CN204730118U - LED street lamp lens unit, module and there is the street lamp of this LED street lamp lens module - Google Patents
LED street lamp lens unit, module and there is the street lamp of this LED street lamp lens module Download PDFInfo
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- CN204730118U CN204730118U CN201520421975.1U CN201520421975U CN204730118U CN 204730118 U CN204730118 U CN 204730118U CN 201520421975 U CN201520421975 U CN 201520421975U CN 204730118 U CN204730118 U CN 204730118U
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- street lamp
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- plane
- lamp lens
- led street
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Abstract
The utility model provides a kind of LED street lamp lens unit, be located at the light-emitting window of a LED light source, comprise exit facet that shape is plane and shape is the plane of incidence of free form surface, with be parallel to described exit facet and plane through described LED light source be XY plane, with described LED light source for O point sets up a rectangular coordinate system OXYZ, in described rectangular coordinate system OXYZ, the positive Y-direction part of the described plane of incidence is more than or equal to negative Y-direction part, and the Z-direction height of the described plane of incidence changes along with the emergent light of described LED light source and the variable angle of Y-axis.The invention also discloses a kind of street lamp, comprise and be located at driving module in housing and above-mentioned LED street lamp lens module, described driving module drives described LED street lamp lens module luminous.
Description
Technical field
The utility model relates to lighting field, particularly relates to a kind of LED street lamp lens unit, LED street lamp lens module and has the street lamp of this LED street lamp lens module.
Background technology
In order to meet Lighting Design of Urban Road standard, traditional road illuminating lamp often adopts power consumption more than 200 watts mercuric bulbs.By contrast, by 2009, on market, the optical efficiency of light emitting diode (LED) has exceeded 100lm/W, this means to adopt LED to make the street lamp of light source, and its power consumption will reduce greatly.Due to extra long life, the mercurous and not energy-conservation characteristic of LED, the street lamp adopting LED to make light source is good selection to replace traditional LPS (low-pressure sodium lamp) or MH (metal halide lamp).At present, LED street lamp in the world every country all test.In order to solve the emission problem of energy scarcity and greenhouse gases, LED street lamp is practical in some places, and wherein some areas in China, North America and Europe and urban government have carried out positive popularization.
Street lamp lens is peanut shape substantially in the market, there are inside and outside two optical surfaces and for free form surface, during street lamp lens design, general fixing inner surface design outer surface or surfaces externally and internally Synchronization Design, design is complicated and lamp surface out-of-flatness impact is attractive in appearance.
Utility model content
In order to overcome above-mentioned technological deficiency, the purpose of this utility model is the street lamp providing a kind of LED street lamp lens unit, LED street lamp lens module and have this LED street lamp lens module.
The utility model discloses a kind of LED street lamp lens unit, be located at the light-emitting window of a LED light source, comprise exit facet that shape is plane and shape is the plane of incidence of free form surface, with be parallel to described exit facet and plane through described LED light source be XY plane, with described LED light source for O point sets up a rectangular coordinate system OXYZ, in described rectangular coordinate system OXYZ, the positive Y-direction part of the described plane of incidence is more than or equal to negative Y-direction part, and the Z-direction height of the described plane of incidence changes along with the emergent light of described LED light source and the variable angle of Y-axis.
Preferably, the described plane of incidence is symmetrical about Y-axis.
Preferably, in ZOY section, to spend and within the scope of 70 to 130 degree 0 to 30 at described emergent light and Y-axis angle, the Z-direction height of the described plane of incidence reduces along with Y-coordinate and increases, to spend and within the scope of 130 to 180 degree, the Z-direction height of the described plane of incidence reduces along with Y-coordinate and reduces 30 to 70 at described emergent light and Y-axis angle.
Preferably, the described plane of incidence is symmetrical about X-axis, simultaneously symmetrical about Y-axis.
Preferably, in ZOY section, the described plane of incidence is cambered surface.
Preferably, the described plane of incidence is Rotational Symmetry figure.
