TWI624962B - Illuminating device - Google Patents

Abstract

The invention relates to a lighting device comprising at least one reflecting shell, at least one lighting module and a reflecting member. The reflective shell has a casing and an arc surface, the arc surface is located in the casing, and the light emitting module is located under the reflector shell. The light emitting module has a light guide plate and at least one light emitting component, and the light emitting component is located at one side of the light guide plate, and the light guide plate has a plate body and a perforation, the perforation corresponding to one of the notches of the arc surface and located in the plate body, the reflection member is located under the illumination module, the reflection member has a body and a light exit hole, and the light exit hole is correspondingly perforated, and is located on the body. After the light of the light-emitting module is irradiated to the reflective shell, the light reflects the light-emitting hole of the reflector to perform illumination. The light intensity of the light-emitting device is reduced, and the influence of glare on the human body can be avoided.

Description

Illuminating device

The present invention relates to a light-emitting device, and more particularly to a light-emitting device comprising a light guide plate structure, a reflective shell structure and a reflector structure.

The advancement of science and technology has brought great convenience to life. In particular, the development and improvement of lighting technology has brought more brilliance changes to life. In recent years, the emergence of light-emitting diodes has produced great progress in lighting technology. Light Emitting Diode (LED), which is a semiconductor component. It is often used as an indicator light, a display panel, etc. at the beginning; it is also used as illumination with the appearance of a white light emitting diode. It is a new type of light source in the 21st century. It has the advantages of high efficiency, long life, and is not easily damaged. When a forward voltage is applied, the light-emitting diode emits a single-color, discontinuous light, which is one of the electroluminescence effects. By changing the chemical composition of the semiconductor material used, the light-emitting diode can emit light in the near ultraviolet, visible or infrared light.

As described above, the characteristic of the light-emitting diode is a linear light-emitting mode. If a light-emitting diode is used as a lighting tool, it needs to be matched with an optical lens or an optical microstructure to make the linear light of the light-emitting diode receive Change the effect of producing diffuse illumination. The optical lens or optical microstructure may be an optical structure such as total reflection, semi-reflection, refraction or scattering. In general, the light-emitting application structure of the light-emitting diode can be divided into a side-light type light-emitting structure and a direct-type light-emitting structure, and at present, most of the side-light type light-emitting structures are mainly used.

In the prior art, the light-emitting path of the edge-lit backlight module can be roughly divided into two types. The first light-emitting path is that the light emitted by the light-emitting diode passes through the light guide plate and is directly emitted to the light-emitting surface; The path is that the light emitted by the light-emitting diode passes through the light guide plate, and the light is irradiated on the reflective casing, and the light is again reflected by the reflective shell, is again irradiated to the light guide plate, and finally is emitted through the light guide plate to the light-emitting surface. If the light is irradiated in this way, most of the light of the light emitting diode will directly pass through the light guide plate to emit light. Such a light-emitting diode directly emits light with a strong intensity, and if light is directed at the human eye, it causes glare.

The invention is directed to improving the shortcomings of the prior art, and provides a light-emitting device, wherein the light emitted by the light is mostly reflected by one reflection, so that the light intensity is weaker than the light directly emitted, and the eye is not damaged. The risk exists.

It is an object of the present invention to provide a light-emitting device capable of reducing the intensity of light while preventing light from entering the eye and causing glare.

An object of the present invention is to provide a light-emitting device that can reduce the number of light-emitting diodes disposed on the peripheral side of the light guide plate by the design of the light guide plate, thereby achieving the illumination effect of the same brightness.

The present invention provides a light-emitting device comprising at least one reflective shell, at least one light-emitting module and at least one reflective member, the at least one reflective shell having a casing and an arc-face portion, the arc-face portion being located in the casing. The at least one light emitting module is disposed under the at least one reflective shell, the at least one light emitting module has a light guide plate and at least one light emitting component, the at least one light emitting component is located on one side of the light guide plate, and the light guide plate has a plate body And a perforation corresponding to a notch of the arc surface and located in the plate body, the diameter of the perforation being smaller than the diameter of the notch. And the at least one reflective member is located under the at least one light-emitting module, and the at least one reflective member has a body and a light-emitting hole, and the light-emitting hole is opposite to the body.

An embodiment of the present invention discloses that the diameter of the through hole is smaller than the diameter of the notch.

