CN220119224U - LED street lamp lens unit and integrated lens whole lamp thereof - Google Patents
LED street lamp lens unit and integrated lens whole lamp thereof Download PDFInfo
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- CN220119224U CN220119224U CN202320620956.6U CN202320620956U CN220119224U CN 220119224 U CN220119224 U CN 220119224U CN 202320620956 U CN202320620956 U CN 202320620956U CN 220119224 U CN220119224 U CN 220119224U
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- 241000219112 Cucumis Species 0.000 description 1
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Abstract
The utility model discloses an LED street lamp lens unit and an integrated lens whole lamp thereof, belongs to the technical field of illumination, and aims to ensure the overall light utilization rate of a lens. The LED light source is arranged at the bottom of the light inlet face and is aligned with the light inlet face; one side of the light incident surface is provided with an auxiliary light control surface I, and the other side of the light incident surface is provided with an auxiliary light control surface II; the first auxiliary light control surface and the second auxiliary light control surface are transparent free curved surfaces which are arranged on the bottom plane of the light source tank and are concave; the auxiliary light control surface I and the auxiliary light control surface II are symmetrical relative to the light incident surface. The reflection and refraction effects of the auxiliary light control surface are utilized to deflect the light rays with large angles to a preset road surface, so that the overall light utilization rate of the lens is improved, and the contradiction among the integrated number, optical performance and economic benefit of the lens units of the LED street lamp is relieved. The concave auxiliary light control surface is beneficial to reducing the overall weight of the lens and the material cost of the lens.
Description
Technical Field
The utility model relates to the field of illumination, in particular to an LED street lamp lens unit and an integrated lens whole lamp thereof.
Background
High light efficiency and high power density are mainstream developments of street lamp lenses, so that more optical units need to be integrated without changing the lens area. As shown in fig. 1, the lens unit of the street lamp popular in the market is used for controlling the light of the LED light source by mutually matching two curved surfaces, wherein the two curved surfaces are respectively a convex light emergent surface 1 at the top and a concave light incident surface 2 arranged in the middle of a plane 6 at the bottom of the light source tank; however, after the street lamp lens adopting the light control mode is integrated, as shown in fig. 2, light rays with large angles, such as Ray1, ray2 and Ray3, cannot smoothly reach a preset road surface, and the light rays are either deviated from the road surface or absorbed by the material, so that the overall light utilization rate of the lens is low. Causing its number of integration to approach a limit. If the integration number is to be increased, the light emitting efficiency is lower and lower, the cost is higher and higher, and the total performance and economic benefit are lower. In order to get rid of the limitation of the existing light control mode of the street lamp lens, a street lamp lens which changes the existing light control mode and has a promising prospect is needed.
Disclosure of Invention
The utility model aims to provide an LED street lamp lens unit and an integrated lens whole lamp thereof, which ensure the light utilization rate of the whole lens.
The technical scheme adopted by the utility model is as follows: the LED street lamp lens unit comprises a convex light emitting surface at the top, a light source groove bottom plane at the bottom and an LED light source, wherein a concave light entering surface is arranged in the middle of the light source groove bottom plane, the light emitting surface and the light entering surface are transparent free curved surfaces, and the LED light source is arranged at the bottom of the light entering surface and aligned with the light entering surface; an auxiliary light control surface I is arranged on one side of the light incident surface, and an auxiliary light control surface II is arranged on the other side of the light incident surface; the first auxiliary light control surface and the second auxiliary light control surface are concave transparent free curved surfaces arranged on the bottom plane of the light source tank; and the first auxiliary light control surface and the second auxiliary light control surface are symmetrical with respect to the light incident surface, and the LED light source is only aligned with the light incident surface in the light incident surface, the first auxiliary light control surface and the second auxiliary light control surface.
Further, the outer contour line of the orthographic projection of the light incident surface on the bottom plane of the light source tank is a closed curve with axisymmetry; the outer contour line of orthographic projection of the light-emitting surface on the bottom plane of the light source groove is a closed curve with axisymmetry; and the long axis of the orthographic projection of the light incident surface coincides with the short axis of the orthographic projection of the light emergent surface.
Further, the first auxiliary light control surface and the second auxiliary light control surface are respectively arranged on the left side and the right side of the long axis of the orthographic projection of the light entering surface.
Further, the outer contour lines of the orthographic projections of the first auxiliary light control surface and the second auxiliary light control surface on the bottom plane of the light source tank are axisymmetrically closed curves, and the long axis of the orthographic projection is parallel to the long axis of the orthographic projection of the light entering surface.
Further, at least 2/3 of the orthographic projections of the first auxiliary light control surface and the second auxiliary light control surface on the bottom plane of the light source tank and the orthographic projection of the light incident surface on the bottom plane of the light source tank are positioned in the surrounding area of the orthographic projection of the light incident surface on the bottom plane of the light source tank.
Further, the light emitting surface is connected with the bottom plane of the light source tank through a flange.
Further, the light-emitting surface is a smooth surface; the auxiliary light control surface I and the auxiliary light control surface II are smooth surfaces.
Further, the thickness of the LED light source is H1; the distance between the bottom plane of the light source tank and the front of the bottom of the LED light source is H2; h2 is more than 0 and less than or equal to 1.2H1.
The LED street lamp comprises N LED street lamp lens units, wherein one auxiliary light control surface of one LED street lamp lens unit is arranged adjacent to one auxiliary light control surface of the other LED street lamp lens unit in two adjacent LED street lamp lens units, and the LED street lamp lens units are integrated.
Further, in two adjacent LED street lamp lens units, one auxiliary light control surface of one LED street lamp lens unit and one auxiliary light control surface of the other LED street lamp lens unit can be fused into one surface.
The beneficial effects of the utility model are as follows: according to the utility model, the auxiliary light control surface is added on the plane at the bottom of the light source groove of the LED street lamp lens units, so that after the LED street lamp lens units are integrated, the large-angle light is deflected to the preset road surface by utilizing the reflection and refraction effects of the auxiliary light control surface, thereby improving the light utilization rate of the whole lens and relieving the contradiction between the integrated number of the LED street lamp lens units, the optical performance and the economic benefit.
Meanwhile, the auxiliary light control surface is a concave free-form surface, so that the overall weight of the lens is reduced, and the material cost of the lens is reduced.
Drawings
FIG. 1 is a schematic diagram of a conventional street lamp lens unit;
FIG. 2 is a schematic cross-sectional view of an integrated street lamp lens unit;
FIG. 3 is a schematic view of a lens unit of the street lamp according to the present utility model;
FIG. 4 is a top view of the lens unit structure of the street lamp of the present utility model;
fig. 5 is a schematic cross-sectional view of the integrated streetlamp lens unit of the present utility model.
In the figure, a light emitting surface 1, a light entering surface 2, an auxiliary light control surface I3, an auxiliary light control surface II 4, a flange 5, a light source groove bottom plane 6 and an LED light source 7.
Detailed Description
The utility model is further illustrated in the following figures and examples, in which:
in the present utility model, the terms "top," "bottom," "left," and "right," etc. refer to an orientation or positional relationship based on that shown in fig. 1, for convenience of description of the present utility model, and are not intended to indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the utility model.
As shown in fig. 1, a conventional LED street lamp lens unit includes a convex light emitting surface 1 at the top, a light source bottom plane 6 and an LED light source 7, a concave light incident surface 2 is disposed in the middle of the light source bottom plane 6, the light emitting surface 1 and the light incident surface 2 are transparent free curved surfaces, and the LED light source 7 is disposed at the bottom of the light incident surface 2 and aligned with the light incident surface 2. That is, in the conventional LED street lamp lens unit, only two curved surfaces, i.e., the light incident surface 2 and the light emergent surface 1, are adopted to control light, after the two LED street lamp lens units are integrated, as shown in fig. 2, light rays with large angles, such as Ray1, ray2 and Ray3, cannot smoothly reach a predetermined road surface, and the light rays are either deviated from the road surface or absorbed by the material itself, so that the overall light utilization rate of the lens is low.
In order to alleviate the situation that the light utilization rate is low, as shown in fig. 3 and 4, on the basis of a traditional LED street lamp lens unit, an auxiliary light control surface I3 is arranged on one side of a light incident surface 2, and an auxiliary light control surface II 4 is arranged on the other side of the light incident surface; the first auxiliary light control surface 3 and the second auxiliary light control surface 4 are concave transparent free curved surfaces arranged on the bottom plane 6 of the light source tank; and the auxiliary light control surface I3 and the auxiliary light control surface II 4 are symmetrical relative to the light incident surface 2. The LED light source 7 is only aligned with the light incident surface 2 and is not positioned right below the auxiliary light control surface I3 or the auxiliary light control surface II 4. The light incident surface 2 mainly plays a role in refraction in light propagation, and the auxiliary light control surface I3 and the auxiliary light control surface II 4 play a role in reflection and a role in refraction. Therefore, after the two LED street lamp lens units are integrated, as shown in fig. 5, the large-angle light rays such as Ray4, ray5 and Ray6 deflect the large-angle light rays to a preset road surface through the reflection and refraction actions of the auxiliary light control surface I3 and the auxiliary light control surface II 4, so that the overall light utilization rate of the lens is improved.
Meanwhile, the auxiliary light control surface I3 and the auxiliary light control surface II 4 are concave, so that the overall weight of the lens is reduced, and the material cost of the lens is reduced.
Preferably, the outer contour line of the orthographic projection of the light incident surface 2 on the bottom plane 6 of the light source tank is a closed curve with axisymmetry; the outer contour line of the orthographic projection of the light-emitting surface 1 on the bottom plane 6 of the light source tank is a closed curve with axisymmetry; and the long axis of the orthographic projection of the light incident surface 2 coincides with the short axis of the orthographic projection of the light emergent surface 1.
The axisymmetric closed curve of the outer contour line shows that the outer contour of the orthographic projection of the light incident surface 2 and the light emergent surface 1 can be elliptical, melon seed-shaped, pear-shaped or circular. It is noted that when the outer contour of the orthographic projection is circular, the major and minor axes of the orthographic projection may be interchanged.
The first auxiliary light control surface 3 and the second auxiliary light control surface 4 are respectively positioned at the left side and the right side of the long axis of the orthographic projection of the light entering surface 2. When the outline of the orthographic projection is circular, the major axis and the minor axis can be interchanged, so that the influence on the positions of the auxiliary light control surface I3 and the auxiliary light control surface II 4 is small. When the outline of the orthographic projection is in an oval shape, a melon seed shape or a pear shape and the like, and the major axis and the minor axis are obviously different, the left side and the right side of the major axis of the orthographic projection of the auxiliary light control surface I3 and the auxiliary light control surface II 4 are respectively positioned on the light inlet surface 2, so that the auxiliary light control surface is more beneficial to being opposite to the light outlet surface 1, and the light outlet efficiency is ensured.
In order to ensure that the auxiliary light control surface is opposite to the light emitting surface 1, preferably, the outer contour lines of the orthographic projections of the auxiliary light control surface I3 and the auxiliary light control surface II 4 on the bottom plane 6 of the light source tank are axisymmetrically closed curves, and the long axis of the orthographic projection is parallel to the long axis of the orthographic projection of the light entering surface 2. By the arrangement, the areas of the first auxiliary light control surface 3 and the second auxiliary light control surface 4 can be ensured to be large enough, and the light control performance is improved.
