CN201391831Y

CN201391831Y - Reflection-type astigmatic composite structure for large power light-emitting diode light source

Info

Publication number: CN201391831Y
Application number: CN200920135788U
Authority: CN
Inventors: 刘永光; 王保宪; 吕卫京
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-03-18
Filing date: 2009-03-18
Publication date: 2010-01-27
Anticipated expiration: 2019-03-18

Abstract

The utility model relates to a reflection-type astigmatic composite structure for large power light-emitting diode light source, which is provided with a plural of single holes for reflecting light rays, wherein the inner portions of the single holes are of reverse taper shape from the opening to the bottom, and the single holes are arranged closely and symmetrically on a plane surface to form a reflection-type astigmatic surface, and the inner surfaces of the single holes are provided with a plurality layers of arc diffuse reflection surfaces which are distributed laminatedly. In the reflection-type astigmatic composite structure of the utility model, the light rays form relative reflection, the light rays are repeatedly refracted and led to the light projector direction by the reverse taper and multiple-layer arc diffuse reflection surfaces, thus the illumination uniformity is enhanced, the reverse taper surface angle can control the irradiation angle of light source according to the needed illuminating height and distance, thereby enhancing light utilization ratio, moreover, compared with irradiating distance and an light-emitting diode light source with same power, the reflection-type astigmatic composite structure of the utility model has better multiple-layer reflecting astigmatic effect and can enhance the uniformity and light utilization ratio of the large power light-emitting diode light source in the irradiating light spot.

Description

The reflective astigmatic combining structure that is used for high-power LED light source

Technical field

The utility model relates to led light source, particularly a kind of reflective astigmatic combining structure that is used for high-power LED light source.

Background technology

Present high-power LED light source be encapsulated as spherical structure, illumination angle is between 70 ° to 150 °, when being applied to the high-power illumination field, generally adopts plurality of LEDs light source matrix formula assembled arrangement.Because LED is spot light (wafer is 1.5mm only), center brightness is higher, and the uniformity is relatively poor in the irradiates light macular area, and effectively the light utilization is lower.

The utility model content

The purpose of this utility model is to provide a kind of reflective astigmatic combining structure that is used for high-power LED light source, improves the uniformity and light utilization efficiency in the high-power LED light source irradiates light macular area.

For achieving the above object, the utility model provides a kind of reflective astigmatic combining structure that is used for high-power LED light source, it is characterized in that, it has some single holes that are used for reflection ray, the inside of described single hole is back taper by its opening to its bottom, planar closely symmetric arrays is to form reflective astigmatic face for those single holes, and the inner surface of described single hole is provided with the several layers arc diffuse surface of stacked distribution.

Wherein, those single holes are the matrix form arrangement to form the rectangular reflective astigmatism plate.

Wherein, described single hole is arranged according to 2 * 2,2 * 4,2 * 7,3 * 3,3 * 4 or 3 * 6 matrixes, perhaps or by the permutation and combination of any amount arranges.

Wherein, the opening of described single hole is rectangle, polygon or circle.

Wherein, described single hole inner surface is provided with three layers of arc diffuse surface at least.

Wherein, the angle of described back taper (angles of the relative two sides of taper) is between 60 ° to 160 °.

Wherein, described single hole inner surface is provided with three to 16 layers of arc diffuse surface.

Wherein, it is with the integrated structure of injection moulding mode.

Wherein, the inner surface electrostatic spraying of described single hole has highly reflective coatint.

In sum, light forms relative reflection in the reflective astigmatic combining structure of the present utility model, and back taper and multilayer arc diffuse surface return birefringence with light and the light projector direction that leads, and improves the illumination uniformity; Back taper face angle can be according to the height and distance of illumination needs, and control light source irradiating angle is to improve light utilization efficiency; The led light source of equal-wattage and range dispose reflective astigmatic combining structure of the present utility model and have reflection multilayer astigmatism effect preferably, improve the uniformity and light utilization efficiency in the high-power LED light source irradiates light macular area.

For further setting forth the utility model is technological means and the effect that the predetermined purpose of realization is taked, see also following about detailed description of the present utility model and accompanying drawing, believe the purpose of this utility model, feature and characteristics, should obtain thus going deep into and concrete understanding, yet accompanying drawing only provides reference and explanation usefulness, is not to be used for the utility model is limited.

Description of drawings

Below in conjunction with accompanying drawing,, will make the technical solution of the utility model and other beneficial effects apparent by the specific embodiment of the present utility model is described in detail.

In the accompanying drawing,

Fig. 1 is used for the vertical view of reflective astigmatic combining structure one preferred embodiment of high-power LED light source for the utility model;

Fig. 2 is the cross-sectional view along C-C among Fig. 1;

Fig. 3 is the cross-sectional view along A-A among Fig. 1;

Fig. 4 is the cross-sectional view along B-B among Fig. 1;

Fig. 5 is used for the upward view of reflective astigmatic combining structure one preferred embodiment of high-power LED light source for the utility model;

Fig. 6 is the cross-sectional view along D-D among Fig. 5;

Fig. 7 is used for the stereogram of reflective astigmatic combining structure one preferred embodiment of high-power LED light source for the utility model;

Fig. 8 is the local structure for amplifying schematic diagram corresponding to Fig. 2.

The specific embodiment

Consult Fig. 1, Fig. 5 and Fig. 7, Fig. 1 is used for the vertical view of reflective astigmatic combining structure one preferred embodiment of high-power LED light source for the utility model, and Fig. 5 is its upward view, and Fig. 7 is its stereogram; Consult Fig. 2, Fig. 3, Fig. 4 and Fig. 6, Fig. 2 is the cross-sectional view along C-C among Fig. 1, and Fig. 3 is the cross-sectional view along A-A among Fig. 1, and Fig. 4 is the cross-sectional view along B-B among Fig. 1, and Fig. 6 is the cross-sectional view along D-D among Fig. 5; In this preferred embodiment, 9 single holes 1 that are used for reflection ray planar with the tight symmetric arrays of 3 * 3 matrix forms to form rectangular reflective astigmatism plate 2, the inside of single hole 1 is back taper by its opening to its bottom, and the inner surface of single hole 1 is provided with four layers of arc diffuse surface 3 of stacked distribution.

Single hole 1 also can be arranged according to 2 * 2,2 * 4,2 * 7,3 * 4 or 3 * 6 equal matrix, perhaps or by the permutation and combination of any amount arrange, except that can being arranged in rectangular reflective astigmatism plate 2, also can be arranged in the reflective astigmatic face of other symmetry, as circle, polygon etc.As shown in Figure 1, the opening of single hole 1 is a rectangle, and it also can be shapes such as polygon or circle.Single hole 1 inner surface can be provided with three to 16 layers of arc diffuse surface, light is returned birefringence and the light projector direction that leads, and improves the illumination uniformity.The angle of single hole 1 formed back taper (angles of the relative two sides of taper) can be between 60 ° to 160 °, can be according to the height and distance of illumination needs, and control light source irradiating angle is to improve light utilization efficiency.Rectangular reflective astigmatism plate 2 can adopt injection mo(u)lding, and leaves locating hole 4 at its edge, thereby can be with a plurality of single hole 1 integrated moldings, production efficiency height.As shown in Figure 8, it is the local structure for amplifying schematic diagram corresponding to Fig. 2, thereby can be observed the arcuate structure of arc diffuse surface 3, light can be returned birefringence and the light projector direction that leads, and improve the astigmatic effect of reflection by inner surface electrostatic spraying highly reflective coatint at single hole 1.

The above; for the person of ordinary skill of the art; can make other various corresponding changes and distortion according to the technical solution of the utility model and technical conceive, and all these changes and distortion all should belong to the protection domain of the utility model accompanying Claim.

Claims

1, a kind of reflective astigmatic combining structure that is used for high-power LED light source, it is characterized in that, it has some single holes that are used for reflection ray, the inside of described single hole is back taper by its opening to its bottom, planar closely symmetric arrays is to form reflective astigmatic face for those single holes, and the inner surface of described single hole is provided with the several layers arc diffuse surface of stacked distribution.

2, the reflective astigmatic combining structure that is used for high-power LED light source as claimed in claim 1 is characterized in that, those single holes are matrix form and arrange to form the rectangular reflective astigmatism plate.

3, the reflective astigmatic combining structure that is used for high-power LED light source as claimed in claim 2 is characterized in that, described single hole is arranged according to 2 * 2,2 * 4,2 * 7,3 * 3,3 * 4 or 3 * 6 matrixes.

4, the reflective astigmatic combining structure that is used for high-power LED light source as claimed in claim 1 is characterized in that, the opening of described single hole is rectangle, polygon or circle.

5, the reflective astigmatic combining structure that is used for high-power LED light source as claimed in claim 1 is characterized in that, described single hole inner surface is provided with three layers of arc diffuse surface at least.

6, the reflective astigmatic combining structure that is used for high-power LED light source as claimed in claim 1 is characterized in that, the angle of described back taper is between 60 ° to 160 °.

7, the reflective astigmatic combining structure that is used for high-power LED light source as claimed in claim 1 is characterized in that, described single hole inner surface is provided with three to 16 layers of arc diffuse surface.

8, the reflective astigmatic combining structure that is used for high-power LED light source as claimed in claim 1 is characterized in that, it is with the integrated structure of injection moulding mode.

9, as the arbitrary described reflective astigmatic combining structure that is used for high-power LED light source of claim 1 to 8, it is characterized in that the inner surface electrostatic spraying of described single hole has highly reflective coatint.