TWI476352B - Lighting fixture - Google Patents

Description

Lighting fixture

The present invention relates to a lighting fixture, and more particularly to a multi-faceted lighting fixture.

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.

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.

However, in the case where the light emitted by the lighting fixture 100 has only one light field distribution, the lighting fixture 100 is greatly limited in application. In addition, the lampshade 102 of the lighting fixture 100 is a opaque metal cover or a plastic cover, so the lighting fixture 100 cannot provide multi-faceted light, which also limits the application of the lighting fixture 100.

Therefore, an aspect of the present invention is to provide a lighting fixture capable of illuminating the upper and lower sides of the entire frame by providing a light source and a light guiding member in at least one side of the frame. Make the application of lighting fixtures more diverse.

Another aspect of the present invention provides a lighting fixture that can adjust the ratio between the length and the thickness of the light guiding member, the structural shape of the light guiding member, the material of the light guiding member, or the light source module. The angle of the combination of the frame relative to the center line of the lighting fixture controls the light-emitting direction of the lighting fixture, the light-emitting ratio of the upper and lower sides, and the light distribution curve, thereby greatly improving the applicability of the lighting fixture.

According to the above object of the invention, a lighting fixture is proposed. The lighting fixture comprises a frame and at least one light source module. This frame contains a number of borders. At least one of the frames has an accommodation space and a light exit. The at least one light source module is disposed in the accommodating space. The at least one light source module includes a light guiding component and at least one light source. The light guiding component comprises a light emitting surface, and the light emitting surface and the light exit opening of the frame are located on the same side of the frame. The at least one light source is located beside one side of the light guiding element and emits light toward a side of the light guiding element.

According to an embodiment of the invention, the material of the at least one of the frames comprises a light transmissive material.

According to another embodiment of the present invention, at least one of the frames includes a U-shaped structure, and includes a second plate, and a first plate and a third plate joined to the opposite sides of the second plate. The at least one light source is interposed between the light guiding element and the first plate.

According to still another embodiment of the present invention, the at least one light source comprises a first light source and a second light source, the first light source is interposed between the light guiding element and the first plate, and the second light source is interposed between the light guiding elements A side is between the third plate.

In accordance with another embodiment of the present invention, at least one of the frames includes an integrally formed C-shaped structure, and the at least one light source is interposed between the light guiding element and the integrally formed C-shaped structure.

According to still another embodiment of the present invention, the center line of the at least one light source module and the combination of the frame of the light source module is parallel to the center line of the lighting fixture.

According to still another embodiment of the present invention, the center line of the combination of the at least one light source module and the frame on which the light source module is disposed has an angle with the center line of the lighting fixture, and the angle is greater than 0 degrees and less than 90 degrees.

According to still another embodiment of the present invention, the light guiding member is a flat plate or a wedge plate having a uniform thickness.

According to still another embodiment of the present invention, the material of the light guiding element comprises polycarbonate (Polycarbonate; PC) or polymethylmethacrylate (PMMA).

According to still another embodiment of the present invention, the shape of the frame is triangular, polygonal, circular, elliptical, star-shaped or heart-shaped.

2A and 2B are respectively a perspective view of a lighting fixture and a cross-sectional view taken along line AA' of FIG. 2A according to an embodiment of the present invention. In the present embodiment, the lighting fixture 200 mainly includes a frame 202 and one or more light source modules, such as the light source modules 222 and 228.

In the lighting fixture 200, the frame 202 includes a number of borders. In one embodiment, as shown in FIG. 2A, the frame 202 is quadrangular in shape, and thus the frame 202 has four frames 204, 206, 208, and 209. In other embodiments, the frame may have three or more borders, multiple curved borders, or irregularly shaped borders, depending on the actual application and taste design requirements. Therefore, the frame can be various shapes designed according to the use requirements such as a triangle, a polygon, a circle, an ellipse, a star, or a heart to enhance the diversity of the lighting fixture.

In the present embodiment, at least one of the frames 204, 206, 208, and 209 of the frame 202 is provided with a light source module. For example, as shown in FIG. 2B, the frames 204 and 208 on the opposite sides of the frame 202 are respectively provided with light source modules 228 and 222. However, in another embodiment, the frame may have only one frame provided with a light source module. In another embodiment, the second frame of the frame is provided with a light source module, and the two frames are located on two adjacent sides of the frame. In still another embodiment, each of the frames of the frame may be provided with a light source module.

