CN202902148U

CN202902148U - Condensing lens of light-emitting diode (LED) integrated optical source

Info

Publication number: CN202902148U
Application number: CN2012204202032U
Authority: CN
Inventors: 彭志奇
Original assignee: SHENZHEN UPLENS OPTOELECTRONICS CO Ltd
Current assignee: SHENZHEN UPLENS OPTOELECTRONICS CO Ltd
Priority date: 2012-08-23
Filing date: 2012-08-23
Publication date: 2013-04-24
Anticipated expiration: 2022-08-23

Abstract

The utility model discloses a condensing lens of a light-emitting diode (LED) integrated optical source. The condensing lens comprises a transparent lens outer shell and a space which is used for internally placing an optical source in the lens outer shell. The whole body of the outer shell rotates in a aspheric surface and hyperbolic curve mode to form a bowl-shaped body, a space which is used for placing of the optical source is arranged at the bottom of the bowl-shaped body, a first surface and a second surface are arranged inside the bowl-shaped outer shell, the first surface which is directly formed by the outer shell inwards is directly connected with the outer shell in a joint mode, an inner hole is formed in the right center of the first surface in an invagination mode, the second surface is arranged in the inner hole, and the standard of the first surface is lower than that of the second surface. Scales of an outer layer of the lens outer shell are matched with a subdued light face to form an optical system which can conduct light diffuse reflection, accumulation of light rays of an LED chip is internally strengthened, and in the process of refection, the light diffuse reflection is externally increased, light rays after condensation of the lens are naturally uniform, and uniformity of facula is improved.

Description

The collector lens of LED integrated optical source

[technical field]

The utility model relates to lighting field, relates in particular to many led chips lamp condenser lens.

[background technology]

The LED industry development brings LED to be widely used now, LED is actually a kind of light emitting diode, each single chip is packaged in early days, single LEDs luminous quantity is not too large and light source itself is less, also mostly when in use is the combined and spliced LED of becoming screen Integral luminous, along with technical development LED exploitation degree is more and more higher, emerge more structures, function, the LED luminous energy product of shape, a kind of product occurring on the market at present concentrates some LEDs light sources and is packaged together, light emission lens by an overall configuration consists of a light emitting source, but being exactly several chips of being packaged together, the problem that this light emitting source must be handled well exhales the illumination effect of a light source body, if and the light that adopts traditional smooth type lens direct projection can demonstrate the light source that emits beam not globality and non-centrality, thereby produce the not good sense organ of illumination effect.

[summary of the invention]

The utility model has proposed a kind of LED collector lens that allows the light source that is packaged with multiple chips be revealed as the integrated light source effect for above problem, and light is mixed, increases the soft light source Integral luminous of light diffusion effect effect fully.

A kind of collector lens of LED integrated optical source, comprise transparent lens case and in the space of lens case built-in light source, lens case integral body presents the rotation of aspheric surface hyperbola and forms bowl bodies, has the space of placing light source in the bowl bodies bottom, it is characterized in that, have first surface and second surface in bowl-shape enclosure, the first surface that is inwardly directly formed by shell directly is connected with shell, endoporus of formation caves in the center of described first surface, be provided with second surface in endoporus, the benchmark of described first surface is lower than the benchmark of second surface.The difference in height that the second benchmark is lower than the first benchmark is as the criterion to allow the edge of the summit of second surface and first surface remain on sustained height, and first surface and second surface just form a stable plane like this.

Tangent along axis array and curvature surface and outer scale that form at described lens case face.Outer scale allows the light that emits internally carry out free diffusion, carries out sheen.

First surface and second surface have three kinds of combinations, first surface and second surface tool are the curved surfaces that is formed along the central axis rotation by parabola, perhaps first surface is that plane and second surface are the curved surfaces that parabola forms along the central axis rotation, and perhaps first surface and second surface all are the planes.

If first surface is parabolic surface, first surface concave curvatures so, and second surface is convex surface.

Described second surface has one facing to the lateral surface of first surface with facing to the medial surface in the space of built-in light source, has the sheen face on described lateral surface or the medial surface.Has a plurality of array arrangements hexagon shallow-layer pit-holes together on the described sheen face.Described sheen face cooperates with the scale of lens case, the irreflexive optical system of light is carried out in formation, and the gathering internally strengthening led chip light increases again the diffuse reflection of light when externally launching, make the light behind the lens light gathering more naturally even, the uniformity of hot spot improves.

The space of described built-in light source has bottom surface and wall, and the bottom surface is that the medial surface of second surface and wall are from the lens case formation of caving in.

Described wall is that free curve rotates the curved surface that forms around axis.

The lens case of the collector lens of described LED integrated optical source is to adopt the optics acrylic to make, and integral molded plastic is made.

The beneficial effects of the utility model are: the outer scale of lens case and described sheen face cooperate, the irreflexive optical system of light is carried out in formation, in the gathering of internally strengthening led chip light, increase again the diffuse reflection of light when externally launching, make the light behind the lens light gathering more naturally even, the uniformity of hot spot improves.

[description of drawings]

Fig. 1 is that the utility model the first is implemented illustration;

Fig. 2 is spatial configuration figure embodiment illustrated in fig. 1;

Fig. 3 is that the utility model the second is implemented illustration;

Fig. 4 is the third enforcement illustration of the utility model.

Wherein: 1, lens case; 11, first surface; 12, second surface; 121, sheen face; 1211, pit-holes; 13, outer scale; 2, the space of built-in light source; 21, bottom surface; 22, wall.

[specific embodiment]

A kind of collector lens of LED integrated optical source, comprise transparent lens case 1 and in the space 2 of lens case built-in light source, lens case 1 integral body presents the rotation of aspheric surface hyperbola and forms bowl bodies, has the space 2 of placing light source in the bowl bodies bottom, it is characterized in that, have first surface 11 and second surface 12 in bowl-shape shell 1 inside, the first surface 11 that is inwardly directly formed by shell directly is connected with shell, endoporus of formation caves in the center of described first surface 11, be provided with second surface 12 in endoporus, the benchmark of described first surface 11 is lower than the benchmark of second surface 12.The difference in height that the benchmark of second surface is lower than the first surface benchmark is as the criterion to allow the edge of the summit of second surface and first surface remain on sustained height, and first surface and second surface just form a stable plane like this.

Tangent along axis array and curvature surface and outer scale 13 that form 1 of described lens case.Outer scale 13 allows the light that emits internally carry out free diffusion, carries out sheen.

First surface 11 and second surface 12 have three kinds of combinations, first surface and second surface tool are the curved surfaces that is formed along the central axis rotation by parabola, perhaps first surface is that plane and second surface are the curved surfaces that parabola forms along the central axis rotation, and perhaps first surface and second surface all are the planes.

If first surface 11 is parabolic surfaces, first surface concave curvatures so, and second surface is convex surface.

Described second surface 12 has one facing to the lateral surface of first surface with facing to the medial surface in the space of built-in light source, has sheen face 121 on described lateral surface or the medial surface.Has a plurality of array arrangements hexagon shallow-layer pit-holes 1211 together on the described sheen face 121.Described sheen face 121 cooperates with the scale of lens case 1, the irreflexive optical system of light is carried out in formation, and the gathering internally strengthening led chip light increases again the diffuse reflection of light when externally launching, make the light behind the lens light gathering more naturally even, the uniformity of hot spot improves.

The space 2 of described built-in light source has bottom surface 21 and wall 22, and the bottom surface is that the medial surface of second surface 12 and wall are from the lens case formation of caving in.

Described wall 22 is that free curve rotates the curved surface that forms around axis.

In the space of the built-in light source that goes out as shown in fig. 1 the first embodiment lens of the specific embodiment of anticipating out as shown in the drawing, wall is free curve as bus, and rotation is rotated the curved surface that forms around central shaft, and first surface and second surface all are curved surfaces, Fig. 3 is the structure chart of second embodiment, wherein having embodied first surface and second surface all is curved surface, and wall 22 is caliber shape inwalls; Fig. 4 is the structure chart of the 3rd embodiment, has wherein embodied the situation that first surface and second surface all are the planes.

The above, it only is the utility model preferred embodiment, be not that the utility model is done any pro forma restriction, although the utility model discloses as above with preferred embodiment, yet be not to limit the utility model, any those skilled in the art, within not breaking away from the technical solutions of the utility model scope, when the technology contents that can utilize above-mentioned announcement is made a little change or is modified to the equivalent embodiment of equivalent variations, in every case be not break away from the technical solutions of the utility model content, refer to any simple modification that above embodiment is done according to the utility model technology, equivalent variations and modification all belong in the scope of technical solutions of the utility model.

Claims

1. the collector lens of a LED integrated optical source, comprise transparent lens case and in the space of lens case built-in light source, lens case integral body presents the rotation of aspheric surface hyperbola and forms bowl bodies, has the space of placing light source in the bowl bodies bottom, it is characterized in that, have first surface and second surface in bowl-shape enclosure, the first surface that is inwardly directly formed by shell directly is connected with shell, endoporus of formation caves in the center of described first surface, be provided with second surface in endoporus, the benchmark of described first surface is lower than the benchmark of second surface.

2. the collector lens of described LED integrated optical source according to claim 1 is characterized in that, is tangent along axis array and curvature surface and outer scale that form at described lens case face.

3. the collector lens of described LED integrated optical source according to claim 2 is characterized in that, described first surface and second surface all are the curved surfaces that parabola forms along the central axis rotation, the central axes of described first surface and second surface.

4. the collector lens of described LED integrated optical source according to claim 3 is characterized in that, described first surface is concave curvatures, and second surface is convex surface.

5. the collector lens of described LED integrated optical source according to claim 2 is characterized in that, described first surface is the plane, and described second surface also is the plane.

6. according to claim 4 or the collector lens of 5 described LED integrated optical sources, it is characterized in that, described second surface has one facing to the lateral surface of first surface with facing to the medial surface in the space of built-in light source, has the sheen face on described lateral surface or the medial surface.

7. the collector lens of described LED integrated optical source according to claim 6 is characterized in that having a plurality of array arrangements hexagon shallow-layer pit-holes together on the described sheen face.

8. the collector lens of described LED integrated optical source according to claim 6 is characterized in that, the space of described built-in light source has bottom surface and wall, and the bottom surface is that the medial surface of second surface and wall are from the lens case formation of caving in.

9. the collector lens of described LED integrated optical source according to claim 8 is characterized in that, described wall is that free curve rotates the curved surface that forms around axis.

10. the collector lens of the described LED integrated optical source of arbitrary claim is characterized in that according to claim 1-5, and the collector lens of described LED integrated optical source is to adopt the optics acrylic to make, and integral molded plastic is made.