CN203068420U - Lens for LED lighting - Google Patents
Lens for LED lighting Download PDFInfo
- Publication number
- CN203068420U CN203068420U CN2013200851796U CN201320085179U CN203068420U CN 203068420 U CN203068420 U CN 203068420U CN 2013200851796 U CN2013200851796 U CN 2013200851796U CN 201320085179 U CN201320085179 U CN 201320085179U CN 203068420 U CN203068420 U CN 203068420U
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- curvature
- lens body
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Abstract
The utility model relates to a lens for LED lighting, which comprises a lens body; an incident plane and an emergence plane are respectively arranged at two ends of the lens; an emergence hole is formed in the middle of the emergence plane; one side surface of the lens is a reflecting plane; the reflecting plane is formed by sequentially splicing a plurality of reflecting scales around the axial line of the lens body; and the curvature between two adjacent reflecting scales is discontinuous. When light shines on the reflecting plane of the lens body to be fully reflected, light reflected by all the reflecting scales shines on the same center, and the reflecting scales are overlaid, scattered and modulated in a light field, so that light is more uniform to distribute in the light field.
Description
Technical field
The utility model relates to a kind of light-distribution lens, particularly a kind of LED illumination light-distribution lens.
Background technology
LED has been widely used in various lightings as the novel energy-conserving light source, as the par lamp of indoor use, the street lamp of outdoor application, Tunnel Lamp, advertising lamp etc.
In order to improve the light extraction efficiency of led light source, improve the light-emitting area of led chip as far as possible, usually adopt and carry out cutting at the LED luminescence chip, for the output that obtains big luminous flux guarantees led light-source structure compactness simultaneously, usually adopt the integrated encapsulation of high-power chip, but, such light source very easily produces non-uniform phenomenon and the even transient of uneven illumination of color at illuminated field at the low-angle lighting field, in order to overcome this phenomenon, normally the exit facet at light-distribution lens arranges the on all four compound eye of face shape parameter or makes hair side, its weak point is: after exit facet is arranged to fly's-eye lens, very easily produce the hot spot consistent with the compound eye shape at illuminated field, it is to the color consistency of light field and the uniformity undermodulation of illumination change.
The utility model content
The technical problems to be solved in the utility model is to overcome the above-mentioned deficiency of prior art, and the equally distributed LED illumination of a kind of outgoing light color in illuminated field light-distribution lens is provided.
For solving the problems of the technologies described above, the utility model provides following technical scheme:
A kind of LED illumination light-distribution lens, comprise lens body, the both ends of the surface of described lens body are respectively arranged with the plane of incidence and exit facet, the middle part of described exit facet is provided with perforation hole, the side of described lens body is provided with reflecting surface, described reflecting surface is spliced around the axis of lens body successively by several reflective scales, and the curvature between adjacent two reflective scales is discontinuous.When light was got to the reflecting surface generation total reflection of lens body side, the light that each reflective scale total reflection is come out was radiated at same center, and the just stack scattering modulation in light field of a plurality of reflective scales makes the light that penetrates distribute more even in light field.
Preferably, described exit facet is spliced successively by several annular printing opacity scales.Adopt in such a way, again the light of modulated radial direction, allow light further mix, avoid piebald, each light that encircles out all converges to the center, all rings will in be formed centrally stack, thereby avoided the light modulation of radial direction not enough, the inconsistent situation in spot center and edge may appear.
Preferably, the outer surface of described each annular printing opacity scale is the continuous outer convex surface of curvature.
Preferably, the curvature between described adjacent two annular printing opacity scales is discontinuous.
Preferably, described several annular printing opacity scales arrange with one heart.
Preferably, described reflective scale is fan-shaped.
Preferably, the end face of described perforation hole is spliced by several polygon scales, curvature between adjacent two polygon scales is discontinuous, light through adjacent one another are and the discontinuous polygon scale modulation of curvature stack after, make that this part light is more even.
Compared with prior art, the beneficial effects of the utility model are:Adopt said structure, when light is got to the reflecting surface generation total reflection of lens body side, the light that each reflective scale total reflection is come out is radiated at same center, and the just stack scattering modulation in light field of a plurality of reflective scales makes the light that penetrates distribute more even in light field.
Description of drawings
Fig. 1 is main schematic diagram of the present utility model;
Fig. 2 is the structural representation that partly cuts open of the present utility model;
Fig. 3 looks closely to schematic diagram for the incident of the utility model light;
Fig. 4 looks closely to schematic diagram for the utility model beam projecting.