The frame 204 has an accommodation space 254 and a light exit port 256. Similarly, the frame 208 also has an accommodation space 250 and a light exit opening 252. The light source module 228 is disposed in the accommodating space 254 of the frame 204, and the light source module 222 is disposed in the accommodating space 250 of the frame 208. In an embodiment, the material of the bezels 204 and 208 of the frame 202 may comprise a light transmissive material. Therefore, the light emitted by the light source modules 228 and 222 can also be emitted from the lighting fixture 200 via the bezels 204 and 208, respectively, to improve the light extraction efficiency of the lighting fixture 200. In another embodiment, all of the bezels 204, 206, 208, and 209 of the frame 202 can be comprised of a light transmissive material.

In an embodiment, the bezels 204 and 208 each comprise a U-shaped structure. As shown in FIG. 2B, the bezel 204 includes a first plate 216, a second plate 218, and a third plate 220. The first plate 216 and the third plate 220 are respectively joined to opposite sides of the second plate 218. Therefore, the first plate 216 and the third plate 220 are opposed to each other. Likewise, the bezel 208 includes a first panel 210, a second panel 212, and a third panel 214. The first plate 210 and the third plate 214 are respectively joined to opposite sides of the second plate 212. Therefore, the first plate 210 and the third plate 214 are opposed to each other.

In an embodiment, as shown in FIG. 2B, the light source module 228 includes a light source 230 and a light guiding element 232. The light source 230 and the light guiding element 232 are both located in the accommodating space 254 of the frame 204. The light guiding element 232 has a side surface 244 and a light emitting surface 260. The side surface 244 of the light guiding element 232 is adjacent to the light emitting surface 260 , and the light emitting surface 260 and the light exit opening 256 of the frame 204 are located on the same side of the frame 204 . The light source 230 is located beside the side 244 of the light guiding element 232 and between the first plate 216 of the frame 204 and the side 244 of the light guiding element 232. In one embodiment, the light exiting surface 242 of the light source 230 faces the side 244 of the light guiding element 232 to emit light toward the side 244 of the light guiding element 232. Light source 230 can, for example, comprise a light emitting diode (LED), a laser diode (LD), and a light tube.

Similarly, the light source module 222 includes a light source 224 and a light guiding element 226. The light source 224 and the light guiding element 226 are both located in the accommodating space 250 of the frame 208. The light guiding element 226 has a side surface 240 and a light emitting surface 258. The side surface 240 of the light guiding element 226 is adjacent to the light emitting surface 258, and the light emitting surface 258 and the light exiting opening 252 of the frame 208 are located on the same side of the frame 208. The light source 224 is located beside the side 240 of the light guiding element 226 and between the first plate 210 of the bezel 208 and the side 240 of the light guiding element 226. In one embodiment, the light exit surface 238 of the light source 224 faces the side 240 of the light directing element 226 to emit light toward the side 240 of the light directing element 226. Light source 224 can likewise comprise, for example, a light emitting diode, a laser diode and a light tube.

In another embodiment, the bezels 204 and 208 each comprise an integrally formed C-shaped structure. The light source 230 is interposed between the light guiding element 232 and the frame 204 of the integrally formed C-shaped structure, and the light source 224 is interposed. The light guiding element 226 is between the frame 208 of the integrally formed C-shaped structure.

In an embodiment, the centerline of the combination of the light source module 222 and the bezel 208 may be parallel to the centerline of the lighting fixture 200. Similarly, the centerline of the combination of the light source module 228 and the bezel 204 can be parallel to the centerline of the lighting fixture 200. In addition, light directing elements 226 and 232 can be flat plates of uniform thickness, as shown in FIG. 2B. In one embodiment, the material of light directing elements 226 and 232 can be polycarbonate. In another embodiment, the material of the light guiding elements 226 and 232 may be polymethyl methacrylate.

In the present invention, the light source module disposed in each frame of the frame may include a plurality of light sources. Please refer to FIG. 3, which is a cross-sectional view showing a lighting fixture according to another embodiment of the present invention. The structure of the lighting fixture 200a of the present embodiment is substantially the same as that of the lighting fixture 200 of the above embodiment, and the difference is that the light source modules 222a and 228a of the lighting fixture 200a respectively include two light sources 224 and 234, and the light source 230. With 236.

