 can separate the light emitting surface 318 of the light guiding element 314 from the diffusing plate 320, and has a light mixing distance 336 between the light emitting surface 318 and the surface 322 of the diffusing plate 320. As shown in FIG. 3, the inner surface of the connector 334 reflects light 332. In some examples, in the second axial direction 348 that is different from the first axial direction 346, the opening 344 of the attachment member 334 has a larger opening size than the opening 326 of the top plate 308, thereby allowing for diffusion. The extent of the plate 320 covers the entire opening 326. In some exemplary examples, the first axial direction 346 and the second axial direction 348 are perpendicular to each other.
在照明燈具300之背框302中,連結件334斜向 接合在頂板308之開孔326的邊緣328。而且,連結件334與頂板308之間的夾角α小於90度。In the back frame 302 of the lighting fixture 300, the link 334 is oblique Engaged at the edge 328 of the opening 326 of the top plate 308. Moreover, the angle α between the link 334 and the top plate 308 is less than 90 degrees.
在照明燈具300中,藉由調整連結件334與頂板 308間之夾角α的大小,可使導光元件314之出光面318與擴散板320之表面322之間具有所需之混光距離336。如此一來,光源310所發出之光332經導光元件314之導引而射出導光元件314後,可在導光元件314與擴散板320之間充分混光後再進入擴散板320,而經擴散板320折射擴散後射出照明燈具300。因此,照明燈具300之出光的光場分布可較更為均勻。In the lighting fixture 300, by adjusting the link 334 and the top plate The angle α between the 308s provides a desired blending distance 336 between the light exiting surface 318 of the light guiding element 314 and the surface 322 of the diffusing plate 320. In this way, after the light 332 emitted by the light source 310 is guided by the light guiding element 314 and exits the light guiding element 314, the light 340 can be fully mixed with the diffusing plate 320 and then enter the diffusing plate 320. After the diffusion plate 320 is refracted and diffused, the lighting fixture 300 is emitted. Therefore, the light field distribution of the light emitted by the lighting fixture 300 can be more uniform.
在另一實施例中,連結件334朝頂板308之開孔 326外側延伸之程度係使連結件334之外緣342與頂板308之外緣330對齊。此外,固定在連結件334上之擴散板320的範圍完全涵蓋了頂板308的範圍。如此一來,照明燈具300同樣具有無邊框的效果。因此,將數個照明燈具300拼接成一較大型的照明設備時,相鄰之照明燈具300之擴散板320可互相接合,相鄰擴散板320之間彼此並無間隔。In another embodiment, the connecting member 334 is opened toward the top plate 308. The extent of the outer extension of 326 is such that the outer edge 342 of the link 334 is aligned with the outer edge 330 of the top plate 308. Moreover, the extent of the diffuser plate 320 secured to the link 334 fully encompasses the extent of the top plate 308. As a result, the lighting fixture 300 also has a borderless effect. Therefore, when the plurality of lighting fixtures 300 are spliced into a larger type of lighting device, the diffusing plates 320 of the adjacent lighting fixtures 300 can be joined to each other, and the adjacent diffusing plates 320 are not spaced apart from each other.
請參照第4A圖與第4B圖,其係分別繪示依照 本發明之一實施方式的一種照明設備的上視圖與剖面圖。在此實施方式中,照明設備400包含四個照明燈具300。這些照明燈具300互相接合而排列成所需之預設形狀。如第4A圖所示,這四個照明燈具300排列成一矩形的照明設備 400。在另一實施例中,根據實際應用需求,照明設備400可包含二個以上,例如三個、五個等等的照明燈具300。Please refer to the 4A and 4B drawings, which are respectively drawn according to A top view and a cross-sectional view of a lighting device in accordance with an embodiment of the present invention. In this embodiment, the lighting device 400 includes four lighting fixtures 300. These lighting fixtures 300 are joined to each other and arranged in a desired predetermined shape. As shown in FIG. 4A, the four lighting fixtures 300 are arranged in a rectangular lighting device. 400. In another embodiment, the lighting device 400 may include more than two, for example three, five, etc. lighting fixtures 300, depending on the actual application requirements.
在照明設備400中,由於每個照明燈具300之擴 散板320的範圍完全涵蓋了頂板308的範圍,照明燈具300具有無邊框的效果。因此,如第4B圖所示,照明設備400中相鄰之二照明燈具300的擴散板320可互相接合,且相鄰之擴散板320之間彼此並無間隔。再加上,透過導光元件314與擴散板320的導引與擴散、以及混光距離336的設置,使得照明燈具300之出光的光場分布均勻。因此,由這些照明燈具300所拼接成之照明設備400可具有相當均勻的出光光場分布。In the lighting device 400, due to the expansion of each lighting fixture 300 The extent of the diffuser 320 completely covers the extent of the top panel 308, and the lighting fixture 300 has a borderless effect. Therefore, as shown in FIG. 4B, the diffusion plates 320 of the adjacent two illumination lamps 300 in the illumination device 400 can be joined to each other, and the adjacent diffusion plates 320 are not spaced apart from each other. In addition, through the guiding and diffusing of the light guiding element 314 and the diffusing plate 320, and the setting of the light mixing distance 336, the light field distribution of the light emitted by the lighting fixture 300 is uniform. Therefore, the lighting device 400 spliced by these lighting fixtures 300 can have a fairly uniform light distribution.
在本發明中,更可藉由設計導光元件與擴散板 之表面結構,來調整照明燈具的光場分布。請參照第5A圖,其係繪示依照本發明之另一實施方式的一種導光元件的立體圖。在此實施方式中,導光元件314a與導光元件314之結構大致相同,二者之差異主要在於導光元件314a上設有複數個表面微結構338a。這些表面微結構338a散布在導光元件314a之反射面340上。In the present invention, the light guiding element and the diffusion plate can be further designed. The surface structure is used to adjust the light field distribution of the lighting fixture. Please refer to FIG. 5A, which is a perspective view of a light guiding element according to another embodiment of the present invention. In this embodiment, the structure of the light guiding element 314a and the light guiding element 314 are substantially the same, and the difference between the two is mainly that the light guiding element 314a is provided with a plurality of surface microstructures 338a. These surface microstructures 338a are interspersed on the reflective surface 340 of the light guiding element 314a.
在一實施例中,如第5A圖所示,這些表面微結 構338a可包含弧型凸狀結構,例如圓弧型凸狀結構。在另一實施例中,這些表面微結構338a可包含錐型凸狀結構,例如角錐凸狀結構、或圓錐凸狀結構。In an embodiment, as shown in Figure 5A, these surface microjunctions The structure 338a may comprise an arcuate convex structure, such as a circular arc shaped convex structure. In another embodiment, the surface microstructures 338a can comprise a tapered convex structure, such as a pyramidal convex structure, or a conical convex structure.
此外,藉由改變這些表面微結構338a之結構,可調整照明燈具的光場分布。請同時參照第5A圖至第5E 圖,表面微結構338a之高度D與寬度W之間的比值為1.5%時,導光元件314a之出光的光場分布如第5B圖所示;表面微結構338a之高度D與寬度W之間的比值為5.0%時,導光元件314a之出光的光場分布如第5C圖所示;表面微結構338a之高度D與寬度W之間的比值為8.5%時,導光元件314a之出光的光場分布如第5D圖所示;而表面微結構338a之高度D與寬度W之間的比值為12.0%時,導光元件314a之出光的光場分布則如第5E圖所示。表面微結構338a之高度D與寬度W間之比值範圍介於1.5%~12.0%之間。從第5B圖至第5E圖可知,隨著表面微結構338a之高度D與寬度W間之比值的增加,導光元件314a之光場分布愈來愈集中。Moreover, by varying the structure of these surface microstructures 338a, the light field distribution of the lighting fixture can be adjusted. Please refer to 5A to 5E at the same time. For example, when the ratio of the height D to the width W of the surface microstructure 338a is 1.5%, the light field distribution of the light emitted from the light guiding element 314a is as shown in FIG. 5B; between the height D and the width W of the surface microstructure 338a. When the ratio is 5.0%, the light field distribution of the light emitted from the light guiding element 314a is as shown in FIG. 5C; when the ratio between the height D and the width W of the surface microstructure 338a is 8.5%, the light guiding element 314a emits light. The light field distribution is as shown in Fig. 5D; and when the ratio of the height D to the width W of the surface microstructure 338a is 12.0%, the light field distribution of the light emitted from the light guiding element 314a is as shown in Fig. 5E. The ratio of the height D to the width W of the surface microstructure 338a ranges from 1.5% to 12.0%. As can be seen from Fig. 5B to Fig. 5E, as the ratio of the height D to the width W of the surface microstructure 338a increases, the light field distribution of the light guiding element 314a becomes more concentrated.
