CN203036554U - LED street lamp lens - Google Patents
LED street lamp lens Download PDFInfo
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- CN203036554U CN203036554U CN2012207388461U CN201220738846U CN203036554U CN 203036554 U CN203036554 U CN 203036554U CN 2012207388461 U CN2012207388461 U CN 2012207388461U CN 201220738846 U CN201220738846 U CN 201220738846U CN 203036554 U CN203036554 U CN 203036554U
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- arc curve
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- inner sunken
- street lamp
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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 an LED street lamp lens which comprises a convex curve, a bottom face and a concave curve in the middle of the bottom face. The convex curve is a waist-shaped spherical surface; the concave curve is oval-shaped in profile on the bottom face and orthogonal with the waist-shaped spherical surface in the long-axis direction; the big end of the oval-shaped profile closes to a convex position on the waist-shaped spherical surface while the small end of the same closes to a concave position on the waist-shaped spherical surface; the thickness between an incident plane and an emergent surface is measured along the radiating direction of lens light source on a profile along the long-axis direction of the concave curve and perpendicular to the long-axis direction of the convex curve; the horizontal direction at 0 degree from the radiating direction of the lens light source towards the concave position on the waist-shaped spherical surface is taken as the reference, the thickness at 0 degree is smallest, the thickness at 135 degrees is largest, and the thickness at 180 degrees is second largest. The LED street lamp lens can realize illuminating effects of rectangular spots and equal luminance, and has the advantages of simple structure, low cost and high reliability.
Description
[technical field]
The utility model relates to the LED street lamp, relates in particular to a kind of LED street lamp lens.
[background technology]
At the LED lighting field, street lamp is the importance of an application, the decisive factor of street lamp radiation response is light-struck angle and Illumination Distribution control, the method of control light radiation angle and effect, usually adopt reflection shield and lens, traditional LED lens design according to uniformity and the light spot shape of illumination, to obtain the uniform rectangular light spot of illumination.
The unit of brightness is every square metre of candela (cd/ ㎡), and the briliancy of a light source or a face to be illuminated refers to the luminous intensity density of its per surface on a certain direction, i.e. the bright degree of human eye institute perception face to be illuminated.Though traditional street lamp lens average illumination and the uniformity meet the demands, briliancy (brightness) uniformity does not reach requirement, and brightness vertical uniformity minimum of a value in road surface is less than 0.7, and because of the brightness irregularities of hot spot, the sense organ effect on road surface is good inadequately.
[summary of the invention]
The technical problems to be solved in the utility model provides a kind of comparatively uniform LED street lamp lens of briliancy that can make the irradiation of LED street lamp.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is, a kind of LED street lamp lens, comprise that evagination curved surface, bottom surface and position are positioned at the inner sunken face at middle part, bottom surface, the lens light source is arranged in the cavity that inner sunken face surrounds, and inner sunken face is the plane of incidence of lens, and the evagination curved surface is exit facet, described evagination curved surface is the sphere of waist shape, and the profile of inner sunken face on the bottom surface is avette; The long axis direction quadrature of the sphere of the long axis direction of inner sunken face and waist shape; The major part of avette profile is near the outstanding position of waist shape sphere, and the microcephaly of avette profile is near the indent position of waist shape sphere; Thickness between the plane of incidence and the exit facet is along the inner sunken face long axis direction and the directions of rays of sending by the lens light source on perpendicular to the section of evagination curved surface long axis direction tolerance; The horizontal direction of directions of rays towards waist shape sphere indent position of sending with the lens light source is 0 ° of benchmark, the thickness minimum of 0 ° of direction, and near 135 ° of thickness maximums that direction is, the thickness of 180 ° of directions takes second place.
Above-described LED street lamp lens, along on inner sunken face long axis direction and the section perpendicular to evagination curved surface long axis direction, the outline line of inner sunken face is circular arc, the luminous point of lens light source is departed from towards the direction at waist shape sphere indent position in the center of circle of circular arc, is lower than the luminous point of lens light source at vertical direction.
Above-described LED street lamp lens, along on inner sunken face long axis direction and the section perpendicular to evagination curved surface long axis direction, the profile of evagination curved surface is made up of 4 sections arc curve smooth connections, first section arc curve is from 0 ° of benchmark to 30 °, second section arc curve is from 15 ° to 105 °, the 3rd section arc curve is from 105 ° to 165 °, and the 4th section arc curve is from 165 ° to 180 °; The radius of first section arc curve is greater than the radius of second section arc curve, and the radius of second section arc curve is greater than the radius of the 3rd section arc curve; The luminous point of lens light source is all departed from the center of circle of first section arc curve, second section arc curve and the 3rd section arc curve, and away from waist shape sphere indent position; The center of circle of first section arc curve, second section arc curve is contour at the luminous point of vertical direction and lens light source, and the center of circle of the 3rd section arc curve is higher than the luminous point of lens light source at vertical direction.
Above-described LED street lamp lens, the radius maximum of the 4th section arc curve is reverse arc curve or straight line.
Above-described LED street lamp lens, along evagination curved surface long axis direction and the directions of rays of sending by the lens light source on perpendicular to the section of inner sunken face long axis direction tolerance, the thickness vertical direction minimum between the plane of incidence and the exit facet, and thicken gradually to both sides.
Above-described LED street lamp lens, along on evagination curved surface long axis direction and the section perpendicular to the inner sunken face long axis direction, the profile of evagination curved surface is last half ellipse that the major axis along continuous straight runs is arranged; The profile of inner sunken face is the top of the ellipse vertically arranged of major axis.
Above-described LED street lamp lens, the inner sunken face avette profile on the bottom surface is combined by two different ellipses of size.
The utility model LED street lamp lens is a kind of polarized light type LED street lamp lens, can realize rectangular light spot and etc. the briliancy radiation response, solved the hot spot problem of non-uniform of conventional lenses equiluminous design, and have simple in structure, low cost, the characteristics of high reliability.
[description of drawings]
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Fig. 1 is one of stereogram of the utility model embodiment LED street lamp lens.
Fig. 2 be the utility model embodiment LED street lamp lens stereogram two.
Fig. 3 is the front view of the utility model embodiment LED street lamp lens.
Fig. 4 is the vertical view of the utility model embodiment LED street lamp lens.
Fig. 5 is the upward view of the utility model embodiment LED street lamp lens.
Fig. 6 is that A among Fig. 1 is to cutaway view.
Fig. 7 is the arc curve profile schematic diagram in the utility model embodiment LED street lamp lens cross section.
Fig. 8 is that B among Fig. 2 is to cutaway view.
Fig. 9 is the distribution curve flux figure of the utility model embodiment LED street lamp lens.
[specific embodiment]
To embodiment of the present utility model shown in Figure 6, the LED street lamp lens comprises evagination curved surface 1, bottom surface 2, is positioned at the inner sunken face 4 at 2 middle parts, bottom surface, angle 5 and wing plate 6 is installed at Fig. 1.
The cavity that is arranged in inner sunken face 4 encirclements of lens light source led lamp 3, inner sunken face 4 is the plane of incidence of lens, evagination curved surface 1 is exit facet.
Evagination curved surface 1 is the sphere of waist shape, and the profile of inner sunken face 4 on bottom surface 2 is avette.The long axis direction quadrature of the sphere of the long axis direction of inner sunken face 4 and waist shape.
As shown in Figure 5, the avette profile of inner sunken face 4 on bottom surface 2 combined by two different ellipses 7 and 8 of size.The major part of avette profile is near the outstanding position 101 of waist shape sphere, and the microcephaly of avette profile is near the indent position 102 of waist shape sphere.
As shown in Figure 6 and Figure 7, the thickness deltat between the plane of incidence and the exit facet, along inner sunken face 4 long axis directions and the directions of rays of sending by the lens light source on perpendicular to the section of evagination curved surface 1 long axis direction tolerance change.The horizontal direction of directions of rays towards waist shape sphere indent position of sending with the lens light source is 0 ° of benchmark, and the thickness deltat between the plane of incidence and the exit facet is in the thickness minimum of 0 ° of direction, and near the thickness maximum 135 ° of directions is taken second place at the thickness of 180 ° of directions.
Along on inner sunken face 4 long axis directions and the section perpendicular to evagination curved surface 1 long axis direction, the outline line of inner sunken face 4 is that radius is the circular arc of R, the luminous point o of lens light source is departed from towards the direction at waist shape sphere indent position 102 in the center of circle of circular arc, is lower than the luminous point o of lens light source at vertical direction.
Along on inner sunken face 4 long axis directions and the section perpendicular to evagination curved surface 1 long axis direction, the profile of evagination curved surface 1 is made up of 4 sections arc curve smooth connections, first section arc curve 1a is from 0 ° of benchmark to 30 °, second section arc curve 1b is from 15 ° to 105 °, the 3rd section arc curve 1c is from 105 ° to 165 °, and the 4th section arc curve 1d is from 165 ° to 180 °.The radius R 1 of first section arc curve 1a is greater than the radius R 2 of 2, the second sections arc curve 1b of radius R of the second section arc curve 1b radius R 3 greater than the 3rd section arc curve 1c.The luminous point o of lens light source is all departed from the center of circle of first section arc curve 1a, second section arc curve 1b and the 3rd section arc curve 1c, away from waist shape sphere indent position 102.The center of circle of first section arc curve 1a, second section arc curve 1b is contour at the luminous point o of vertical direction and lens light source, and the center of circle of the 3rd section arc curve 1c is higher than the luminous point of lens light source at vertical direction.The radius maximum of the 4th section arc curve 1d is reverse arc curve or straight line.
As shown in Figure 8, along evagination curved surface 1 long axis direction and the directions of rays of sending by the lens light source on perpendicular to the section of inner sunken face 4 long axis directions tolerance, the thickness δ between the plane of incidence and the exit facet, vertical direction δ 0 minimum, δ thickeies gradually to both sides.
Along on evagination curved surface 1 long axis direction and the section perpendicular to inner sunken face 4 long axis directions, the profile of evagination curved surface 1 is last half ellipse 9 that the major axis along continuous straight runs is arranged.The profile of inner sunken face 4 is the top of the ellipse 10 vertically arranged of major axis.
As can be seen from Figure 9, the utility model LED street lamp lens is the lens of a polarizing angle.The asymmetric curve of low profile be that measure on C0 °-180 ° planes (minor axis perpendicular), definition according to beam angle draws, the asymmetric perspective curve of low profile (laterally half-angle 50%) is 80 ° approximately, about 10 ° of polarisation, be that illumination angle is 80 °, 10 ° in protruding cambered surface direction is partial in asymmetric irradiation.
The curve of big profile symmetry is that measure on C90 °-270 ° planes (major axis perpendicular).Definition according to beam angle draws, and the perspective curve of big profile symmetry (vertically half-angle 50%) is 150 degree approximately, and largest light intensity is 46cd approximately.The polarized light type LED street lamp lens of the above embodiment of the utility model LED street lamp lens, can realize rectangular light spot and etc. the briliancy radiation response, solved the hot spot problem of non-uniform of conventional lenses equiluminous design, have simple in structure, low cost, the characteristics of high reliability.
Claims (7)
1. LED street lamp lens, comprise evagination curved surface, bottom surface and be positioned at the inner sunken face at bottom surface middle part, the lens light source is arranged in the cavity that inner sunken face surrounds, inner sunken face is the plane of incidence of lens, the evagination curved surface is exit facet, it is characterized in that described evagination curved surface is the sphere of waist shape, the profile of inner sunken face on the bottom surface is avette; The long axis direction quadrature of the sphere of the long axis direction of inner sunken face and waist shape; The major part of avette profile is near the outstanding position of waist shape sphere, and the microcephaly of avette profile is near the indent position of waist shape sphere; Thickness between the plane of incidence and the exit facet is along the inner sunken face long axis direction and the directions of rays of sending by the lens light source on perpendicular to the section of evagination curved surface long axis direction tolerance; The horizontal direction of directions of rays towards waist shape sphere indent position of sending with the lens light source is 0 ° of benchmark, the thickness minimum of 0 ° of direction, and near 135 ° of thickness maximums that direction is, the thickness of 180 ° of directions takes second place.
2. LED street lamp lens according to claim 1, it is characterized in that, along on inner sunken face long axis direction and the section perpendicular to evagination curved surface long axis direction, the outline line of inner sunken face is circular arc, the luminous point of lens light source is departed from towards the direction at waist shape sphere indent position in the center of circle of circular arc, is lower than the luminous point of lens light source at vertical direction.
3. LED street lamp lens according to claim 2, it is characterized in that, along on inner sunken face long axis direction and the section perpendicular to evagination curved surface long axis direction, the profile of evagination curved surface is made up of 4 sections arc curve smooth connections, first section arc curve is from 0 ° of benchmark to 30 °, second section arc curve is from 15 ° to 105 °, and the 3rd section arc curve is from 105 ° to 165 °, and the 4th section arc curve is from 165 ° to 180 °; The radius of first section arc curve is greater than the radius of second section arc curve, and the radius of second section arc curve is greater than the radius of the 3rd section arc curve; The luminous point of lens light source is all departed from the center of circle of first section arc curve, second section arc curve and the 3rd section arc curve, and away from waist shape sphere indent position; The center of circle of first section arc curve, second section arc curve is contour at the luminous point of vertical direction and lens light source, and the center of circle of the 3rd section arc curve is higher than the luminous point of lens light source at vertical direction.
4. LED street lamp lens according to claim 3 is characterized in that, the radius maximum of the 4th section arc curve is reverse arc curve or straight line.
5. LED street lamp lens according to claim 1, it is characterized in that, along evagination curved surface long axis direction and the directions of rays of sending by the lens light source on perpendicular to the section of inner sunken face long axis direction tolerance, thickness vertical direction minimum between the plane of incidence and the exit facet, and thicken gradually to both sides.
6. LED street lamp lens according to claim 5 is characterized in that, along on evagination curved surface long axis direction and the section perpendicular to the inner sunken face long axis direction, the profile of evagination curved surface is last half ellipse that the major axis along continuous straight runs is arranged; The profile of inner sunken face is the top of the ellipse vertically arranged of major axis.
7. LED street lamp lens according to claim 1 is characterized in that, the avette profile of inner sunken face on the bottom surface combined by two different ellipses of size.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012207388461U CN203036554U (en) | 2012-12-28 | 2012-12-28 | LED street lamp lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012207388461U CN203036554U (en) | 2012-12-28 | 2012-12-28 | LED street lamp lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203036554U true CN203036554U (en) | 2013-07-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012207388461U Expired - Fee Related CN203036554U (en) | 2012-12-28 | 2012-12-28 | LED street lamp lens |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203036554U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104235760A (en) * | 2014-08-28 | 2014-12-24 | 深圳市大族元亨光电股份有限公司 | LED (Light Emitting Diode) lens and lens module |
| CN105072812A (en) * | 2015-08-06 | 2015-11-18 | 深圳市环基实业有限公司 | Method for manufacturing hole-wall reflecting heat-conducting printed circuit board (PCB) |
| CN105805696A (en) * | 2014-12-30 | 2016-07-27 | 全亿大科技（佛山）有限公司 | Lens, illuminating device provided with lens, and light guiding cover |
-
2012
- 2012-12-28 CN CN2012207388461U patent/CN203036554U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104235760A (en) * | 2014-08-28 | 2014-12-24 | 深圳市大族元亨光电股份有限公司 | LED (Light Emitting Diode) lens and lens module |
| CN105805696A (en) * | 2014-12-30 | 2016-07-27 | 全亿大科技（佛山）有限公司 | Lens, illuminating device provided with lens, and light guiding cover |
| CN105072812A (en) * | 2015-08-06 | 2015-11-18 | 深圳市环基实业有限公司 | Method for manufacturing hole-wall reflecting heat-conducting printed circuit board (PCB) |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 518000, Guangdong, Shenzhen, Baoan District Fuyong Han Industrial Park 4 Patentee after: Shenzhen Yaham Optoelectronics Co., Ltd. Patentee after: Beijing Yun Xingyu transport science and techonologies incorporated company Address before: 518000, Guangdong, Shenzhen, Baoan District Fuyong Han Industrial Park 4 Patentee before: Shenzhen Yaham Optoelectronics Co., Ltd. Patentee before: Beijing Yunxingyu Traffic Engineering Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130703 Termination date: 20161228 |