If the auxiliary light control surface 3 and the auxiliary light control surface two 4 exceed the light emitting surface 1 too much, the problem that the material absorbs part of the light with a large angle will occur, which is unfavorable for ensuring the light emitting efficiency of the lens, and in order to avoid the problem, the preferred mode is that at least 2/3 of the orthographic projection of the auxiliary light control surface 3 and the auxiliary light control surface two 4 on the bottom plane 6 of the light source tank and the orthographic projection of the light entering surface 2 on the bottom plane 6 of the light source tank are located in the surrounding area of the orthographic projection of the light emitting surface 1 on the bottom plane 6 of the light source tank. That is, at least 2/3 of the sum of the orthographic projection of the auxiliary light control surface I3 on the light source tank bottom plane 6, the orthographic projection of the auxiliary light control surface II 4 on the light source tank bottom plane 6 and the orthographic projection of the light entering surface 2 on the light source tank bottom plane 6 is positioned in the surrounding area of the orthographic projection of the light emitting surface 1 on the light source tank bottom plane 6.
In order to assemble the light-emitting surface 1 and the light-entering surface 2 together, it is preferable that the light-emitting surface 1 and the light source groove bottom plane 6 are connected by a flange 5.
In order to facilitate processing and light transmission, the light-emitting surface 1 is preferably a smooth surface; the first auxiliary light control surface 3 and the second auxiliary light control surface 4 are smooth surfaces.
In order to ensure the light-emitting efficiency of the lens, the thickness of the LED light source 7 is preferably H1; the distance between the light source groove bottom plane 6 and the front of the bottom of the LED light source 7 is H2; h2 is more than 0 and less than or equal to 1.2H1; the thickness of the flange 5 is H4; the distance between the bottom of the contact part of the two lens units and the bottom of the LED light source 7 is H3; h2 is more than or equal to H3 and less than or equal to H4.
When the front size of the LED street lamp lens unit is 3mm multiplied by 3mm, and the number of the integrated lens units per square centimeter is 1-2, compared with the whole integrated LED street lamp lens unit, the integrated whole lamp light-emitting efficiency can be improved by 3% -5%, and the material cost is reduced by 8% -12%.
The LED street lamp comprises a plurality of LED street lamp lens units, wherein N is a positive integer greater than or equal to 2, and in two adjacent LED street lamp lens units, one auxiliary light control surface of one LED street lamp lens unit is arranged adjacent to one auxiliary light control surface of the other LED street lamp lens unit and integrated. The auxiliary light control surface can be the auxiliary light control surface I3 or the auxiliary light control surface II 4. Fig. 5 shows a schematic cross-sectional view of 2 integrated street lamp lens units, and it can be seen from the figure that, during integration, a part of each LED street lamp lens unit is subtracted, the bottoms of adjacent auxiliary light control surfaces are close together, so as to ensure that a large-angle light Ray such as Ray6 from one LED street lamp lens unit can be effectively transmitted to a road surface through the other adjacent LED street lamp lens unit. Of course, the two auxiliary light control surfaces can be integrated into one surface.
Claims (10)
- The LED street lamp lens unit comprises a convex light emitting surface (1) at the top, a light source groove bottom plane (6) at the bottom and an LED light source (7), wherein a concave light entering surface (2) is arranged in the middle of the light source groove bottom plane (6), the light emitting surface (1) and the light entering surface (2) are transparent free curved surfaces, and the LED light source (7) is arranged at the bottom of the light entering surface (2) and is aligned with the light entering surface (2); the method is characterized in that: an auxiliary light control surface I (3) is arranged on one side of the light incident surface (2), and an auxiliary light control surface II (4) is arranged on the other side of the light incident surface; the first auxiliary light control surface (3) and the second auxiliary light control surface (4) are transparent free curved surfaces which are arranged on the bottom plane (6) of the light source groove and are concave; the auxiliary light control surface I (3) and the auxiliary light control surface II (4) are symmetrical relative to the light incident surface (2); in the light incident surface (2), the auxiliary light control surface I (3) and the auxiliary light control surface II (4), the LED light source (7) is only aligned with the light incident surface (2).
- 2. The LED street lamp lens unit of claim 1, wherein: the outline of the orthographic projection of the light incident surface (2) on the bottom plane (6) of the light source groove is a closed curve with axisymmetry; the outline of the orthographic projection of the light-emitting surface (1) on the bottom plane (6) of the light source groove is a closed curve with axisymmetry; and the long axis of the orthographic projection of the light incident surface (2) coincides with the short axis of the orthographic projection of the light emergent surface (1).
- 3. The LED street lamp lens unit of claim 2, wherein: the auxiliary light control surface I (3) and the auxiliary light control surface II (4) are respectively arranged at the left side and the right side of the long axis of the orthographic projection of the light entering surface (2).
- 4. The LED street lamp lens unit of claim 3, wherein: the outer contour lines of the orthographic projection of the auxiliary light control surface I (3) and the auxiliary light control surface II (4) on the light source groove bottom plane (6) are axisymmetric closed curves.
- 5. The LED street lamp lens unit of claim 2 or 3 or 4, wherein: the orthographic projection of the auxiliary light control surface I (3) and the auxiliary light control surface II (4) on the light source groove bottom plane (6) and at least 2/3 of the orthographic projection of the light entering surface (2) on the light source groove bottom plane (6) are positioned in the surrounding area of the orthographic projection of the light entering surface (2) on the light source groove bottom plane (6).
- 6. The LED street lamp lens unit as claimed in any one of claims 1-4, wherein: the light-emitting surface (1) is connected with the light source groove bottom plane (6) through a flange (5).
- 7. The LED street lamp lens unit as claimed in any one of claims 1-4, wherein: the light-emitting surface (1) is a smooth surface; the first auxiliary light control surface (3) and the second auxiliary light control surface (4) are smooth surfaces.
- 8. The LED street lamp lens unit as claimed in any one of claims 1-4, wherein: the thickness of the LED light source (7) is H1; the distance between the light source groove bottom plane (6) and the front of the bottom of the LED light source (7) is H2; h2 is more than 0 and less than or equal to 1.2H1.
- The whole lens lamp of LED street lamp lens unit integration, including N LED street lamp lens unit, its characterized in that: the LED street lamp lens unit is the LED street lamp lens unit according to any one of claims 1-4, wherein one auxiliary light control surface of one LED street lamp lens unit is arranged adjacent to one auxiliary light control surface of the other LED street lamp lens unit in two adjacent LED street lamp lens units, and the LED street lamp lens units are integrated.
- 10. The LED street lamp lens unit integrated lens whole lamp of claim 9, wherein: in two adjacent LED street lamp lens units, one auxiliary light control surface of one LED street lamp lens unit and one auxiliary light control surface of the other LED street lamp lens unit can be fused into one surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320620956.6U CN220119224U (en) | 2023-03-27 | 2023-03-27 | LED street lamp lens unit and integrated lens whole lamp thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320620956.6U CN220119224U (en) | 2023-03-27 | 2023-03-27 | LED street lamp lens unit and integrated lens whole lamp thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220119224U true CN220119224U (en) | 2023-12-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320620956.6U Active CN220119224U (en) | 2023-03-27 | 2023-03-27 | LED street lamp lens unit and integrated lens whole lamp thereof |
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| Country | Link |
|---|---|
| CN (1) | CN220119224U (en) |
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- 2023-03-27 CN CN202320620956.6U patent/CN220119224U/en active Active
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Effective date of registration: 20240306 Address after: 618000 Plot No. 201807-4, Jinshan Industrial Park, Luojiang District, Deyang City, Sichuan Province Patentee after: Sichuan ousheng Optical Instrument Co.,Ltd. Country or region after: China Address before: Floor 1, area C, No.98 Tiancai Road, high tech Zone, Chengdu, Sichuan 610000 Patentee before: CHENGDU ALLSHINE PHOTOELECTRIC TECHNOLOGY CO.,LTD. Country or region before: China |