Preferably, in ZOY section, the Z-direction height of the described plane of incidence reduces along with the absolute value increase of Y-coordinate.
Preferably, at described emergent light and Y-axis angle within the scope of 0 to 30 degree, the tangent line of the described plane of incidence and the angle of positive Z axis are increased to 110 degree from 90 degree; At described emergent light and Y-axis angle within the scope of 30 to 70 degree, the tangent line of the described plane of incidence and the angle of positive Z axis are decreased to 105 degree from 110 degree; At described emergent light and Y-axis angle within the scope of 70 to 90 degree, the tangent line of the described plane of incidence and the angle of positive Z axis are increased to 140 degree from 105 degree.
Preferably, in ZOX section, the Z-direction height of the described plane of incidence reduces along with the absolute value increase of X-coordinate.
Preferably, at described emergent light and X-axis angle within the scope of 0 to 30 degree, the tangent line of the described plane of incidence and the angle of positive Z axis are increased to 110 degree from 90 degree; At described emergent light and X-axis angle within the scope of 30 to 70 degree, the tangent line of the described plane of incidence and the angle of positive Z axis are decreased to 105 degree from 110 degree; At described emergent light and X-axis angle within the scope of 70 to 90 degree, the tangent line of the described plane of incidence and the angle of positive Z axis are increased to 140 degree from 105 degree.
Preferably, described LED street lamp lens unit is total reflection lens.
The invention also discloses a kind of LED street lamp lens module, comprise housing, and be fixed on the LED street lamp lens unit multiple as previously described in described housing.
Preferably, described LED street lamp lens unit is arranged into lens arra, and the inclined luminous intensity distribution in the same direction of the plane of incidence of LED street lamp lens unit described in each.
The invention also discloses a kind of street lamp, comprise and be located at driving module in housing and above-mentioned LED street lamp lens module, described driving module drives described LED street lamp lens module luminous.
After have employed technique scheme, compared with prior art, there is following beneficial effect:
1. the utility model LED street lamp lens that use outer surface to be plane, can meet road lighting demand and facilitate processing, the cleaning of lens surface, light fixture flat appearance is good.
2. in the LED street lamp lens unit that the utility model uses, the LED light source emergent light received by plane of incidence height is in z-direction relevant with the angle of Y-axis, realizes a kind of comparatively even, road lighting that irradiation distance is wider.
Accompanying drawing explanation
Fig. 1 is the perspective view of the LED street lamp lens unit meeting the utility model preferred embodiment;
Fig. 2 is the top view of the LED street lamp lens unit meeting the utility model first preferred embodiment;
Fig. 3 is the LED street lamp lens unit ZOX profile meeting the utility model first preferred embodiment;
Fig. 4 is the LED street lamp lens unit ZOY profile meeting the utility model first preferred embodiment;
Fig. 5 is the index path of the LED street lamp lens unit ZOX section meeting the utility model first preferred embodiment;
Fig. 6 is the index path of the LED street lamp lens unit ZOY section meeting the utility model first preferred embodiment;
Fig. 7 is the top view of the LED street lamp lens unit meeting the utility model second preferred embodiment;
Fig. 8 is the LED street lamp lens unit ZOX profile meeting the utility model second preferred embodiment;
Fig. 9 is the LED street lamp lens unit ZOY profile meeting the utility model second preferred embodiment;
Figure 10 is the index path of the LED street lamp lens unit ZOX section meeting the utility model second preferred embodiment;
Figure 11 is the index path of the LED street lamp lens unit ZOY section meeting the utility model second preferred embodiment;
Figure 12 is the top view of the LED street lamp lens unit meeting the utility model the 3rd preferred embodiment;
Figure 13 is the ZOX profile of the LED street lamp lens unit meeting the utility model the 3rd preferred embodiment;
Figure 14 is the index path of the LED street lamp lens unit ZOX section meeting the utility model the 3rd preferred embodiment;
Figure 15 is the distribution curve flux figure of the LED street lamp lens unit meeting the utility model preferred embodiment;
Figure 16 is the LED street lamp lens module meeting the utility model preferred embodiment.
