CN201121840Y - Improved lighting device - Google Patents

Abstract

Another object of the present invention is to provide a light emitting device, which can guide the light emitted from the light source at one end and/or two ends of the light emitting device to the area to be illuminated uniformly, wherein the light source can be a light emitting diode. The light emitting device includes: the light guide device comprises a shell, a light source and a light guide device, wherein the shell is provided with at least one light incidence surface, at least one light emergence surface and at least one light guide surface arranged inside the shell; at least one luminous source adjacent to the light incidence surface; the plurality of light guide members are configured on the light guide surface. Therefore, when light is emitted from the light source at the tail end of the shell to the light guide surface in the shell through the light incident surface, the light guide part of the light guide surface guides the light to the light emergent surface through reflection and refraction, so that the region to be illuminated corresponding to the light emergent surface is uniformly illuminated. The light-emitting device can further comprise a light-reflecting component which is arranged on the shell and can coat the light guide surface, and the light-reflecting component can also comprise a diffusion component which is arranged on the light emitting surface, so that the area to be illuminated can obtain more uniform illumination or different areas of the area to be illuminated can obtain more substantially equal amount of light.

Description

Improved lighting device

【Technical field】

The utility model relates to a light emitting device, in particular to a light emitting device capable of refracting light emitted from a light source through its structure, so as to properly guide, reflect and/or diffuse the light.

【Background technique】

Known light-emitting devices generally include and pass through a light-guiding device in order to guide light to the area to be illuminated. However, according to the design of the light emitting device, it cannot be applied to most unspecific light sources, and most of them are designed or shaped to provide light guidance for a specific light source, but they still cannot effectively and uniformly guide the light from the light source. The emitted light is directed to defects in the area to be illuminated. For example, when the light of the light source itself is a light source type with relatively concentrated light sources, or when the area to be illuminated is wider and more uniform illumination is required, the design and configuration of the light guide device in the light-emitting device are very important and Helpful; therefore, it is desirable to achieve uniform illumination directly through or by utilizing the structure and design of the light emitting device without changing the type or quantity of the light source.

The light-guiding device of the light-emitting device that can guide the light emitted from the light-emitting source is usually arranged in a manner to surround or wrap around the light-emitting source. Therefore, these light-guiding devices usually need to match or match the shape, design or type of the light-emitting sources to achieve the purpose of guiding the light emitted by the light-emitting sources. When only a part of the light-emitting device, such as an end, is adjacent to an unspecified light source, it is hoped that the light-emitting device can still effectively transmit and guide the light emitted by the light source to the area to be illuminated, and Provide uniform illumination of the area to be illuminated.

Regarding the light source, conventional light sources include many different types, among which light emitting diodes (LEDs) have been widely used in different technical fields. Light-emitting diode is a kind of semiconductor component. Its light-emitting phenomenon does not belong to thermal light-emitting or discharge light-emitting, but belongs to cold light-emitting, and has a longer life than other traditional light-emitting sources. In addition, light emitting diodes are generally smaller than other conventional light emitting sources. Therefore, the use of light-emitting diodes has its advantages and limitations, such as the distance between it and the area to be illuminated may be relatively long. In order to achieve uniform and effective illumination, the light emitting device can be used or used to assist and guide the light emitted by the LED to the area to be illuminated. However, when the area to be illuminated is wider, more light emitting diodes will need to be used. As shown in FIG. 1 , the light source device 100 includes a light emitting substrate 110 and a plurality of light emitting diodes 120 distributed on the substrate 110 . For example, when the area to be illuminated P is a strip-shaped block, the LEDs 120 are distributed on the area to be illuminated in strips to provide light 122 to distribute to the area to be illuminated. However, although such a design can achieve lighting effects, it needs more light emitting diodes 120 , and its cost is higher and it is not easy to maintain. Therefore, it is desirable to provide a light emitting device configured to guide the light emitted by the LED to travel to a wider lighting area.

