CN101684919A - Led street lamp lens - Google Patents
Led street lamp lens Download PDFInfo
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- CN101684919A CN101684919A CN200910054935A CN200910054935A CN101684919A CN 101684919 A CN101684919 A CN 101684919A CN 200910054935 A CN200910054935 A CN 200910054935A CN 200910054935 A CN200910054935 A CN 200910054935A CN 101684919 A CN101684919 A CN 101684919A
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- 235000017060 Arachis glabrata Nutrition 0.000 claims abstract description 4
- 241001553178 Arachis glabrata Species 0.000 claims abstract description 4
- 235000010777 Arachis hypogaea Nutrition 0.000 claims abstract description 4
- 235000018262 Arachis monticola Nutrition 0.000 claims abstract description 4
- 235000020232 peanut Nutrition 0.000 claims abstract description 4
- 230000007704 transition Effects 0.000 claims description 16
- 238000005286 illumination Methods 0.000 claims description 12
- 230000004907 flux Effects 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 8
- 238000009434 installation Methods 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 6
- 229920003229 poly(methyl methacrylate) Polymers 0.000 claims description 6
- 239000004926 polymethyl methacrylate Substances 0.000 claims description 6
- 230000001815 facial effect Effects 0.000 claims description 4
- 239000012141 concentrate Substances 0.000 claims description 3
- 239000011521 glass Substances 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 abstract 2
- 230000003287 optical effect Effects 0.000 description 6
- 238000004134 energy conservation Methods 0.000 description 2
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 2
- 229910052753 mercury Inorganic materials 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
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- 238000007493 shaping process Methods 0.000 description 1
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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
Abstract
The invention provides an LED street lamp lens. The lens is arranged above an LED light source, and the shaft lines of the lens and the light source are on the same straight line; the lens comprises an incident surface, an exit surface, a bottom surface, a complete reflective surface and a transitional surface between the complete reflective surface and the exit surface; the incident surface is astrip-shaped pit of which the middle part is a strip-shaped curved surface formed by vertical extending symmetrical circular arc lines and free-form curved lines and both end parts are circular arc surfaces or free-form curved surfaces; the exit surface is in a peanut shape in which the arc is sunk along the X axis and the arc is protruded along the Y axis, the exit surface contour circular arc ofthe cross section penetrating the central shaft of the lens is protruded, and the exit surface contour central area arc of the vertical section penetrating the central shaft of the lens is sunk; andthe complete reflective surface surrounding the incident surface reflects the light beams to the transitional surface between the complete reflective surface and the exit surface. By using the lens, the light energy given off by the LED light source can be completely transmitted by the refraction of the curved surface of the lens, so that the utilization ratio is comparatively higher.
Description
Technical field
The present invention relates to the LED lighting field, relate in particular to the higher LED street lamp lens of the efficiency of light energy utilization.
Background technology
Street lamp is the important component part of city illumination, and traditional street lamp often adopts high-pressure mercury lamp, and the high-pressure mercury lamp shortcoming that light efficiency is low has on the whole caused the huge waste of the energy.Therefore, development of new is efficient, energy-conservation, the life-span is long, colour rendering index is high, the street lamp of environmental protection has a crucial meaning to city illumination is energy-conservation.
Now, led light source as the application of street lamp more and more widely.Led light source is the light source that distribution of light is dispersed, and be to cooperate road lighting, need be on the basis of fully improving the efficiency of light energy utilization luminous intensity distribution again.
The LED street lamp mainly adopts two kinds of luminous intensity distribution forms in the market, and first kind for arching upward the LED light emitting module or recessed, and this luminous intensity distribution form can be distributed more widely in the road surface parallel direction with light, but the efficiency of light energy utilization is low, and uniformity does not reach requirement.Second kind is employing lens luminous intensity distribution, and lens material is PC or PMMA, the loss of the unreasonable and material of lens arrangement design itself, and the efficiency of light energy utilization is low.
Publication number is a kind of LED street lamp for the CN2842182 Chinese patent discloses, and the LED in this street lamp is that intensive being installed in laid on the plate, lays the plate middle part and is surface plate, and periphery forms angle to the installed surface perk in the other direction of LED, and the installed surface of whole LED is convex.
Publication number is that the Chinese patent of CN1821651 discloses a kind of high-power LED street lamp, and this road lamp cap is socketed with corresponding lens, and lens are fixed by securing cover plate.
Publication number is that the Chinese patent of CN2896006 discloses a kind of high-brightness LED street lamp lamp holder, is provided with arch support in the lamp holder, and great power LED is rack-mount, and each LED is equipped with lens.
Publication number is that the Chinese patent of CN1936417 discloses a kind of LED road-light light-source, the light-emitting device of this street lamp is that LED is installed on the bottom surface at the heat radiation seat of honour, the bottom surface is made of a plurality of clinoplains that form an angle each other, and the LED scioptics entangle, with lens fixed mount fixed lens.
Publication number is a kind of LED street lamp lens for the CN101105272 Chinese patent discloses, and the structure of this lens is to comprise to have the symmetrical pit of circle and the exit facet and the fully reflecting surface of pillow-like, and the material of lens is PC or PMMA.
Yet the very low or uniformity of the efficiency of light energy utilization of the street lamp lens that above patent documentation discloses does not reach standard.
Summary of the invention
The purpose of this invention is to provide the high LED street lamp lens of a kind of light utilization efficiency, reach the light distribution illumination requirement that in the rectangular area, satisfies road lighting.
In order to reach above-mentioned purpose, a kind of LED street lamp lens is provided, described lens are installed in the top of led light source, the axis of described lens and light source is on same straight line, described lens comprise the transition face of the plane of incidence and exit facet, bottom surface, fully reflecting surface and fully reflecting surface and exit facet, the described plane of incidence is a strip pit that described led light source is installed, the middle part of pit is the circular arc line of symmetry, the strip curved surface of free curve stretched vertically, and its both ends are arc surface or free form surface; Exit facet is a peanut shape recessed along the X-direction arc, that the Y direction arc protrudes, the exit facet profile circular arc that passes the lateral cross section of lens centre axle protrudes, and the exit facet profile central area arc of longitudinal cross-section that passes the lens centre axle is recessed; Around the fully reflecting surface of the plane of incidence, with the transition face of light reflection to fully reflecting surface and exit facet.
Preferably, the line segment of the positive half section profile of described lateral cross section comprises that the incident facial contour comprises line segment AB, curve B C, and bottom profile is line segment CD, and the fully reflecting surface profile is curve D E, and the transition face profile is curve EF, and the exit facet profile is curve FG.
Preferably, the building method of FG curve is: AB and FG line constitute two-dimensional lens, revolve three-sixth turn by the Z axle, spent luminous energy in the α angle from 0 to redistribute at the radius perpendicular to the objective plane of led light source center line be in the r border circular areas light source sends, center line is through the center of border circular areas; The last point coordinates of FG be (x, z), light from light source point to (x, z) (x0 z0), thereby determines the drift angle that light source emits beam through the point on the FG, luminous flux in drift angle equals that circular area multiply by illumination in the corresponding objective plane, finally solves the numerical solution of FG curve according to the differential equation.
Preferably, the line segment of the positive half section profile of described longitudinal cross-section comprises that the incident facial contour comprises line segment ab, and bottom profile is line segment bc, and the fully reflecting surface profile is curve cd, and the transition face profile is curve de, and the exit facet profile is curve ef.
Preferably, the building method of ef curve is: ab and ef line constitute two-dimensional lens, revolve three-sixth turn by the Z axle, spent luminous energy in the β angle from 0 to redistribute at the radius perpendicular to the objective plane of led light source center line be in the r border circular areas light source sends, center line is through the center of border circular areas; Suppose that light source is a spot light, the last point coordinates of ef is (y, z), light from light source point to (y, z) be incident ray, from (y is an emergent ray to objective plane z), luminous flux in drift angle equals that circular area multiply by illumination in the corresponding objective plane, finally solves the numerical solution of ef curve according to the differential equation; Wherein ab is the free curve that is adjusted according to the actual luminous intensity distribution of LED.
Preferably, the light path that light source sent comprises low-angle light path and wide-angle light path, refraction arrives exit facet to described low-angle light path through the plane of incidence in order to send from light source, and then through superrefraction, from the exit facet outgoing, all light that form rectangular light spot in the vertical level of certain distance are formed, described low-angle light path at the angle of the vertical line of described the above lens of lateral cross section within 80 degree, described low-angle light path on the described fore-and-aft plane with the angle of described vertical line within 80 degree; Refraction arrives peripheral fully reflecting surface to described wide-angle light path through the plane of incidence in order to send from light source, arrive transition face through the reflection back, and then through superrefraction from the lens outgoing, light concentrates within the above-mentioned rectangular light spot, thereby the light of central area is further strengthened compensation.
Preferably, the material of described lens is polymethyl methacrylate, Merlon or glass.
Preferably, described lens be single installation or a plurality of array with the luminescent panel of LED correspondence on.
Use lens of the present invention, the luminous energy that led light source sent can both transfer out through the refraction of lens curved surface, so utilization rate is higher.The unique design of the outgoing curved surface of lens of the present invention can well distribute luminous energy on shadow surface, so the uniformity is higher.
Description of drawings
Reference is the description and the accompanying drawing of current preferred embodiment hereinafter, can understand the present invention and purpose and advantage best, wherein:
Fig. 1 is system's cutaway view of street lamp lens cooperated with LED of the present invention;
Fig. 2 is that street lamp lens of the present invention cooperates analysing and observe of two LEDs systems; Figure
Fig. 3 is the upper surface stereogram of lens of the present invention;
Fig. 4 is the lower surface stereogram of lens of the present invention;
Fig. 5 is the two-dimensional coordinate signature of lens lateral cross section of the present invention;
Fig. 6 is the two-dimensional coordinate signature of lens of the present invention longitudinal cross-section;
Fig. 7 is a lens arra installation diagram of the present invention;
Fig. 8 is the street lamp lens cooperated with LED light propagation figure of system of the present invention;
Fig. 9 is the actual installation Illumination Distribution figure that implements street lamp lens optical system of the present invention;
Figure 10 is the actual installation distribution curve flux figure that implements street lamp lens optical system of the present invention.
The reference numeral table:
11～lens, 111～lens plane of incidence
112～lens exit facet, 113～lens fully reflecting surface
12～led light source, 3～target area
The light that 121～light source sent is divided into the low-angle light path
The light that 122～light source sent is divided into the wide-angle light path
The specific embodiment
Description is described the preferred embodiment according to LED street lamp lens of the present invention.
As shown in Figure 1, according to embodiment of the invention LED street lamp application in general LED road lamp optical system 1.Optical system 1 comprises led light source 12.Led light source 12 is installed on lens 11 bottom surfaces.
In the present embodiment, led light source 12 is single or multiple great power LEDs or LED module.Led light source 12 sends the light that angle is 180 degree substantially.It is the cutaway view that street lamp lens of the present invention cooperates two LEDs systems that Fig. 2 shows.
Shown in Fig. 3 and 4, lens 11 comprise transition face 114, the bottom surface 115 of the plane of incidence 111 and exit facet 112, fully reflecting surface 113 and fully reflecting surface and exit facet.The plane of incidence 111 is the strip pit, and the middle part of pit is the circular arc line of symmetry, the strip curved surface of free curve stretched vertically, and its both ends are arc surface or free form surface.Exit facet 112 is a peanut shape that recessed, the horizontal arc of vertical arc protrudes.Around the fully reflecting surface 113 of the plane of incidence, with the transition face 114 of light reflection to fully reflecting surface and exit facet.
As illustrated in Figures 5 and 6, the plane of incidence 111 of lens 11 forms in the following manner with exit facet 112:
Definition lens centre axle is the Z axle, overlap with the primary optical axis direction of illuminator, the lateral cross section of passing the lens centre axle is the X-Z plane, and its exit facet profile circular arc protrudes, the longitudinal cross-section of passing the lens centre axle is the Y-Z plane, and its exit facet profile central area arc is recessed.
The line segment of the positive half section profile on the lens X-Z plane is represented: plane of incidence profile is line segment AB, and the transition face profile is curve B C, bottom profile line CD, and fully reflecting surface outline line DE, transition face outline line EF, exit facet profile are curve FG.