Reference numeral:
1-LED light source;
2-exit facet;
The 3-plane of incidence;
4-housing;
5-LED street lamp lens unit.
Detailed description of the invention
Advantage of the present utility model is set forth further below in conjunction with accompanying drawing and specific embodiment.
As shown in Figure 1 be a kind of LED street lamp lens unit 5 meeting the utility model preferred embodiment, it is located at the light-emitting window of a LED light source 1, its global shape can need to be designed to the shapes such as cuboid, square, cylinder according to actual luminous intensity distribution, but must must ensure inner-cavity structure complete, be not destroyed.This LED street lamp lens unit 5 comprises the plane of incidence 3 that exit facet 2 that shape is plane and shape are free form surface, specifically, using this LED street lamp lens unit 5 flat surface as exit facet 2, the shape that sets to the concave in the position relative with this exit facet 2 is that the concave surface of free form surface is as the plane of incidence 3, because the indent of the plane of incidence 3 is arranged, one can be formed and hold the accommodation section of LED light source 1, make the plane of incidence 3 can receive emergent light from LED light source 1 as much as possible.
Be parallel to exit facet 2 and plane through LED light source 1 be XY plane, with LED light source 1 for O point sets up a rectangular coordinate system OXYZ, in rectangular coordinate system OXYZ, the positive Y-direction part of the plane of incidence 3 is more than or equal to negative Y-direction part, and the Z-direction height of the plane of incidence 3 changes along with the emergent light of LED light source 1 and the variable angle of Y-axis.As the LED street lamp lens unit 5 of above-mentioned setting, in this OXYZ rectangular coordinate system, depart from O point towards Y direction and place, make in actual application, place far away on road can be irradiated to more.
The face type of the plane of incidence 3 of the present utility model has the structure of three kinds of preferred embodiments, to be the plane of incidence 3 respectively symmetrical about Y-axis, the plane of incidence 3 simultaneously the and plane of incidence 3 symmetrical about X-axis, Y-axis about O point Rotational Symmetry.These three kinds of example structure have a common feature to be exactly that, in ZOX section, three kinds of surface structures of the plane of incidence 3 are the same.Particularly, the Z-direction height of the plane of incidence 3 reduces along with the absolute value increase of X-coordinate, form the curved surface face type that is roughly convex surface, the emergent light of LED light source 1 is made to be irradiated on road in divergence form after LED street lamp lens unit 5, as Fig. 3, shown in Fig. 8 and Figure 13, at the emergent light of LED light source 1 and X-axis angle within the scope of 0 to 30 degree, the tangent line of the plane of incidence 3 and the angle of positive Z axis are increased to 110 degree from 90 degree, at the emergent light of LED light source 1 and X-axis angle within the scope of 30 to 70 degree, the tangent line of the plane of incidence 3 and the angle of positive Z axis are decreased to 105 degree from 110 degree, at the emergent light of LED light source 1 and X-axis angle within the scope of 70 to 90 degree, the tangent line of the plane of incidence 3 and the angle of positive Z axis are increased to 140 degree from 105 degree, its index path is as Fig. 5, shown in Figure 10 and Figure 14, most of light l1 in the emergent light of LED light source 1 is first through the refraction generation One Diffusion Process of the plane of incidence 3, refraction generation secondary again through exit facet 2 spreads, thus it is far away that a spot light or approximate spot light are diffused into an irradiation distance, the hot spot of illuminance distribution, fraction light l2 simultaneously in emergent light can reflect when touching the plane of incidence 3 and exit facet 2, have among them through the side outgoing of primary event from lens unit 5, then in lens unit 5, there is multiple reflections or refraction in what have, from other surperficial outgoing of lens unit 5.The luminous intensity distribution figure of this LED street lamp neck unit 5 as shown in figure 15, is formed and levels off to the batswing tab hot spot of rectangular shape.But above configuration is only example, do not get rid of other angular ranges.