In the illuminating device 200a, the light source module 228a is disposed in the accommodating space 254 of the frame 204, and the light source module 222a is disposed in the accommodating space 250 of the frame 208. The light source module 228a includes light sources 230 and 236 and a light guiding element 232. The light sources 230 and 236 and the light guiding element 232 are both located in the accommodating space 254 of the frame 204. The light guiding element 232 has opposite side surfaces 244 and 268 and a light emitting surface 260. The side surfaces 244 and 268 of the light guiding element 232 are adjacent to the light emitting surface 260, and the light emitting surface 260 and the light exiting opening 256 of the frame 204 are located on the same side of the frame 204. The light source 230 is located beside the side 244 of the light guiding element 232 and between the first plate 216 of the frame 204 and the side 244 of the light guiding element 232. On the other hand, the light source 236 is located beside the other side 268 of the light guiding element 232 and between the third plate 220 of the bezel 204 and the side 268 of the light guiding element 232.

In one embodiment, the light exiting surface 242 of the light source 230 faces the side surface 244 of the light guiding component 232, and the light emitting surface 266 of the light source 236 faces the side surface 268 of the light guiding component 232 to respectively guide the light guiding component. Sides 244 and 268 of 232 emit light. Light sources 230 and 236 can each comprise, for example, a light emitting diode, a laser diode, and a light tube.

Similarly, the light source module 222a includes light sources 224 and 234 and a light guiding element 226. The light sources 224 and 234 and the light guiding element 226 are both located in the accommodating space 250 of the frame 208. The light guiding element 226 has opposite side faces 240 and 264 and a light exiting surface 258. The side surfaces 240 and 264 of the light guiding element 226 are adjacent to the light emitting surface 258, and the light emitting surface 258 and the light exiting opening 252 of the frame 208 are located on the same side of the frame 208. The light source 224 is located beside the side 240 of the light guiding element 226 and between the first plate 210 of the bezel 208 and the side 240 of the light guiding element 226. On the other hand, the light source 234 is located beside the other side 264 of the light guiding element 226 and between the third plate 214 of the bezel 208 and the side 264 of the light guiding element 226.

In one embodiment, the light exiting surface 238 of the light source 224 faces the side 240 of the light guiding element 226, and the light emitting surface 262 of the light source 234 faces the side surface 264 of the light guiding element 226 to respectively guide the light guiding element. Sides 240 and 264 of 226 emit light. Light sources 224 and 234 can each comprise, for example, a light emitting diode, a laser diode, and a light tube.

In the present invention, the light guiding elements of the light source module disposed in each frame of the frame may be a non-flat structure. Please refer to FIG. 4, which is a cross-sectional view showing a lighting fixture according to still another embodiment of the present invention. The structure of the lighting fixture 200b of the present embodiment is substantially the same as that of the lighting fixture 200 of the above embodiment, with the difference that the light guiding elements 226a and 232a of the lighting fixture 200b are not flat plates of uniform thickness.

In the lighting fixture 200b, the light guiding element 226a of the light source module 222b and the light guiding element 232a of the light source module 228b are both wedge-shaped plates. The light source 224 of the light source module 222b faces the side 240a having a larger area of the wedge-shaped light guiding element 226a. On the other hand, the light source 230 of the light source module 228b faces the side surface 244a having a larger area of the wedge-shaped light guiding element 232a. In addition, the light-emitting surface 258a of the wedge-shaped light guiding element 226a may be perpendicular to the side surface 240a and be located on the same side of the frame 208 as the light exit opening 252 of the frame 208. Similarly, the light-emitting surface 260a of the wedge-shaped light guiding element 232a may be perpendicular to the side surface 244a and be located on the same side of the frame 204 as the light exit opening 256 of the frame 204.

In addition, in the present invention, the center line of the combination of the light source module and the bezel may not be parallel to the center line of the lighting fixture, but may be inclined at an angle with respect to the center line of the lighting fixture. Please refer to FIG. 5, which is a schematic diagram of a device for lighting fixtures according to still another embodiment of the present invention. The architecture of the lighting fixture 200c of this embodiment is substantially the same as that of the lighting fixture 200 shown in FIG. 2B, the difference being the combination of the combination of the light source module 222 and the bezel 208, and the combination of the light source module 228 and the bezel 204. The line is not the centerline of the parallel lighting fixture 200c.

In the lighting fixture 200c, the centerline 248 of the combination of the light source module 222 and the bezel 208 and the centerline 246 of the lighting fixture 200c are not parallel to the lighting fixture 200, but have an included angle θ1. That is, the combination of the light source module 222 and the bezel 208 is inclined relative to the centerline 246 of the lighting fixture 200c. In addition, the centerline 274 of the combination of the light source module 228 and the bezel 204 may not be parallel to the centerline 246 of the lighting fixture 200c, but rather have an included angle θ2 between the two centerlines 274 and 246. That is, the combination of the light source module 228 and the bezel 204 is inclined relative to the centerline 246 of the lighting fixture 200c. In one embodiment, the angle θ1 between the center line 248 of the combination of the light source module 222 and the bezel 208 and the center line 246 of the lighting fixture 200c, and the center line 274 of the combination of the light source module 228 and the bezel 204 and the lighting fixture The angle θ2 between the centerlines 246 of 200c may be greater than 0 degrees and less than 90 degrees.

The centerline of the combination of the light source module 222 and the bezel 208 is inclined relative to the centerline 246 of the lighting fixture 200c and the centerline of the combination of the light source module 228 and the bezel 204 is inclined relative to the centerline 246 of the lighting fixture 200c. The same or different. In addition, in the lighting fixture 200c, only one combination of the combination of the light source module 222 and the bezel 208 and the combination of the light source module 228 and the bezel 204 is inclined with respect to the center line 246 of the lighting fixture 200c, and the center of the other combination The line is still parallel to the centerline of the lighting fixture 200c. In addition, the combination of the light source module 222 and the bezel 208, and the combination of the light source module 228 and the bezel 204 may also be inclined downward from the center line of the lighting fixture 200c.

In the present invention, by adjusting the ratio of the length to the thickness of the light guiding element, using light guiding elements of different refractive indices, using light guiding elements of different structural shapes, or adjusting the center line of the combination of the light source module and the bezel The angle of the center line of the lighting fixture is controlled to control the light exiting direction of the lighting fixture, the light-emitting ratio of each light-emitting side of the lighting fixture, and the light distribution curve of the lighting fixture.

For example, referring to FIG. 2B again, when the light guiding elements 226 and 232 are of a relatively elongated type, that is, the ratio of the length 270 of the light guiding element 226 to the thickness 272 is large, the light distribution curve of the light emitted by the lighting fixture 200 Also thinner. On the other hand, when the light guiding elements 226 and 232 belong to the fatter short type, that is, the ratio of the length 270 of the light guiding element 226 to the thickness 272 is small, the light distribution curve of the light emitted by the lighting fixture 200 is also rounded.

In addition, when the light guiding elements 226 and 232 are made of a material having a lower refractive index, such as polymethyl methacrylate, the light exiting from the light emitting surface 258 of the light guiding element 226 and the light emitting surface 260 of the light guiding element 232 may be lighter. oblique. On the other hand, when the light guiding elements 226 and 232 are made of a material having a large refractive index, such as polycarbonate, the angle between the light exiting surface 258 of the light guiding element 226 and the light emitting surface 260 of the light guiding element 232 is relatively straight. .

Referring to FIG. 4, when the structural shapes of the light guiding elements 226a and 232a are wedge-shaped, the light distribution curve of the light emitted by the illumination lamp 200b is relatively slender, and the light-emitting ratio is downward. Referring to FIG. 2B , when the structural shapes of the light guiding elements 226 and 232 are a flat plate structure having a uniform thickness, the light distribution curve of the light emitted by the illumination lamp 200 is thick and round, and the light output ratios of the upper and lower sides are relatively uniform.

In addition, please refer to FIG. 5, the angle θ1 between the center line 248 of the combination of the light source module 222 and the frame 208 and the center line 246 of the lighting fixture 200c, and the center line 274 of the combination of the light source module 228 and the frame 204. When the angle θ2 between the center line 246 of the lighting fixture 200c is large, the light distribution curve of the light emitted by the lighting fixture 200c is outwardly shifted. On the other hand, the angle θ1 between the center line 248 of the combination of the light source module 222 and the bezel 208 and the center line 246 of the lighting fixture 200c, and the center line 274 of the combination of the light source module 228 and the bezel 204 and the lighting fixture 200c When the angle θ2 between the center lines 246 is small, the light distribution curve of the light emitted by the illumination lamp 200c is moved inward.

Please refer to FIG. 6 , which is a light distribution graph of the lighting fixture 200 of FIG. 2B . When the light guiding elements 226 and 232 of the lighting fixture 200 are both flat plate structures of uniform thickness and are arranged straight, the luminous flux above the lighting fixture 200 is about 51%, and the luminous flux below is about 49%. It can be seen from this that, in this design, the ratio of the light output on the lower side of the lighting fixture 200 is uniform.

Referring to FIG. 5 and FIG. 7 , the combination of the light source module 222 and the frame 208 and the combination of the light source module 228 and the frame 204 are respectively tilted toward the outer side of the lighting fixture 200c, and the obtained lighting fixture 200c is matched. Light curve. With this device design, the luminous flux above the lighting fixture 200c is about 63%, while the lower luminous flux is about 37%. It can be seen from this that, in this design, the light-emitting ratio of the upper side of the lighting fixture 200c is higher than that of the lower side.

Referring to FIG. 5 and FIG. 8 , the combination of the light source module 222 and the frame 208 and the combination of the light source module 228 and the frame 204 are respectively tilted toward the interior of the lighting fixture 200c, and the obtained lighting fixture 200c is matched. Light curve. With this device design, the luminous flux above the lighting fixture 200c is about 43%, while the luminous flux below is about 57%. It can be seen from this that, in this design, the light-emitting ratio of the upper side of the lighting fixture 200c is lower than that of the lower side.

Please refer to FIG. 9 , which is a light distribution graph of the lighting fixture 200 b of FIG. 4 . When the light guiding elements 226a and 232a of the lighting fixture 200b are both wedge-shaped and are arranged straight, the luminous flux above the lighting fixture 200b is only about 29%, and the luminous flux below is about 71%. It can be seen from this that, under this design, the light output on the lower side of the lighting fixture 200b is significantly higher, and the light distribution curve is also elongated.

Referring to FIG. 10, the combination of the light source module 222b of FIG. 4 and the frame 208, and the combination of the light source module 228b and the frame 204 are respectively tilted toward the interior of the lighting fixture 200b, and the obtained lighting fixture 200b is provided. Light curve. With this device design, the luminous flux above the lighting fixture 200b is increased from the original straight setting of 29% to about 35%, while the lower luminous flux is reduced to about 65%. It can be seen from this that, in this design, although the light-emitting ratio on the lower side of the illumination lamp 200b is higher than that on the upper side, the ratio of the light output on the lower side is lower than that of the light-guiding elements 226a and 232a. In addition, the light distribution curve is expanded more than when the light guiding elements 226a and 232a are arranged straight.

It can be seen from the above embodiments that one advantage of the present invention is that the present invention can achieve the light emission from the upper and lower sides of the entire frame by providing the light source and the light guiding element in at least one side of the frame. Make the application of lighting fixtures more diverse.

It can be seen from the above embodiments that another advantage of the present invention is that the present invention can adjust the ratio between the length and the thickness of the light guiding element, the structural appearance of the light guiding element, the material of the light guiding element, or the light source mode. The center line of the combination of the group and the frame is inclined with respect to the center line of the lighting fixture to control the light-emitting direction of the lighting fixture, the light-emitting ratio of the upper and lower sides, and the light distribution curve. Therefore, the applicability of the lighting fixture can be greatly improved.

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.

