CN101013193A - Condensing lens used for large power LED lamp - Google Patents
Condensing lens used for large power LED lamp Download PDFInfo
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- CN101013193A CN101013193A CN 200710067022 CN200710067022A CN101013193A CN 101013193 A CN101013193 A CN 101013193A CN 200710067022 CN200710067022 CN 200710067022 CN 200710067022 A CN200710067022 A CN 200710067022A CN 101013193 A CN101013193 A CN 101013193A
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Abstract
The invention discloses a high-power LED condenser lens, which is used with the LED lighting chip component. The first surface of the condenser lens is plane or concave, and the convex of the second surface is composite curve surface, with symmetry axis, and the transition surface of the intersection surface of the composite curve surface is the surface continuous transition. Since the condenser lens convex surface has the composite curve surface, making the light exposed to condenser lens can be conducted to the illuminated position on configure requirement, with re-distribution, to meet different requirements of multiple ways. The invention is used with the plane and convex LED lighting chip component, and in favor of driving more wide application of the high-power LEDs, especially the applications of highways, tunnel lighting, and achieving energy saving.
Description
Technical field
The present invention relates to toric lens or multifocal lens.Specifically a kind of collector lens of and high-powered LED lamp adapted.
Background technology
High-powered LED lamp has begun be applied aspect street lamp, Tunnel Lamp, High-Pole Lamp, floodlight, explosion-proof row, shot-light, Landscape Lamp, the extraordinary lamp at present.The LED light fixture has low in energy consumption, and the luminosity factor height is pollution-free, the characteristics that the life-span is long.
Carry according to Chinese patent 200520122277.8 disclosed " a kind of high power led lighting street lamp ": this lamp advantage is: energy consumption is low, light efficiency is high, free from glare, modern design, production technology simple in structure, cheap, reasonable in design, simple, in light weight, long service life, and is easy to maintenance, can be used with power-type wind energy and sun power; And be used on the overhead and superelevation frame street lighting with big luminescence efficiency and big luminous flux, it is through lens back lighting angle little (＜45 degree are for many), can not fully send out the brightness effect, emission angle for the LED luminescence chip of plane is 140 degree, adapted with it, common collector lens can not satisfy the requirement aspect wide-angle.As when the white light cake core is used for street lighting, special illumination zone is difficult to be complementary with the road lighting standard more, and the edge of area of illumination also can produce yellow circle sometimes, thereby influences its application.
Summary of the invention
The objective of the invention is to provide a kind of organization plan of condensing lens used for large power LED lamp, above-mentioned deficiency is overcome.Solve the distribution problem of optical illumination under the light angle.
Collector lens of the present invention is used based on the design of lens composite surface shape.
Condensing lens used for large power LED lamp of the present invention is characterized in that first of described collector lens is plane or concave surface, and second convex surface is a compound curved surface, this compound curved surface symmetrical, and the transition face of composite surface shape intersection interface is the face continuous transition.
Described compound curved surface, mutually compound by the annular sphere of rims of the lens with the center sphere.
Described compound curved surface, mutually compound by the annular sphere of rims of the lens with the center aspheric surface.
Described compound curved surface is in vertical and horizontal direction difference symmetrical.
The centrode of the annular sphere of described rims of the lens and the central shaft of lens are separated.
Described first is the plano-convex lens on plane, and its outer, plane is provided with shoulder, is provided with depression in the middle of the plane.
Effect of the present invention:
Because the convex surface of collector lens is provided with composite surface, the light that shines on the collector lens can be passed to illuminated place by setting requirement, redistribute (for example oval distribution, annular distribute), make it more targeted, thereby satisfy many-sided different needs; Shoulder and depression are set in the plane, have then made things convenient for the installation of LED luminescence chip element and the improvement of illumination performance.The present invention will help to promote high-powered LED lamp and use more widely, particularly the application of highway, tunnel illumination aspect after being used for LED luminescence chip element adapted with plane and convex-surface type.Appear its energy-saving effect economically suddenly.
Description of drawings
Fig. 1 is the structural representation of condensing lens used for large power LED lamp of the present invention.
Fig. 2 is the key diagram that concerns of LED luminescence chip and collector lens.
Fig. 3 is the structural representation that is provided with collector lens recessed in the middle of shoulder and the plane.