Mark among the figure: lens body-1; The plane of incidence-2; Exit facet-3; Reflecting surface-4; Reflective scale-5; Annular printing opacity scale-6; Polygon scale-7; Perforation hole-8.
The specific embodiment
Below in conjunction with the drawings and specific embodiments the utility model is further described.
Embodiment of the present utility model is not limited to following examples, all belongs within the protection domain of the present utility model in the various variations of making under the prerequisite that does not break away from the utility model aim.
As shown in Figures 1 to 4, a kind of LED illumination of present embodiment comprises lens body 1 with light-distribution lens, the both ends of the surface of lens body 1 are respectively arranged with the plane of incidence 2 and exit facet 3, the middle part of exit facet 3 is provided with perforation hole 8, the side of lens body 1 is provided with reflecting surface 4, reflecting surface 4 is spliced around the axis of lens body 1 successively by several reflective scales 5, curvature between adjacent two reflective scales 5 is discontinuous, each reflective scale 5 is fan-shaped, when light is got to the reflecting surface 4 generation total reflections of lens body 1 side, the light that each reflective scale 5 total reflection is come out is radiated at same center, the just stack scattering modulation in light field of a plurality of reflective scales 5 makes the light that penetrates distribute more even in light field.
For fear of the light modulation of radial direction not enough, the inconsistent situation in spot center and edge may appear, in the present embodiment, exit facet 3 is spliced successively by several annular printing opacity scales 6, by such mode, again modulate the light of lens body 1 radial direction, allow light further mix, avoid forming piebald, each light that encircles out all converges to the center, all rings will in be formed centrally stack, in the present embodiment, the outer surface of each annular printing opacity scale 6 is the continuous outer convex surface of curvature, and the curvature between adjacent two annular printing opacity scales 6 is discontinuous, and several annular printing opacity scales 6 arrange with one heart.
In order to make emergent ray more even, end face at perforation hole 8 is spliced by several polygon scales 7, curvature between adjacent two polygon scales 7 is discontinuous, in the present embodiment, polygon scale 7 roughly is the quadrangle shape of trapezium structure, light through adjacent one another are and the discontinuous polygon scale 7 modulation stacks of curvature after, can shine in illuminated field more equably.
The utility model is not limited to the aforesaid specific embodiment.The utility model expands to any new feature or any new combination that discloses in this manual, and the arbitrary new method that discloses or step or any new combination of process.
Claims (7)
1. a LED throws light on and uses light-distribution lens, comprise lens body, the both ends of the surface of described lens body are respectively arranged with the plane of incidence and exit facet, the middle part of described exit facet is provided with perforation hole, the side of described lens body is provided with reflecting surface, it is characterized in that: described reflecting surface is spliced around the axis of lens body successively by several reflective scales, and the curvature between adjacent two reflective scales is discontinuous.
2. light-distribution lens is used in LED illumination according to claim 1, and it is characterized in that: described exit facet is spliced successively by several annular printing opacity scales.
3. light-distribution lens is used in LED illumination according to claim 2, and it is characterized in that: the outer surface of described each annular printing opacity scale is the continuous outer convex surface of curvature.
4. light-distribution lens is used in LED illumination according to claim 3, and it is characterized in that: the curvature between described adjacent two annular printing opacity scales is discontinuous.
5. light-distribution lens is used in LED illumination according to claim 4, and it is characterized in that: described several annular printing opacity scales arrange with one heart.
6. use light-distribution lens according to arbitrary described LED illumination in the claim 1 to 5, it is characterized in that: described reflective scale is fan-shaped.
7. use light-distribution lens according to arbitrary described LED illumination in the claim 1 to 5, it is characterized in that: the end face of described perforation hole is spliced by several polygon scales, and the curvature between adjacent two polygon scales is discontinuous.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013200851796U CN203068420U (en) | 2013-02-25 | 2013-02-25 | Lens for LED lighting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013200851796U CN203068420U (en) | 2013-02-25 | 2013-02-25 | Lens for LED lighting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203068420U true CN203068420U (en) | 2013-07-17 |
Family
ID=48767199
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013200851796U Expired - Fee Related CN203068420U (en) | 2013-02-25 | 2013-02-25 | Lens for LED lighting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203068420U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108413354A (en) * | 2018-02-27 | 2018-08-17 | 江苏大学 | A kind of LED blackboard lights lens |
-
2013
- 2013-02-25 CN CN2013200851796U patent/CN203068420U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108413354A (en) * | 2018-02-27 | 2018-08-17 | 江苏大学 | A kind of LED blackboard lights lens |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130717 Termination date: 20160225 |