In the first preferred embodiment as shown in Figure 2, Figure 4 shows, the plane of incidence 3 is symmetrical about Y-axis, makes the road area to be illuminated territory on street lamp both sides roughly the same, and can produce the hot spot of rectangle.Preferably, in ZOY section, the utility model adopts the curved surface face type of the following configuration design plane of incidence 3, namely to spend and within the scope of 70 to 130 degree 0 to 30 at the emergent light of LED light source 1 and Y-axis angle, the Z-direction height of the plane of incidence 3 reduces along with Y-coordinate and increases, to spend and within the scope of 130 to 180 degree 30 to 70 at the emergent light of LED light source 1 and Y-axis angle, the Z-direction height of the plane of incidence 3 reduces along with Y-coordinate and reduces, its index path as shown in Figure 6, most of light l3 of the emergent light of LED light source 1 projects the plane of incidence 3 tending to the inclined luminous intensity distribution of positive Y-axis, continue to be transmitted to exit facet 2 in converging light after the refraction of the plane of incidence 3, disperse after exit facet 2 reflects again, and the fraction light l4 of emergent light can reflect when contacting with the plane of incidence 2 with exit facet 3, some reverberation reflect from the side of LED street lamp lens unit 5 and go out, have then in the inside of LED street lamp lens unit 5 after multiple reflections from other surperficial outgoing, thus it is even to form light distribution, the hot spot that irradiation is far away.Adopt the plane of incidence 3 curved surface face type of above-mentioned various configuration, the emergent light of LED light source 1 can be made to be that divergence form (as shown in Figure 5, Figure 6) is transmitted to place far away as far as possible on road broadcast.Be parallel to road direction, the emergent light of light source 1, through the light splitting of the plane of incidence 3, is uniformly distributed to street lamp both sides through exit facet 2; Perpendicular to road direction, the emergent light of light source 1 is through the inclined luminous intensity distribution of the plane of incidence 3, and the car lane direction towards road deflects, and realizes purposively luminous intensity distribution illumination partially.
In the second preferred embodiment as shown in Fig. 7, Fig. 9 and Figure 11, the plane of incidence is into the figure simultaneously about X-axis and Y-axis symmetry, thus the hot spot of outgoing is also roughly Central Symmetry, more attractive in appearance.In the configuration of this plane of incidence 3, in ZOY section, the plane of incidence is cambered surface, and bright dipping is roughly even, there will not be obviously bright than the another side of the road situation of road.Be parallel to road direction, the emergent light of light source 1, through the refraction of the arc plane of incidence 3, is uniformly distributed to street lamp both sides through exit facet 2; Perpendicular to road direction, the emergent light of light source 1, through the light splitting of the plane of incidence 3, irradiates the road under street lamp equally equably, finally produces a kind of oval hot spot.Wherein, in Figure 11, the propagation path of the emergent light of LED light source 1 is identical with Fig. 5 with principle.
In the 3rd preferred embodiment as shown in figure 12, the plane of incidence 3 is Rotational Symmetry figure, according to the actual requirements, the plane of incidence 3 of LED street lamp lens unit 5 can be designed to the curved surface possessing Rotational Symmetry feature, thus make the hot spot of outgoing be the special hot spot with Rotational Symmetry feature.The feature that the Z-direction height that it not only has the plane of incidence 3 in ZOX section reduces along with the absolute value increase of Y-coordinate, in ZOY section, there is this feature too, even further, in the 3rd preferred embodiment, any of the plane of incidence 3 all has this feature by O point perpendicular to the section of XY plane.Preferably, at emergent light and Y-axis angle within the scope of 0 to 30 degree, the tangent line of the plane of incidence and the angle of positive Z axis are increased to 110 degree from 90 degree; At emergent light and Y-axis angle within the scope of 30 to 70 degree, the tangent line of the plane of incidence and the angle of positive Z axis are decreased to 105 degree from 110 degree; At emergent light and Y-axis angle within the scope of 70 to 90 degree, the tangent line of the plane of incidence and the angle of positive Z axis are increased to 140 degree from 105 degree.Based on this configuration, light source 1 is through after the plane of incidence 3, and the propagation characteristic in its all directions is all substantially identical, and the road finally under street lamp presents a kind of circular light spot.
Preferably, this street lamp lens unit is total reflection lens, increases the light utilization efficiency of LED light source 1, strengthens the light intensity of hot spot, economize energy.
As shown in figure 16, the utility model discloses a kind of LED street lamp lens module, it comprises housing 4, and the LED street lamp lens unit 5 multiple mentioned above be fixed in housing 4, several LED street lamp lens units 5 are integrated, strengthen light intensity on the one hand, increase irradiated area on the other hand.
Preferably, LED street lamp lens unit 5 is arranged into lens arra, and the plane of incidence 3 of each LED street lamp lens unit 5 inclined luminous intensity distribution in the same direction, make the emergent light spot optical power detection of whole LED street lamp lens module, light spot shape is regular, attractive in appearance.
The invention also discloses a kind of street lamp, comprise and be located at driving module in housing and above-mentioned LED street lamp lens module, drive module driving LED street lamp lens module luminous, perpendicular to road direction realizes by make car lane be subject to more Multi-path lamp emergent light irradiate for the purpose of inclined luminous intensity distribution, realize even bright dipping being parallel on road direction.
Have employed after meeting LED street lamp lens unit 5 of the present utility model and street lamp lens module, the LED street lamp lens that use outer surface to be plane, can meet road lighting demand and facilitate processing, the cleaning of lens surface, light fixture flat appearance is good.In the LED street lamp lens unit 5 that the utility model uses, LED light source 1 emergent light received by the plane of incidence 3 height is in z-direction relevant with the angle of Y-axis, realizes a kind of comparatively even, road lighting that irradiation distance is wider.
Should be noted that, embodiment of the present utility model has preferably implementation, and not any type of restriction is done to the utility model, any person skilled in art of being familiar with may utilize the technology contents of above-mentioned announcement change or be modified to equivalent effective embodiment, in every case the content of technical solutions of the utility model is not departed from, the any amendment done above embodiment according to technical spirit of the present utility model or equivalent variations and modification, all still belong in the scope of technical solutions of the utility model.
Claims (14)
1. a LED street lamp lens unit, be located at the light-emitting window of a LED light source, it is characterized in that, comprise exit facet that shape is plane and shape is the plane of incidence of free form surface, with be parallel to described exit facet and plane through described LED light source be XY plane, with described LED light source for O point sets up a rectangular coordinate system OXYZ, in described rectangular coordinate system OXYZ, the positive Y-direction part of the described plane of incidence is more than or equal to negative Y-direction part, and the Z-direction height of the described plane of incidence changes along with the emergent light of described LED light source and the variable angle of Y-axis.
2. LED street lamp lens unit as claimed in claim 1, is characterized in that, the described plane of incidence is symmetrical about Y-axis.
3. LED street lamp lens unit as claimed in claim 2, it is characterized in that, in ZOY section, to spend and within the scope of 70 to 130 degree 0 to 30 at described emergent light and Y-axis angle, the Z-direction height of the described plane of incidence reduces along with Y-coordinate and increases, to spend and within the scope of 130 to 180 degree, the Z-direction height of the described plane of incidence reduces along with Y-coordinate and reduces 30 to 70 at described emergent light and Y-axis angle.
4. LED street lamp lens unit as claimed in claim 1, is characterized in that, the described plane of incidence is symmetrical about X-axis, simultaneously symmetrical about Y-axis.
5. LED street lamp lens unit as claimed in claim 4, it is characterized in that, in ZOY section, the described plane of incidence is cambered surface.
6. LED street lamp lens unit as claimed in claim 1, it is characterized in that, the described plane of incidence is Rotational Symmetry figure.
7. LED street lamp lens unit as claimed in claim 6, is characterized in that, in ZOY section, the Z-direction height of the described plane of incidence reduces along with the absolute value increase of Y-coordinate.
