TWM482527U - Light-emitting module - Google Patents

Description

Light module

The present invention provides a light-emitting module, especially a light-emitting module that can improve light-concentrating efficiency, light efficiency, and light uniformity.

According to the LED illuminator, it has the advantages of high brightness, power saving, environmental protection and long service life. The LED illuminator and the light-emitting module of the light guide plate are widely used for lighting of various electronic products (such as mobile phones, computers) and lamps. Gradually popularized.

As shown in FIG. 1 , it is a current light-emitting module structure, and the light-emitting module 10 includes a light guide plate 11 and two LED lamps 12 on both sides of the light guide 11 , and the light guide plate 11 has an entrance with respect to the two LED lamps 12 . a light surface 111, a light emitting surface 112 and a reflecting surface 113 opposite to the light emitting surface 112. The surface of the reflecting surface 113 is provided with a plurality of microstructures, and the light source of the LED lamp 12 located on both sides can enter the light guiding plate via the two light incident surfaces 111. In the 11th, the light emitted from the light exit surface 112 is reflected by the reflection surface 113.

The above lighting module has the following disadvantages in its implementation:

1. Uneven light emission: When the light source of the LED lamp 12 located on both sides is incident on the light guide plate 11, the light source is guided by the light guide plate 11, and the incident energy of the light source is not the same due to the stroke length, causing both ends. It is brighter and less bright in the middle, and the brightness of the light is uneven.

Second, the light efficiency is not good: the LED light 12 is a scattering light source, and the light-emitting module 100 does not have any light collecting design, so that the light source cannot be totally concentrated on the light-incident surface 111, so the light-emitting rate is still improved.

Third, easy to have glare: Because the LED light 12 is a scattering light source, some of the light sources are easily emitted by both sides to produce glare.

Therefore, the creator has carefully researched and improved, and after years of experience in this industry, he developed this new type.

Therefore, the first object of the present invention is to provide a light-emitting module having excellent light collection, uniformity, and light efficiency.

The second object of the present invention is to provide a light-emitting module capable of avoiding the occurrence of glare.

The present invention provides a light-emitting module, which includes at least: a light guide plate including a light-emitting surface, two total reflection surfaces, and two light-incident surfaces; the two total reflection surfaces are opposite to the light-emitting surface, and the two-shots The surface of the two total reflection surfaces has a plurality of microstructures, and the two light incident surfaces are located on the left and right sides to connect the light exit surface and the two total reflection surfaces; The two sides of the light guide plate are disposed opposite to the two light incident surfaces; and the two light sources are respectively disposed corresponding to the two reflectors, so that the two light sources can be respectively incident into the two reflectors to reflect the two light sources and reflect the two light sources to the two through the two reflectors. After entering the light surface, all the light sources are evenly emitted to the light exit surface by the two light entrance surfaces and the two total reflection surfaces.

Preferably, two extending portions extend on both sides of the light-emitting surface; each of the reflecting covers includes a reflecting portion having a curved surface and a base portion abutting the extending portion, and the reflecting portion and the base portion are connected in a meandering manner.

Preferably, the plurality of microstructures are continuous V-shaped grooves.

Preferably, the two light sources have two LED illuminators and at least one circuit board.

Therefore, compared with the prior art, the present invention can effectively concentrate the two light sources via two reflectors, and totally reflect the light source into the light guide plate, and then use the two total reflection surfaces in a V-shaped reverse tilt configuration. The multi-optical design with symmetric uniform total reflection effectively controls the direction of light, and has the advantages of improving light efficiency and high uniform light output. Therefore, this new model can indeed improve many problems in the above-mentioned previous cases, and the substantive effects are improved.

Prior art:

10‧‧‧Lighting module

11‧‧‧Light guide

12‧‧‧LED lights

111‧‧‧Into the glossy surface

112‧‧‧Glossy

113‧‧‧reflecting surface

This new type:

20‧‧‧Light guide

21‧‧‧Glossy

22‧‧‧ total reflection surface

23‧‧‧Into the glossy surface

211‧‧‧Extension

30‧‧‧reflector

31‧‧‧Reflection Department

32‧‧‧ base

40‧‧‧Light source

41‧‧‧LED illuminator

42‧‧‧ boards

Figure 1 is a schematic diagram of a conventional luminaire.

Figure 2 is a perspective exploded view of the present invention.

Figure 3 is a schematic cross-sectional view of the novel.

Figure 4 is a schematic diagram of the light emission of the present invention.

Referring to FIGS. 2 to 4 , the present invention includes at least a light guide plate 20 including a light exit surface 21 , two total reflection surfaces 22 , and two light incident surfaces 23 . The two total reflection surfaces 22 are opposite to the light exit surface 21 . The two full-surfaces 22 are arranged in a V shape with a reverse inclination, and the surfaces of the two total reflection surfaces 22 have a plurality of microstructures. As shown in the figure, the plurality of microstructures are continuous V-shaped. The groove surface structure; and two extending portions 211 extending on both sides of the light-emitting surface 21 form a support surface.

The two reflectors 30 are respectively disposed on opposite sides of the light guide plate 20 and correspond to the two light incident surfaces 23 . Each of the reflectors 30 includes a reflective portion 31 having a curved surface and a base portion 32 opposite to the extending portion 211 . The reflective portion 31 and the reflective portion 31 The bases 32 are connected in a meandering manner; and the two light sources 40 are disposed on both sides of the light guide plate 20 to correspond to the two reflectors 30. The two light sources 40 have two LED light emitters 41 and at least one circuit board 42.

Referring to FIG. 4 , the light source generated by the two light sources 40 of the present invention can effectively converge the light sources of the two light sources 40 into the reflector 30 by the reflective reflectors 31 corresponding to the two reflectors 30 . The reflecting portion 31 having the curved surface of the reflecting cover 30 totally reflects the light source from the two light incident surfaces 23 into the light guide plate 20, and then forms the continuous V-shaped grooves by the two total reflecting surfaces 22 to form two inclined surfaces in reverse. The reflection is emitted by the light exiting surface 21 to obtain a high uniformity illumination effect.

With the above structure, the present invention has the following advantages:

First, the light extraction rate is good, the present invention can effectively use the two reflectors 30 to effectively collect the light sources of the two light sources 40 into the two reflectors 30, so as to achieve the best concentration of light, to improve the efficiency of the light source.

Second, the uniformity of light emission is good. The present invention can form a multi-reflection optical design by concentrating the reflection guide of the two reflectors 30 and the two tilting surfaces of the two total reflection surfaces 22 in a symmetrical V shape, thereby effectively controlling the light exiting direction. , to produce A lighter effect with better uniformity.

3. No glare: This novel uses two reflectors 30 to effectively concentrate the light sources of the two light sources 40 on the reflector 30, effectively avoiding the occurrence of glare.

In summary, the present invention can effectively provide two optical reflections by using two reflectors and two V-shaped total reflection surfaces, and the light source can form a multiple total reflection optical design, thereby effectively avoiding the incident light source. The travel produces energy loss and glare of the residual light to achieve better economic benefits such as better concentrating efficiency, light source use efficiency and high uniformity light output. However, the foregoing is only a preferred embodiment of the present invention, and the scope of the present invention is not limited thereto, that is, the equivalent changes and modifications made by the scope of the present invention should still be within the scope of the present invention. .

20‧‧‧Light guide

21‧‧‧Glossy

22‧‧‧ total reflection surface

23‧‧‧Into the glossy surface

211‧‧‧Extension

30‧‧‧reflector

31‧‧‧Reflection Department

32‧‧‧ base

40‧‧‧Light source

41‧‧‧LED illuminator

42‧‧‧ boards

Claims (4)

A light-emitting module includes at least a light guide plate including a light-emitting surface, two total reflection surfaces, and two light-incident surfaces; the two total reflection surfaces are opposite to the light-emitting surface, and the two total-surfaces are inclined in the opposite direction The V-shaped arrangement has a plurality of microstructures on the surface of the two total reflection surfaces, the two light-incident surfaces are located on the left and the right sides to connect the light-emitting surface and the two total reflection surfaces; and the two reflection covers are respectively disposed on both sides of the light guide plate. The two light sources are respectively disposed corresponding to the two reflectors, so that the two light sources are respectively incident into the two reflectors, so that the two light sources are collected by the two reflectors and then reflected to the two entrance surfaces, and then The two light entrance surfaces and the two total reflection surfaces uniformly emit all the light sources to the light exit surface. The illuminating module of claim 1, wherein the two sides of the illuminating surface extend with two extending portions; each of the reflecting covers comprises a reflecting portion having a curved surface and a base portion abutting the extending portion, wherein the reflecting portion and the base portion are ∠ Shaped connection. The lighting module of claim 1 or 2, wherein the plurality of microstructures are continuous V-shaped grooves. The lighting module of claim 1 or 2, wherein the two light sources have two LED illuminators and at least one circuit board.