請參照第6A圖,其係繪示依照本發明之又一實施方式的一種導光元件的立體圖。在本實施方式中,導光元件314b與導光元件314之結構大致相同,二者之差異主要在於導光元件314b上設有複數個表面微結構338b。這些表面微結構338b設置在導光元件314b之反射面340上。Please refer to FIG. 6A, which is a perspective view of a light guiding element according to still another embodiment of the present invention. In the present embodiment, the structure of the light guiding element 314b and the light guiding element 314 are substantially the same, and the difference between the two is mainly that the light guiding element 314b is provided with a plurality of surface microstructures 338b. These surface microstructures 338b are disposed on the reflective surface 340 of the light guiding element 314b.
在一實施例中,如第6A圖所示,這些表面微結構338b可包含V型切槽條狀結構,V型切槽條狀結構的稜線可平行於出光面318與入光面316相交的側邊。而且,這些表面微結構338b之條狀延伸方向垂直導光元件314b之入光面316之法線,且可縱貫反射面340。此外,這些表面微結構338b均具有頂角θ。In an embodiment, as shown in FIG. 6A, the surface microstructures 338b may include a V-shaped grooving strip structure, and the ridge lines of the V-shaped grooving strip structure may be parallel to the light-emitting surface 318 and the light-incident surface 316. Side. Moreover, the strip-like extending direction of the surface microstructures 338b is perpendicular to the normal to the light incident surface 316 of the light guiding element 314b, and can extend through the reflecting surface 340. Moreover, these surface microstructures 338b each have a vertex angle θ.
藉由改變這些表面微結構338b之結構,可調整照明燈具的光場分布。請同時參照第6A圖至第6C圖,表面 微結構338b之頂角θ的角度為θ 1時,導光元件314b之出光的光場分布如第6B圖所示;而表面微結構338b之頂角θ的角度為θ 2時,導光元件314b之出光的光場分布如第6C圖所示。其中,角度θ 1比θ 2大。根據第6B圖與第6C圖可知,隨著表面微結構338b之頂角θ的增加,導光元件314b之光場分布較為分散。By varying the structure of these surface microstructures 338b, the light field distribution of the lighting fixture can be adjusted. Please refer to the 6A to 6C drawings at the same time. When the angle θ of the apex angle θ of the microstructure 338b is θ 1 , the light field distribution of the light emitted from the light guiding element 314 b is as shown in FIG. 6B; and when the angle θ of the surface microstructure 338 b is θ 2 , the light guiding element The light field distribution of the light emitted by 314b is as shown in Fig. 6C. Among them, the angle θ 1 is larger than θ 2 . As can be seen from FIGS. 6B and 6C, as the apex angle θ of the surface microstructure 338b increases, the light field distribution of the light guiding element 314b is relatively dispersed.
在本發明之又一實施方式中,請再次參照第3 圖,根據照明燈具300之應用需求,擴散板320亦可包含複數個表面微結構(未繪示)。這些表面微結構可設置在擴散板320之表面322或表面324上,或者同時設置在此二表面322與324上,藉此改變照明燈具300之出光的光場分布。In still another embodiment of the present invention, please refer to the third The diffusion plate 320 may also include a plurality of surface microstructures (not shown) according to the application requirements of the lighting fixture 300. These surface microstructures can be disposed on surface 322 or surface 324 of diffuser plate 320, or both, on both surfaces 322 and 324, thereby altering the light field distribution of the light exiting illumination fixture 300.
由上述之實施方式可知,本發明之一優點就是 因為本發明之照明燈具與照明設備包含導光元件與擴散板,且導光元件與擴散板之間設有混光空間,因此可大幅提高照明燈具與照明設備的出光均勻度。It can be seen from the above embodiments that one of the advantages of the present invention is Because the lighting fixture and the illumination device of the present invention comprise a light guiding component and a diffusing plate, and a light mixing space is arranged between the light guiding component and the diffusing plate, the uniformity of light emission of the lighting fixture and the lighting device can be greatly improved.
由上述之實施方式可知,本發明之另一優點就 是因為本發明之照明燈具可藉由設計導光元件與擴散板之間的混光距離、以及導光元件的表面結構,來使照明燈具的出光達到無邊框效果。因此,多個照明燈具可無間隔的拼接,而獲得一均勻出光的大型照明設備,進而可有效提高照明燈具的應用性。It can be seen from the above embodiments that another advantage of the present invention is The lighting fixture of the present invention can achieve the borderless effect of the light emitted by the lighting fixture by designing the light mixing distance between the light guiding element and the diffusing plate and the surface structure of the light guiding element. Therefore, a plurality of lighting fixtures can be spliced without gaps, and a large illumination device with uniform light output can be obtained, thereby effectively improving the applicability of the lighting fixture.