【Content of utility model】

An object of the present invention is to provide a light emitting device configured to effectively guide light emitted from a light source to an area to be illuminated.

Another object of the present invention is to provide a light emitting device configured to guide the light emitted by a light source disposed on one end and/or both ends of the light emitting device evenly to the area to be illuminated.

Another object of the present utility model is to provide a light-emitting device, which can use a light-emitting diode as its light source, and can effectively guide the light emitted by the light-emitting diode to travel to a wider lighting area, and the structure of the light-emitting device Conducive to its manufacture and maintenance.

According to one aspect of the present invention, a light emitting device is provided, which includes: a housing, which has at least one light incident surface, at least one light emitting surface, and at least one light guide surface provided inside the housing; At least one light emitting source adjacent to the light incident surface; the plurality of light guide elements arranged on the light guide surface; wherein, the light incident surface is adjacent to the end of the housing, when the light comes from the The end of the housing is incident on the light guide surface inside the housing, and the light will be guided to the light emitting surface through the light guide surface; and the light guide member of the light guide surface is configured to The light incident from the light incident surface is guided to be emitted from the light exit surface through reflection and refraction, so that the area to be illuminated relative to the light exit surface is uniformly illuminated, that is, even if the area to be illuminated Sub-regions of each receive substantially the same or equivalent amount of light.

In addition, in an embodiment of the aforementioned light-emitting device, the light-emitting device may further include at least one light-reflecting component disposed on the casing, and at least a portion of the light-reflecting component covers the light-guiding surface of the casing.

In yet another embodiment of the aforementioned light-emitting device, it may further include at least one diffusion component disposed on the housing, and at least part of the diffusion component covers the light emitting surface of the housing.

According to another aspect of the present utility model, a light emitting device is provided, which includes: a casing, which has at least one light incident surface, at least one light exit surface, and at least one light guide provided inside the casing. A surface; a plurality of light guide elements configured on one surface of the light guide surface; at least one light source adjacent to the light incident surface; at least one light reflection component, which at least partially covers the guide of the housing Light surface; wherein, the light incident surface is adjacent to the end of the housing, so that the light enters the light guide surface inside the housing from the end of the housing, and guides the light through the light guide surface lead to the light exit surface; the reflective component has a reflective surface to reflect the light from the light incident surface toward the light exit surface; and wherein the reflective component and the light guide can act simultaneously to pass reflection and refraction The light is emitted toward the light emitting surface, so that each sub-area of the area to be illuminated relative to the light emitting surface obtains substantially the same or equivalent amount of light.

In addition, in another implementation of the aforementioned light emitting device, the light emitting device may further include at least one diffusion component disposed on the casing, and at least part of the diffusion component covers the light emitting surface of the casing.

According to still another aspect of the present utility model, a light emitting device is provided, which includes: a casing, which has at least one light incident surface, at least one light exit surface, and at least one guide provided inside the casing. Light surface; a plurality of light guide elements configured on one surface of the light guide surface; at least one light source adjacent to the light incident surface; at least one light reflection component, which at least partially covers the shell Light guide surface; at least one diffusion component, at least partly covering the light exit surface of the casing; wherein, the light entry surface is adjacent to the end of the casing, so that the light enters the device from the end of the casing on the light guide surface inside the housing, and guide the light to the light exit surface through the light guide surface; the reflective component has a reflective surface to reflect the light from the light entrance surface toward the light exit surface and wherein the reflective component and the light guide can act at the same time to emit light toward the light exit surface through reflection and refraction; the diffusion component covering the light exit surface can further direct the light exit surface of the housing The emitted light is diffused so that each sub-area of the area to be illuminated relative to the light emitting surface obtains substantially the same or equal amount of light.

