CN205655240U - A LED street lamp lens for rural road illumination - Google Patents
A LED street lamp lens for rural road illumination Download PDFInfo
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- CN205655240U CN205655240U CN201620514844.2U CN201620514844U CN205655240U CN 205655240 U CN205655240 U CN 205655240U CN 201620514844 U CN201620514844 U CN 201620514844U CN 205655240 U CN205655240 U CN 205655240U
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- street lamp
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Abstract
The utility model belongs to the LED field of throwing light on, concretely relates to a LED street lamp lens for rural road illumination, lens body upper portion is light -emitting portion, does its surface curvature do 0.2~0.0258, the bottom central point of lens body puts and is equipped with interior step recess, cavity in interior step recess top is, and the free optics curved surface on the interior cavity is for going into light portion, does its surface curvature do 0.0097~1.9635, the lens body is followed its central longitudinal section and is bilateral symmetry, has a groove micro -structure in the income light portion, among each longitudinal section of lens body, each curved camber is from middle crescent to both sides in income light portion and the light -emitting portion, among each transverse section of lens body, from a side direction opposite side, the distance of going into between light portion and the light -emitting portion is crescent. Improved vertical irradiating range of LED street lamp through these lens, street lamp luminous efficiency is up to more than 91%, illuminance and brightness uniformity on the road, no zebra -stripe and yellow light ring.
Description
Technical field
This utility model relates to secondary optics LED illumination lens, is specifically related to a kind of LED road for backroad illumination
Lamp lens, belong to field of LED illumination.
Background technology
Existing LED street lamp lens are mainly used in city illumination, and its feature is less than for longitudinal C0 ° of-180 ° of angles
150 °, horizontal C90 ° of-270 ° of angles are at 80 ° about-100 °.But owing to the other road of township level mostly is bicycle road, and
Due to town government funds reason, the street lamp negligible amounts that usual road is arranged, street lamp post spacing is relatively big, many away from height ratio
For 6:1,7:1.Urban road glass lens is applied and is not reached at farm-to-market road longitudinal direction lighting angle, meeting during driver's driving at night
Zebra-stripe occur, and the light of lateral angles is wasted, specific aim is the strongest, it is impossible to reach best illuminating effect and luminous energy profit
Low by rate.
Utility model content
The technical problems to be solved in the utility model is: overcome deficiency of the prior art, it is provided that one can carry out weight to light
Newly distribute, light utilization, the LED street lamp lens for backroad illumination of reduction dazzle can be improved.
LED street lamp lens for backroad illumination described in the utility model, including lens body, lens body upper
Portion is the free optical surface of an evagination, and this curved surface is light out part, and its surface curvature is-0.2～0.0258；The end of lens body
Center, portion is provided with an interior stepped recesses that can accommodate LED light source chip, interior stepped recesses be arranged above an inner cavity, interior
Curved surface on cavity is free optical surface, and this curved surface is light in part, and its surface curvature is-0.0097～1.9635, on light in part
It is etched with some parallel bar groove micro structures；Lens body is symmetrical along its central longitudinal cross-section；Lens body each
In longitudinal cross-section, on light in part and light out part, each bent curvature of a curve is gradually increased to both sides from centre；Lens body each laterally
In cross section, from side to opposite side, on light in part, each bent curvature of a curve is gradually reduced, and on light out part, each bent curvature of a curve is gradually
Increasing, the distance between light in part and light out part is gradually increased.
In this utility model, owing to, in each longitudinal cross-section of lens body, on light in part and light out part, each bent curvature of a curve is therefrom
Between be gradually increased to both sides, so the optical index on this curved surface is also gradually increased from centre to both sides, parallel entrance beam
Through the refraction action of lens unit, form symmetrical uniform diffusion in the horizontal direction；Each lateral cross section of lens body
In, from side to opposite side, the distance between light in part and light out part is gradually increased, and light is by after incidence surface, always to thoroughly
The deviation over there that mirror is thicker, thickness is the biggest, and deviation is the biggest, makes lens form the uniform diffusion of deviation, light in the horizontal direction
Through this curved surface, form the light beam assembled in vertical direction.
Preferably, the optics high-boron-silicon glass material that described lens body uses refractive index to be 1.473, thermal coefficient of expansion is 3.3
Matter.Optics high-boron-silicon glass material refractive index is 1.473, can reach 92% with its lens light emission rate made；Thermal expansion
Coefficient is 3.3, is approximately 1/3rd of simple glass, this impact minimizing caused because of thermograde stress, thus has more
Strong break resistance.
Preferably, the degree of depth of described interior stepped recesses is 2.5mm, can accommodate a greater variety of LED light source.
Preferably, the width of each groove micro structure is 1mm, and the degree of depth is 0.23mm, on the basis of original, it is simple to
Increase regulation of longitudinal angle.
It is further preferred that described lens body go out that-180 ° of light intensity of light longitudinal direction C0 ° are symmetrical and half light intensity angle is
155 °～160 °, horizontal C90 °-270 ° light intensity asymmetric distribution and half light intensity angle are 60 °～65 °.
