TW201337144A - Lamp tube structure - Google Patents

Abstract

A lamp tube structure includes a tubular body, a light guide plate and a light source. The light guide plate is fixed to a tube wall of the tubular body and has a light incident portion facing to an inside of the tubular body. The light source is disposed at the tubular body and is opposite to the light incident portion of the light guide plate.

Description

Lamp structure

The present invention relates to a lamp tube structure, and more particularly to a lamp tube structure including a light guide plate.

At present, it is necessary to use lighting fixtures as lighting for public places or homes, and to set the lighting fixtures at desired locations according to the needs of use, and to change the brightness of the space by the light emitted by the lighting fixtures. Lighting fixtures occupy a very important position in life.

One of the purposes of lighting is to make the lighting space brighter to ensure a good view. One of the commonly used lighting fixtures is a daylight fixture. The light emitted by the fluorescent tube is quite sufficient. However, under long-term use, the lighting quality of the fluorescent tube will gradually decrease. Therefore, sometimes the light emitted by it will flicker, which will affect the vision health, and the fluorescent lamp. In the process of manufacturing and recycling, the pipe is prone to mercury pollution.

In view of this, it is necessary to develop a more environmentally friendly lighting tube to replace the existing fluorescent tube, and in order to replace the existing fluorescent tube, the specification of the illumination tube should be consistent with the existing fluorescent tube.

The present invention is directed to a lamp structure that replaces existing fluorescent tubes and avoids mercury contamination.

To achieve the above advantages, the present invention provides a lamp tube structure including a tubular body, a light guide plate, and a light source. The light guide plate is fixed to the tube wall of the tubular body, and the light guide plate has a light incident portion facing the tubular body. The light source is disposed on the tubular body and opposite to the light incident portion of the light guide plate.

In an embodiment of the invention, the tube wall is provided with a groove, the light guide plate is fixed to the groove, and the light incident portion is located in the groove.

In an embodiment of the invention, the light guide plate is a circular arc plate, and the light guide plate further has a light exit portion facing away from the tubular body.

In an embodiment of the invention, the lamp structure further includes a reflector disposed on a surface of the light guide plate facing the tubular body.

In an embodiment of the invention, the light guide plate is a flat plate, and the light guide plate further has at least one light exit portion adjacent to the light incident portion.

In one embodiment of the present invention, the light guide plate is folded back from the plate material to form a first light guiding portion, a second light guiding portion and a bending portion, and the bending portion is connected to the first light guiding portion and the second light guiding portion. The light incident portion of the light guide plate includes a surface of the first light guide portion and the second light guide portion facing the tubular body, and one of the first light guide portions is away from the surface of the second light guide portion and the second light guide portion The surfaces away from the first light guiding portion are respectively the light emitting surfaces.

In an embodiment of the invention, the lamp structure further includes a reflector disposed between the first light guiding portion and the second light guiding portion.

In an embodiment of the invention, the light guide plate has a plurality of diffusing particles inside.

In an embodiment of the invention, the light source comprises a circuit board and a plurality of light emitting elements disposed on the circuit board.

In one embodiment of the present invention, the lamp structure further includes two conductive bases respectively connected to the two ends of the tubular body and electrically connected to the light source, and the conductive bases respectively have electrical connection portions.

In an embodiment of the invention, the tubular body is made of a metal material.

In the present invention, the lamp tube structure includes a tubular body, a light guide plate, and a light source. The light guide plate is fixed to the tube wall of the tubular body, and the light guide plate has a light incident portion facing the tubular body. The light source is disposed in the tubular body and is opposite to the light incident portion of the light guide plate. Through the above structural design, a better light quality is achieved. In addition, the size of the tubular body conforms to the existing fluorescent tube size, and can be used in existing fluorescent lamp holders, so that it is convenient to replace the existing fluorescent tube.

The above and other objects, features and advantages of the present invention will become more <RTIgt;

Please refer to FIG. 1 , which is a cross-sectional view showing a structure of a lamp tube according to an embodiment of the present invention. As shown in FIG. 1, the lamp tube structure 1 of the present embodiment includes a tubular body 10, a light guide plate 11, and a light source 12. The light guide plate 11 is fixed to the tube wall 100 of the tubular body 10, and the light guide plate 11 has a light incident portion 110 facing the inside of the tubular body 10. The light source 12 is disposed on the tubular body 10 and opposed to the light incident portion 110 of the light guide plate 11. The detailed construction of the lamp structure 1 described in this embodiment will be further described below.

In view of the above, and referring again to FIG. 1 and FIG. 2, FIG. 2 is a schematic diagram of the light source 12 of FIG. The tube wall 100 of the tubular body 10 of the present embodiment is provided with a groove 101, for example. The light guide plate 11 is fixed to the groove 101, and the light incident portion 110 of the light guide plate 11 is located in the groove 101. The light guide plate 11 is, for example, a flat plate, and the light guide plate 11 further has at least one light exit portion 111 adjacent to the light incident portion 110. In the present embodiment, the two light exit portions 111 are exemplified. Since the light incident portion 110 of the light guide plate 11 is opposed to the light source 12 located in the tubular body 10, the light incident portion 110 of the light guide plate 10 can receive the light emitted by the light source 12 and conduct the light to the light exit portion 111. In addition, in order to increase the light extraction efficiency, a plurality of microstructures (not shown) may be disposed on the light guide plate 11. The microstructures may be grooves, diffusing particles or columns disposed on the light exit portion 111, or may be disposed on the guide. Diffusion particles inside the light plate 11.

The light source 12 of the present embodiment includes, for example, a circuit board 121 and a plurality of light-emitting elements 122 disposed on the circuit board 121. The light-emitting elements 122 are, for example, light-emitting diodes, but are not limited thereto. The circuit board 121 is fixed to the tubular body 10 by, for example, a thermal conductive adhesive. The material of the tubular body 10 described in this embodiment is, for example, a metal material, and the metal material is, for example, aluminum metal. The advantage of using the aluminum metal material as the tubular body 10 is that the aluminum metal has good thermal conductivity. When the light source 12 emits light, the light-emitting element 122 generates a large amount of thermal energy, and is disposed on the tubular body 10 made of aluminum metal. The light source 12 can conduct the thermal energy generated by the light-emitting element 122 by the good thermal conductivity of the aluminum metal to prevent the light-emitting element 122 from affecting the light-emitting quality or the service life due to the high temperature. The use of aluminum metal as the material of the tubular body 10 is only one embodiment of the present invention. The present invention is not limited thereto, and the metal material can be selected from other metal materials which also have good thermal conductivity according to requirements.

Please refer to FIG. 3 , which is a schematic diagram of the appearance of the lamp tube structure 1 shown in FIG. 1 . As shown in FIG. 3, the lamp structure 1 described in this embodiment further includes conductive bases 15, 16 for example. The conductive pedestals 15 and 16 are respectively connected to the two ends of the tubular body 10 and electrically connected to the light source 12, and the conductive pedestals 15, 16 respectively have electrical connection portions 17. The lamp structure 1 of the embodiment is electrically connected to an external power source (not shown in the figure) by the conductive bases 15, 16. In this embodiment, the combined dimensions of the tubular body 10 and the conductive bases 15, 16 are, for example, conform to the size of the existing fluorescent tube, so that the tube structure 1 can be directly used in the existing fluorescent lamp holder to replace the existing fluorescent lamp. tube. In addition, in this embodiment, since the light provided by the light source 12 is uniformized by the light guide plate 11, the light uniformity of the lamp structure 1 can be improved.

It should be noted that the manner in which the light guide plate 11 and the tubular body 10 are combined in the embodiment is only an example, and the present invention does not limit the manner in which the light guide plate 11 and the tubular body 10 are combined.

Please refer to FIG. 4 , which is a cross-sectional view showing a structure of a lamp tube according to another embodiment of the present invention. As shown in FIG. 4, the lamp structure 1a of the present embodiment is similar to the above-described lamp structure 1, except that the lamp structure 1a further includes a reflector 13, and the light guide plate 11a has only one light exit portion 111. The reflector 13 is disposed on the surface 112 of the light guide plate 11a opposite to the light exit portion 111. The purpose of the reflector 13 is disposed on the surface 112 of the light guide plate 11a. The reflector 13 can reflect the light emitted by the light source 12, thereby The light is emitted from the light exiting portion 111.

Please refer to FIG. 5 , which is a cross-sectional view showing a structure of a lamp tube according to another embodiment of the present invention. As shown in FIG. 5, the lamp tube structure 1b of the present embodiment is similar to the lamp tube structure 1 described in the above embodiment, and the difference is that the tube wall 100 of the tubular body 10b of the lamp tube structure 1b shown in FIG. For example, grooves 101 and 101b are provided. In conjunction with the structural design of the trenches 101, 101b, the lamp tube structure 1b described in this embodiment includes light guide plates 11, 11b. The light guide plate 11 and the light guide plate 11b are respectively fixed to the groove 101 and the groove 101b. In this embodiment, the number of the grooves and the light guide plate (two in this embodiment) is only one embodiment of the present invention, and the present invention is not limited thereto. The number of the grooves and the light guide plate can be set according to requirements. And increase or decrease. In addition, the light guide plates 11 and 11b according to the embodiment may also be provided with a reflector 13 as shown in FIG. 3 to adjust and control the light exit direction.

Please refer to FIG. 6 , which is a cross-sectional view showing a structure of a lamp tube according to another embodiment of the present invention. As shown in FIG. 6, the lamp tube structure 1c of the present embodiment is similar to the lamp tube structure 1 described in the above embodiment, except that the light guide plate 11c of the lamp tube structure 1c shown in FIG. 6 is, for example, an arc. Shaped board. The light guide plate 11c has a light exit portion 111c facing away from the tubular body 10c. In the lamp structure 1c of the present embodiment, the number of the grooves 101 and the light guide plate 11c (three in this embodiment) is only one embodiment of the present invention, and the present invention is not limited thereto. The number of the slots 101 and the light guide plate 11c can be increased or decreased as needed. In addition, similar to the above embodiment, in order to increase the light extraction efficiency, a plurality of microstructures (not shown) may be disposed on the light guide plate 11c, and the microstructures may be grooves, diffusion particles, columns, etc. disposed in the light exit portion 111c. Or a diffusing particle disposed inside the light guide plate 11c.

Please refer to FIG. 7, which is a lamp tube structure according to another embodiment of the present invention. As shown in FIG. 7, the lamp tube structure 1d of the present embodiment is similar to the lamp tube structure 1c shown in FIG. 6, except that the light guide plate 11d of the lamp tube structure 1d shown in FIG. 6 has a plurality of diffusion inside. The particles 14 are changed in uniformity of light emission of the light guide plate 11d by adjusting the distribution density of the diffusion particles 14. For example, in the interior of the light guide plate 11d, the distribution density of the diffusion particles 14 is gradually increased from the region adjacent to the light source 12 to the region away from the light source 12 to enhance the light uniformity of the entire light exit portion 111d. In addition, in this embodiment, a light guide plate 11d is taken as an example, but in other embodiments, the number of the light guide plates 11d included in the lamp tube structure may be plural.

Please refer to FIG. 8, which is a lamp tube structure according to another embodiment of the present invention. As shown in FIG. 8, the lamp tube structure 1d of the present embodiment is similar to the lamp tube structure 1 described in the above embodiment, except that the light guide plate 11e of the lamp tube structure 1e shown in FIG. The first light guiding portion 114, the second light guiding portion 115, and the bent portion 116 are formed. The bent portion 116 is connected to the first light guiding portion 114 and the second light guiding portion 115, and the light incident portion 110e of the light guiding plate 11e includes the surface 117 of the first light guiding portion 114 and the second light guiding portion 115 facing the light source 12. , 118. The surface 119 of the first light guiding portion 114 away from the second light guiding portion 115 and the surface 120 of the second light guiding portion 115 remote from the first light guiding portion 114 are respectively light emitting surfaces, that is, the light emitting portion 111e of the light guiding plate 11e includes Surfaces 119, 120. The reflector 13 may be disposed between the first light guiding portion 114 and the second light guiding portion 115 of the lamp tube structure 1e according to the embodiment.

In summary, the lamp structure described in the embodiment of the present invention can be directly applied to an existing fluorescent lamp socket, so that it can be easily replaced with an existing fluorescent lamp to avoid mercury pollution.

While the present invention has been described in its preferred embodiments, the present invention is not intended to limit the invention, and the present invention may be modified and modified without departing from the spirit and scope of the invention. The scope of protection is subject to the definition of the scope of the patent application.

1, 1a, 1b, 1c, 1d, 1e. . . Lamp structure

10, 10b, 10c. . . Tubular body

11, 11a, 11b, 11c, 11d, 11e. . . Light guide

12. . . light source

13. . . Reflector

14. . . Diffused particle

15,16. . . Conductive base

17. . . Electrical connection

100. . . Wall

101, 101b. . . Trench

110, 110e. . . Light entering department

111, 111c, 111d, 111e. . . Light exit

112, 113, 117, 118, 119, 120. . . surface

114. . . First light guide

115. . . Second light guide

116. . . Bending section

121. . . Circuit board

122. . . Light-emitting element

1 is a cross-sectional view showing a structure of a lamp tube according to an embodiment of the present invention.

2 is a schematic view of the light source of FIG. 1.

FIG. 3 is a schematic view showing the appearance of the structure of the lamp tube shown in FIG. 1.

4 is a cross-sectional view showing the structure of a lamp tube according to another embodiment of the present invention.

FIG. 5 is a cross-sectional view showing the structure of a lamp tube according to another embodiment of the present invention.

6 is a cross-sectional view showing the structure of a lamp tube according to another embodiment of the present invention.

FIG. 7 is a cross-sectional view showing the structure of a lamp tube according to another embodiment of the present invention.

FIG. 8 is a cross-sectional view showing the structure of a lamp tube according to another embodiment of the present invention.

1. . . Lamp structure

10. . . Tubular body

11. . . Light guide

12. . . light source

100. . . Wall

101. . . Trench

110. . . Light entering department

111. . . Light exit

121. . . Circuit board

122. . . Light-emitting element

Claims (11)

A lamp tube structure comprising: a tubular body; a light guide plate fixed to a tube wall of the tubular body, the light guide plate having a light incident portion facing the tubular body; and a light source disposed on the tubular body And facing the light incident portion of the light guide plate. The lamp tube structure of claim 1, wherein the tube wall is provided with a groove, the light guide plate is fixed to the groove, and the light incident portion is located in the groove. The lamp tube structure of claim 1, wherein the light guide plate is a circular arc plate, and the light guide plate further has a light exiting portion facing away from the tubular body. The lamp tube structure of claim 2, further comprising a reflector disposed on a surface of the light guide plate facing the tubular body. The lamp tube structure of claim 1, wherein the light guide plate is a flat plate, and the light guide plate further has at least one light exit portion adjacent to the light incident portion. The lamp tube structure of claim 1, wherein the light guide plate is folded back by a plate to form a first light guiding portion, a second light guiding portion and a bending portion, wherein the bending portion is connected to The first light guiding portion and the second light guiding portion, and the light incident portion of the light guiding plate includes a surface of the first light guiding portion and the second light guiding portion facing the tubular body, and the first guiding portion One of the light portions away from the surface of the second light guiding portion and the surface of the second light guiding portion away from the first light guiding portion are respectively a light emitting surface. The lamp tube structure of claim 6, further comprising a reflector disposed between the first light guiding portion and the second light guiding portion. The lamp tube structure of claim 1, wherein the light guide plate has a plurality of diffusing particles inside. The lamp structure of claim 1, wherein the light source comprises a circuit board and a plurality of light emitting elements disposed on the circuit board. The lamp tube structure of claim 1, further comprising two conductive bases respectively connected to the two ends of the tubular body and electrically connected to the light source, wherein the conductive bases respectively have an electrical connection unit. The lamp tube structure of claim 1, wherein the tubular body is made of a metal material.