The building method of CD curve is:
AB and FG line constitute two-dimensional lens, revolve three-sixth turn by the Z axle, assume three-dimensional circle symmetric lens, to spend the radius that the luminous energy in the α angle redistributes at objective plane from 0 be in the r border circular areas with light source sent, supposes that light source is a spot light, and the last point coordinates of FG is (x, z), according to the light refraction law, determine light from light source point to (x is z) through the point (x0 on the FG, c), thereby determine the drift angle that light source emits beam, (x0 z0) tries to achieve by following formula point
(0.1)
This moment the emergent ray vector:
The incident ray vector:
N is an atmospheric density
N ' is a lens density
(x0 arrives z0) that (x z) is mapped to the target area through reflecting, and equally according to the law of refraction (1.1), thereby tries to achieve in the radius r that arrives the target border circular areas to light by point then;
This moment the emergent ray vector:
The incident ray vector:
N is a lens density
N ' is an atmospheric density
Again according to luminous energy through the conservation of energy formula of lens, the luminous flux in drift angle equals that circular area multiply by illumination in the corresponding objective plane.Luminous flux in drift angle 2 θ is
At the radius of objective plane is that luminous flux in the r border circular areas is Ф 2=E* π r
2Thereby by boundary condition x=0, z=a and conservation of energy formula Ф 1=Ф 2 can determine finally that (x, z) numerical solution finally fit to the FG free curve to coordinate points.
The line segment of the positive half section profile on the lens Y-Z plane is represented: plane of incidence profile comprises line segment ab, and bottom profile is line segment bc, and the fully reflecting surface profile is curve cd, and the transition face profile is curve de, and the exit facet profile is curve ef.
The building method of ef curve is:
Ab and ef line constitute two-dimensional lens, revolve three-sixth turn by the Z axle, assume three-dimensional circle symmetric lens, to spend the radius that the luminous energy in the β angle redistributes at objective plane from 0 be in the r border circular areas with light source sent, suppose that light source is a spot light, the last point coordinates of ef is (y, z), according to the light refraction law, light from light source point to (y, z) be incident ray, from (y is an emergent ray to objective plane z), according to conservation of energy formula in the luminous energy process lens process, luminous flux in the light source drift angle equals that circular area multiply by illumination in the corresponding objective plane, according to boundary condition y=0, z=OG, and the differential equation that satisfies above-mentioned formula, try to achieve the numerical solution of ef curve, finally fit into the ef free curve.
In like manner can in the hope of through Y-axis, with Z axle clamp angle be curve e1f1 on the plane P 1 of a1, a1＞1 degree, the boundary condition of this moment is y=0, z=OG1, G1 are the intersection point of face P1 and CG.The e2f2 of a2 angle correspondence, a2＞a1.If CG is divided into equal angles N section curve (N＞3), then can try to achieve N+1 bar curve altogether.
The exit facet 112 of lens is the curved surfaces of formatting and forming by above grid in length and breadth of trying to achieve.
Circular arc line or the free curve of ab for being adjusted according to the actual luminous intensity distribution of LED, the curved surface of ab stretched vertically finally form the pit mid portion of the plane of incidence 111 through left-right symmetry.
In the present embodiment, the material of lens 11 is polymethyl methacrylate (PMMA), Merlon (PC) or glass.
In the present embodiment, LED street lamp lens according to the present invention is single installation.Certainly, but also array formation module installation of lens of the present invention, as shown in Figure 7.
As shown in Figure 8, the light that the present invention is sent from led light source 12 is divided into low-angle light path 121 and wide-angle light path 122, light path 121 is to send the plane of incidence 111 of back directive lens 11 from led light source 12, again by the exit facet 112 of the plane of incidence 111 directive lens, at last by reflecting the target areas that arrive in the vertical level of certain distance through exit facet 112, all light that form rectangular light spot in the target area are formed, the low-angle light path on the X-Z plane with the angle of Z axle within 80 degree, the low-angle light path on the Y-Z plane with the angle of Z axle within 80 degree.Light path 122 is to be sent the fully reflecting surface 113 of back directive lens 11 by led light source 12, pass through the transitional region 114 of fully reflecting surface 113 reflection directive fully reflecting surfaces 113 and exit facet 112 again, arrive target area 3 through refraction at last, light concentrates within the above-mentioned rectangular light spot, thereby the light of central area is further strengthened compensation.
By above optic path principle as can be seen, the luminous energy that led light source sent can both transfer out through the refraction of lens curved surface, and the design of scioptics outgoing curved surface can well distribute luminous energy on shadow surface in addition, reaches the illuminance uniformity requirement.