In addition, as the light guide member of the embodiment of the aforementioned light-emitting device, in an embodiment of the light guide assembly, the light guide member protrudes outward toward the inside of the housing and the outside of the light guide surface . In yet another embodiment, the light guide member and the light guide surface of the housing can be integrally formed. In other embodiments, the number of the light guide elements disposed on the light guide surface gradually increases from near to far from the light incident surface. Specifically, an embodiment of the light guide member may be protrusions spaced apart from each other, and the protrusions may be disposed on the light guide surface in a manner parallel to each other. In another embodiment of the light guide, the light guides are dot-shaped protrusions spaced apart from each other; further, the number of the dot-like protrusions can be regularly changed from the distance between the light guides to the The distance of light incident on the surface gradually increases from near to far.

As in the aforementioned embodiment of the light emitting device, in an embodiment of the light incident surface of the casing, it is disposed adjacent to at least one light emitting source. And in an embodiment of the light emitting source, it is a light emitting diode.

【Description of drawings】

Fig. 1 shows a schematic side view of a known light source device.

Fig. 2A is a perspective view of the first embodiment of the light emitting device of the present invention.

Fig. 2B is a perspective view of another embodiment of the light emitting device of the present invention.

Fig. 2C is a side view of the first embodiment of the light emitting device of the present invention.

FIG. 2D is a partially enlarged side view of the light emitting device shown in FIG. 2C .

Fig. 3 is a side view of the first embodiment of the light emitting device of the present invention.

FIG. 4A is a perspective view of an embodiment of the light guide member of the light emitting device of the present invention.

Fig. 4B is a perspective view of another embodiment of the light guide member of the light emitting device of the present invention.

FIG. 4C is a perspective view of another embodiment of the light guide member of the light emitting device of the present invention.

FIG. 4D is a perspective view of another embodiment of the light guide member of the light emitting device of the present invention.

FIG. 4E is a perspective view of still another embodiment of the light guide member of the light emitting device of the present invention.

FIG. 4F is a perspective view of yet another embodiment of the light guide member of the light emitting device of the present invention.

FIG. 4G is a perspective view of still another embodiment of the light guide member of the light emitting device of the present invention.

Fig. 5A is a schematic side view of the second embodiment of the light emitting device of the present invention.

Fig. 5B is a schematic side view of another embodiment of the light emitting device of the present invention.

Fig. 6A is a front view of the second embodiment of the light emitting device of the present invention.

Fig. 6B is a front view of another embodiment of the light emitting device of the present invention.

Fig. 7A is a schematic side view of the third embodiment of the light emitting device of the present invention.

Fig. 7B is a schematic side view of another embodiment of the light emitting device of the present invention.

Fig. 8A is a front view of the third embodiment of the light emitting device of the present invention.

Fig. 8B is a front side view of another embodiment of the light emitting device of the present invention.

[Description of main component symbols]

100 Light source device

110 Substrate

120 surface

122 rays

200, 200' Lighting device

210, 210' Shell

212, 212' light incident surface

216, 216' light exit surface

218, 218' light guide surface

218A~218G Light guide surface

220, 220' light guide

220A～220D Light guide/convex

220E～220G Light guide/dot

226, 226' end

228, 228' end

300, 300' Lighting device

310, 310' Shell

312, 312' light incident surface

316, 316' light exit surface

318, 318' light guide surface

330, 330' light source

340 light source

360, 360' reflective components

360A, 360B reflective components

362, 362' reflective surface

400, 400' Lighting device

410, 410' shell

412, 412' light incident surface

416, 416' light exit surface

418, 418' light guide surface

430, 430' light source

440 light source

460, 460' reflective components

460A, 460B reflective components

462, 462' reflective surface

480, 480' Diffusion Assembly

482, 482' diffusion surface

D, D' length

W, W' width

H Height

P Desired to illuminate the area

【Detailed ways】

The utility model provides a light-emitting device, which can effectively guide light to an area to be illuminated and provide uniform illumination to the area to be illuminated. The following will provide a detailed description of the utility model, and at the same time illustrate it in the form of an embodiment. However, it can be understood that the described embodiments are preferred embodiments of the present utility model, and are intended to make those skilled in the art understand the technical features and effects of the present utility model; so the scope of the present utility model covers all In addition to the above-mentioned embodiments, variations or embodiments of these embodiments are also covered; any variation embodiments do not violate the scope of the present utility model.

