CN202955646U

CN202955646U - Anti-dazzle and speckle-free LED (light-emitting diode) lens

Info

Publication number: CN202955646U
Application number: CN2012206621492U
Authority: CN
Inventors: 洪宽; 余建水
Original assignee: ZHEJIANG ZHONGBO LIGHTING TECHNOLOGY CO LTD
Current assignee: ZHEJIANG ZHONGBO LIGHTING TECHNOLOGY CO LTD
Priority date: 2012-12-05
Filing date: 2012-12-05
Publication date: 2013-05-29
Anticipated expiration: 2022-12-05

Abstract

The utility model discloses an anti-dazzle and speckle-free LED (light-emitting diode) lens, wherein the external surface of the LED lens is a ball coronary free-form surface for light distribution, the center of the external surface is concave inwards, a plane vertical to press plate steps of the LED lens is arranged at the side of the external surface, the plane and the press plate steps are intersected with each other, a concave trumpet-shaped curved surface is arranged on the other surface of the LED lens opposite to the external surface, a trumpet opening of the trumpet-shaped curved surface is opposite to the plane, convex corrugated lines are arranged on the trumpet-shaped curved surface at intervals, and all the corrugated lines are respectively parallel to the plane. The anti-dazzle and speckle-free LED lens has a simple structure and reasonable design, is convenient to realize and use and operate, has a wide application range, is anti-dazzling, speckle-free and uniform in light distribution, is low in cost, overcomes the defects in the prior art that the existing LED lamp is dazzling and has speckle and the like, has good use effect, and is convenient to popularize and use.

Description

A kind of anti-dazzle with without hot spot LED lens

Technical field

The utility model relates to a kind of LED lens, especially relate to a kind of anti-dazzle with without hot spot LED lens.

Background technology

Be accompanied by improving constantly of China's urban construction fast development and living standards of the people, city illumination and room lighting cause also begin flourish, in recent years, the New Times of lighting engineering revolution has been opened up in the development of LED technology, because LED has the advantages such as volume is little, life-span length, electric light high efficiency, environmental protection and energy saving, so that the LED lighting engineering is obtaining rapidly development.Particularly owing to be used for that the road lighting area is large, luminous intensity is high, the high light that sends is directly injected human eye can produce dazzle and hot spot, interferes with human pilot to the obtaining and disposing of vehicle, traffic information, and brings out traffic accident.Therefore, in road lighting, eliminate particularly important that dazzle and hot spot interference show.Traditional method is roughly:

1. adopt the method for the brightness that reduces light source, but this scheme can reduce illuminance, affects illuminating effect;

2. change the bright darkness of surrounding environment, this method is not easy to realize;

3. adjust the position etc. of light source and improve dazzle and hot spot, for roadway lighting LED lamp, because problems such as building heights, this scheme is all inapplicable in a lot of occasions.

The utility model content

Technical problem to be solved in the utility model is for the deficiency in the above-mentioned technology, provide a kind of anti-dazzle with without hot spot LED lens.

For solving the problems of the technologies described above, technical scheme of this applicable novel employing is: the utility model anti-dazzle with without the outer surface of the hot spot LED lens free form surface for the spherical crown shape that is used for luminous intensity distribution, and the center at the top of outer surface is inner concavity, the sidepiece of outer surface be provided with one with the perpendicular plane of the pressing plate step of described LED lens, described plane and pressing plate step are crossing; Described LED lens be provided with the horn-like curved surface that is concave shaped with the opposing another side of outer surface, the horn mouth of described horn-like curved surface is relative with described plane, on described horn-like curved surface the compartment of terrain be provided with the projection wavy lines, each wavy lines respectively with described plane parallel.

The utility model compared with prior art has the following advantages:

(1) the utility model is simple in structure, and is reasonable in design, easy to make.

When (2) the utility model being applied on the LED street lamp, the LED lens are placed on directly over the light source, and consist of the LED module after fixing with pressing plate, then the LED module is placed on the flat board simply and can consists of whole lamp.This LED street lamp is fairly simple aspect frame for movement, heat radiation, power supply control, and the LED power that the road lighting of different brackets highway and different pole height only need to increase varying number gets final product, and uses simple operation, and is applied widely.

(3) curved surface of the large scale indent of the utility model spot light that high-power integrated packaging LED can be sent and lens coincides, and realizes scattering and the refraction of led light source, has realized that the light of road uniform distributes, and basically can not produce dazzle and hot spot.

(4) realization cost of the present utility model is low, and good practical effect is convenient to promote the use of.

To sum up, the utility model is simple in structure, and is reasonable in design, and it is convenient to realize, use simple operation, applied widely, realized that light distributes comparatively uniformly, basically can not produce dazzle and hot spot, the realization cost is low, solved in the prior art LED street lamp and produced easily defective and the deficiencies such as dazzle, hot spot, illumination patterns be inhomogeneous, result of use is good, is convenient to promote.

Description of drawings

Fig. 1 is structural representation of the present utility model;

Fig. 2 is the upward view of Fig. 1;

1-free form surface, the center at the top of 2-outer surface, 3-plane, 4-pressing plate step, 5-horn-like curved surface, 6-wavy lines, 7-horn mouth.

The specific embodiment

As depicted in figs. 1 and 2, on the one hand, the outer surface of the utility model LED lens is for being used for the free form surface 1 of luminous intensity distribution.Free form surface 1 integral body is the spherical crown shape, and 2 at the center at the top of outer surface is inner concavity, and the sidepiece of outer surface also be provided with one with the perpendicular plane 3 of the pressing plate step 4 of LED lens, and intersect with pressing plate step 4 on plane 3.On the other hand, the utility model LED lens be provided with the horn-like curved surface 5 that is concave shaped with the opposing another side of outer surface, the horn mouth 7 of horn-like curved surface 5 and plane 3 over against; Further, also be provided with protruding wavy lines 6 in the compartment of terrain at horn-like curved surface 5, each wavy lines is parallel with the plane 3 on the outer surface respectively.The utility model is simple in structure, and is reasonable in design, and it is convenient to realize.

The utility model LED lens are used when LED lamp (especially LED street lamp) is upper, the LED lens are placed on directly over the light source, and consist of the LED module after fixing with pressing plate, then the LED module is placed on the flat board simply and can consists of whole lamp.This LED street lamp is fairly simple aspect frame for movement, heat radiation, power supply control, and the LED power that the road lighting of different brackets highway and different pole height only need to increase varying number gets final product.The wavy lines 6 of the projection that the light that led light source sends arranges through the interval, after Multi reflection, refraction, scattering and diffusion, so that light disperses more with even, and then scatter to the horn-like curved surface 5 of concave shaped, and then incide in the lens, final luminous intensity distribution through free form surface 1 is gone out divergence of beam, thereby finishes the luminous intensity distribution to led light source.Thus, the utility model LED lens have not only effectively been realized free from glare and without hot spot, also can have been realized the even distribution of light.

It below only is preferred embodiment of the present utility model; be not that the utility model is done any restriction; every any simple modification, change and equivalent structure of above embodiment being done according to the utility model technical spirit changes, and all still belongs to the protection domain of technical solutions of the utility model.

Claims

An anti-dazzle with without hot spot LED lens, it is characterized in that: the outer surface of described LED lens is the free form surface (1) that is used for the spherical crown shape of luminous intensity distribution, and the center at the top of outer surface (2) are inner concavity, the sidepiece of outer surface be provided with one with the perpendicular plane (3) of the pressing plate step (4) of described LED lens, described plane and pressing plate step (4) are crossing; Described LED lens be provided with the horn-like curved surface (5) that is concave shaped with the opposing another side of outer surface, the horn mouth of described horn-like curved surface (5) is relative with described plane (3), be provided with the wavy lines (6) of projection in the upper compartment of terrain of described horn-like curved surface (5), each wavy lines is parallel with described plane (3) respectively.