CN203703824U - Total-reflection type LED (light emitting diode) street lamp lens - Google Patents
Total-reflection type LED (light emitting diode) street lamp lens Download PDFInfo
- Publication number
- CN203703824U CN203703824U CN201420100717.9U CN201420100717U CN203703824U CN 203703824 U CN203703824 U CN 203703824U CN 201420100717 U CN201420100717 U CN 201420100717U CN 203703824 U CN203703824 U CN 203703824U
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- lens
- street lamp
- led street
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- incident
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/72—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps in street lighting
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- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The utility model discloses a total-reflection type LED street lamp lens. The total-reflection type LED street lamp lens is composed of a lens body and a mounting rack. The mounting rack is arranged at the bottom of the both sides of the lens body and provided with mounting holes; the lens body is composed of a concave incident lens, a totally reflecting surface and a free curved emergent surface, wherein the concave incident lens is formed by combining a flat incident surface and an aspheric cylindrical surface, and the flat incident surface is divided into four rectangular flat surfaces and form an incident cavity along with the aspheric cylindrical surface; the totally reflecting surface is composed two pairs of totally reflecting curved surfaces which are connected end to end; the free curved emergent surface is a batwing type curved surface; the totally reflecting surface and the free flat emergent surface composes the outer contour of the lens body. The total-reflection type LED street lamp lens reasonably improves the lighting effects of an LED street lamp to reduce light waste, is high in lighting uniformity and can reasonably control the light divergence angle to form rectangular light spots on a road surface.
Description
Technical field
The utility model relates to a kind of LED street lamp lens, relates in particular to a kind of LED street lamp lens of fully-reflected type.
Technical background
Many countries and the city of China, Europe and North America have all been carried out the exploitation of LED road lighting technology and have widelyd popularize, and than metal halid lamp and high-pressure mercury lamp, LED street lamp has the longer life-span; In addition, LED street lamp also has better controllability and light efficiency.But aspect optics, because the volume of LED chip is little, the feature that light intensity intensity is high, allows the secondary light-distribution design of LED light source seem extremely important.
The photometric distribution of most LED street lamps is in the market youth uncle and distributes, hot spot is circular, the full duration of the beam angle of peak light intensity half position is about 120 °, and known to the distance on ground according to street lamp, the light of about half is irradiated to road and is wasted outward.The existing LED street lamp lens illumination uniformity problems of considering and solving LED street lamp more, but do not have the design about LED road lamp light distribution or the two combination too much.So a can, to the accurate luminous intensity distribution of LED street lamp, light being reasonably assigned on the road that needs illumination, prevents light pollution and dazzle, the LED street lamp lens that also can realize the good illumination uniformity of LED street lamp is badly in need of exploitation.
Summary of the invention
The utility model is for the problem of light waste in existing LED street lighting technology, the LED street lamp lens of the reasonable fully-reflected type that improves lighting effect has been proposed, the LED street lamp lens illumination uniformity of this total reflection is good, can rationally control the light angle of divergence of LED street lamp, form the hot spot of rectangle on road surface.
A LED street lamp lens for fully-reflected type, is made up of lens and mounting bracket, and mounting bracket is in the bottom of lens both sides, and mounting bracket is provided with installing hole.Described lens are made up of indent incident mirror, fully reflecting surface, free outgoing curved surface; Indent incident mirror is made up of plane of incidence and the combination of aspheric surface cylinder, and plane of incidence is divided into four rectangle planes, with the incident cavity of aspheric surface cylinder formation indent; Fully reflecting surface has two pairs of totally four total reflection curved surfaces, and four total reflection curved surfaces are end to end; Free outgoing curved surface is bat airfoil camber, and total reflection curved surface and free outgoing curved surface form the outline of lens.
The angle of divergence of the LED street lamp lens of this fully-reflected type is longitudinal 120 °, horizontal 60 °.
Described lens adopt Merlon.
Beneficial effect:
1. the indent incident mirror of the LED street lamp lens of this fully-reflected type can reduce the reflection of light, reduces light and enters the energy loss before lens.
2. the free outgoing curved surface of the LED street lamp lens of this fully-reflected type, to equalizing light rays processing, is realized the uniformity of the illumination of LED street lamp.
3. rim ray principle is followed in the design of the fully reflecting surface of these lens, can change as required the configuration of curved surface, thereby regulates the light angle of divergence of LED street lamp, the angle of divergence of emergent light is controlled in the scope at longitudinal hexagonal angle, horizontal 60 ° of angles.
Accompanying drawing explanation
The LED street lamp lens structure chart of Fig. 1 fully-reflected type
The left pseudosection of the LED street lamp lens of Fig. 2 fully-reflected type
The plot of light intensity of Fig. 3 embodiment of the present utility model
In figure, 1 is lens, and 2 is mounting bracket, and 3 is installing hole, and 101 is free outgoing curved surface, and 102 is fully reflecting surface, and 103 is aspheric surface cylinder, and 104 is plane of incidence.
The specific embodiment
Fig. 1, the LED street lamp lens structure chart of fully-reflected type.The LED street lamp lens of this fully-reflected type, is made up of lens 1 and mounting bracket 2, and mounting bracket is in the bottom of lens both sides, and mounting bracket 2 is provided with installing hole 3.
Fig. 2, the left pseudosection of the LED street lamp lens of fully-reflected type.Described lens 1 comprise that indent incident mirror, fully reflecting surface 102, free outgoing curved surface 101 form; Indent incident mirror is by plane of incidence 104 and aspheric surface cylinder 103 in conjunction with forming, and plane of incidence is divided into four rectangle planes, forms the incident cavity of indent with aspheric surface cylinder 103; Fully reflecting surface has two pairs of totally four total reflection curved surfaces, and four total reflection curved surfaces are end to end; Free outgoing curved surface 101 is bat airfoil camber, and four total reflection curved surfaces and free outgoing curved surface 101 form the outline of lens.Rim ray principle is followed in fully reflecting surface 102 designs, the angle of divergence of emergent light is controlled in the scope at longitudinal hexagonal angle, horizontal 60 ° of angles.
Embodiment:
In the present embodiment, adopt the large-power LED light bead of a 1W, 10000 of Geometrical Optics; In emulation, the transmissivity of lens is 0.9; Rim ray principle is followed in fully reflecting surface 102 designs, the angle of divergence of emergent light is controlled in the scope at longitudinal hexagonal angle, horizontal 60 ° of angles, as shown in Figure 2; Free outgoing curved surface 101 adopts bat airfoil camber, plays good even light action.
LED lamp pearl emission of light, light enters lens 1 through the refraction of indent incident mirror, reflects through fully reflecting surface 102 from the light of aspheric surface cylinder 103 incidents from light and the part of plane of incidence 104 incidents, then by outgoing after the even light of free outgoing curved surface 101; Another part from the light of aspheric surface cylinder 103 incidents directly by outgoing the even light of free outgoing curved surface 101.
Fig. 4 is the plot of light intensity of an embodiment of the present utility model, and this plot of light intensity is the light distribution situation of the free outgoing curved surface of lens.From figure, can learn that longitudinal distribution of light basic controlling of LED street lamp lens of fully-reflected type is in the scope of hexagonal angle, and the light distribution of light within the scope of hexagonal angle degree is even, illustrates that the LED street lamp lens illumination uniformity of this fully-reflected type is good.
Claims (3)
1. a LED street lamp lens for fully-reflected type, is made up of lens and mounting bracket, and mounting bracket is in the bottom of lens both sides, and mounting bracket is provided with installing hole, it is characterized in that: described lens are made up of indent incident mirror, fully reflecting surface, free outgoing curved surface; Indent incident mirror is made up of plane of incidence and the combination of aspheric surface cylinder, and plane of incidence is divided into four rectangle planes, with the incident cavity of aspheric surface cylinder formation indent; Fully reflecting surface has two pairs of totally four total reflection curved surfaces, and four total reflection curved surfaces are end to end; Free outgoing curved surface is bat airfoil camber, and total reflection curved surface and free outgoing curved surface form the outline of lens.
2. the LED street lamp lens of a kind of fully-reflected type according to claim 1, is characterized in that: the angle of divergence of the LED street lamp lens of this fully-reflected type is longitudinal 120 °, horizontal 60 °.
3. the LED street lamp lens of a kind of fully-reflected type according to claim 1, is characterized in that: described lens adopt Merlon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420100717.9U CN203703824U (en) | 2014-03-05 | 2014-03-05 | Total-reflection type LED (light emitting diode) street lamp lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420100717.9U CN203703824U (en) | 2014-03-05 | 2014-03-05 | Total-reflection type LED (light emitting diode) street lamp lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203703824U true CN203703824U (en) | 2014-07-09 |
Family
ID=51054262
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420100717.9U Expired - Fee Related CN203703824U (en) | 2014-03-05 | 2014-03-05 | Total-reflection type LED (light emitting diode) street lamp lens |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203703824U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104180208A (en) * | 2013-05-24 | 2014-12-03 | 海洋王（东莞）照明科技有限公司 | Lamp and lens thereof |
| CN112268243A (en) * | 2020-11-06 | 2021-01-26 | 上海博昂电气有限公司 | Precision illumination optical system, device and method |
| CN113503520A (en) * | 2021-07-01 | 2021-10-15 | 湖南中南智能激光科技有限公司 | Annular dodging lens, lens assembly and photoelectric encoder |
| CN113803693A (en) * | 2020-06-11 | 2021-12-17 | 西安新骊电子技术有限责任公司 | Plane lens based on total reflection principle and transmission principle |
-
2014
- 2014-03-05 CN CN201420100717.9U patent/CN203703824U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104180208A (en) * | 2013-05-24 | 2014-12-03 | 海洋王（东莞）照明科技有限公司 | Lamp and lens thereof |
| CN113803693A (en) * | 2020-06-11 | 2021-12-17 | 西安新骊电子技术有限责任公司 | Plane lens based on total reflection principle and transmission principle |
| CN112268243A (en) * | 2020-11-06 | 2021-01-26 | 上海博昂电气有限公司 | Precision illumination optical system, device and method |
| CN112268243B (en) * | 2020-11-06 | 2021-08-10 | 上海博昂电气有限公司 | Precision illumination optical system, device and method |
| CN113503520A (en) * | 2021-07-01 | 2021-10-15 | 湖南中南智能激光科技有限公司 | Annular dodging lens, lens assembly and photoelectric encoder |
| CN113503520B (en) * | 2021-07-01 | 2022-12-09 | 湖南中南智能激光科技有限公司 | Annular dodging lens, lens assembly and photoelectric encoder |
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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: 20140709 Termination date: 20150305 |
|
| EXPY | Termination of patent right or utility model |