2A-2D show a perspective view and a side view of an embodiment of the light emitting device of the present invention. 2A is a schematic perspective view of an embodiment of a light emitting device 200, the light emitting device 200 includes a casing 210, the casing 210 has a light incident surface 212, a light exit surface 216 and guides inside the casing. Glossy 218. The light emitting device 200 includes a plurality of light guide elements 220 disposed on a surface of the light guide surface 218 . Therefore, when the light source (not shown) adjacent to the light incident surfaces 212 injects the light into the housing 210 through the light incident surfaces 212, the light will freely and freely flow in the housing. The interior of 210 travels onto light guiding surface 218 . The light projected on the light guiding surface 218 is guided by the light guiding element 220 on the light guiding surface 218 and then emitted from the light emitting surface 216 . That is, the light guide member 220 of the light guide surface 218 is configured to guide the light incident from the light incident surface 212 through reflection and refraction to exit from the light exit surface 216, so that the The area to be illuminated on the light emitting surface 216 is uniformly illuminated; in other words, each sub-area on the area to be illuminated can obtain substantially the same amount of illumination or light.

Fig. 2B is a schematic perspective view of another embodiment of the light emitting device 200' of the present invention. Compared with the light-emitting device 200 shown in FIG. 2A , wherein the light-guiding surface 218 is roughly in the shape of a long rectangle, and has a width W and a length D; The light surface 218' is also roughly a long rectangle with a width W' and a length D'; however, the width W' of the light guide surface 218' is larger than the width W of the light guide surface 218, and its length D' is shorter than the length D . Such differences are mainly due to the size and distribution of the areas to be illuminated on the light emitting surfaces 216, 216' relative to the light guide surfaces 218, 218'. For example, the illuminated area of the embodiment 200 of the light emitting device is narrower and longer than that of the embodiment 200' of the light emitting device; therefore, it has a narrower and longer light guiding surface. However, it can be understood that the light-emitting devices 200, 200' with any length D, D' and width W, W' of the light-guiding surface 218, 218' are possible, and all belong to the scope of the present invention. It must be noted that, in the embodiment of the light-emitting device 200' shown in FIG. 2B, the density of the light-guiding elements 220' is greater at a place farther away from the light-incident surface 212', in order to obtain a relatively uniform light brightness on the light-emitting surface 216'. . In addition, it can be understood that although the embodiments 200 and 200' of the utility model shown in Figures 2A to 2D are long rectangular cylinders, other shapes or shapes are all possible variations; for example In other words, the shells 210, 210' can be in the shape of a cylinder, a semi-cylindrical body, a triangular prism, a regular or irregular curved shape, all of which are possible embodiments. Similarly, the sizes and lengths of these shapes and embodiments can be further adjusted according to the needs of the area to be illuminated, and will not be repeated here.

2C and 2D are side views of embodiments of the light-emitting device shown in FIG. 2A or 2B. In one embodiment of the light-emitting device 200 of the present invention, a plurality of light guide elements 220 disposed on the light guide surface 218 of the housing 210 face toward the inside of the housing 210 and the outside of the light guide surface 218. Protruding outward, as shown in Figure 2C and 2D; Figure 2D is a partially enlarged view of Figure 2C.