An embodiment of the present invention discloses that the diameter of the through hole is smaller than the diameter of the light exit hole.

An embodiment of the present invention is to disclose that the at least one reflective shell and the surface of the at least one reflective member facing the light guide plate are reflective structures.

According to an embodiment of the present invention, the at least one reflective cover further includes a casing wall surrounding the periphery of the casing to form a receiving groove, and the light guiding plate is located in the receiving groove.

According to an embodiment of the present invention, the board further includes: a ring portion; a plurality of light guiding portions, wherein the ring portion is disposed on the ring portion, the light guiding portion is a V-shaped structure, and the two ends of the V-shaped structure are connected In the ring portion, the at least one light emitting element is disposed at a tip end of the V-shaped structure.

According to an embodiment of the present invention, the board further includes: a ring portion; a plurality of light guiding portions, wherein the ring portion is disposed on the ring portion, the light guiding portion is a lobe structure, and the lobe structure is formed by the ring An arc side and a straight side are extended on the outer side of the portion, and the arc side is connected to the straight side, and the at least one light emitting element is disposed on the straight side.

An embodiment of the present invention further includes a light shielding member disposed on a hole wall of the light exit hole of the reflection member and a hole wall of the through hole of the light guide plate.

An embodiment of the present invention further includes a circuit board having a circuit board body and a hole, the hole being located on the circuit board body, the circuit board being disposed between the at least one reflective case and the light guide plate The hole corresponds to the slot, and the aperture has the same aperture as the slot. The at least one light emitting component is disposed on the circuit board body and located on one side of the light guide plate.

An embodiment of the present invention further includes a circuit board having a circuit board body and a hole, the hole being located on the circuit board body, the circuit board being disposed between the light guide plate and the body, the hole Corresponding to the light exit hole, and the hole has the same aperture as the aperture of the light exit hole, and the at least one light emitting element is disposed on the circuit board body and located on one side of the light guide plate.

In order to provide a better understanding and understanding of the features and the efficacies of the present invention, the preferred embodiment and the detailed description are as follows:

Please refer to the first to second figures, which are perspective exploded views and flip-chip perspective views of the first embodiment of the light-emitting device of the present invention. As shown, the present embodiment is a light-emitting device 1 for illumination. Due to the high intensity of the light emitted by the light-emitting diode. If the light emitted by the light-emitting diode is directed at the human eye, this may cause glare. The inside of the illuminating device 1 of the embodiment includes at least one illuminating element, and most of the light emitted by the at least one illuminating element needs to be reflected before being externally illuminated. The structural design of the illuminating device 1 of the present embodiment can effectively improve the occurrence of the above glare, and the design is a round half-shell shape, which is different from the conventional structural design.

As described above, the illuminating device 1 of the embodiment includes at least one reflective shell 10, at least one illuminating module 20 and a reflecting member 30. The at least one reflective casing 10 has a casing 11 and an arc surface portion 12, and the arc surface portion 12 is located in the casing 11. The at least one light emitting module 20 is disposed under the at least one reflective shell 10 . The at least one light emitting module 20 has a light guide plate 21 and at least one light emitting element 22 , and the at least one light emitting element 22 is located on one side of the light guide plate 21 . The light guide plate 21 has a plate body 211 and a through hole 212. The through hole 212 is located at the plate body 211 corresponding to the notch 121 of the curved surface portion 12. The diameter D1 of the through hole 212 is smaller than the diameter D2 of the notch 121. The reflector member 30 is located under the at least one light-emitting module 20, and the reflector member 30 has a body 31 and a light-emitting aperture 32. The light-emitting aperture 32 is located in the body 31 corresponding to the through hole 212. The light-emitting aperture 32 is larger than the aperture 212. .

Furthermore, the light guide plate 21 is interposed between the at least one reflective shell 10 and the body 31, and the surface of the at least one reflective shell 10 and the reflecting member 30 facing the light guide plate 21 is a reflective structure. In addition, the at least one reflective shell 10 further includes a casing wall 13 surrounding the periphery of the casing 11 to form a receiving groove 100. The light guide plate 21 is located in the accommodating groove 100.

Please refer to the third figure, which is a schematic diagram of the light path of the light guide plate according to the first embodiment of the present invention. As shown in the figure, the light guide plate 21 of the embodiment includes the plate body 211 and the through hole 212, and the through hole 212 is located between the plate body 211. The perforations 212 are circular apertures. The plate body 211 is an annular body, and further includes a ring portion 213 and a plurality of light guiding portions 214. The light guiding portions 214 are annularly disposed on the ring portion 213, and the light guiding portion 214 is a V-shaped structure 2140. The two ends of the V-shaped structure 2140 are connected to the ring portion 213, and the at least one light-emitting element 22 is disposed at the tip end of the V-shaped structure 2140. In this embodiment, the light guide plate 21 includes a ring portion 213 and four light guiding portions 214, and the four light guiding portions 214 are equally disposed on the periphery of the ring portion 213, thereby forming a rectangular shape. Light guide plate 21 (as shown in the third figure).

Please refer to FIG. 4A and FIG. 4B together, which are schematic cross-sectional views and ray path diagrams of the first embodiment of the illuminating device of the present invention. As shown in the figure, the at least one light-emitting element 22 of the light-emitting device 1 of the present embodiment emits light, and the light is incident from the tip end of the V-shaped structure 2140 of the light guiding portion 214, and the light path is respectively guided to the V-shaped structure 2140. Both ends. Further, the light enters the ring portion 213 of the light guide plate 21 in a steady manner. The light rays of the at least one light-emitting element 22 are concentrated toward the ring portion 213. Please refer to the second figure, the diameter D1 of the through hole 212 of the light guide plate 21 is smaller than the diameter D2 of the notch 121 of the at least one reflective shell 10 and the diameter D3 of the light exit hole 32 of the reflective member 30, in other words, The inner portion of the ring portion 213 of the light guide plate 21 is convex and exposed to the notch 121 and the light exit hole 32. Thus, the light of the at least one light-emitting element 22 is concentrated on the inner side of the ring portion 213, and a part of the light is directly led out. At this time, the light is also reflected in the light guide plate 21 after multiple times, and the light intensity is not strong. Another portion of the light illuminates the arc surface portion 12 of the at least one reflective shell 10, and the arc surface portion 12 reflects the light outwardly, and the light passes through the through hole 212 of the light guide plate 11, and finally The light exit hole 32 of a reflecting member 30 is emitted.

In the present embodiment, the shortcomings of the prior art are improved. In the prior art, since the light intensity emitted by the light-emitting diode is large, if light is directly incident on the eye, glare or the like may easily occur. Therefore, the present invention provides the illuminating device 1 , which has the advantage that most of the light emitted by the at least one illuminating element 22 in the illuminating device 1 needs to be reflected by at least one light, in such a manner as to reduce the overall light intensity. Furthermore, the embodiment mainly includes the structural combination design of the at least one reflective shell 10, the light guide plate 20 and the reflective member 30, which is different from the appearance structure of the conventional light-emitting device, has a design sense, and also reduces the at least one light-emitting. The number of components required to be set, while reducing manufacturing costs.

Please refer to FIG. 5, which is a schematic diagram of a light guide plate according to a second embodiment of the present invention. As shown in the figure, the difference between the present embodiment and the first embodiment is that the plate body 211A of the light guide plate 21A of the embodiment further includes a ring portion 213A and a light guiding portion 214A, and the light guiding portion 214A is annularly disposed. The ring portion 213A, the light guiding portion 214A is a lobe structure 2140A. The lobe structure 2140A extends outwardly from the outer side of the ring portion 213A by an arc edge 2141A and a straight edge 2142A, and the arc edge 2141A is connected thereto. The straight side 2142A is formed as a lobed corner, and the at least one light emitting element 22A is disposed on the straight side 2142A.

As described above, the light of the at least one light-emitting element 22A is incident on the light guiding portion 214A of the light guide plate 21A by the straight side 2142A. After the light is irradiated on the arc side 2141A, the light is reflected toward the ring portion 213A. In the manner of structural design, the light guide plate 21 of the embodiment can illuminate the light of the at least one light-emitting element 22A as much as possible in the direction of the ring portion 213A. Moreover, the structure of the light guide plate 11 can reduce the number of uses of the at least one light-emitting element 13 and achieve the same illumination brightness. The structure of the light guide plate 21A of the present embodiment is similar to that of the light guide plate 21 of the first embodiment, and therefore will not be described.

