CN202140974U

CN202140974U - Anti-dazzling LED (light-emitting diode) lens and lamp

Info

Publication number: CN202140974U
Application number: CN201120196235U
Authority: CN
Inventors: 杨毅博
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-06-13
Filing date: 2011-06-13
Publication date: 2012-02-08
Anticipated expiration: 2021-06-13

Abstract

The utility model discloses an anti-dazzling LED (light-emitting diode) lens and a lamp, which can prevent generation of dazzling and reduce light intensity of local areas. The part of the anti-dazzling LED lens, irradiated by an LED light source, comprises an incidence surface and an emergent surface, wherein the incidence surface or the emergent surface comprises a center diffusion curved surface and a peripheral diffusion curved surface extending all around; the peripheral diffusion curved surface is divided into at least four regions by at least two planes which are intersected at one axis; the intersected axis is coincided with an optical axis of the LED light source; each region consists of a plurality of curved surfaces which are arranged in sequence from the inner side to the outer side of the peripheral diffusion curved surface; the center diffusion curved surface is used for diffusing high-intensity light of a local central part to the surroundings; the peripheral diffusion curved surface is used for diffusing surrounding light to the further step; and light distribution is carried out between each two symmetrical regions; finally, the light becomes uniform and is not dazzling. The LED light of the utility model is the LED lamp of any form comprising the lens.

Description

A kind of anti-glare LED lens and light fixture

Technical field

The utility model relates to a kind of anti-glare LED lens with light fixture.

Background technology

Under the background that the short worry of global energy raises once again; Energy savings is the important problem that we shall face future, and at lighting field, the application of LED luminous product is just attracting common people's sight; LED is as a kind of novel green light source product; Must be developing tendency in future, the 2008 Beijing Olympic Games lets people that LED has been had brand-new understanding to the concentrated displaying of LED illumination, force urges the has been arranged development of Chinese semiconductor lighting industry.Current Chinese semiconductor product sparetime university is not and strong, and core competitiveness still awaits further lifting.The room Design of Luminaires of 21 century will be to be main flow with the LED Design of Luminaires, demonstrates fully the illumination development trend of energy-conservationization, healthization, art up and hommization simultaneously, becomes the leading of room light culture.Research data shows that because LED is a cold light source, self has no pollution to environment semiconductor lighting, compares with incandescent lamp, fluorescent lamp, and electric energy can reach more than 90%.Under same brightness, power consumption is merely 1/10 of ordinary incandescent lamp, 1/2 of fluorescent tube.If replace 50% of our present traditional lighting with LED, the electric weight that annual China saves just is equivalent to the summation of a Three Gorges plant generator amount, and its energy-saving benefit is very considerable.LED lamp DC driven does not have stroboscopic; Do not have infrared and composition ultraviolet, do not have radiation pollution, colour rendering is high and have a very strong light emission direction property; Dimming behavior is good, and colour temperature can not produce the collimation error when changing; The cold light source caloric value is low, can safe touch; These all are that incandescent lamp and fluorescent lamp are inaccessible.It can provide the illumination space of comfortable, can satisfy people's physiological health demand again well, is the healthy light source of vision protection and environmental protection.The little light weight of LED light fixture volume can select for use different photochromic LED to be combined into the soft various modules of illumination, is installed in arbitrarily in the room, and the light source of room lighting possibly derive from ground, metope, windowsill, furniture, jewelry etc.LED is different with traditional illuminating lamp, and it has characteristics such as spot light, high brightness, arrow beam of light output, makees the LED lamp and at first will consider to use effective range of exposures to limited luminous flux fully.Therefore, effectively control the distribution of light, the light that LED is sent evenly distributes at the needs irradiated site, also will take into account the generation of dazzle simultaneously, is the requirements at the higher level to designer's proposition of LED light.

The utility model content

The utility model technical problem to be solved is the deficiency that overcomes prior art, provides a kind of and prevents that dazzle from producing, and reduces the anti-glare LED lens and the light fixture of regional area light intensity.

The technical scheme that the anti-glare LED lens are adopted in the utility model is: said anti-glare LED lens are comprised the plane of incidence and exit facet by the part of led light source irradiation; Comprise center diffusion curved surface on the said plane of incidence or the exit facet and spread curved surface all around to the periphery of extending; Said peripheral diffusion curved surface is divided at least four zones by at least two planes that intersect at an axis; The axis that intersects with the optical axis coincidence of led light source; Each zone is formed by several curved surfaces, and said several curved surfaces are arranged in order from the inboard of said peripheral diffusion curved surface laterally.

As preferred embodiment, said center diffusion curved surface is made up of the curved surface of several compact arranged concave or convexs.

As preferred embodiment, said center diffusion curved surface is a self-existent big inner sunken face or outer convex surface.

As preferred embodiment, said center diffusion curved surface is multi-lamellar corrugated surface.

Further as concrete scheme, said peripheral diffusion curved surface is divided into four zones by two intersecting planes, and two zones that are in contraposition are symmetrical.

Further, said lens are square or circular or other polygons.

The technical scheme that the LED light fixture is adopted in the utility model is: wiring board, led light source and radiator that this light fixture comprises housing, lamp holder and is positioned at enclosure interior; Said anti-glare LED lens cap is located on the said led light source, and said led light source is positioned on the above-mentioned intersection axis.

Further, said light fixture also comprises the reflective mirror that is installed in around the said led light source.

The beneficial effect of the utility model is: owing to comprise center diffusion curved surface on the said plane of incidence or the exit facet and spread curved surface to the periphery of extending all around; Said peripheral diffusion curved surface is divided at least four zones by at least two planes that intersect at an axis; The axis that intersects with the optical axis coincidence of led light source; Each zone is formed by several curved surfaces, and said several curved surfaces are arranged in order from the inboard of said peripheral diffusion curved surface laterally, the light that said center diffusion curved surface can send led light source to around spread; Reduce led light source local light line strength, reduce people's string order impression.And peripheral diffusion curved surface is further broken up light; It is divided at least four zones by at least two intersecting planes; Light through symmetrical two zones one of them the time, can incident ray be diffused into its symmetrical region direction, such four zones will form two diffusion luminous intensity distributions on the vertical direction; Light through four zones forms uniform light distribution effect easily, and the whole LED light fixture looks just as an area source.

Description of drawings

Fig. 1 is the structural representation of LED light fixture in the utility model;

Fig. 2 is the sketch map that the periphery diffusion curved surface in the utility model lens is divided into four zones;

Fig. 3 is the non-sketch map that is divided into four zones of periphery diffusion curved surface in the utility model lens;

Fig. 4 is that the center diffusion curved surface in the utility model lens is the sketch map of an independent curved surface;

Fig. 5 is the sketch map that the periphery diffusion curved surface in the utility model lens is divided into four zones;

Fig. 6 is that the center diffusion curved surface in the utility model lens is the sketch map of multi-lamellar corrugated surface.

The specific embodiment

As shown in Figure 1; Wiring board 4, led light source 2 and radiator 5 that the light fixture that the utility model relates to comprises housing 6, lamp holder 7 and is positioned at housing 7 inside; Said anti-glare LED lens 1 cover on the said led light source 2, and said led light source 2 is positioned on the central axis of above-mentioned lens; Also be equipped with around this external said led light source 2 and improve the reflective mirror 2 of light with rate.

As shown in Figure 2; Above-mentioned anti-glare LED lens 1 comprise the plane of incidence and exit facet; Comprise center diffusion curved surface 101 on the said plane of incidence or the exit facet and spread curved surface 102 (Fig. 2 is the upward view of the lens plane of incidence shown in Fig. 1) all around to the periphery of extending; Peripheral diffusion curved surface 102 is divided into four regional a, b, c, d by two intersecting planes; Each regional incidence surface is provided with some curved surfaces, and said curved surface 1 is inner sunken face or outer convex surface, can be ruled surface and also can be irregular curved surface; Said some curved surfaces from the inboard laterally the edge be arranged in order, and in each zone, the thickness of said lens from the inboard laterally the edge reduce gradually, promptly as can be seen from Figure 1.Four zones among Fig. 2 are four zones dividing equally; The light that is sent by the LED lamp that is positioned at above the central axis passes through regional a and regional c on the plane of incidence; Penetrate by exit facet then, spread towards the direction of symmetrical region respectively, be i.e. two symmetrical region a, the mutual luminous intensity distribution of c by the light of regional a and regional c incident; Form even dazzle-free light, the spread condition of regional b, d is with above-mentioned consistent.So the light that LED sends looks and can not feel dazzling through big area source of said lens formation.

The above-mentioned center diffusion curved surface 101 that is positioned at the lens middle position is made up of the curved surface of several compact arranged concave or convexs; As another embodiment, center diffusion curved surface 101 also can be an independent big inner sunken face or outer convex surface (as shown in Figure 4); As another embodiment, diffusion curved surface 101 in center also can be multi-lamellar corrugated surface, with among above-mentioned zone a, b, c, the d from the inboard curved surface form similar (as shown in Figure 6) that is arranged in order of edge laterally.

Referring to Fig. 3; These anti-glare LED lens are square; Comprise center diffusion curved surface 101 on its plane of incidence equally and spread curved surface 102 all around to the periphery of extending; Be that peripheral diffusion curved surface 102 is not to be divided into four zones, only requires two symmetrical getting final product in zone that are in contraposition with different among Fig. 2.

Referring to Fig. 5; Comprise center diffusion curved surface 101 on this anti-glare LED lens plane of incidence equally and spread curved surface 102 all around to the periphery of extending; But as a kind of expansion, peripheral diffusion curved surface 102 is to be divided into six zones, the crossing axis and the optical axis coincidence of led light source by three planes that intersect at an axis; In each zone be equally by some little curved surfaces from the inboard laterally the edge be arranged in order and form undulatory curve form, and per two zones that are in symmetric position luminous intensity distributions each other; Be appreciated that peripheral diffusion curved surface 102 can also expand to more a plurality of zones that are even number.

Claims

1. anti-glare LED lens; Its part by the led light source irradiation comprises the plane of incidence and exit facet; It is characterized in that: comprise center diffusion curved surface on the said plane of incidence or the exit facet and spread curved surface all around to the periphery of extending; Said peripheral diffusion curved surface is divided at least four zones by at least two planes that intersect at an axis; The axis that intersects with the optical axis coincidence of led light source, each zone is formed by several curved surfaces, said several curved surfaces are arranged in order from the inboard of said peripheral diffusion curved surface laterally.

2. a kind of anti-glare LED lens according to claim 1 is characterized in that: said center diffusion curved surface is made up of the curved surface of several compact arranged concave or convexs.

3. a kind of anti-glare LED lens according to claim 1 is characterized in that: said center diffusion curved surface is independently an inner sunken face or an outer convex surface.

4. a kind of anti-glare LED lens according to claim 1 is characterized in that: said center diffusion curved surface is multi-lamellar corrugated surface.

5. according to claim 1 or 2 or 3 or 4 described a kind of anti-glare LED lens, it is characterized in that: said peripheral diffusion curved surface is divided into four zones by two intersecting planes, and two zones that are in contraposition are symmetrical.

6. a kind of anti-glare LED lens according to claim 1 is characterized in that: said lens are square or circular.

7. light fixture that comprises the described anti-glare LED lens of claim 1; It is characterized in that: the wiring board, led light source and the radiator that comprise housing, lamp holder and be positioned at enclosure interior; Said anti-glare LED lens cap is located on the said led light source, and said led light source is positioned on the above-mentioned intersection axis.

8. a kind of anti-glare LED lens according to claim 7 is characterized in that: said light fixture also comprises the reflective mirror that is installed in around the said led light source.