As shown in FIGS. 2A-2D , in an embodiment, the light guide elements 220 are integrally formed with the light guide surface 218 of the casing 210 . That is, during the manufacturing or forming process of the housing 210 , the light guide surface 218 of the housing 210 can be integrally formed by plastic mold injection molding or composite material thermoforming. Wherein the housing 210 and the light guide surface 218 and/or the light guide member 220 can be made of heat-resistant and hard thermoplastic or thermosetting plastics (such as ABS, PP, PMMA, etc.), composite materials, metal or a combination thereof. . In one embodiment, the housing 210, the light guide surface 218, and the light guide member 220 are all made of heat-resistant and hard thermoplastic or thermosetting plastic material or composite material, and are injection molded by a plastic mold or hot-pressed by the composite material. Molding manufacturing method and one-piece molding. Therefore, the light-emitting device 200 can be resistant to high temperature and not easily deformed by external force, and its overall manufacturing process and cost are relatively simple and low. Therefore, when the light emitting source (not shown in the figure) is a traditional light bulb that emits light and heats up, the light emitting device 200 can transmit light appropriately and with high stability. And when the light emitting source is a light emitting diode, such as the aforementioned light emitting diode does not belong to thermal light emission or discharge light emission, but belongs to cold light emission; therefore, the above materials and other plastic materials are also suitable materials, making the utility model The light emitting device 200 effectively and properly transmits the light of the light emitting diode (not shown).

Furthermore, as shown in FIGS. 2A-2D , in an embodiment of the light-emitting device 200 of the present invention, the number of the light-guiding elements 220 arranged on the light-guiding surface 218 can be determined according to the distance between them and the incident light. The distance between the surfaces 212 gradually increases from near to far. For example, please refer to FIG. 2A again. In an embodiment of the light emitting device 200, the two ends 226, 228 of the light emitting device 200 are each provided with at least one light source (not shown); The number of light guide elements 220 at 226 and 228 is larger and denser. In one embodiment, the light emitting device 200 is provided with a light source at its two ends 226 and 228, so the light enters the interior of the light emitting device 200 from the light incident surface 212 at both ends, and travels to the light guide surface 218. The light is transmitted to the light exit surface 216 through the light guides 220 through reflection and refraction to exit the housing 210; therefore, in order to make the light pass through the light guides 220 to the light exit surface 216 substantially uniformly, then The number of light guide elements 220 that are farther away from the light emitting sources on the two ends or the light incident surfaces will gradually increase through configuration. Therefore, in the aforementioned embodiment of the light-emitting device 200, 200' as shown in FIG. The number of light guides 220 near the two ends 226, 226' and 228, 228'. Such a structure can simultaneously increase the reflection and/or refraction of the light and transmit it to the light exiting surface 216 by adding the light guide 220 , so as to achieve substantially uniform illumination. Please refer to FIGS. 2C and 2D again. Similarly, the height H of the light guide 220 can also be adjusted to increase the reflection and/or refraction of light and then transmit it to the light exit surface 216 to achieve substantially uniform illumination.

As shown in FIG. 3 , a side view of an embodiment of a light emitting device 200 of the present invention is shown. When the light sources 230 and 240 respectively adjacent to the two ends 226 and 228 of the light emitting device 200 inject light rays 232 and 242 into the light emitting device 200 , the light rays 232 and 242 will travel freely through the light incident surface 212 to its interior. The light that reaches the light guide surface 218 inside the light emitting device 200 will be further reflected and/or refracted by the light guide member 220 disposed on the light guide surface 218, and then exit toward the light emitting surface 216 to provide uniform illumination to the desired location. lighting area. In another embodiment of the light emitting device 200 of the present invention, it only uses the light source 230 or 240 on one end 226 or 228 to provide light 232 or 242 to the inside of the light emitting device 200, so that the light passes through the The reflection and/or refraction of the light guide member 220 on the light guide surface 218 is emitted toward the light emitting surface 216 .

