CN201594553U

CN201594553U - LED illumination structure with good uniform light

Info

Publication number: CN201594553U
Application number: CN2010201053751U
Authority: CN
Inventors: 陈兴
Original assignee: QUANXING DEVELOPMENT SCIENCE AND TECHNOLOGY Co Ltd
Current assignee: QUANXING DEVELOPMENT SCIENCE AND TECHNOLOGY Co Ltd
Priority date: 2010-01-28
Filing date: 2010-01-28
Publication date: 2010-09-29
Anticipated expiration: 2020-01-28

Abstract

An LED illumination structure with good uniform light comprises an LED package and a lens. The lens has a convex surface and a bottom surface relative to the convex surface, and the bottom surface is a non-flat surface and fixed on the irradiation surface of the LED package. The emitted light of the LED package is emitted out through the non-flat surface of the lens to generate uniform light and light condensing effects, thereby obtaining more uniform illumination.

Description

The LED lighting structure of the preferable even light of tool

Technical field

The utility model is meant the LED lighting structure of the preferable even light of a kind of tool, refers in particular to a kind of even light effect that produces, and more can improve LED illumination.

Background technology

Lighting apparatus is a daily necessities indispensable in the daily life, changed people's life style, now in general family or the public's indoor scenarios, all can see and use lighting apparatus miscellaneous, for example: fluorescent lamp, illuminating lamp, desk lamp, pendent lamp, neon light or the like, can be improved by lighting apparatus for the dim inconvenience that brings.

For different lighting apparatus, the purposes of its application also has difference, for example: general fluorescent lamp, illuminating lamp, desk lamp ... etc., it is for the use of general lighting, and the lighting apparatus that some special purposes are also arranged for example: night-light, be and be applied to the illumination that people are provided when sleeping, its luminous power is lower, only is auxiliary usefulness.

Known fluorescent tube or bulb have quick heating and the high shortcoming of power consumption, and light fixture can cause the problem of environmental protection after discarded, therefore, just develop in recent years and that (Light EmittingDiode is LED) as the technology of light emitting source with light-emitting diode.

Power consumption is low though light-emitting diode has, assembly life-span is long, need not warm up advantages such as lamp time and reaction speed be fast, but general light-emitting diode more known bulb of its brightness of being sent or fluorescent tube are low, therefore are to adopt high-power light-emitting diode to be used as lighting source.Though High Power LED can provide comparatively higher brightness, but its angle of departure of high-capacity LED package assembling is all very about about 150 ° at present, then must use lens focus to dwindle angle as sending out smaller angle as 90 °, but directly adding from 150 °, the general LED angle of divergence can produce photochromic uneven phenomenon when lens shorten 90 ° into, as the blue partially peripheral yellow partially phenomenon in centre, therefore how to make the LED illumination have better even optical illumination effect, real is the important topic of industry technological development.

Known a kind of LED packaging structure sees also Fig. 1 and Fig. 2, and it includes a substrate 11; One led chip 12 is arranged on the substrate 11; And fluorescence coating 13 is coated led chip 12 tops; One lens 10 are arranged at phosphor powder layer 13 tops.Can come fluorescence excitation bisque 13 by the emission light of led chip 12, and produce the white light of required color, come out via lens 10 focused transmission again.

Yet, phosphor powder layer 13 can be uniformly coated on the LED grain surface because of a glue mode can't effectively make phosphor powder layer in practice, thereby the even phenomenon of generation crawling, so that the light that irradiates can produce photochromic uneven phenomenon, produce sometimes the blue partially edge of central point yellow partially if more in addition lens finish disappearances such as the easier generation of low-angle edge yellow circle phenomenon.

The utility model content

The purpose of this utility model is to provide the LED lighting structure of the preferable even light of a kind of tool, and it has the effect of even light, to reach the purpose that improves illumination uniformity.

For achieving the above object, the LED packaging structure of the preferable even light of tool that the utility model provides, it includes:

One LED packaging body, it has a light and penetrates face; And

One lens, it has a protruding face and a bottom surface, and the bottom surface is a non-smooth surface, and the light that is fixed in this LED packaging body is penetrated on the face.

The LED packaging structure of the preferable even light of described tool, wherein the bottom surface of these lens is a uneven whole surface.

The LED packaging structure of the preferable even light of described tool, wherein the bottom surface of these lens is an atomization surface.

LED packaging structure of the present utility model, emission light can produce spotlight effect through protruding face, and can obtain better uniform illuminance via the non-smooth surface of lens after homogenizing penetrate again.

Description of drawings

Fig. 1 is the cutaway view of known lens.

Fig. 2 is the cutaway view of known LED encapsulation structure body and lens combined structure.

Fig. 3 is the cutaway view of LED new type lens structure of the LED lighting structure of the preferable even light of the utility model tool.

Fig. 4 is the view sub-anatomy of the LED lighting structure of the preferable even light of the utility model tool.

Fig. 5 is the assembled sectional view of the LED lighting structure of the preferable even light of the utility model tool.

Primary clustering symbol description in the accompanying drawing:

LED packaging body 30, substrate 31, led chip 32, phosphor powder layer 33, light are penetrated face 34, lens 10, new type lens 20, protruding face 21, bottom surface 22.

Embodiment

The utility model includes a LED packaging body and a new type lens, and this LED packaging body has a surface of emission; And a new type lens, it has a protruding face and with respect to the bottom surface of this protruding face, this bottom surface is a non-smooth surface, and is fixed on the shadow surface of this LED packaging body.

Below describe conjunction with figs. and embodiment in detail execution mode of the present utility model, thus to the utility model how the application technology means implementation procedure that solves technical problem and reach the technology effect can fully understand and implement according to this.

Please refer to Fig. 3 and Fig. 4 and shown in Figure 5, be the LED lighting structure of the preferable even light of the utility model tool, it includes a LED packaging body 30 and a new type lens 20.Wherein:

LED packaging body 30 includes a substrate 31, a led chip 32 is positioned on the substrate 31, reaches phosphor powder layer 33 and coats on the led chip 32, makes LED packaging body 30 form a light and penetrates face 34.And

The another side that new type lens 20 has a protruding face 21 and corresponds to protruding face 21 is bottom surface 22 non-smooth surfaces, is uneven surface or atomization surface in the present embodiment, is fixed on the light emitting surface of LED packaging body 30.

The emission light of LED packaging body 30 can via bottom surface 22 non-smooth surfaces of new type lens 20 with produce astigmatic effect be even light again via protruding face 21 optically focused of new type lens 20, and can obtain better illumination.

Though the described execution mode of the utility model as above, only described content is not in order to direct qualification protection range of the present utility model.Those skilled in the art are not breaking away under the spirit and scope prerequisite of the present utility model, can do a little change what implement in form and on the details.The content that protection range of the present utility model still must be defined with the claim scope of application is as the criterion.

Claims

1. the LED packaging structure of the preferable even light of tool is characterized in that, includes:

One LED packaging body, it has a light and penetrates face; And

2. the LED packaging structure of the preferable even light of tool as claimed in claim 1 is characterized in that, the bottom surface of these lens is a uneven whole surface.

3. the LED packaging structure of the preferable even light of tool as claimed in claim 1 is characterized in that, the bottom surface of these lens is an atomization surface.