100. . . Lighting fixture

102. . . lampshade

104. . . A reflective sheet

106. . . Lamp

108. . . Light

200. . . Lighting fixture

200a. . . Lighting fixture

200b. . . Lighting fixture

200c. . . Lighting fixture

202. . . frame

204. . . frame

206. . . frame

208. . . frame

209. . . frame

210. . . First board

212. . . Second board

214. . . Third board

216. . . First board

218. . . Second board

220. . . Third board

222. . . Light source module

222a. . . Light source module

222b. . . Light source module

224. . . light source

226. . . Light guiding element

226a. . . Light guiding element

228. . . Light source module

228a. . . Light source module

228b. . . Light source module

230. . . light source

232. . . Light guiding element

232a. . . Light guiding element

234. . . light source

236. . . light source

238. . . Glossy surface

240. . . side

240a. . . side

242. . . Glossy surface

244. . . side

244a. . . side

246. . . Center line

248. . . Center line

250. . . Housing space

252. . . Light exit

254. . . Housing space

256. . . Light exit

258. . . Glossy surface

258a. . . Glossy surface

260. . . Glossy surface

260a. . . Glossy surface

262. . . Glossy surface

264. . . side

266. . . Glossy surface

268. . . side

270. . . length

272. . . thickness

274. . . Center line

Θ1. . . Angle

Θ2. . . Angle

The above and other objects, features, advantages and embodiments of the present invention will become more apparent and understood.

Figure 1 is a schematic view of a conventional lighting fixture.

2A is a perspective view of a lighting fixture in accordance with an embodiment of the present invention.

Fig. 2B is a cross-sectional view taken along line AA' of Fig. 2A.

Figure 3 is a cross-sectional view showing a lighting fixture in accordance with another embodiment of the present invention.

4 is a cross-sectional view showing a lighting fixture in accordance with still another embodiment of the present invention.

FIG. 5 is a schematic view showing a device of a lighting fixture according to still another embodiment of the present invention.

Figure 6 is a graph showing the light distribution of a lighting fixture in accordance with an embodiment of the present invention.

Figure 7 is a graph showing the light distribution of a lighting fixture in accordance with another embodiment of the present invention.

8 is a light distribution graph of a lighting fixture according to still another embodiment of the present invention.

FIG. 9 is a light distribution diagram of a lighting fixture according to still another embodiment of the present invention.

FIG. 10 is a light distribution diagram of a lighting fixture according to still another embodiment of the present invention.

200. . . Lighting fixture

204. . . frame

208. . . frame

210. . . First board

212. . . Second board

214. . . Third board

216. . . First board

218. . . Second board

220. . . Third board

222. . . Light source module

224. . . light source

226. . . Light guiding element

228. . . Light source module

230. . . light source

232. . . Light guiding element

238. . . Glossy surface

240. . . side

242. . . Glossy surface

244. . . side

250. . . Housing space

252. . . Light exit

254. . . Housing space

256. . . Light exit

258. . . Glossy surface

260. . . Glossy surface

270. . . length

272. . . thickness

Claims (10)

A lighting fixture, comprising: a frame, comprising a plurality of frames, wherein at least one of the frames has an accommodating space and a light exiting port; and at least one light source module is disposed in the accommodating space, wherein the The at least one light source module includes: a light guiding component, wherein the light guiding component comprises a light emitting surface, and the light emitting surface and the light emitting opening are located on the same side of the at least one of the frames; and at least one light source is located at One side of the light guiding element is adjacent to the side surface and emits light toward the side surface of the at least one light guiding element. The lighting fixture of claim 1, wherein the material of the at least one of the frames comprises a light transmissive material. The lighting fixture of claim 1, wherein the at least one of the frames comprises a U-shaped structure, and comprises a second plate, and a first plate joined to one of the opposite sides of the second plate a third board, the at least one light source being interposed between the light guiding element and the first board. The lighting fixture of claim 3, wherein the at least one light source comprises a first light source and a second light source, the first light source is interposed between the light guiding element and the first plate, and the second light source is interposed Between the other side of the light guiding element and the third plate. The lighting fixture of claim 1, wherein the at least one of the frames comprises an integrally formed C-shaped structure, the at least one light source being interposed between the light guiding element and the integrally formed C-shaped structure between. The lighting fixture of claim 1, wherein a center line of the combination of the at least one light source module and the at least one of the frames is parallel to a centerline of the lighting fixture. The lighting fixture of claim 1, wherein a center line of the combination of the at least one light source module and the at least one of the frames has an angle with a center line of the lighting fixture, the angle being greater than 0 Degree is less than 90 degrees. The lighting fixture of claim 1, wherein the light guiding element is a flat plate or a wedge shaped plate having a uniform thickness. The lighting fixture of claim 1, wherein the material of the light guiding element comprises polycarbonate or polymethyl methacrylate. The lighting fixture of claim 1, wherein the frame has a shape of a triangle, a polygon, a circle, an ellipse, a star, or a heart.