由上述之實施方式可知,本發明之又一優點就是因為本發明可藉由設計導光元件與擴散板之表面結構、以 及導光元件與擴散板之間的混光距離,來設計照明燈具的光場分布,因此可增進照明燈具與照明設備的應用性。According to the above embodiments, another advantage of the present invention is that the present invention can be designed by designing the surface structure of the light guiding element and the diffusion plate. And the light mixing distance between the light guiding element and the diffusing plate to design the light field distribution of the lighting fixture, thereby improving the applicability of the lighting fixture and the lighting device.
雖然本發明已以實施例揭露如上,然其並非用以限定本發明,任何在此技術領域中具有通常知識者,在不脫離本發明之精神和範圍內,當可作各種之更動與潤飾,因此本發明之保護範圍當視後附之申請專利範圍所界定者為準。While the present invention has been described above by way of example, it is not intended to be construed as a limitation of the scope of the invention. Therefore, the scope of the invention is defined by the scope of the appended claims.
300‧‧‧照明燈具300‧‧‧Lighting fixtures
302‧‧‧背框302‧‧‧ Back frame
304‧‧‧底板304‧‧‧floor
306‧‧‧側板306‧‧‧ side panels
308‧‧‧頂板308‧‧‧ top board
310‧‧‧光源310‧‧‧Light source
312‧‧‧出光面312‧‧‧Glossy surface
314‧‧‧導光元件314‧‧‧Light guiding elements
316‧‧‧入光面316‧‧‧Into the glossy surface
318‧‧‧出光面318‧‧‧Glossy
320‧‧‧擴散板320‧‧‧Diffuser
322‧‧‧表面322‧‧‧ surface
324‧‧‧表面324‧‧‧ surface
326‧‧‧開孔326‧‧‧Opening
328‧‧‧邊緣328‧‧‧ edge
330‧‧‧外緣330‧‧‧ outer edge
332‧‧‧光332‧‧‧Light
334‧‧‧連結件334‧‧‧Links
336‧‧‧混光距離336‧‧‧Diffuse distance
340‧‧‧反射面340‧‧‧reflecting surface
342‧‧‧外緣342‧‧‧ outer edge
344‧‧‧開孔344‧‧‧Opening
346‧‧‧第一軸向346‧‧‧First axial
348‧‧‧第二軸向348‧‧‧second axial
α‧‧‧夾角‧‧‧‧ angle
Claims (12)
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TW104107041A TWI510743B (en) | 2012-04-13 | 2012-04-13 | Lighting fixture and lighting apparatus |
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TW201522863A TW201522863A (en) | 2015-06-16 |
TWI510743B true TWI510743B (en) | 2015-12-01 |
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TWI303739B (en) * | 2004-05-21 | 2008-12-01 | Sharp Kk | Backlight unit and liquid crystal display using the same |
TW200905316A (en) * | 2007-04-16 | 2009-02-01 | Gigno Technology Co Ltd | Light emitting module |
TW200935144A (en) * | 2007-12-20 | 2009-08-16 | 3M Innovative Properties Co | Backlight reflectors having a prismatic structure |
CN201436444U (en) * | 2009-04-03 | 2010-04-07 | 深圳市深华龙科技实业有限公司 | An illuminating LED area light source |
TW201037380A (en) * | 2009-04-15 | 2010-10-16 | Wintek Corp | Light guide structure and back light module using the same and display device using the same |
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TW201207452A (en) * | 2010-06-07 | 2012-02-16 | Ubright Optronics Corp | Light guide film |
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TWI303739B (en) * | 2004-05-21 | 2008-12-01 | Sharp Kk | Backlight unit and liquid crystal display using the same |
CN101075605B (en) * | 2006-05-15 | 2011-05-11 | 奇美电子股份有限公司 | Structure for packing light-emitting diodes, backlight module and liquid crystal display device thereof |
TW200905316A (en) * | 2007-04-16 | 2009-02-01 | Gigno Technology Co Ltd | Light emitting module |
TW200935144A (en) * | 2007-12-20 | 2009-08-16 | 3M Innovative Properties Co | Backlight reflectors having a prismatic structure |
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