Fig. 9, Figure 10 are the design sketch that the LED street lamp behind enforcement the present invention program reaches, and are respectively Illumination Distribution figure and distribution curve flux figure.As can be seen in the effective lighting scope, the even performance of illuminance reaches road illumination standards by these two optical effect figure.
The present invention has following advantage.
(1) use lens of the present invention, the luminous energy that led light source sent can both transfer out through the refraction of lens curved surface, so utilization rate is higher.
(2) unique design of the outgoing curved surface of lens of the present invention can well distribute luminous energy on shadow surface, so the uniformity is higher.
Although described example embodiment of the present invention already, those skilled in the art should understand and can modify and do not exceed purport of the present invention and spirit these embodiment, and scope of the present invention is limited by claims and equivalent thereof.
Claims (8)
1. LED street lamp lens, described lens are installed in the top of led light source, the axis of described lens and light source is on same straight line, described lens comprise the transition face of the plane of incidence and exit facet, bottom surface, fully reflecting surface and fully reflecting surface and exit facet, it is characterized in that: the described plane of incidence is a strip pit that described led light source is installed, the middle part of pit is the circular arc line of symmetry, the strip curved surface of free curve stretched vertically, and its both ends are arc surface or free form surface; Exit facet is a peanut shape recessed along the X-direction arc, that the Y direction arc protrudes, the exit facet profile circular arc that passes the lateral cross section of lens centre axle protrudes, and the exit facet profile central area arc of longitudinal cross-section that passes the lens centre axle is recessed; Around the fully reflecting surface of the plane of incidence, with the transition face of light reflection to fully reflecting surface and exit facet.
2. street lamp lens as claimed in claim 1, it is characterized in that, the line segment of the positive half section profile of described lateral cross section comprises that the incident facial contour comprises line segment AB, curve B C, bottom profile is line segment CD, the fully reflecting surface profile is curve D E, the transition face profile is curve EF, and the exit facet profile is curve FG.
3. street lamp lens as claimed in claim 2, it is characterized in that, the building method of FG curve is: AB and FG line constitute two-dimensional lens, revolve three-sixth turn by the Z axle, spent luminous energy in the α angle from 0 to redistribute at the radius perpendicular to the objective plane of led light source center line be in the r border circular areas light source sends, center line is through the center of border circular areas; The last point coordinates of FG be (x, z), light from light source point to (x, z) (x0 z0), thereby determines the drift angle that light source emits beam through the point on the FG, luminous flux in drift angle equals that circular area multiply by illumination in the corresponding objective plane, finally solves the numerical solution of FG curve according to the differential equation.
4. street lamp lens as claimed in claim 1 is characterized in that, the line segment of the positive half section profile of described longitudinal cross-section comprises that the incident facial contour comprises line segment ab, bottom profile is line segment bc, the fully reflecting surface profile is curve cd, and the transition face profile is curve de, and the exit facet profile is curve ef.
5. street lamp lens as claimed in claim 4 is characterized in that, the building method of ef curve is:
Ab and ef line constitute two-dimensional lens, revolve three-sixth turn by the Z axle, spend luminous energy in the β angle from 0 to redistribute at the radius perpendicular to the objective plane of led light source center line be in the r border circular areas light source sent, and center line is through the center of border circular areas; Suppose that light source is a spot light, the last point coordinates of ef is (y, z), light from light source point to (y, z) be incident ray, from (y is an emergent ray to objective plane z), luminous flux in drift angle equals that circular area multiply by illumination in the corresponding objective plane, finally solves the numerical solution of ef curve according to the differential equation; Wherein ab is the free curve that is adjusted according to the actual luminous intensity distribution of LED.
6. street lamp lens as claimed in claim 1, it is characterized in that: the light path that light source sent comprises low-angle light path and wide-angle light path, refraction arrives exit facet to described low-angle light path through the plane of incidence in order to send from light source, and then through superrefraction, from the exit facet outgoing, all light that form rectangular light spot in the vertical level of certain distance are formed, described low-angle light path at the angle of the vertical line of described the above lens of lateral cross section within 80 degree, described low-angle light path on the described fore-and-aft plane with the angle of described vertical line within 80 degree; Refraction arrives peripheral fully reflecting surface to described wide-angle light path through the plane of incidence in order to send from light source, arrive transition face through the reflection back, and then through superrefraction from the lens outgoing, light concentrates within the above-mentioned rectangular light spot, thereby the light of central area is further strengthened compensation.
7. street lamp lens as claimed in claim 1 is characterized in that, the material of described lens is polymethyl methacrylate, Merlon or glass.
8. street lamp lens as claimed in claim 1 is characterized in that, described lens be single installation or a plurality of array with the luminescent panel of LED correspondence on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100549357A CN101684919B (en) | 2009-07-16 | 2009-07-16 | Led street lamp lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100549357A CN101684919B (en) | 2009-07-16 | 2009-07-16 | Led street lamp lens |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101684919A true CN101684919A (en) | 2010-03-31 |
| CN101684919B CN101684919B (en) | 2012-01-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100549357A Expired - Fee Related CN101684919B (en) | 2009-07-16 | 2009-07-16 | Led street lamp lens |
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| Country | Link |
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| CN (1) | CN101684919B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102162625A (en) * | 2011-01-30 | 2011-08-24 | 深圳市众明半导体照明有限公司 | Large-angle LED and LED lamp |
| CN102494298A (en) * | 2011-11-29 | 2012-06-13 | 天津工业大学 | Design method of array free curved lens for LED street lamp |
| CN107448781A (en) * | 2017-08-09 | 2017-12-08 | 上海小糸车灯有限公司 | A kind of LED collimation Uniform Illumination structure and its implementation for rectangle vehicle light shape |
| CN110596892A (en) * | 2019-09-19 | 2019-12-20 | 杭州昌松光学有限公司 | Square lens, light-emitting structure and lamp thereof |
| CN111964008A (en) * | 2020-08-28 | 2020-11-20 | 宁波公牛光电科技有限公司 | Lens, light source module, photoelectric module and ceiling lamp |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102889550B (en) * | 2012-09-28 | 2013-12-25 | 清华大学深圳研究生院 | Lens |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3076966B2 (en) * | 1996-06-14 | 2000-08-14 | スタンレー電気株式会社 | Light emitting diode element |
| CN100470853C (en) * | 2004-09-17 | 2009-03-18 | 清华大学 | Novel alignment light emitting diode packaging construction |
| DE202005007500U1 (en) * | 2005-05-12 | 2005-07-21 | Zweibrüder Optoelectronics GmbH | flashlight |
| CN100487303C (en) * | 2007-02-12 | 2009-05-13 | 深圳市邦贝尔电子有限公司 | LED road lamp and its lens |
| KR100756174B1 (en) * | 2007-02-20 | 2007-09-05 | 주식회사 세코닉스 | Focusing lens for led |
| CN201531819U (en) * | 2009-07-16 | 2010-07-21 | 江苏伯乐达光电科技有限公司 | led streetlight lens |
-
2009
- 2009-07-16 CN CN2009100549357A patent/CN101684919B/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102162625A (en) * | 2011-01-30 | 2011-08-24 | 深圳市众明半导体照明有限公司 | Large-angle LED and LED lamp |
| CN102494298A (en) * | 2011-11-29 | 2012-06-13 | 天津工业大学 | Design method of array free curved lens for LED street lamp |
| CN107448781A (en) * | 2017-08-09 | 2017-12-08 | 上海小糸车灯有限公司 | A kind of LED collimation Uniform Illumination structure and its implementation for rectangle vehicle light shape |
| CN107448781B (en) * | 2017-08-09 | 2023-11-03 | 华域视觉科技(上海)有限公司 | LED collimation uniform lighting structure for rectangular car lamp modeling and implementation method thereof |
| CN110596892A (en) * | 2019-09-19 | 2019-12-20 | 杭州昌松光学有限公司 | Square lens, light-emitting structure and lamp thereof |
| CN111964008A (en) * | 2020-08-28 | 2020-11-20 | 宁波公牛光电科技有限公司 | Lens, light source module, photoelectric module and ceiling lamp |
| CN111964008B (en) * | 2020-08-28 | 2022-08-16 | 宁波公牛光电科技有限公司 | Lens, light source module, photoelectric module and ceiling lamp |
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| Publication number | Publication date |
|---|---|
| CN101684919B (en) | 2012-01-11 |
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