CN204922843U - High illuminance uniformity LED street lamp lens in high brightness uniformity degree pavement of runway - Google Patents
High illuminance uniformity LED street lamp lens in high brightness uniformity degree pavement of runway Download PDFInfo
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- CN204922843U CN204922843U CN201520460377.5U CN201520460377U CN204922843U CN 204922843 U CN204922843 U CN 204922843U CN 201520460377 U CN201520460377 U CN 201520460377U CN 204922843 U CN204922843 U CN 204922843U
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Abstract
The utility model discloses a high illuminance uniformity LED street lamp lens in high brightness uniformity degree pavement of runway, including emitting face and incident surface, the emitting face is at least including two curved surface districts, the incident surface with the curved surface district is free -form surface, have the common point that is located different curved surfaces district simultaneously on the emitting face, contain same common point each curved surface district process each tangent plane of same common point does not coincide each other. The utility model also discloses a lens, including incident surface and emitting face, the incident surface is at least including two curved surface districts, the emitting face with the curved surface district is free -form surface, have the common point that is located different curved surfaces district simultaneously on the incident surface, contain same common point each curved surface district process each tangent plane of same common point does not coincide each other.
Description
Technical field
The utility model relates to field of LED illumination, particularly relates to a kind of runway high brightness uniformity pavement height uniformity of illuminance LED street lamp lens.
Background technology
The nineties in last century and the beginning of this century, the luminous intensity distribution of LED street lamp light fixture pursues high uniformity of illuminance, but this luminous intensity distribution finds that there is obvious irregularity in brightness when practical application, and road there will be significantly " zebra-stripe phenomenon ".Its basic reason is that the luminance factor value of diverse location on road is different, and the luminance factor value put under lamp is relatively little, and the luminance factor value between two lamps is relatively large, and when the uniformity of illuminance on road surface is higher, its luminance uniformity is often on the low side.
In recent years, along with the development to the more deep research of LED road lighting and correlation technique, the luminous intensity distribution of LED street lamp light fixture more trends towards pursuing high luminance uniformity, it can provide to driver evenly with comfortable road lighting effect.Be worth proposing: the factor played a crucial role to the illuminating effect of runway in road lighting is luminance uniformity, but be uniformity of illuminance for the factor that the illuminating effect on pavement plays a crucial role.
At present, LED roads light, owing to pursuing higher luminance uniformity to runway, often causes the uniformity of illuminance on pavement on the low side.Although two lamps can be adopted to meet the luminance uniformity demand of runway and the uniformity of illuminance demand on pavement respectively, correspondingly, cost also can be higher.Thus, realize the high brightness uniformity required for runway and the higher illuminance uniformity required for pavement by a lamp simultaneously, be those skilled in the art faced by technical problem.
Utility model content
Lens provided by the utility model are used for solving the problem, its be applied to LED roads light throw light on time, while providing the high brightness uniformity to runway, also can provide the higher illuminance uniformity to pavement.
A kind of lens that the utility model provides comprise exit facet and the plane of incidence, and described exit facet at least comprises two curved regions, and the described plane of incidence and described curved regions are level and smooth free form surface; Described exit facet has the common point being simultaneously positioned at different curve district, each described curved regions comprising same common point does not overlap mutually through each tangent plane of described same common point.
Further, each described curved regions forms two-way collector lens effect with the described plane of incidence respectively, forms the structure with two-way collector lens effect in other words.
Further, described exit facet at least comprises three described curved regions, and wherein at least two described curved regions form two-way collector lens effect with the described plane of incidence respectively, forms the structure with two-way collector lens effect in other words.
Further, the curved surface pattern of curved regions described at least one is arranged according to illumination requirement, uniformity of illuminance more than 0.4.
Further, the curved surface pattern of curved regions described at least one is arranged according to brightness requirement, the total brightness uniformity more than 0.4, longitudinal luminance uniformity more than 0.7.
The another kind of lens that the utility model provides, comprise the plane of incidence and exit facet, it is characterized in that, the described plane of incidence at least comprises two curved regions, and described exit facet and described curved regions are level and smooth free form surface; The described plane of incidence has the common point being simultaneously positioned at different curve district, each described curved regions comprising same common point does not overlap mutually through each tangent plane of described same common point.
Further, each described curved regions forms two-way collector lens effect with described exit facet respectively, forms the structure with two-way collector lens effect in other words.
Further, the described plane of incidence at least comprises three described curved regions, and wherein at least two described curved regions form two-way collector lens effect with described exit facet respectively, forms the structure with two-way collector lens effect in other words.
Further, the curved surface pattern of curved regions described at least one meets illumination requirement, uniformity of illuminance more than 0.4.
Further, the curved surface pattern of curved regions described at least one meets brightness requirement, the total brightness uniformity more than 0.4, longitudinal luminance uniformity more than 0.7.