8. LED street lamp lens unit as claimed in claim 7, is characterized in that, at described emergent light and Y-axis angle within the scope of 0 to 30 degree, the tangent line of the described plane of incidence and the angle of positive Z axis are increased to 110 degree from 90 degree; At described emergent light and Y-axis angle within the scope of 30 to 70 degree, the tangent line of the described plane of incidence and the angle of positive Z axis are decreased to 105 degree from 110 degree; At described emergent light and Y-axis angle within the scope of 70 to 90 degree, the tangent line of the described plane of incidence and the angle of positive Z axis are increased to 140 degree from 105 degree.
9. the LED street lamp lens unit according to any one of claim 2 to 8, is characterized in that, in ZOX section, the Z-direction height of the described plane of incidence reduces along with the absolute value increase of X-coordinate.
10. LED street lamp lens unit as claimed in claim 9, is characterized in that, at described emergent light and X-axis angle within the scope of 0 to 30 degree, the tangent line of the described plane of incidence and the angle of positive Z axis are increased to 110 degree from 90 degree; At described emergent light and X-axis angle within the scope of 30 to 70 degree, the tangent line of the described plane of incidence and the angle of positive Z axis are decreased to 105 degree from 110 degree; At described emergent light and X-axis angle within the scope of 70 to 90 degree, the tangent line of the described plane of incidence and the angle of positive Z axis are increased to 140 degree from 105 degree.
11. LED street lamp lens units as claimed in claim 1, it is characterized in that, described LED street lamp lens unit is total reflection lens.
12. 1 kinds of LED street lamp lens modules, is characterized in that, comprise housing, and are fixed on the multiple LED street lamp lens units as described in any one of claim 1 to 11 in described housing.
13. LED street lamp lens modules as claimed in claim 12, it is characterized in that, described LED street lamp lens unit is arranged into lens arra, and the inclined luminous intensity distribution in the same direction of the plane of incidence of LED street lamp lens unit described in each.
14. 1 kinds of street lamps, is characterized in that, comprise and are located at the driving module in housing and the LED street lamp lens module as described in any one of claim 12 to 13, and described driving module drives described LED street lamp lens module luminous.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520421975.1U CN204730118U (en) | 2015-06-17 | 2015-06-17 | LED street lamp lens unit, module and there is the street lamp of this LED street lamp lens module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520421975.1U CN204730118U (en) | 2015-06-17 | 2015-06-17 | LED street lamp lens unit, module and there is the street lamp of this LED street lamp lens module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204730118U true CN204730118U (en) | 2015-10-28 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520421975.1U Withdrawn - After Issue CN204730118U (en) | 2015-06-17 | 2015-06-17 | LED street lamp lens unit, module and there is the street lamp of this LED street lamp lens module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204730118U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105156990A (en) * | 2015-06-17 | 2015-12-16 | 欧普照明股份有限公司 | Unit and module for LED street lamp lens, and street lamp with LED street lamp lens module |
| CN114263894A (en) * | 2021-12-31 | 2022-04-01 | 北京字节跳动网络技术有限公司 | Optical element, method and apparatus for constructing optical element, medium, and device |
-
2015
- 2015-06-17 CN CN201520421975.1U patent/CN204730118U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105156990A (en) * | 2015-06-17 | 2015-12-16 | 欧普照明股份有限公司 | Unit and module for LED street lamp lens, and street lamp with LED street lamp lens module |
| CN105156990B (en) * | 2015-06-17 | 2021-09-21 | 欧普照明股份有限公司 | LED street lamp lens unit, LED street lamp lens module and street lamp with LED street lamp lens module |
| CN114263894A (en) * | 2021-12-31 | 2022-04-01 | 北京字节跳动网络技术有限公司 | Optical element, method and apparatus for constructing optical element, medium, and device |
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Granted publication date: 20151028 Effective date of abandoning: 20210921 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20151028 Effective date of abandoning: 20210921 |
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |