CN201535478U

CN201535478U - LED lens

Info

Publication number: CN201535478U
Application number: CN2009202365777U
Authority: CN
Inventors: 洪作财
Original assignee: Living Style Enterprises Ltd
Current assignee: Living Style Enterprises Ltd
Priority date: 2009-09-29
Filing date: 2009-09-29
Publication date: 2010-07-28
Anticipated expiration: 2019-09-29

Abstract

The utility model relates to the technical field of lenses, in particular to an LED lens, which comprises a lens body, wherein the lens body consists of an incidence end and a reflection end which are integrally shaped, the surface of the reflection end is a curve, the surface of the incidence end is a plane, and the section curve of the surface of the reflection end is a parabolic curve. The LED lens can form different shapes of light spots and ideal light gathering effect according to requirements.

Description

A kind of LED lens

Technical field:

The utility model relates to the lens technologies field, particularly a kind of LED lens.

Background technology:

Because advantages such as led light source has efficiently, safety, energy-saving and environmental protection, the life-span is long, response speed is fast have been widely used in the illumination of occasions such as urban road, dwelling house, office space, public place at present.

Led light source needs the cooperated with LED lens to carry out optically focused and leaded light, distribution curve flux according to the different LED lens of the light angle design of different led light sources, to promote lighting effect, as publication number is the Chinese patent of CN101329033, it discloses a kind of LED road lamp light distribution lens, it comprises an inner surface and an outer surface, described inner surface is a hemisphere face, described outer surface is a curved surface, the lens peak light intensity of these LED lens is luminous intensity distribution in a predetermined angular γ, most preferred embodiment is at ± 60 ° of left and right sides luminous intensity distributions, i.e. γ=60 °; This LED lens can reduce the luminous intensity of street lamp middle part, make luminous intensity distribution more even in described predetermined angular range, thereby make illumination patterns whole on the road surface even.Yet this LED lens can't form different light spot shapes as requested, and spotlight effect is not ideal enough.

The utility model content:

The purpose of this utility model is that providing a kind of at the deficiencies in the prior art can form different light spot shapes and the desirable LED lens of spotlight effect as requested.

For achieving the above object, the utility model adopts following technical scheme: a kind of LED lens, it comprises lens body, lens body comprises integrated incident end and refraction end, the surface of described refraction end is a curved surface, the surface of incident end is the plane, and the cross section curve of described refraction end surfaces is a parabola.

Described parabolical expression formula is y ²=ax, wherein a value is 0.5.

The surface of described incident end is a circular flat.

The surface of described incident end is an elliptic plane.

The surface of described incident end is a square planar.

The side of described lens body is provided with boss.

The utility model beneficial effect is: a kind of LED lens described in the utility model, its lens body comprise integrated incident end and refraction end, and the surface of refraction end is a curved surface, and the surface of incident end is the plane, and the cross section curve of refraction end surfaces is a parabola; Adopt the LED lens of said structure, go out from the refraction end-fire again after the light of led light source is gone into from the incident end-fire,, can make that spotlight effect is better because the cross section curve of refraction end surfaces is a parabola; In addition, this integrated LED lens can be processed into different shapes as requested, thereby form difform hot spot, enlarge the range of application of LED lens effectively.

Description of drawings:

Fig. 1 is the structural representation of the utility model embodiment one;

Fig. 2 is the vertical view of the utility model embodiment one;

Fig. 3 is the A-A cutaway view of Fig. 2;

Fig. 4 is the structural representation of the utility model embodiment two;

Fig. 5 is the vertical view of the utility model embodiment two;

Fig. 6 is the B-B cutaway view of Fig. 5.

The specific embodiment:

Below in conjunction with accompanying drawing the utility model is further described:

Embodiment one, see that Fig. 1 is to shown in Figure 3, a kind of LED lens, it comprises lens body 1, and lens body 1 comprises integrated incident end 2 and refraction end 3, and the surface of described refraction end 3 is a curved surface, the surface of incident end 2 is the plane, described refraction holds the cross section curve 5 on 3 surfaces to be parabola, because the cross section curve 5 on refraction end 3 surfaces be a parabola, the distribution curve flux of this parabolic makes to have better spotlight effect behind the light process LED lens of led light source.

As preferred implementation, in the present embodiment, described parabolical expression formula is y ²=ax, wherein a value is 0.5, certainly, can obtain different spotlight effect when a gets other value, therefore can choose a value as required.

Further, in the present embodiment, the side of described lens body 1 is provided with boss 4, and when the LED lens were installed, boss 4 played the fixing effect of setting-in.

The structure because a kind of LED lens described in the utility model are formed in one, it can be processed into the lens of arbitrary shape as requested, and the light spot shape of its light that sheds is identical with the shape of processing rear lens.In the present embodiment, the surface of described incident end 2 is a circular flat, is about to the LED lens and is processed into round lens, and the light spot shape of its light that sheds is for circular.

Embodiment two, see Fig. 4 to shown in Figure 6, and its difference with embodiment one is that the surface of described incident end 2 is an elliptic plane, are about to the LED lens and are processed into oval lens, and the light spot shape of its light that sheds is ellipse.Certainly, if the surface of incident end 2 is a square planar, is about to the LED lens and is processed into square lens, the light spot shape of its light that sheds will be for square.Same, if the LED lens are processed into the lens of other shape, the light spot shape of its light that sheds is identical with the shape of processing rear lens, and is like this, can enlarge the range of application of LED lens effectively.

The above only is a better embodiment of the present utility model, so all equivalences of doing according to the described structure of the utility model patent claim, feature and principle change or modify, is included in the utility model patent claim.

Claims

1. LED lens, it comprises lens body (1), it is characterized in that: lens body (1) comprises integrated incident end (2) and refraction end (3), the surface of described refraction end (3) is a curved surface, the surface of incident end (2) is the plane, and the cross section curve (5) on described refraction end (3) surface is a parabola.

2. a kind of LED lens according to claim 1 is characterized in that: described parabolical expression formula is y ²=ax, wherein a value is 0.5.

3. a kind of LED lens according to claim 2 is characterized in that: the surface of described incident end (2) is a circular flat.

4. a kind of LED lens according to claim 2 is characterized in that: the surface of described incident end (2) is an elliptic plane.

5. a kind of LED lens according to claim 2 is characterized in that: the surface of described incident end (2) is a square planar.

6. according to each described a kind of LED lens of claim 1 to 5, it is characterized in that: the side of described lens body (1) is provided with boss (4).