Lens Design is be provided with multiple region with two-way collector lens effect by the utility model, thus in signal-lens structure, can realize the effect that multiple lens are combined, and has broken the inertia Design Thinking of the single illuminating effect of single lens.The region specific implementation of multiple two-way collector lens effect for the multiple distribution of emitting light path, and can regulate luminance uniformity or the uniformity of illuminance of regional (multiple light path distribution) as required respectively.
Do, into one, there is step below with reference to the technique effect of accompanying drawing to design of the present utility model, concrete structure and generation to illustrate, to understand the purpose of this utility model, characteristic sum effect fully.
Accompanying drawing explanation
Fig. 1 is the structural representation of embodiment one of the present utility model;
Fig. 2 is another structural representation of embodiment one of the present utility model, shows exit facet;
Fig. 3 is the top view of lens in Fig. 1;
Fig. 4 be Fig. 3 along A-A to sectional view;
Fig. 5 be Fig. 3 along B-B to sectional view;
Fig. 6 is the index path of Fig. 5 sectional view;
Fig. 7 is the hot spot design sketch of the LED street lamp using lens in Fig. 1;
Fig. 8 is the structural representation of embodiment two of the present utility model;
Fig. 9 is the top view of lens in Fig. 7;
Figure 10 is the structural representation of embodiment three of the present utility model;
Figure 11 is the bottom view of lens in Figure 10.
Detailed description of the invention
Embodiment one
Fig. 1 ~ Fig. 3 shows the structural representation of a preferred embodiment of the present utility model, and wherein lens 1 comprise exit facet 11 and the plane of incidence 12, can place the light source (as LED light source) for throwing light on by the plane of incidence 12 in the cavity limited.Exit facet 11 comprises two parts, and be curved surface 111 and curved surface 112 respectively, both are the level and smooth free form surfaces respectively with respective curvature, thus both intersections do not seamlessly transit.In other words, for any point on the intersecting lens 100 of curved surface 111 and curved surface 112, the tangent plane that curved surface 111 and curved surface 112 are selected respectively through this does not overlap mutually.But by making it seamlessly transit, with the present embodiment without any essential distinction to the fillet process of transition position.
As shown in Figure 4, lens 1 are symmetrically arranged on this section, and known lens 1 are the symmetrical structures in face centered by the B-B section in Fig. 3.
As shown in Figure 5, lens 1 right and wrong on this section are symmetrically arranged, can see, the plane of incidence 12 is closer to this end of curved surface 112, and curved surface 111 and curved surface 112 have visibly different curvature.Curved surface 111 and the plane of incidence 12 form the lens area with two-way collector lens effect jointly, and curved surface 112 and the plane of incidence 12 form the lens area with two-way collector lens effect jointly.
Fig. 6 shows the index path of Fig. 5 sectional view, and wherein LED light source 100 is placed in the cavity that curved surface 112 limits, and the light sent by LED light source 100 is injected in lens 1 from the plane of incidence 12, and penetrates from curved surface 111 and curved surface 112.Because curved surface 111 and curved surface 112 define the lens area with two-way collector lens with the plane of incidence 12 respectively, thus than having the lens exit facet of continuously smooth transition, the light penetrated from curved surface 111 and curved surface 112 is divided into two parts with having tendentiousness, achieves and is separated emergent ray according to different field of illuminations.In the present embodiment, be set up from the light of curved surface 111 outgoing and be applied to runway region, be set up from the light of curved surface 112 outgoing and be applied to region, pavement.For above-mentioned application, the concrete pattern of curved surface 111 can design according to brightness demand (also comprising the pattern of the plane of incidence 12 if desired), to meet the requirement of runway region for the high brightness uniformity, the concrete pattern of curved surface 112 can design according to illumination requirement (also comprising the pattern of the plane of incidence 12 if desired), to meet the requirement of region, pavement for the higher illuminance uniformity.
The topographic design of each curved surface is not described in detail at this, for a person skilled in the art, more than design uses routine techniques means to realize, and can utilize TRACEPRO software, by 3D modeling in conjunction with optical analog, and the curved surface adjusting lens continued to optimize.The utility model is intended to provide a kind of on single lens, form different exit area design philosophy and relevant lens arrangement (being not limited to shown structure herein).
Due in road lighting, road surface difference has different luminance factor values, the luminance factor value put under lamp is relatively little, luminance factor value between two lamps is relatively large, in order to ensure that runway has higher luminance uniformity must reduce brightness value between two lamps, so just cause the lighting environment that uniformity of illuminance is lower.