The light guide 220 in an embodiment of the light emitting device 200 may have different shapes or embodiments, including microstructures, linear strips, dots, and the like. Please refer to FIGS. 4A-4G , which list and disclose possible shapes or embodiments of the light guide 220 or 220' in the light guide 200. Referring to FIG. 4A-4D as shown in the embodiment of the light-guiding elements 220A-220D, wherein the light-guiding elements 220A are protrusions spaced apart from each other, and the protrusions are arranged on the light-guiding surface in a manner parallel to each other. on 218A. Wherein the protrusion of the light guide 220A shown in Figure 4A is approximately a right triangle; the protrusion of the light guide 220B shown in Figure 4B is approximately rectangular; the protrusion of the light guide 220C shown in Figure 4C The protruding part of the light guide 220D shown in FIG. 4D is roughly a triangular shape. It is understood that other configurations are possible; the embodiments presented here are preferred embodiments. In addition, as mentioned above, the embodiments of the light guide elements 220A- 220D can be arranged so as to be spaced apart from each other on the light-guiding surfaces 218A- 218D from sparse to dense or dense to sparse. Furthermore, please refer to FIGS. 4E˜4G . As mentioned above, possible embodiments of the light guide 220 include microstructures, dot-shaped protrusions or dots; FIGS. . The embodiment 220E of the light guide member as shown in FIG. 4E is in the form of network dots that are neatly arranged adjacent to each other in the horizontal direction, and each row is arranged on the light guide surface 218E in parallel with each other, and the distance between the rows can also be adjusted. sparse to dense or dense to sparse arrangement; the light guide 220F shown in FIG. Dense or dense to sparse arrangement, the distance between each network point can also be adjusted to arrange from sparse to dense or dense to sparse; in addition, the embodiment of light guide 220G as shown in Figure 4G, which discloses the design The substantially circular dots on the light guiding surface 218G are arranged on the light guiding surface 218G more irregularly or freely; all of the above are possible or preferred embodiments of the light guiding element.

5A and 5B show another embodiment of the light emitting device 300, 300' of the present invention. In this embodiment, the main difference, but not the only difference, between the light emitting device 300, 300' and the previous embodiment is that the light emitting device 300 further includes a reflective component 360, 360'. That is, the foregoing embodiments may also include a reflective element. As shown, the reflective elements 360, 360' are preferably attached to or engaged within the housing 310, 310'. Joining methods include bonding, fastening, locking, and hot-melting; but not limited to these methods. The reflective component 360, 360' has a reflective surface 362, 362', which faces the inside of the housing 310, 310', to assist the light from the light source 330, 340 or 330' to pass through the light incident surface 312 or 312'. The light is reflected toward the light exit surface 316 or 316'; and, wherein the reflective components 360, 360' and the light guides 318, 318' can simultaneously emit light toward the light exit surface 316 or 316' through reflection and refraction, Therefore, the area to be illuminated relative to the light emitting surface 316 or 316' can be uniformly illuminated. Moreover, the difference between an embodiment of the light emitting device 300 shown in FIG. 5A and the light emitting device 300' shown in FIG. 'Only one end is provided with a light source 300', its related structure and technical features have been explained in the foregoing embodiments, and those skilled in the art can fully understand it, so it is not repeated here. It is within the scope of the present invention to install light sources at one or both ends of the light emitting device.

6A and 6B disclose different embodiments of the aforementioned reflective element 360 . As shown in the figure, it is preferable that the reflective components 360A, 360B at least partially cover the light guide surface 318 of the casing 310; therefore, the light reflection effect can be used to reflect the light traveling inside the casing 310 until the light is emitted. The surface 316 is projected toward the outside of the housing 310 . The material of the reflective components 360A, 360B can be general mirror, metal material or any component made of polished or reflective material.

7A and 7B show another embodiment of the light emitting device 400, 400' of the present invention. In this embodiment, the main difference, but not the only difference, between the light emitting device 400 and 400' compared with the previous embodiments is that the light emitting device 400 further includes reflective components 460 and 460' having reflective surfaces 462 and 462' In addition, it also includes diffusion components 480, 480' disposed on the housings 410, 410', and at least part of the diffusion components 480, 480' covers the light emitting surfaces 416, 416' of the housings 410, 410' . That is, compared with the foregoing embodiments, the diffusion components 480, 480' can be further bonded to the housing 410, 410' and at least partially cover the light emitting surfaces 416, 416'. The joining methods include bonding, fastening, locking, and hot-melting; but not limited to these methods. The diffusion assembly 480, 480' has a light diffusion surface 482, 482' to further diffuse the light from its system facing the housing 410, 410' through the light exit surface 416 or 416' to the outside and project it to the desired lighting area. Similarly, the difference between an embodiment of the light emitting device 400 shown in FIG. 6B and the light emitting device 400' shown in FIG. Only one end of the light emitting device 400 ′ is provided with a light source 400 ′. The relevant structure and technical features have been explained in the foregoing embodiments and are fully understood by those skilled in the art, so they are not repeated here.

Similarly, FIGS. 8A and 8B mainly disclose different embodiments of a light emitting device including reflective elements 460A, 460B and a diffuser element 480 . As shown in the figure, it is preferable that the reflective components 460A, 460B at least partially cover the light guide surface 418 of the casing 410; therefore, the light reflection effect can be used to reflect the light traveling inside the casing 410 to the light emitting surface 416 and shoot out toward the housing 410. Moreover, the diffusion component 480 can further diffuse the light from the light emitting surface 416 to the area to be illuminated, so as to provide more uniform illumination. The diffusion component 480 can be made of plastic, and is preferably a translucent material.

The above description is based on multiple different embodiments of the present invention, wherein each feature can be implemented singly or in different combinations. Therefore, the disclosure of the embodiments of the utility model is a specific example to illustrate the principles of the utility model, and the utility model should not be limited to the disclosed examples. Furthermore, the foregoing descriptions and accompanying drawings are only for demonstration purposes of the present utility model, and are not limited thereto. Changes or combinations of other components are possible without departing from the spirit and scope of the present invention.

Claims (27)

1. A lighting device comprising: A casing, which has at least one light incident surface, at least one light exit surface and at least one light guide surface provided inside the casing; a plurality of light guide elements configured on one surface of the light guide surface; at least one light emitting source adjacent to the light entrance surface; and It is characterized in that the light incident surface is adjacent to the end of the housing, so that the light is incident from the end of the housing to the light guide surface inside the housing, and the light is guided through the light guide surface to the light exiting surface; wherein the light guiding member of the light guiding surface is configured to guide the light entering from the light incident surface through reflection and refraction to exit from the light exiting surface, so that the Each division of the area to be illuminated on the light emitting surface can adjust its required illumination uniformity or non-uniformity to meet design requirements. 2. The light emitting device according to claim 1, wherein the light guide member protrudes outward toward the inside of the casing and the outside of the light guide surface. 3. The light emitting device according to claim 1, wherein the light guide member is integrally formed with the light guide surface of the housing. 4. The light-emitting device according to claim 1, wherein the number of the light-guiding elements disposed on the light-guiding surface gradually increases or varies from near to far from the light incident surface Tapering or random distribution from near to far will depend on design requirements. 5. The light emitting device according to claim 1, wherein the light guides are protruding parts spaced apart from each other, and the protruding parts are arranged on the light guiding surface in a manner parallel to each other. 6. The light emitting device according to claim 1, wherein the light guides are dot-shaped protrusions spaced apart from each other. 7. The light-emitting device according to claim 6, wherein the number of the dot-shaped protrusions gradually increases gradually from the distance from the light incident surface to the farthest. 8. The light emitting device according to claim 1, wherein the light source is a light emitting diode. 9. The light emitting device according to claim 1, further comprising at least one reflective component disposed on the housing, at least part of the reflective component covers the light guide surface of the housing. 10. The light emitting device according to claim 9, further comprising at least one diffusion component disposed on the casing, at least part of the diffusion component covers the light emitting surface of the casing. 11. A lighting device comprising: A casing, which has at least one light incident surface, at least one light exit surface and at least one light guide surface provided inside the casing; a plurality of light guide elements configured on one surface of the light guide surface; at least one light emitting source adjacent to the light incident surface; at least one reflective element at least partially covering the light-guiding surface of the housing; and It is characterized in that the light incident surface is adjacent to the end of the housing, so that the light is incident from the end of the housing to the light guide surface inside the housing, and the light is guided through the light guide surface to the light exit surface; the reflective component has a reflective surface to reflect the light from the light incident surface toward the light exit surface; and wherein the reflective component and the light guide can act simultaneously to reflect The light is emitted toward the light emitting surface, so that the required illumination uniformity or non-uniformity of the area to be illuminated relative to the light emitting surface can be adjusted to meet design requirements. 12. The light emitting device according to claim 11, wherein the light guide member protrudes outward toward the inside of the casing and the outside of the light guide surface. 13. The light emitting device according to claim 11, wherein the light guide member is integrally formed with the light guide surface of the housing. 14. The light-emitting device according to claim 11, wherein the number of the light-guiding elements disposed on the light-guiding surface gradually increases or varies from near to far from the light incident surface Tapering or random distribution from near to far will depend on design requirements. 15. The light-emitting device according to claim 11, wherein the light guides are protruding parts spaced apart from each other, and the protruding parts are arranged on the light guiding surface in a manner parallel to each other. 16. The light emitting device according to claim 11, wherein the light guides are dot-shaped protrusions spaced apart from each other. 17. The light emitting device according to claim 16, characterized in that, the number of the dot-shaped protrusions gradually increases from near to far away from the light incident surface with regularity. 18. The light emitting device according to claim 19, wherein the light source is a light emitting diode. 19. The light emitting device according to claim 11, further comprising at least one diffusion component disposed on the housing, at least part of the diffusion component covers the light emitting surface of the housing. 20. A light emitting device comprising: A casing, which has at least one light incident surface, at least one light exit surface and at least one light guide surface provided inside the casing; a plurality of light guide elements configured on one surface of the light guide surface; at least one light emitting source adjacent to the light incident surface; At least one reflective component at least partially covers the light guide surface of the casing; at least one diffuser element at least partially covering the light exit surface of the housing; and It is characterized in that the light incident surface is adjacent to the end of the housing, so that the light enters the light guide surface provided inside the housing from the end of the housing, and guides the light through the light guide surface. lead to the light exit surface; the reflective component has a reflective surface to reflect the light from the light incident surface toward the light exit surface; and wherein the reflective component and the light guide can act simultaneously to pass reflection and refraction The light is emitted toward the light-emitting surface; the diffusion component covering the light-emitting surface can further diffuse the light emitted from the light-emitting surface of the housing, so that the area to be illuminated relative to the light-emitting surface can be adjusted. The required lighting uniformity or non-uniformity to meet the design requirements. 21. The light emitting device according to claim 20, wherein the light guide member protrudes outward toward the inside of the casing and the outside of the light guide surface. 22. The light emitting device according to claim 20, wherein the light guide member is integrally formed with the light guide surface of the housing. 23. The light emitting device according to claim 20, wherein the number of the light guide elements disposed on the light guide surface gradually increases from near to far from the light incident surface. 24. The light-emitting device according to claim 20, wherein the light guides are protrusions spaced apart from each other, and the protrusions are arranged on the light guide surface in a manner parallel to each other. 25. The light emitting device according to claim 20, wherein the light guides are dot-shaped protrusions spaced apart from each other. 26. The light-emitting device according to claim 25, wherein the number of the dot-shaped protrusions is regularly increased from near to far from the light incident surface or from near to Far and tapering or random distribution will depend on design requirements. 27. The light emitting device according to claim 20, wherein the light source is a light emitting diode.

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