CN201836811U

CN201836811U - Integrated high-power LED lens

Info

Publication number: CN201836811U
Application number: CN2010205900418U
Authority: CN
Inventors: 宋春发; 李林春; 张明
Original assignee: Sichuan Sunfor Light Co Ltd
Current assignee: Sichuan Sunfor Light Co Ltd
Priority date: 2010-11-03
Filing date: 2010-11-03
Publication date: 2011-05-18
Anticipated expiration: 2020-11-03

Abstract

The utility model provides an integrated high-power LED lens used for large light-emitting area. The integrated high-power LED lens comprises a light incidence surface and a light outgoing surface which are polynomial aspheric surfaces, wherein the coefficient of the curved surface of the light incidence surface is that: K is equal to -4.5-(-5.5), and R is equal to 14-18mm; and the coefficient of the curved surface of the light outgoing surface is that: K is equal to -3.6-(-4.2), and R is equal to 1.5-1.7mm. In the utility model, due to the reasonable shapes of the incidence surface and the light outgoing surface of the lens, the purpose that the emergent ray of a heavy-caliber LED is collected can be achieved, and the utilization rate of light energy and the uniformity of the illumination intensity of the irradiated surface can be greatly improved. The lens can be widely applicable to projection lamps such as a mine lamp, an underground lamp, an underwater lamp and the like.

Description

The integrated high power LED lens

Technical field

The utility model relates to a kind of LED lens, particularly relates to a kind of lens that are used for integrated high power LED.

Background technology

LED compares that conventional light source has the luminous efficiency height, colour rendering is good, power consumption is few, the advantage of energy-conserving and environment-protective, security reliability height, long service life, and be used widely in each field, thought the main direction in lighting source market to have huge market potential by industry.But, because integrated high power LED does not carry out the once light-distribution design, therefore in actual applications, normal fit lens reaches required brightness, illumination and uniformity requirement, but also not at the lens of the big integrated high power LED of light-emitting area, particularly the LED light-emitting area is greater than the lens of 16X16 millimeter at present.

The utility model content

Technical problem to be solved in the utility model provides a kind of lens that are used for the big integrated high power LED of light-emitting area.

The technical scheme that the utility model technical solution problem is adopted is: the integrated high power LED lens, comprise incidence surface and exiting surface, described incidence surface, exiting surface are the multinomial aspheric surface, wherein, the curved surface coefficient of described incidence surface is: K=-4.5～-5.5, R=14～18mm; The curved surface coefficient of described exiting surface is: K=-3.6～-4.2, R=1.5～1.7mm.

The beneficial effects of the utility model are: the shape of incidence surface and exiting surface by rational lens reaches the purpose of the emergent ray of collecting heavy caliber LED, and can significantly improve the utilization rate of luminous energy and by the uniformity according to surperficial illumination.Lens of the present utility model can be widely used in floodlights such as mine lamp, underground lamp, underwater lamp.

Description of drawings

Fig. 1 is a front view of the present utility model.

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

Fig. 3 is the side view of Fig. 1.

Fig. 4 is the cutaway view of front view of the present utility model.

Fig. 5 is a stereogram of the present utility model.

Fig. 6 is curve of light distribution figure of the present utility model.

The specific embodiment

As Fig. 1-shown in Figure 5, integrated high power LED lens of the present utility model, comprise incidence surface 1, exiting surface 2 and bottom surface 3, described incidence surface 1 is positioned at the middle part of bottom surface 3, described incidence surface 1 and exiting surface 2 are the multinomial aspheric surface, and wherein, the curved surface coefficient of incidence surface 1 is: K=-4.5～-5.5, R (half warp, as follows)=14～18mm; The curved surface coefficient of exiting surface 2 is: K=-3.6～-4.2, R=1.5～1.7mm.

The above-mentioned LED lens of being made up of incidence surface 1, exiting surface 2 and bottom surface 3 are arranged on the support 3, the LED lens also can adopt integrative-structure with support 3, LED installed surface and lens installed surface 4 are positioned at same plane, and support 3 both sides are provided with screw, are used for fixing on pcb board or heat abstractor.

Lens of the present utility model can use incidence surface to be of a size of the integrated high power LED of 22X22 millimeter, 22X16 millimeter or 16X16 millimeter.

Lens of the present utility model can adopt PMMA, PC or glass material to make.

When lens projects distance of the present utility model was 10 meters, the projection scope was that radius is 6 meters a circle.In projected area illuminance uniformity＞0.6.

Fig. 6 is curve of light distribution figure of the present utility model.It has reflected that light that LED sends is after lens refraction of the present utility model, shape at the pairing light intensity in different beam angles position and the curve of light distribution, among the figure, concentric ring is represented the size of light intensity, homocentric rays is represented the irradiating angle of light, after two curves among the figure represent that respectively light is through the lens refraction, along irradiating angle, zone and the corresponding light intensity of road vertical and horizontal.

What Fig. 1-Fig. 5 showed is mine lamp, and the utility model also can be widely used in floodlights such as underground lamp, underwater lamp.

Claims

1. integrated high power LED lens, comprise incidence surface (1) and exiting surface (2), it is characterized in that: described incidence surface (1), exiting surface (2) are the multinomial aspheric surface, wherein, the curved surface coefficient of described incidence surface (1) is: K=-4.5～-5.5, R=14～18mm; The curved surface coefficient of described exiting surface (2) is: K=-3.6～-4.2, R=1.5～1.7mm.

2. integrated high power LED lens as claimed in claim 1 is characterized in that: also comprise bottom surface (3), described incidence surface (1) is positioned at the middle part of bottom surface (3).

3. integrated high power LED lens as claimed in claim 2 is characterized in that: also comprise support (3), integrative-structure is adopted with support (3) in described incidence surface (1), exiting surface (2), bottom surface (3).