When actual design, it is positioned at central cross cross section, central longitudinal cross-section by constantly adjusting on light in part and light out part
On the radius of curvature of curve, it is possible to mix irradiating luminous flux distribution in different spatial angle range, autonomous distribution light source
Light intensity, efficiently controls light distribution shape, reaches to meet the light distribution that design requires, thus by LED street lamp lens on light
Redistribute, improve longitudinal irradiation distance of the street lamp using LED lens described in the utility model, be applied to lamp stand
When spacing and pole height ratio are on the road of 6:1,7:1, street lamp light extraction efficiency reaches more than 91%, the illumination on road
And brightness uniformity, without zebra-stripe, without yellow light ring, finally improve light utilization and lighting effect.
This utility model is compared with prior art had the beneficial effect that
The light of LED can be redistributed by LED street lamp lens described in the utility model, improve use
Longitudinal irradiation distance of the street lamp of this LED street lamp lens, is applied to lamp stand spacing and pole height ratio in the road of 6:1,7:1
Time on road, street lamp light extraction efficiency reaches more than 91%, the illumination on road and brightness uniformity, without zebra-stripe, without yellow light ring,
Finally improve light utilization and lighting effect.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model；
Fig. 2 is upward view of the present utility model；
Fig. 3 is the central longitudinal cross-section figure of lens body；
Fig. 4 is the central cross sectional view of lens body；
Fig. 5 is distribution curve flux of the present utility model.
In figure: 1, light out part；2, lens body；3, bottom；4, interior stepped recesses；5, bar groove micro structure；6、
Light in part；7, inner cavity.
Detailed description of the invention
Below in conjunction with the accompanying drawings embodiment of the present utility model is described further:
As shown in Figure 1 to 4, the LED street lamp lens for backroad illumination described in the utility model include that lens are originally
Body 2, the top of lens body 2 is the free optical surface of an evagination, and this curved surface is light out part 1, and its surface curvature is
-0.2～0.0258；The center, bottom 3 of lens body 2 is provided with an interior stepped recesses 4 that can accommodate LED light source chip,
Interior stepped recesses 4 be arranged above an inner cavity 7, the curved surface on inner cavity 7 is free optical surface, and this curved surface is light in part 6,
Its surface curvature is-0.0097～1.9635, and light in part 6 is etched with some parallel bar groove micro structures 5；Lens body 2
Symmetrical along its central longitudinal cross-section；In each longitudinal cross-section of lens body 2, each song on light in part 6 and light out part 1
Curvature of a curve is gradually increased to both sides from centre；In each lateral cross section of lens body 2, from side to opposite side, light in part
On 6, each bent curvature of a curve is gradually reduced, and on light out part 1, each bent curvature of a curve is gradually increased, light in part 6 and light out part 1 it
Between distance be gradually increased.In the present embodiment, lens body 2 uses refractive index to be 1.473, thermal coefficient of expansion is the light of 3.3
Learn high-boron-silicon glass material；The degree of depth of interior stepped recesses 4 is 2.5mm；The width of each groove micro structure 5 is 1mm,
The degree of depth is 0.23mm.
Due in each longitudinal cross-section of lens body 2, on light in part 6 and light out part 1 each bent curvature of a curve from centre to both sides
Being gradually increased, so the optical index on this curved surface is also gradually increased from centre to both sides, parallel entrance beam is through lens
The refraction action of unit, forms symmetrical uniform diffusion in the horizontal direction；In each lateral cross section of lens body 2, from
Side is gradually increased to the distance between opposite side, light in part 6 and light out part 1, and light is by after incidence surface, always to lens
Thicker deviation over there, thickness is the biggest, and deviation is the biggest, makes lens form the uniform diffusion of deviation, light warp in the horizontal direction
Cross this curved surface, form the light beam assembled in vertical direction.
When actual design, it is positioned at central cross cross section, central longitudinal cross-section by constantly adjusting on light in part and light out part
On the radius of curvature of curve, it is possible to mix irradiating luminous flux distribution in different spatial angle range, autonomous distribution light source
Light intensity, efficiently controls light distribution shape, reaches to meet the light distribution that design requires.The present embodiment is adjusted, obtains
Following light distribution: lens body 2 go out that-180 ° of light intensity of light longitudinal direction C0 ° are symmetrical and half light intensity angle is 158 °,
C90 °-270 ° realize low-angle luminous intensity distribution, horizontal light intensity asymmetric distribution and half light intensity angle is 60 °, concrete distribution curve flux
As shown in Figure 5.
Light can be redistributed by above-mentioned LED street lamp lens, improve use this utility model LED lens
Longitudinal irradiation distance of street lamp, be applied to lamp stand spacing and pole height ratio on the road of 6:1,7:1 time, street lamp goes out
Light efficiency reaches more than 91%, the illumination on road and brightness uniformity, without zebra-stripe, without yellow light ring, finally improves light
Line use ratio and lighting effect.
Claims (5)
1. the LED street lamp lens for backroad illumination, it is characterised in that: include lens body (2), lens
The top of body (2) is the free optical surface of an evagination, and this curved surface is light out part (1), and its surface curvature is-0.2～0.0258；
Bottom (3) center of lens body (2) is provided with an interior stepped recesses (4) that can accommodate LED light source chip, interior
Rank groove (4) be arranged above an inner cavity (7), the curved surface on inner cavity (7) is free optical surface, and this curved surface is for entering
Light portion (6), its surface curvature is-0.0097～1.9635, and light in part (6) has some parallel bars groove micro structure (5)；
Lens body (2) is symmetrical along its central longitudinal cross-section；
In each longitudinal cross-section of lens body (2), light in part (6) and light out part (1) the most each upper bent curvature of a curve from centre to
Both sides are gradually increased；
In each lateral cross section of lens body (2), from side to opposite side, the upper each bent curvature of a curve of light in part (6) is gradually
Reducing, the upper each bent curvature of a curve of light out part (1) is gradually increased, and the distance between light in part (6) and light out part (1) is gradually
Increase.
LED street lamp lens for backroad illumination the most according to claim 1, it is characterised in that: described
The optics high-boron-silicon glass material that lens body (2) uses refractive index to be 1.473, thermal coefficient of expansion is 3.3.
LED street lamp lens for backroad illumination the most according to claim 1, it is characterised in that: described
The degree of depth of interior stepped recesses (4) is 2.5mm.
LED street lamp lens for backroad illumination the most according to claim 1, it is characterised in that: each
The width of groove micro structure is 1mm, and the degree of depth is 0.23mm.
5., according to the LED street lamp lens for backroad illumination described in claim 1,2,3 or 4, its feature exists
Go out that-180 ° of light intensity of light longitudinal direction C0 ° are symmetrical and half light intensity angle is 155 ° in: described lens body (2)
～160 °, horizontal C90 °-270 ° light intensity asymmetric distribution and half light intensity angle are 60 °～65 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620514844.2U CN205655240U (en) | 2016-05-31 | 2016-05-31 | A LED street lamp lens for rural road illumination |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620514844.2U CN205655240U (en) | 2016-05-31 | 2016-05-31 | A LED street lamp lens for rural road illumination |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205655240U true CN205655240U (en) | 2016-10-19 |
Family
ID=57405623
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620514844.2U Expired - Fee Related CN205655240U (en) | 2016-05-31 | 2016-05-31 | A LED street lamp lens for rural road illumination |
Country Status (1)
| Country | Link |
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| CN (1) | CN205655240U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107023787A (en) * | 2017-05-27 | 2017-08-08 | 欧普照明股份有限公司 | light distribution element, light source module and lighting device |
| CN107023786A (en) * | 2017-05-27 | 2017-08-08 | 欧普照明股份有限公司 | light distribution element, light source module and lighting device |
| CN110186012A (en) * | 2019-04-30 | 2019-08-30 | 上海智光慧芯照明科技有限公司 | A kind of LED module lens |
| CN110185982A (en) * | 2019-04-24 | 2019-08-30 | 上海笙荣森电子有限公司 | The blackboard lights of the low dazzle of high evenness high photosynthetic efficiency |
| CN111288370A (en) * | 2020-03-04 | 2020-06-16 | 浙江骏马智创科技股份有限公司 | Road lighting LED lamp |
| CN111350974A (en) * | 2018-12-24 | 2020-06-30 | 光宝电子(广州)有限公司 | Light source module |
| CN113606506A (en) * | 2021-07-02 | 2021-11-05 | 深圳市海洋王照明工程有限公司 | Polarized lens LED lamp |
-
2016
- 2016-05-31 CN CN201620514844.2U patent/CN205655240U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107023787A (en) * | 2017-05-27 | 2017-08-08 | 欧普照明股份有限公司 | light distribution element, light source module and lighting device |
| CN107023786A (en) * | 2017-05-27 | 2017-08-08 | 欧普照明股份有限公司 | light distribution element, light source module and lighting device |
| CN111350974A (en) * | 2018-12-24 | 2020-06-30 | 光宝电子(广州)有限公司 | Light source module |
| CN110185982A (en) * | 2019-04-24 | 2019-08-30 | 上海笙荣森电子有限公司 | The blackboard lights of the low dazzle of high evenness high photosynthetic efficiency |
| CN110186012A (en) * | 2019-04-30 | 2019-08-30 | 上海智光慧芯照明科技有限公司 | A kind of LED module lens |
| CN111288370A (en) * | 2020-03-04 | 2020-06-16 | 浙江骏马智创科技股份有限公司 | Road lighting LED lamp |
| CN113606506A (en) * | 2021-07-02 | 2021-11-05 | 深圳市海洋王照明工程有限公司 | Polarized lens LED lamp |
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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 |
Granted publication date: 20161019 Termination date: 20210531 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |