CN202955648U

CN202955648U - Light-emitting diode light guide lighting fixture

Info

Publication number: CN202955648U
Application number: CN2012206539591U
Authority: CN
Inventors: 林清钿
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-11-30
Filing date: 2012-11-30
Publication date: 2013-05-29
Anticipated expiration: 2022-11-30

Abstract

The utility model provides a light-emitting diode light guide lighting fixture. The light-emitting diode light guide lighting fixture comprises a base, a driving circuit board, a light emitting module, a light guide plate and a reflecting layer, wherein the driving circuit board is arranged on the base, the light emitting module is provided with multiple light-emitting diodes which are electrically connected with the driving circuit board and are annularly arranged, a light guide housing is made of a light transmitting material, is arranged on the base and comprises an opened end part with an annular end surface, and a closed end part, wherein the opened end part and the closed end part are oppositely arranged at intervals, the opened end part corresponds to the light-emitting diodes and receives light given out by the light-emitting diodes, the reflecting layer is pasted and arranged on the inner surface of the light guide housing and is used for reflecting light rays of the light-emitting diodes, and the light guide housing is matched with the reflecting layer and can convert point light sources of the light-emitting diodes into area light sources, so that uniform and soft illuminating rays are generated, and the number of the light-emitting diode can be reduced.

Description

The LED guide light fixture

Technical field

The utility model relates to a kind of light conducting lamp, particularly relates to a kind of LED guide light fixture.

Background technology

In recent years, due to light emitting diode (Light-Emitting Diode, abbreviation LED) technology is ripe gradually, and it has advantages of that efficiency is high, the life-span is long, not cracky, reaction speed is fast, reliability is high etc., and conventional light source is too late, therefore start generally to be applied on various ligthing paraphernalias.

Yet, light emitting diode this as a kind of spot light, so have the problem that rising angle is less, and while using under high power, the situation of dazzle is quite serious, can not be directly exposedly be used as the light fixture use.

Consult Fig. 1, existing LED guide light fixture comprises a pedestal 11, most light emitting diodes 12, and the light shield 13 of these light emitting diodes 12 of shade.

In prior art, by this light shield 13 that uses cloudy surface, that not only can relax these light emitting diodes 12 dazzles the light situation, also can make light after the refraction through this light shield 13, becomes more even and soft, and can strengthen rising angle.

Yet, due to the little restriction of the rising angle of light emitting diode 12 own, luminance difference for fear of the position that light emitting diode 12 is not set and other positions is excessive, and the problem of generation brightness irregularities, light emitting diode 12 must evenly gather on light fixture, and cause light emitting diode 12 quantity of use more, and produce the high problem of heating degree.

The utility model content

The purpose of this utility model is to provide a kind of LED guide light fixture that can use less light emitting diode to reach Uniform Illumination.

The utility model LED guide light fixture comprises: a pedestal, a drive circuit board, an illuminating module, a light-guiding shade, and a reflecting layer.

Illuminating module of the present utility model, have most the light emitting diodes that are electrically connected to this drive circuit board and ring-type setting.

Light-guiding shade of the present utility model, for the light-permeable material and be arranged at this pedestal, comprise contrary spaced end face open end and a closed end in the form of a ring.Corresponding these light emitting diodes of this open end, and receive the light that these light emitting diodes send.

Reflecting layer of the present utility model, paste the inner surface that is arranged at this light-guiding shade, in order to reflect the light of these light emitting diodes.

The beneficial effects of the utility model are: the incident light sent of these light emitting diodes enters this light-guiding shade by the open end end face of this light-guiding shade, and start to carry out scattering at this light-guiding shade, and coordinate this reflecting layer by scattered light to external reflectance, these reverberation and scattering luminous energy carry out Multiple Scattering again at this light-guiding shade, make this incident optical energy evenly be passed to this closed end, and make this LED guide light fixture to throw light on equably.

The accompanying drawing explanation

Fig. 1 is the schematic perspective view of existing a kind of LED guide light fixture;

Fig. 2 is the generalized section of a preferred embodiment of the utility model LED guide light fixture;

Fig. 3 is the schematic diagram of this preferred embodiment, and the arrangement mode of most light emitting diodes is described;

Fig. 4 is a light-guiding shade of this preferred embodiment and the decomposition generalized section in a reflecting layer;

Fig. 5 be this light-guiding shade of this preferred embodiment and this reflecting layer in conjunction with generalized section;

Fig. 6 is this light-guiding shade of this preferred embodiment and the elevational schematic view in this reflecting layer;

Fig. 7 is the generalized section of this preferred embodiment;

Fig. 8 is the generalized section of this preferred embodiment;

Fig. 9 is the decomposition generalized section of this light-guiding shade, this reflecting layer and a pedestal of this preferred embodiment;

Figure 10 be this preferred embodiment this light-guiding shade, this reflecting layer and this pedestal in conjunction with generalized section.

The specific embodiment

Below in conjunction with drawings and Examples, the utility model is elaborated:

Consult Fig. 2,3, the preferred embodiment of the utility model LED guide light fixture comprises a pedestal 2, drive circuit board 3, illuminating module 4, a light-guiding shade 5, and a reflecting layer 6.

This drive circuit board 3 is arranged at this pedestal 2.

This illuminating module 4 has most the light emitting diodes 41 that are electrically connected to this drive circuit board 3 and ring-type setting.

Consult Fig. 2, Fig. 4 and Fig. 5, this light-guiding shade 5 is for the light-permeable material and be arranged at this pedestal 2, comprises contrary spaced end face open end 51 and a closed end 52 in the form of a ring.This open end 51 is arranged at this pedestal 2, and its end face abuts against this drive circuit board 3.Corresponding these light emitting diodes 41 of this open end 51, and receive the light that these light emitting diodes 41 send.In this example, this light-guiding shade 5 is the complete transparent color that do not have, yet, preferably, also can allow these light-guiding shade 5 colors for colored, thereby the light that these light emitting diodes 41 send convert colored illumination light to.

In the present embodiment, the Zhou Jing of this light-guiding shade 5 by this open end 51 to these closed end 52 convergents.These closed end 52 outer surfaces are circular arc.Preferably, the distance of 52 of the open end 51 of this light-guiding shade 5 and this closed ends can change design according to appearance or lighting demand, as shown in Figures 7 and 8.But the external form of this light-guiding shade 5 also can be other embodiments.

Consult Fig. 2 and Fig. 4, this reflecting layer 6 pastes the inner surface that is arranged at this light-guiding shade 5, and its end face abuts against this drive circuit board, and its outer surface matches with open end 51 inner surfaces of this light-guiding shade 5 and form an annular groove 7, as shown in Figures 5 and 6.This annular groove 7 is in order to accommodating these light emitting diodes 41.This reflecting layer 6 is in order to reflect the light of these light emitting diodes 41.

Consult Fig. 8, Fig. 9 and Figure 10, preferably, the mode that this light-guiding shade 5 is arranged at this pedestal 2 is through this pedestal 2 by its closed end 52, yet this pedestal inner surface Zhou Jing is the Zhou Jing that is less than these open end 51 outer surfaces, so this open end 51 abuts against in this pedestal 2 inner surfaces to be close to mode.In addition, these open end 51 end faces be with this drive circuit board 3 separately.Therefore open end 51 end faces that this annular groove 7 can be these reflecting layer 6 outer surfaces, this light-guiding shade 5 with this pedestal inner surface 2, match form, as shown in figure 10.

In the present embodiment, this reflecting layer 6 is plastic cement material, and color is white, but but also can be material and the color of other reflection rays.

The incident light sent of these light emitting diodes 41 enters this light-guiding shade 5 by the open end 51 of this light-guiding shade 5, and start to carry out scattering at this light-guiding shade 5, and coordinate Zhou Jing design to these closed end 52 convergents by this open end 51 of this light-guiding shade 5, make this reflecting layer 6 except can be by the part scattered light to external reflectance, can also make the scattered light of another part carry out again Multiple Scattering with wide-angle reflection at this light-guiding shade 5, make this incident optical energy evenly be passed to this closed end 52, thereby light emitting diode 41 spot lights evenly are converted to area source to throw light on equably and improves dazzle to reach, and can be in order to increase the atmosphere of environment, as environment lamp, use, compared to prior art, can be in these light emitting diode 41 situations of using lesser amt, avoided the problem of brightness irregularities, therefore can alleviate the heating situation of light fixture, also reduced demand and the cost in the heat radiation.

The present embodiment can be used on the bulb purposes, is inserted on tube face, but is not limited to this, also can use in purposes such as situation light fixture or mini light nights.

In sum, the utility model not only can be used these less light emitting diodes 41 to reach Uniform Illumination, transfers spot light to area source, also can reduce the heating situation of light fixture, therefore really can reach this novel purpose.

Below only with regard to concrete constructed embodiment of the present utility model, add and give explanation, under without separated structure of the present utility model and spirit, allly be skillful in those skilled in the art scholar, still can do all variations and modification, all this changes and still is considered as being encompassed in the following claim of this case with modifying.

Claims

1. a LED guide light fixture, comprise: a pedestal, a drive circuit board that is arranged at this pedestal, it is characterized in that: this LED guide light fixture also comprises an illuminating module, a light-guiding shade, an and reflecting layer, this illuminating module has most the light emitting diodes that are electrically connected to this drive circuit board and ring-type setting, this light-guiding shade is the light-permeable material and is arranged at this pedestal, comprise contrary spaced end face open end and a closed end in the form of a ring, corresponding described light emitting diode of this open end and receive the light that described light emitting diode sends, this reflecting layer pastes the inner surface that is arranged at this light-guiding shade, in order to reflect the light of described light emitting diode.

2. LED guide light fixture as claimed in claim 1 is characterized in that: the Zhou Jing of this light-guiding shade is by this open end to this closed end convergent, and this open end is arranged at this pedestal.

3. LED guide light fixture as claimed in claim 2, it is characterized in that: this closed end outer surface is circular arc.

4. LED guide light fixture as claimed in claim 1 is characterized in that: the open end inner surface of this light-guiding shade matches with this reflecting layer outer surface and forms an annular groove.

5. LED guide light fixture as claimed in claim 1, it is characterized in that: separately, the open end end face of this light-guiding shade, this reflecting layer outer surface and this pedestal inner surface match and form an annular groove for the open end end face of this light-guiding shade and this drive circuit board.

6. LED guide light fixture as described as claim 4 or 5, it is characterized in that: this annular groove is in order to accommodating described light emitting diode.

7. LED guide light fixture as described as claim 4 or 5, it is characterized in that: this reflecting layer is plastic cement material, and color is white.

8. LED guide light fixture as described as claim 4 or 5 is characterized in that: this light-guiding shade color is for colored.