CN205155845U - LED street lamp lamp shade with grading function - Google Patents
LED street lamp lamp shade with grading function Download PDFInfo
- Publication number
- CN205155845U CN205155845U CN201520844120.XU CN201520844120U CN205155845U CN 205155845 U CN205155845 U CN 205155845U CN 201520844120 U CN201520844120 U CN 201520844120U CN 205155845 U CN205155845 U CN 205155845U
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- light
- lamp shade
- led
- distributing function
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Abstract
The utility model belongs to the semiconductor lighting field specifically is a LED street lamp lamp shade with grading function. The utility model discloses a LED street lamp lamp shade can carry out the grading to the LED area source, being on a parallel with the open the light laser angle in source of garage's orientation pull -up, realizes the wing light distribution curve of bat, realize asymmetric light distribution curve in perpendicular to garage direction, reduce the proportion of outer (room limit) the light of road, the smooth utilization ratio of improvement lamps and lanterns. One end that the lamp shade is close to the lamp pole adopts high reflectivity's material or coating, reduces the illumination on room limit, makes more light strucks to the road. The lamp shade is multiple lens composition's an effect along the cross -section of lamps and lanterns minor axis directions (being on a parallel with garage's direction): the internal and external surface of both sides has constituted two big convex lens, produces the wing light distribution curve of bat along garage's orientation, a plurality of prisms of surface distribution or cylindrical mirror in the central part can further pull open the laser angle of LED area source. The lamp shade can be integral, also can make up the formula.
Description
Technical field
The utility model belongs to technical field of semiconductor illumination, is specifically related to a kind of LED road lamp shade with light distributing function.
Background technology
Along with country is to the pay attention to day by day of energy-saving and emission-reduction, lighting energy saving improvement project becomes increasingly important.And nearly semiconductor illumination technique is during the last ten years fast-developing, efficient, energy-conservation, the long-life advantage of LED, becomes the inexorable trend of road lighting development.Nowadays, LED street lamp is widely applied gradually, and pilot project is nationwide.
LED street lamp light fixture is generally half space bright dipping, mainly comprises LED light source (or packaging), secondary light-distribution device, driver, radiator and shell; Secondary light-distribution device is the one or more combination in reflector, lens, prism and lampshade.
In order to meet all standard requirement of road lighting, rational luminous intensity distribution design must be carried out to street lamp.Because single led chip is the spot light that light-emitting area is very little, when being therefore designed to high-power LED street lamp, encapsulating structure, specifications and models etc. that each manufacturer adopts are all different, and lampshade or the lens arrangement of the LED street lamp be thereupon equipped with also emerge in an endless stream.Normally carry out luminous intensity distribution design at single led packaging surface mounted lens at present, a LED street lamp is installed the LED device of multiple band lens, the lamp distribution curve needed for formation.CN201410193097.2 have employed the lampshade of an inner surface belt light distribution surface to carry out secondary optical design, but on inner surface, each light distribution surface is also corresponding with single led chip, in fact still carries out luminous intensity distribution to one single chip.
Single led brightness is higher.In light fixture, multiple LED chip or packaging are installed simultaneously, corresponding multiple luminous bright spot can be produced, cause dazzle, affect the comfortableness of vision.And LED area light source module adopts overall fluorescent plate or even tabula rasa, therefore light source is more even, and can not produce obvious bright spot, people glances up more comfortable soft.But area source is merely able to form cosine luminous intensity distribution usually, when the ratio (apart from high ratio) of the Distance geometry pole height of adjacent lamp stand is larger, often can not meet the requirement of road illumination standards to mean flow rate and longitudinal luminance uniformity, need to carry out secondary light-distribution to it.
CN201110000998.1 proposes the lampshade that a kind of inner surface is made up of regularly arranged some convex lens, can carry out overall luminous intensity distribution to LED light source.CN201120255375.4 proposes the lampshade that a kind of upper surface is smooth flat, lower surface has one group of linear condenser lens group face, also can simplify the luminous intensity distribution design of LED street lamp, reduce costs.These two kinds of lens can both improve illumination efficiency and the quality of lighting of light fixture, but can't meet the light distribution requirements of LED area light source.
CN201110034544.6 proposes a kind of area source lens arrangement, the exiting surface of its outward appearance is peanut shell-shaped, basal plane is recessed to form light inlet cell array to exiting surface direction, and each light inlet unit has the incidence surface in Rotational Symmetry curve form to exiting surface direction depression.This lens arrangement is complicated, makes difficulty, and the luminous intensity distribution produced is full symmetric, larger to the illumination loss on limit, room.
Summary of the invention
The purpose of this utility model is to provide a kind of structure LED road lamp shade with light distributing function simple, easy to make, can either meet the related request of road illumination standards, can improve again the light utilization efficiency of light fixture, improve the illuminating effect of light fixture.
The LED road lamp shade of what the utility model provided have light distributing function, can carry out luminous intensity distribution to LED area light source, the beam angle in source of opening the light in light fixture short-axis direction (being namely parallel to garage direction) pull-up, realizes bat-wing distribution curve flux; Light fixture long axis direction (namely perpendicular to garage direction) realizes asymmetrical distribution curve flux, reduces the ratio of outer (limit, the room) light of road, improve the light utilization efficiency of light fixture.
In the utility model, described lampshade is the result of multiple lens combination along the cross section of light fixture short-axis direction.Described cross section is made up of the bus on inside and outside surface, and described two buses are free curve.
Further, described inner surface bus is segmented, and every section forms the lens of different focal, better to realize light distributing function with outer surface bus.
Further, described lampshade is the column convex lens be made up of described inside and outside surperficial bus along the both sides in the cross section of light fixture short-axis direction, the beam angle of LED area light source can be pulled open to both sides, produces bat-wing distribution curve flux along garage direction.
Further, the core in described cross section distributes some prisms or cylindrical mirror on an internal surface, and its raised face is towards LED area light source; Described prism or cylindrical lens structure can pull open the beam angle of LED area light source further.
In the utility model, described lampshade is symmetrical structure along the cross section of light fixture long axis direction, and its two sides are convex surface or plane, near material or the coating of an employing high reflectance of lamp stand, reduces the illumination on limit, room, more illumination is mapped on road.
Further, described lampshade is non-symmetrical structure along the cross section of light fixture long axis direction, and the side away from lamp stand is convex surface, is plane near the side of lamp stand.
In the utility model, regulate the light out-degree of described area source to distribute, the largest light intensity angle of the bat-wing luminous intensity distribution that described lens produce can be changed.
In the utility model, described LED lamp cover can be all-in-one-piece, also can be formed by multiple lampshade block combiner.
The LED road lamp shade with light distributing function of the present utility model, achieves the functional luminous intensity distribution to area source, and the beam angle solving area source is difficult to the problem adjusted.For the area source of out-degree distribution of not sharing the same light, the largest light intensity angle that lampshade of the present utility model is formed is variable.Lampshade of the present utility model mixed by the area source of different model, can realize various distribution curve flux, because this reducing the cost of the exploitation of lampshade mould in light fixture product development process.
Accompanying drawing explanation
Fig. 1 is a kind of appearance assumption diagram with the LED road lamp shade of light distributing function of the present utility model.
Fig. 2 is a kind of cut-away view with the LED road lamp shade of light distributing function of the present utility model.
Fig. 3 is a kind of installation design sketch with the LED road lamp shade of light distributing function of the present utility model.
Fig. 4 is a kind of sectional view along light fixture short-axis direction with the LED road lamp shade of light distributing function of the present utility model.
Fig. 5 is a kind of sectional view along light fixture long axis direction with the LED road lamp shade of light distributing function of the present utility model.
Number in the figure: 1-lampshade away from lamp stand end, 2-lampshade near lamp stand end, 3-side convex lens, 4-prism, 5-frame.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is described further.Described embodiment is only section Example of the present utility model.Do not make other all embodiments of creative achievement based on the embodiment in the utility model, all belong to protection domain of the present utility model.
Have a LED road lamp shade for light distributing function, can carry out luminous intensity distribution to LED area light source, its surface structure and internal structure are respectively as shown in Figure 1 and Figure 2.This lampshade is an all-in-one-piece lampshade, adopts the casting of high-transmission rate hard glass to make, and has carried out tempering.The installation direction of this lampshade on street lamp and installation effect are as shown in Figure 3.
Fig. 4 is the sectional view of described lampshade along light fixture short-axis direction.As can be seen from the figure, the distribution curve flux of described light fixture on parallel garage direction is multiple lens combination result.On this cross section, direction, the surfaces externally and internally of lampshade both sides constitutes two large convex lens 3, can pull open the beam angle of LED area light source on garage direction, realize bat-wing luminous intensity distribution.And lampshade mid portion, outer surface is plane, and inner surface is distributed with the cylindrical mirror 4 that several cross sections be parallel to each other are semicircle, and its raised face, towards LED area light source, can pull open the beam angle on garage direction further.There is the outer rim 5 of a circle entirety in the outside of lampshade, can be used for compressing lampshade when being arranged on light fixture.
As can be seen from the sectional view along long axis direction of Fig. 5, described lampshade is symmetrical structure, and both sides are convex surface, can pull open beam angle.And the coating of an employing high reflectance of close lamp stand, the illumination on limit, room can be reduced, and these light are reflected back road surface, improve the light utilization efficiency of light fixture.
LED street lamp light fixture adopts this lampshade, employing monolithic power 10W, area are the LED area light source module of 132mm × 66mm, with the area source of 6 pieces of modular surface light source composition power 60W, area 396mm × 132mm, the road lighting luminous intensity distribution that can realize ideal, meets national road illumination standards requirement.This light fixture has the distribution curve flux of wide bat-wing on parallel garage direction, and largest light intensity angle can reach 150 °; And be asymmetrical perpendicular to its distribution curve flux on garage direction, the light distribution angle away from lamp stand end is comparatively large, and less near the light distribution angle of lamp stand end, can reduce the ratio of room marginal ray, improve the utilization rate of light.
Described lampshade is easy to make, and cost is lower.Along with the light out-degree changes in distribution of area source, described lampshade can produce different bat-wing distribution curve fluxs, and the street lamp that therefore different model requires can adopt unified lampshade structure, reduces the development cost of lampshade.Lampshade adopts glass to make, and weatherability is better, and longer service life, safeguards convenient.And lampshade is easy for installation, can directly transform the light fixture of sodium vapor lamp, cost performance is higher.
Claims (10)
1. there is a LED road lamp shade for light distributing function, it is characterized in that: luminous intensity distribution can be carried out to LED area light source, be namely parallel to along light fixture short-axis direction the beam angle that light source is pulled open in garage direction, realize bat-wing distribution curve flux; Namely asymmetrical distribution curve flux is realized perpendicular to garage direction along light fixture long axis direction.
2. according to the LED road lamp shade with light distributing function according to claim 1, it is characterized in that: described lampshade is the effect of multiple lens combination along the cross section of light fixture short-axis direction.
3. according to the LED road lamp shade with light distributing function according to claim 2, it is characterized in that: described lampshade is be made up of the bus on inside and outside surface along the cross section of light fixture short-axis direction, and described two buses are free curve.
4. according to the LED road lamp shade with light distributing function according to claim 3, it is characterized in that: described inner surface bus is segmented, every section forms the lens of different focal, better to realize light distributing function with outer surface bus.
5. according to the LED road lamp shade with light distributing function according to claim 4, it is characterized in that: described lampshade is the column convex lens be made up of described inside and outside surperficial bus along the both sides in the cross section of light fixture short-axis direction, the beam angle of LED area light source can be pulled open to both sides, produce bat-wing distribution curve flux along garage direction.
6. according to the LED road lamp shade with light distributing function according to claim 4, it is characterized in that: described lampshade to distribute some prisms or cylindrical mirror on an internal surface along the core in the cross section of light fixture short-axis direction, and its raised face is towards LED area light source; Described prism or cylindrical lens structure can pull open the beam angle of LED area light source further.
7. according to the LED road lamp shade with light distributing function according to claim 1, it is characterized in that: described lampshade is symmetrical structure along the cross section of light fixture long axis direction, two sides are convex surface or plane, near material or the coating of an employing high reflectance of lamp stand.
8. according to the LED road lamp shade with light distributing function according to claim 1, it is characterized in that: described lampshade is non-symmetrical structure along the cross section of light fixture long axis direction, and the side away from lamp stand is convex surface, is plane near the side of lamp stand.
9. according to the LED road lamp shade with light distributing function according to claim 4, it is characterized in that: regulate the light out-degree of described area source to distribute, the largest light intensity angle of the bat-wing luminous intensity distribution that described lens produce can be changed.
10. according to the LED road lamp shade with light distributing function one of claim 1-9 Suo Shu, it is characterized in that: described LED lamp cover is all-in-one-piece, or formed by multiple lampshade block combiner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520844120.XU CN205155845U (en) | 2015-10-28 | 2015-10-28 | LED street lamp lamp shade with grading function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520844120.XU CN205155845U (en) | 2015-10-28 | 2015-10-28 | LED street lamp lamp shade with grading function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205155845U true CN205155845U (en) | 2016-04-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520844120.XU Expired - Fee Related CN205155845U (en) | 2015-10-28 | 2015-10-28 | LED street lamp lamp shade with grading function |
Country Status (1)
| Country | Link |
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| CN (1) | CN205155845U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105240799A (en) * | 2015-10-28 | 2016-01-13 | 复旦大学 | LED streetlamp lampshade with light distribution function |
| CN109323138A (en) * | 2018-11-23 | 2019-02-12 | 欧普照明股份有限公司 | Light distribution element, light source assembly and illuminator |
| CN115968079A (en) * | 2022-01-30 | 2023-04-14 | 河北省交通规划设计研究院有限公司 | Tunnel lighting system |
| CN109323138B (en) * | 2018-11-23 | 2024-04-26 | 欧普照明股份有限公司 | Light distribution element, light source assembly and lighting lamp |
-
2015
- 2015-10-28 CN CN201520844120.XU patent/CN205155845U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105240799A (en) * | 2015-10-28 | 2016-01-13 | 复旦大学 | LED streetlamp lampshade with light distribution function |
| CN109323138A (en) * | 2018-11-23 | 2019-02-12 | 欧普照明股份有限公司 | Light distribution element, light source assembly and illuminator |
| CN109323138B (en) * | 2018-11-23 | 2024-04-26 | 欧普照明股份有限公司 | Light distribution element, light source assembly and lighting lamp |
| CN115968079A (en) * | 2022-01-30 | 2023-04-14 | 河北省交通规划设计研究院有限公司 | Tunnel lighting system |
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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: 20160413 Termination date: 20191028 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |