TW201407101A - LED light guide device - Google Patents

Abstract

The present invention relates to an LED light guide device comprising a transparent body and at least one matte reflective layer, wherein the transparent body is made of a transparent light guiding material with a light introducing part formed at each of two ends. The light introducing part of at least one end can be used to lead in the light of at least an LED. The matte reflective layer is bonded to the outside of the transparent body to allow the LED source to subject to multiple times of repeated reflections by means of an inner layer of the matte reflection layer after the LED light is guided into the transparent body, so that the LED light is reflected and transmitted only in the transparent body to be thereby accumulated in the transparent body to constitute a light guide device with LED light accumulation function.

Description

LED light guide

The invention relates to an LED light guiding device, in particular to an LED light emitting device, and a device having a light transmitting body and an internal reflection fog reflective layer, so that the LED light source reflects and conducts and accumulates inside the light transmitting body.

According to the LED lighting device, it is widely used in lighting and decoration. In particular, the LED lighting device has environmental protection and more conspicuous light, and is gradually favored by consumers, but the LED lighting device is used for lighting or decoration. It is necessary to use a lamp cover or a transparent light guide plate to properly shield or guide the light source. However, the lamp cover or the transparent light guide plate used in the LED light-emitting device is directly scattered in the space through the lamp cover or the transparent light guide plate, which not only makes the LED The LED light source of the illuminating device cannot exert the optimal illuminating effect and illumination brightness.

In the related prior patent technical literature, such as the invention patent case of the "Light Emitting Diode Lamp" of the Republic of China Patent No. I367301, although a reflector is provided in the lamp to assist the light emitted by the LED to be reflected by the light source After that, it is projected through the window to the outside of the illuminating diode lamp, and the reflection provided by the reflector to the illuminating body of the illuminating body is reflected only by a single time, and there is no way to effectively reflect the conduction and accumulation of the illuminating diode source. Its light reflection is only used to change the direction of light projection.

In addition, as disclosed in the Patent No. M431116 of the Republic of China on "Warning Lights and Light Guides", the light emitted by the light-emitting elements is transmitted through the light guide strips and the light-transmissive tubes, and the light is directly projected. The light strip only guides light and does not have any light accumulation effect, and most of the light is scattered directly through the light-transmitting tube shell at the end of the light-emitting element, and the brightness at the end of the light-guiding strip is insufficient. The illumination of the entire light guide tube is uneven.

The main object of the present invention is to provide an LED light guiding device for improving the problem that the lampshade or the transparent light guiding plate of the conventional LED lighting device is easily permeable to conductive reflection or light storage.

For the purpose of the above, the LED light guiding device of the present invention comprises a light-transmitting body and at least one mist-like reflective layer, wherein the light-transmitting body is formed of a transparent light-guiding material, and an introduction portion is respectively formed at both ends. The at least one end of the lead-in portion can be used to introduce at least one LED light source, and the mist-like reflective layer is coupled to the outside of the light-transmitting body to provide the LED light source after being introduced into the light-transmitting body, and the LED light source is transmitted through the inner layer of the mist-like reflective layer. The LED light source is reflected and conducted only in the light-transmitting body and accumulated in the light-transmitting body to form a light guiding device for accumulating the LED light source.

The LED light guiding device of the present invention is characterized in that after the LED light source is reintroduced into the light transmitting body by the light transmitting body and the mist reflective layer, the inner layer of the mist reflecting layer is repeatedly reflected by the inner layer. The conductive reflection and the light storage function are formed, so that the LED light source can be completely accumulated in the light-transmitting body, so that the light-transmitting body as a whole can uniformly conduct and emit LED light.

As shown in the first and second figures, the first embodiment of the LED light guiding device 100 of the present invention includes a light transmitting body 10, which is formed of a transparent light guiding material. In the first embodiment of the present invention, a cylindrical shape is taken as an example, and an introduction portion 11 is formed at each end, and the introduction portion 11 of the at least one end can be used to introduce at least one LED light source 200, and the type of the LED light source 200 is not In the present invention, an LED light-emitting element is taken as an example.

At least one mist-like reflective layer 20 is coupled to the outside of the light-transmitting body 10. The shape and shape of the mist-like reflective layer 20 are not limited. In the present invention, the light-transmissive body 10 is integrally formed and has a cross-section of wave teeth. The reflective material of the shape (as shown in the second figure), the fog-shaped reflective layer 20 is provided after the LED light source 200 is introduced into the light-transmitting body 10 through the introduction portion 11 of at least one end of the transparent body 10, and the LED light source 200 is caused. The LED light source 200 is reflected and conducted only in the light-transmitting body 10 and accumulated in the light-transmitting body 10, so that the light-transmitting body 10 can be uniformly generated as a whole. Bright light.

In addition, as shown in the third figure, in the second embodiment of the present invention, the cross-section of the lead-in portion 11 at both ends of the light-transmitting body 10 is formed to have a plurality of oblique cut lines 111 for transmitting the LED light source 200. When the oblique cut 111 is introduced into the light-transmitting body 10, it has more introduction angles of refraction.

Referring to FIG. 4 again, in a third embodiment of the present invention, the cross section of the introduction portion 11 of the light-transmitting body 10 is provided with a plurality of concentric circular cuts 112, and the LED light source 200 is transmitted through. When the conical circular cut 111 is introduced into the light transmitting body 10, it has more introduction angles of refraction.

Referring to the fifth embodiment, in the fourth embodiment of the present invention, at least one concentrating groove 113 is formed in the at least one introduction portion 11 of the transparent body 10. The shape of the concentrating groove 113 is not In the present invention, the tapered light groove is taken as an example, and when the LED light source 200 is introduced into the light-transmitting body 10, the LED light source 200 is condensed and introduced into the light-transmitting body 10.

In addition, as shown in the sixth embodiment, in the fifth embodiment of the present invention, the shape of the light-transmitting body 10 is U-shaped, and the lead-in portions 11 at the two ends of the light-transmitting body 10 are respectively an LED light source 200 and 210 is projected such that the interior of the light-transmitting body 10 can exhibit the refraction and interference of the projected light of at least two different LED light sources 200 and 210 to form a more diverse LED light source bright display effect.

Referring to FIG. 7 again, in a sixth embodiment of the present invention, the light-transmitting body 10 has a spiral shape, and the introduction portions 11 at both ends are respectively projected by at least two different LED light sources 200 and 210. The refraction and interference of light, in the same way, can produce more light and bright LED light source display effects.

The seventh embodiment of the present invention is shown in FIG. 8 , wherein the spiral transparent body 10 shown in the sixth embodiment of the seventh embodiment is placed in a transparent cover 30. The light body 10 integrally forms an illumination source to form an LED illumination lamp structure.

The LED light guiding device 100 of the present invention is shown in the above first to eighth embodiments, and the related description and the drawings are merely for clarifying the technical content and technical means of the present invention, and the preferred implementation is disclosed. The scope of the invention is not limited by the scope of the invention, and the scope of the invention is defined by the scope of the following claims. It.

100. . . LED light guide

10. . . Light-transmitting body

11. . . Import department

111. . . Oblique cut

112. . . Concentric circle

113. . . Spotlight

20. . . Foggy reflective layer

30. . . Transparent cover

200. . . LED light source

210. . . LED light source

The first figure is a perspective view of the first embodiment of the LED light guiding device of the present invention.

The second figure is a cross-sectional enlarged view of the first figure, wherein the LED light source is in a state of conducting reflection and accumulating light source through the mist reflective layer in the light-transmitting body.

The third figure is a diagram of a second embodiment of the LED light guiding device of the present invention.

The fourth figure is a diagram of a third embodiment of the LED light guiding device of the present invention.

Figure 5 is a view showing a fourth embodiment of the LED light guiding device of the present invention.

Figure 6 is a view showing a fifth embodiment of the LED light guiding device of the present invention.

Figure 7 is a view showing a sixth embodiment of the LED light guiding device of the present invention.

Figure 8 is a view showing a seventh embodiment of the LED light guiding device of the present invention.

100. . . LED light guide

11. . . Import department

20. . . Foggy reflective layer

200. . . LED light source

Claims (11)

An LED light guiding device comprises: a light-transmitting body, which is formed of a transparent light-guiding material, and an introduction portion is formed at each end, the introduction portion of the at least one end is capable of introducing at least one LED light source; and at least one fog The reflective layer is coupled to the outside of the light-transmitting body, and the mist-like reflective layer provides the LED light source to be introduced into the light-transmitting body through the introduction portion of at least one end of the light-transmitting body, and the LED light source is transmitted through the inner layer of the mist-reflecting layer. Repeatedly reflecting a plurality of times, the LED light source is only reflected and conducted in the light-transmitting body and accumulated in the light-transmitting body, so that the light-transmitting body as a whole uniformly generates bright light. The LED light guiding device according to claim 1, wherein the cross section of the introduction portion of the light transmitting body is provided with a plurality of oblique cutting lines. The LED light guiding device according to claim 1, wherein the cross section of the introduction portion of the light transmitting body is provided with a plurality of concentric circular cutting lines. The LED light guiding device according to claim 1, wherein the light transmitting body has a cylindrical shape. The LED light guiding device according to claim 1, wherein the light transmitting body has a U shape, and the introduction portions at both ends are respectively introduced into the light source by at least one LED light source. The LED light guiding device according to claim 1, wherein the light transmitting body has a spiral shape, and the introduction portions at both ends are respectively introduced into the light source by at least one LED light source. The LED light guiding device of claim 6, wherein the spiral transparent body is placed in a transparent cover. The LED light guiding device according to claim 1, wherein at least one light collecting groove is formed in the introduction portion of the light transmitting body. The LED light guiding device of claim 8, wherein the collecting groove is a conical groove. The LED light guiding device according to claim 1, wherein the mist reflective layer is integrally formed with the light transmitting body. The LED light guiding device according to claim 1 or 10, wherein the mist reflective layer has a wave-shaped reflective material.