Please refer to FIG. 6A and FIG. 6B, which are schematic cross-sectional views and a ray path diagram of a third embodiment of the illuminating device of the present invention. As shown in the figure, the difference between the embodiment and the first embodiment is that the light-emitting device 1 of the embodiment further includes a light-shielding member 40 disposed on the hole wall of the light-emitting hole 32 of the reflector member 30 and the guide. The hole wall of the through hole 212 of the light plate 21 simultaneously shields the light exiting direction of the hole wall of the light exit hole 32 and the hole wall of the hole 212. Thus, the inner portion of the ring portion 213 of the light guide plate 21 is convex, and only the notch 121 is exposed above. Then, the light of the at least one light-emitting element 22 is concentrated on the inner side of the ring portion 213, and all the light is directly irradiated to the arc surface portion 12 of the at least one reflective shell 20, and the curved surface portion 12 reflects the light outward. The light passes through the through hole 212 of the light guide plate 11 and is finally emitted by the light exit hole 32 of the reflective member 30. In this embodiment, the light emitted by the illuminating device 1 needs to be reflected by the at least one reflective shell 10 to reflect light.

Please refer to the seventh and eighth figures, which are schematic diagrams of the first embodiment and the second embodiment of the circuit board and the light board of the present invention. As shown in the figure, the light-emitting device 1 of the embodiment further includes a circuit board 50. The circuit board 50 has a circuit board body 51 and a hole 52. The hole 52 is located on the circuit board body 51. The circuit board 50 is disposed between the at least one reflective case 10 and the light guide plate 20. The hole 52 corresponds to the hole 52. The at least one light-emitting element 22 is disposed on the circuit board body 51 and located on one side of the light guide plate 21 . The aperture of the hole 52 is the same as the aperture of the slot 121 . In addition, the circuit board 50 may be disposed between the light guide plate 21 and the body 30. The hole 52 corresponds to the light exit hole 32, and the hole 52 has the same aperture as the aperture of the light exit hole 32. The light emitting element 22 is disposed on the circuit board body 51 and located on one side of the light guide plate 21. The arrangement of the at least one illuminating element 22 in this embodiment is mainly based on the user's requirements, and does not limit the arrangement of the circuit board 50, or the at least one illuminating element 22 is separately disposed on the light guide plate 21. One side.

As described above, the illuminating device 1 further includes a light board 60 disposed under the reflecting member 30. After the light emitted from the light-emitting hole 32 of the reflecting member 30 passes through the light-emitting plate 60, the uneven light can be refracted by the light to achieve the phenomenon of averaging the light.

Please refer to the ninth figure, which is a schematic diagram of the combined illuminating device of the illuminating device of the present invention. As shown in the figure, the at least one reflective shell 10 of the embodiment is a plurality of reflective shells 10, and the at least one light emitting module 20 is a plurality of light emitting modules 20, and the reflecting member 30 is a plurality of reflecting members 30. After the elements are individually arranged and combined into individual plate structures, they are combined in the same manner as the first embodiment. The illuminating device 1 forms a structure of a panel light source. Furthermore, the circuit board 50 and the lamp board 60 may be combined in the present embodiment in the same manner as the foregoing embodiment, and thus will not be described again.

In summary, the illuminating device of the present invention comprises at least one reflective shell, at least one illuminating module and a reflecting member. The reflective shell has a casing and an arc surface, the arc surface is located in the casing, and the light emitting module is located under the reflector shell. The light emitting module has a light guide plate and at least one light emitting component, and the light emitting component is located at one side of the light guide plate, and the light guide plate has a plate body and a perforation, the perforation corresponding to a notch of the arc surface and located in the plate body, the diameter of the perforation is smaller than the diameter of the notch, the reflection member is located under the illumination module, the reflection member has a body and a light exit hole, and the light exit hole It should be perforated and located on the body. After the light of the light-emitting module is irradiated to the reflective shell, the light reflects the light-emitting hole of the reflector to perform illumination. Therefore, most of the light emitted by the at least one light-emitting element in the light-emitting device needs to be reflected by at least one light, which can reduce the overall light intensity. Furthermore, the structural design of the embodiment is different from the external structure of the conventional light-emitting device, and has a design sense, and also reduces the number of required installations of the at least one light-emitting element, thereby reducing manufacturing costs.

As can be seen from the above, the present invention has indeed achieved a breakthrough structure, and has improved invention content, and at the same time, can achieve industrial utilization and progress. When complying with the provisions of the Patent Law, the invention patent application is filed according to law. The Board of Review examiners granted legal patent rights and was praying.

1 illuminating device 10 reflecting shell 100 accommodating groove 11 housing 12 arc surface 13 shell wall 121 notch 20 illuminating module 21, 21A light guide plate 211, 211A plate body 212 perforation 213, 213A ring portion 214, 214A light guiding portion 2140 2140A V-shaped structure 2141A Arc edge 2142A Straight edge 22, 22A Light-emitting element 30 Reflector 31 Body 32 Light-emitting hole 40 Light-shielding member 50 Circuit board 51 Circuit board body 52 Hole 60 Light board

1 is an exploded perspective view of a first embodiment of a light-emitting device of the present invention; FIG. 2 is a perspective exploded view of a first embodiment of the light-emitting device of the present invention; A schematic view of a light path of a first embodiment of a light guide plate of the present invention; FIG. 4A is a perspective cross-sectional view of a first embodiment of the light-emitting device of the present invention; FIG. 4B is a view of the light-emitting device of the present invention Schematic diagram of the light path of the first embodiment; FIG. 5 is a schematic view showing the light path of the second embodiment of the light guide plate of the present invention; FIG. 6A is a perspective view of the third embodiment of the light-emitting device of the present invention Figure 6 is a schematic view showing a light path of a third embodiment of the light-emitting device of the present invention; Figure 7 is a schematic view showing a first embodiment of the circuit board and the light panel of the present invention; It is a schematic diagram of a second embodiment of a circuit board and a light board of the present invention; and a ninth drawing: a schematic view of a combined light fixture of the light-emitting device of the present invention.

Claims (10)

A light-emitting device comprising: at least one reflective shell having a casing and an arc-faced portion, the arc-face portion being located in the casing; at least one light-emitting module located under the at least one reflective casing, the at least one light-emitting module The group has a light guide plate and at least one light-emitting element, and the at least one light-emitting element is located at one side of the light guide plate. The light guide plate has a plate body and a through hole corresponding to a notch of the arc face portion. And a reflector member under the at least one light-emitting module, the reflector member has a body and a light-emitting aperture, and the light-emitting aperture is opposite to the body. The illuminating device of claim 1, wherein the diameter of the perforation is smaller than the diameter of the notch. The illuminating device of claim 1, wherein the diameter of the perforation is smaller than the diameter of the light exit hole. The illuminating device of claim 1, wherein the at least one reflective shell and the surface of the reflecting member facing the light guiding plate are reflective structures. The illuminating device of claim 1, wherein the at least one reflective shell further comprises a casing wall surrounding the casing to form a receiving groove, wherein the light guiding plate is located at the illuminating plate Set in the slot. The light-emitting device of claim 1, wherein the plate further comprises: a ring portion; a plurality of light guiding portions, wherein the light guiding portion is a V-shaped structure, the V-shaped portion The two ends of the structure are connected to the ring portion, and the at least one light emitting element is disposed at the tip end of the V-shaped structure. The illuminating device of claim 1, wherein the plate further comprises: a ring portion; a plurality of light guiding portions, wherein the ring portion is disposed on the ring portion, and the light guiding portion is a lobed structure, the bulge The structure extends from the outer side of the ring portion by an arc edge and a straight edge, and the arc edge is connected to the straight edge, and the at least one light emitting element is disposed on the straight side. The illuminating device of claim 1, further comprising a light shielding member disposed on the hole wall of the light exit hole of the reflection member and the hole wall of the through hole of the light guide plate. The illuminating device of claim 1, further comprising a circuit board having a circuit board body and a hole, the hole being located on the circuit board body, the circuit board being disposed on the at least one reflective shell and the Between the light guide plates, the holes correspond to the notches, and the apertures of the holes are the same as the apertures of the slots. The at least one light-emitting element is disposed on the circuit board body and located on one side of the light guide plate. The illuminating device of claim 1, further comprising a circuit board having a circuit board body and a hole, the hole being located on the circuit board body, the circuit board being disposed on the light guide plate and the body The hole corresponds to the light exit hole, and the hole has the same aperture as the aperture of the light exit hole. The at least one light emitting element is disposed on the circuit board body and located on one side of the light guide plate.