In road lighting, pedestrian and the requirement of driver to road lighting are different, and the key factor of driver's evaluation path illuminating effect is the brightness case in the region, runway road surface of front 60m ~ 100m.But for pedestrian, because its sight line is not fixed, viewing distance and viewing area are relatively little, therefore for pedestrian, the key factor evaluating illuminating effect is the uniformity of illuminance in region, pavement.
Fig. 7 shows the actual illumination hot spot figure of the LED street lamp using lens 1, wherein the roadside of the corresponding road of the 0-0 of horizontal direction, and 0-0 lower zone is the region comprising pavement, for comprising the region of runway above 0-0.Obviously can find out from figure, the light that LED light source sends, be divided into two parts after lens.The light being irradiated to runway region can be driver provides the total brightness uniformity more than 0.4, the vehicling lighting environment of longitudinal luminance uniformity more than 0.7, and the light being irradiated to region, pavement can be the pavement lighting environment that pedestrian provides uniformity of illuminance more than 0.4.
The bulk material of lens 1 includes but not limited to the transparent materials such as PMMA (polymethyl methacrylate), PC (Merlon), glass, silica gel.
Embodiment two
Fig. 8 and Fig. 9 shows the structural representation of another preferred embodiment of the present utility model, and wherein lens 2 comprise exit facet 21 and the plane of incidence 22, can place the light source (as LED light source) for throwing light on by the plane of incidence 22 in the cavity limited.Exit facet 21 comprises three parts, is curved surface 211, curved surface 212 and curved surface 213 respectively, and three is the smooth free form surface respectively with respective curvature, thus curved surface 211 does not seamlessly transit with the intersection of curved surface 212 and curved surface 213 respectively.In other words, for any point on the intersecting lens 200 of curved surface 211 and curved surface 212, the tangent plane that curved surface 211 and curved surface 212 are selected respectively through this does not overlap mutually; For any point on the intersecting lens 201 of curved surface 211 and curved surface 213, the tangent plane that curved surface 211 and curved surface 213 are selected respectively through this does not overlap mutually.But by making it seamlessly transit, with the present embodiment without any essential distinction to the fillet process of transition position.
Curved surface 211 and the plane of incidence 22 form the lens area with two-way collector lens effect jointly, curved surface 212 and the plane of incidence 22 form the lens area with two-way collector lens effect jointly, and curved surface 213 and the plane of incidence 22 form the lens area with two-way collector lens effect jointly.
In the present embodiment, be set up from the light of curved surface 211 outgoing and be applied to runway region, be set up from the light of curved surface 212 and curved surface 213 outgoing and be applied to region, pavement.For above-mentioned application, the concrete pattern of curved surface 211 can design according to brightness demand (also comprising the pattern of the plane of incidence 12 if desired), to meet the requirement of runway region for the high brightness uniformity, the concrete pattern of curved surface 212 and curved surface 213 can design according to illumination requirement (also comprising the pattern of the plane of incidence 12 if desired), to meet the requirement of region, pavement for the higher illuminance uniformity.
The bulk material of lens 2 includes but not limited to the transparent materials such as PMMA (polymethyl methacrylate), PC (Merlon), glass, silica gel.
The design principle of lens 2 is identical with the lens 1 in embodiment 1, is only the lens area for illumination region, pavement to be set to two (curved surface 212 and curved surfaces 213), and the explanation for illuminating effect can reference example one, does not repeat them here.
Embodiment three
Figure 10 and Figure 11 shows the structural representation of another preferred embodiment of the present utility model, and wherein lens 3 comprise exit facet 31 and the plane of incidence 32, can place the light source (as LED light source) for throwing light on by the plane of incidence 32 in the cavity limited.With embodiment one and two unlike, in the present embodiment, the plane of incidence 32 is divided into multiple region, wherein the plane of incidence 32 comprises three parts, curved surface 321, curved surface 322 and curved surface 323 respectively, three is the smooth free form surface respectively with respective curvature, thus the intersection between two of three does not seamlessly transit.In other words, for any point on the intersecting lens 300 of curved surface 321 and curved surface 322, the tangent plane that curved surface 321 and curved surface 322 are selected respectively through this does not overlap mutually; For any point on the intersecting lens 301 of curved surface 321 and curved surface 323, the tangent plane that curved surface 321 and curved surface 323 are selected respectively through this does not overlap mutually; For any point on the intersecting lens 302 of curved surface 322 and curved surface 323, the tangent plane that curved surface 322 and curved surface 323 are selected respectively through this does not overlap mutually.But by making it seamlessly transit, with the present embodiment without any essential distinction to the fillet process of transition position.
Curved surface 321 and exit facet 31 form the lens area with two-way collector lens effect jointly, curved surface 322 and exit facet 31 form the lens area with two-way collector lens effect jointly, and curved surface 323 and exit facet 31 form the lens area with two-way collector lens effect jointly.
In the present embodiment, be set up through the incident and light penetrating lens 3 of curved surface 321 and be applied to runway region, be set up through curved surface 322 and the incident and light penetrating lens 3 of curved surface 323 respectively and be applied to region, pavement.For above-mentioned application, the concrete pattern of curved surface 321 can design according to brightness demand (also comprising the pattern of exit facet 31 if desired), to meet the requirement of runway region for the high brightness uniformity, the concrete pattern of curved surface 322 and curved surface 323 can design according to illumination requirement (also comprising the pattern of exit facet 31 if desired), to meet the requirement of region, pavement for the higher illuminance uniformity.
The bulk material of lens 3 includes but not limited to the transparent materials such as PMMA (polymethyl methacrylate), PC (Merlon), glass, silica gel.
The design principle of lens 3 is similar to the embodiment of two before, and difference is, by multiple curved surface area to be arranged on the plane of incidence but not on exit facet, this set can reach technique effect of the present utility model equally.
In addition, based on design philosophy of the present utility model, equally also respectively multiple curved surface area can be set on the plane of incidence and exit facet, but such setting increase accordingly the difficulty of Design and manufacture, only alternatively propose at this.
More than describe preferred embodiment of the present utility model in detail.Should be appreciated that those of ordinary skill in the art just can make many modifications and variations according to design of the present utility model without the need to creative work.Therefore, all technical staff in the art according to design of the present utility model on the basis of existing technology by the available technical scheme of logical analysis, reasoning, or a limited experiment, all should by the determined protection domain of claims.
Claims (10)
1. a runway high brightness uniformity pavement height uniformity of illuminance LED street lamp lens, comprise exit facet and the plane of incidence, it is characterized in that, described exit facet at least comprises two curved regions, and the described plane of incidence and described curved regions are level and smooth free form surface; Described exit facet has the common point being simultaneously positioned at different curve district, each described curved regions comprising same common point does not overlap mutually through each tangent plane of described same common point.
2. lens as claimed in claim 1, it is characterized in that, each described curved regions forms the structure with two-way collector lens effect with the described plane of incidence respectively.
3. lens as claimed in claim 1, it is characterized in that, described exit facet at least comprises three described curved regions, and wherein at least two described curved regions form the structure with two-way collector lens effect with the described plane of incidence respectively.
4. lens as claimed in claim 1, it is characterized in that, the curved surface pattern of curved regions described at least one meets illumination requirement.
5. lens as claimed in claim 1, it is characterized in that, the curved surface pattern of curved regions described at least one meets brightness requirement.
6. a runway high brightness uniformity pavement height uniformity of illuminance LED street lamp lens, comprise the plane of incidence and exit facet, it is characterized in that, the described plane of incidence at least comprises two curved regions, and described exit facet and described curved regions are level and smooth free form surface; The described plane of incidence has the common point being simultaneously positioned at different curve district, each described curved regions comprising same common point does not overlap mutually through each tangent plane of described same common point.
7. lens as claimed in claim 6, it is characterized in that, each described curved regions forms the structure with two-way collector lens effect with described exit facet respectively.
8. lens as claimed in claim 6, it is characterized in that, the described plane of incidence at least comprises three described curved regions, and wherein at least two described curved regions form the structure with two-way collector lens effect with described exit facet respectively.
9. lens as claimed in claim 6, it is characterized in that, the curved surface pattern of curved regions described at least one meets illumination requirement.
10. lens as claimed in claim 6, it is characterized in that, the curved surface pattern of curved regions described at least one meets brightness requirement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520460377.5U CN204922843U (en) | 2015-06-30 | 2015-06-30 | High illuminance uniformity LED street lamp lens in high brightness uniformity degree pavement of runway |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520460377.5U CN204922843U (en) | 2015-06-30 | 2015-06-30 | High illuminance uniformity LED street lamp lens in high brightness uniformity degree pavement of runway |
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| CN204922843U true CN204922843U (en) | 2015-12-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520460377.5U Active CN204922843U (en) | 2015-06-30 | 2015-06-30 | High illuminance uniformity LED street lamp lens in high brightness uniformity degree pavement of runway |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104949066A (en) * | 2015-06-30 | 2015-09-30 | 上海睿铄光电科技有限公司 | LED street lamp lens high in traffic lane luminance uniformity and high in sidewalk luminance uniformity |
-
2015
- 2015-06-30 CN CN201520460377.5U patent/CN204922843U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104949066A (en) * | 2015-06-30 | 2015-09-30 | 上海睿铄光电科技有限公司 | LED street lamp lens high in traffic lane luminance uniformity and high in sidewalk luminance uniformity |
| CN104949066B (en) * | 2015-06-30 | 2018-11-23 | 上海睿铄光电科技有限公司 | Runway high brightness uniformity pavement high illumination uniformity LED street lamp lens |
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