CN202769312U

CN202769312U - LED lamp

Info

Publication number: CN202769312U
Application number: CN2012202447957U
Authority: CN
Inventors: 李�瑞; 段建民; 龙君; 张宏坤; 王升
Original assignee: Beijing BOE Optoelectronics Technology Co Ltd
Current assignee: BOE Technology Group Co Ltd
Priority date: 2012-05-28
Filing date: 2012-05-28
Publication date: 2013-03-06
Anticipated expiration: 2022-05-28

Abstract

The utility model discloses an LED lamp which comprises a lamp shade and further comprises a light guide plate positioned inside the lamp shade, and an LED light source positioned on the light entrance side of the light guide plate, wherein the light guide plate is mounted on the lamp shade through a connecting part; the LED light source is fixed relative to the light guide plate; and the light guide plate is provided with lattice points. When the LED lamp is in use, after light emitted by the LED light source is scattered by the lattice points on the light guide plate for one time or multiple times, the light meeting guiding conditions is guided out of the light guide plate directly; the whole light guide plate can guide out light, so that the light guide plate can convert point light source emitted by the LED light source into area light source; and in each LED lamp, only several or even one LED light source is required to obtain area light source, so that the utilization rate of the LED light source is improved. Therefore, the LED lamp improves the utilization rate of the LED light source under the premise of ensuring uniformity of luminance.

Description

A kind of LED light fixture

Technical field

The utility model relates to the luminous applied technical field of LED, particularly a kind of LED light fixture.

Background technology

Multiplex or the lighting (fluorescent lamp) of CCFL fluorescent tube in the market, still, such light fixture has highlighted the high shortcoming of power consumption, can not satisfy the demand of energy-conserving and environment-protective.

Therefore, led light source is as a kind of emerging semiconductor light-emitting elements, and, the advantages such as power consumption is low, long service life little with its volume are applied to lighting more and more widely.

In the LED light fixture that provides in the existing market, the uniformity of luminance of LED light fixture is the major issue that the technical staff of LED field of light fittings considers.

In the prior art, it is in a LED light fixture a plurality of led light sources to be set equably that LED field of light fittings technical staff solves the inhomogeneity technical way of LED lamp luminescence, and spot light is converted to area source, to satisfy the uniformity of luminance of LED light fixture.

Realize greatly having limited the utilization rate of led light source by the conversion of spot light to area source by being provided with a plurality of led light sources in the LED light fixture.

Therefore, how providing a kind of LED light fixture, improve the utilization rate of led light source under the prerequisite that guarantees uniformity of luminance, is those skilled in the art's technical issues that need to address.

The utility model content

The utility model provides a kind of LED light fixture that can improve the utilization rate of led light source under the prerequisite that guarantees uniformity of luminance, in order to solve problems of the prior art.

For achieving the above object, the utility model provides following technical scheme:

A kind of LED light fixture comprises lampshade; Also comprise the LGP that is positioned at described lampshade inside and the led light source that is positioned at described LGP incidence surface side; Described LGP is installed on described lampshade by connecting portion; Described LGP is provided with the site.

Preferably, described LGP density that the site is set along with and described led light source between distance increase and increase.

Preferably, the incidence surface of described LGP is positioned at the top of described LGP, and described led light source is arranged at described LGP top, and described site is arranged at perisporium and the bottom of described LGP.

Preferably, the top of described LGP is provided with groove, and described led light source is installed on the bottom land of described groove, and described bottom land and cell wall are the incidence surface of described LGP.

Preferably, described LGP be shaped as turbination, described site is arranged at the taper seat of described LGP.

Preferably, being shaped as of described LGP is cylindrical, and described site is arranged at periphery and the bottom surface of described LGP.

Preferably, described lampshade is inner arranges the corresponding position of the direction of site with described LGP and is provided with prism film.

Preferably, described prism film has double-deck prism.

Preferably, the making material of described lampshade is translucent plastic or ground glass.

The LED light fixture that the utility model provides comprises lampshade; Also comprise the LGP that is positioned at described lampshade inside and the led light source that is positioned at described LGP incidence surface side; Described LGP is installed on described lampshade by connecting portion; Described LGP is provided with the site.

The LED light fixture that the utility model provides adopts LGP to convert the spot light of led light source to area source; Above-mentioned LED light fixture in use, at first some is broken up through the site of LGP setting and satisfies the derivation condition after the reflection and directly derived LGP in the light that led light source sends, and the remaining light of not deriving continues to reflect in LGP, when reverberation reflexes to the site each time, all can be continued to break up and reflected, make the part in the light of not deriving satisfy derivation condition derivation LGP, until all derive LGP; Because whole LGP all can be derived light, so the spot light that LGP can send led light source converts area source to, only need several in each LED light fixture even a LED light source just can obtain area source, improved the utilization rate to led light source.

So the LED light fixture that the utility model provides has improved the utilization rate of led light source under the prerequisite that guarantees its uniformity of luminance.

Description of drawings

A kind of structural representation of the LED light fixture that Fig. 1 provides for the utility model;

The another kind of structural representation of the LED light fixture that Fig. 2 provides for the utility model.

The specific embodiment

Below in conjunction with the accompanying drawing among the utility model embodiment, the technical scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that obtains under the creative work prerequisite, all belong to the scope of the utility model protection.

At first statement, the words such as " top " above mentioned and hereinafter be about to mention, " perisporium ", " bottom " are only for orientation shown in the accompanying drawing 1, and its effect only is for convenience of description, does not refer in particular to implication.

As shown in Figure 1, a kind of structural representation of the LED light fixture that provides for the utility model of Fig. 1.

The LED light fixture that the utility model provides comprises lampshade 7; Also comprise the LGP 4 that is positioned at lampshade 7 inside and the led light source 3 that is positioned at LGP 4 incidence surface sides; LGP 4 is installed on lampshade 7 by connecting portion 2; LGP 4 is provided with site 5.

The LED light fixture that the utility model provides, the site 5 that employing LGP 4 arranges converts the spot light of led light source to area source; Above-mentioned LED light fixture in use, in the light that led light source sends at first some site 5 that arranges through LGP 4 break up and satisfy the derivation condition after the reflection and directly derived LGP 4, and the remaining light of not deriving continues to reflect in LGP 4, when reverberation reflexes to site 5 each time, all can be continued to break up and reflected, make the part in the light of not deriving satisfy derivation condition derivation LGP 5, until all derive LGP 4; Because whole LGP 4 all can be derived light, so the spot light that LGP 4 can send led light source converts area source to, only need several in each LED light fixture even a led light source just can obtain area source, improved the utilization rate to led light source.

Preferably, the density that the LGP 4 of mentioning in the technique scheme arranges site 5 along with and led light source between distance increase and increase.The density of the site 5 that LGP 4 arranges along with and led light source between distance increase and increase, then distance L ED light source is far away, the ray density that led light source distributes is larger; Therefore, the density of the site 5 that LGP 4 arranges in the larger zone of the density of the light that led light source sends is less, and the density of the site 5 that LGP 4 arranges in the less zone of the density of the light that led light source sends is larger, thereby has improved the uniformity of luminance of LED light fixture.

Usually, the connecting portion 2 between LGP 4 and the lampshade 7 is generally positioned at the position that does not hinder led light source illumination.

For ease of passing into of the power line 1 of led light source, above-mentioned lampshade 7 is provided with the guide groove 8 that passes into for power line 1.

In order further to improve the uniformity of LGP 4 leaded lights, improve simultaneously the utilization rate to led light source institute isolychn, the incidence surface of LGP 4 is positioned at LGP 4 tops, and led light source is arranged at the top of LGP 4, and site 5 is arranged at perisporium and the bottom of LGP 4.At this moment, the light emission direction that the LED lamp is sent out points to perisporium and the bottom of LGP 4, and the perisporium of LGP 4 and bottom are equipped with site 5, thereby increased the probability that light that led light source sends runs into site 5, thereby increase light and broken up the probability of refraction, being conducive to light derives as early as possible, has reduced the length of light at LGP 4 inner tracks, thereby increases the utilization rate that LED is emitted beam.

Certainly, for the light that led light source is sent enters LGP 4, the top of LGP 4 is provided with groove, and led light source is installed on the bottom land of groove, and bottom land and cell wall are the incidence surface of LGP 4.The light that led light source sends can be imported by cell wall by the part that bottom land reflects, and has further improved the utilization rate of the light that led light source is sent.

Based on technique scheme, preferably, LGP 4 be shaped as turbination, site 5 is arranged at the taper seat of LGP 4.

In addition, the shape of the LGP 4 of mentioning in the technique scheme can also be for cylindrical, and site 5 is arranged at periphery and the bottom surface of the LGP 4 with cylindrical structural.

Certainly, the shape of LGP 4 can also be other shapes, can guarantee that mainly the uniformity of LED lamp luminescence and the utilization rate of led light source get final product, and give unnecessary details no longer one by one here.

As shown in Figure 2, the another kind of structural representation of the LED light fixture that provides for the utility model of Fig. 2.Further, be to strengthen the brightness of illumination of LED light fixture, lampshade 7 is inner to be arranged the corresponding position of the direction of site 5 with LGP 4 and is provided with prism film 6.The corner angle that arrange on the prism film 6 can increase the convergence of light, thereby improve the brightness of illumination, and then have improved the brightness of illumination of LED light fixture.

Further, the prism film in the technique scheme 6 has double-deck prism.

Preferably, the making material of lampshade 7 is translucent plastic or ground glass.The lampshade 7 of LED light fixture uses translucent plastics or ground glass as seeing through medium, can the light that led light source sends further be dispelled the heat.

And the shape of lampshade 7 can have any shape, and such as cylindrical, cuboid, sphere etc., gives unnecessary details no longer one by one here.

Based on the LED light fixture of mentioning in the technique scheme, its led light source can be selected the LED of different color blocks, can form the illuminating lamp of different colours, satisfies specific (special) requirements.

Obviously, those skilled in the art can carry out various changes and modification to the utility model embodiment and not break away from spirit and scope of the present utility model.Like this, if of the present utility model these are revised and modification belongs within the scope of the utility model claim and equivalent technologies thereof, then the utility model also is intended to comprise these changes and modification interior.

Claims

1. a LED light fixture comprises lampshade; It is characterized in that, also comprise the LGP that is positioned at described lampshade inside and the led light source that is positioned at described LGP incidence surface side; Described LGP is installed on described lampshade by connecting portion; Described LGP is provided with the site.

2. LED light fixture according to claim 1 is characterized in that, the density that described LGP arranges the site along with and described led light source between distance increase and increase.

3. LED light fixture according to claim 2 is characterized in that, the incidence surface of described LGP is positioned at the top of described LGP, and described led light source is arranged at described LGP top, and described site is arranged at perisporium and the bottom of described LGP.

4. LED light fixture according to claim 3 is characterized in that, the top of described LGP is provided with groove, and described led light source is installed on the bottom land of described groove, and described bottom land and cell wall are the incidence surface of described LGP.

5. LED light fixture according to claim 4 is characterized in that, described LGP be shaped as turbination, described site is arranged at the taper seat of described LGP.

6. LED light fixture according to claim 4 is characterized in that, being shaped as of described LGP is cylindrical, and described site is arranged at periphery and the bottom surface of described LGP.

7. each described LED light fixture is characterized in that according to claim 1-6, and described lampshade is inner to be arranged the corresponding position of the direction of site with described LGP and be provided with prism film.

8. LED light fixture according to claim 7 is characterized in that, described prism film has double-deck prism.

9. LED light fixture according to claim 7 is characterized in that, the making material of described lampshade is translucent plastic or ground glass.