Fig. 4 is the vertical view of Fig. 2.
Fig. 5 is the smaller embodiment of light angle.
Fig. 6 is that the lens center contains aspheric embodiment.
Fig. 7 is the situation that street lamp is installed.
Fig. 8 is the illumination synoptic diagram of highway lamp.
Fig. 9 is a Guang Xian Zhui Trace principle schematic.
Figure 10 is the synoptic diagram of collector lens Guang Xian Zhui Trace.
Figure 11 is the synoptic diagram of collector lens Guang Xian Zhui Trace.
Embodiment
Be described further below in conjunction with embodiment and accompanying drawing thereof.
Referring to accompanying drawing.Fig. 1 has provided condensing lens used for large power LED lamp of the present invention.First of collector lens is plane or concave surface, approaching with light source, and second lens convex surface is a compound curved surface, this compound curved surface symmetrical, and the transition face of composite surface shape intersection interface is the face continuous transition.Said symmetrical comprises along optical axis in other words along the rotational symmetry of lens center axle.The perhaps horizontal symmetrical of the vertical symmetry of above-below direction and fore-and-aft direction.Because demand is various.Lens among the figure: the 1st, plane, the 2nd, compound curved surface.Annular (basic side) sphere of 3 expression rims of the lens, the 4th, transition face, the 5th, lens center sphere, interface continuous transition can avoid producing the illumination Overcast shadow at interface.When being concave surface for first, be more suitable for LED luminescence chip element adapted with arc convex surface.The application of compound curved surface lens helps to utilize this light source to carry out wide-angle illumination.
Shown in Figure 2, for the ease of installing, the edge of lens is provided with shoulder 6.The light source of front, plane is a LED luminescence chip element 7.Its emission angle is 70 (* 2=140) degree.Marginal ray is after the incident angle on first face is determined, from second glazed thread convergence angle (* 2=80) degree that has only 40.Situation than common concentric circles glass bulb has reduced too much.Irradiating angle during 10 meters high in street lamp requires to be approximately between 61～126 degree, therefore, light source be moved as far as possible backward, and make the Ru She Jiao Minus of marginal ray on first little.
Be same embodiment shown in Fig. 3,4, the convex surface face shape on the vertical and horizontal direction is different.Be provided with depression 8 in the middle of the plane of collector lens.The shape of depression similarly is a pond of sinking to the plane, its base angle arc transition.The bottom surface is circular-arc.Its convex surface is a compound curved surface, and is mutually compound by two quadrature spheres in annular sphere and center of rims of the lens.Move behind the light source, if the incident angle of marginal ray reduces, the angle of corresponding emergent ray can be big.Wherein removing 1 is the plane, the 2nd, and compound curved surface.The 3rd, annular sphere, the 4th, transition face, the 5th, the lens center composite sphere, the 6th, outside the shoulder, the 9th, another composite sphere.The compound curved surface face shape of horizontal direction is milder among Fig. 4, and corresponding emergent ray angle is less.Its vertical and horizontal direction is the just in time corresponding both direction in length and breadth 126 and 61 lighting requirements of spending on road surface form the surround of elliptical shape.
For the illumination of six meters bar height highways, its irradiating angle will be brought up to 116～160 degree nearly.
Fig. 5 synoptic diagram is represented another embodiment, and lighting area is more smaller relatively.The plane that changes first face is a sphere, can increase the convergence of emergent ray after the increasing incident angle.Do not lie in angle and be that luminous energy distributes just like what box illumination was wanted.
The compound curved surface of Fig. 6 represents to have adopted ellipsoid, and is mutually compound with the center ellipsoid by the annular sphere of rims of the lens.Generally speaking, when suitably taking into account even illumination, the participation of aspheric surface 10 can solve the different distributions problem of illumination equally.
The street lamp installation situation that Fig. 7 represents.
The other lamp stand spacing of highway is 30 meters, installs at the height of H=10 rice bar, illuminate about 20 meters wide * 36, road surface meter long scope under the lamp.Center, the oblique road of illuminating lamp.The subtended angle of lamp position: laterally being 64 degree, vertically is 122 degree.
So, transverse illumination angle ≌ 64 degree of light fixture, longitudinal illumination angle ≌ 122 degree.By six meters, the transverse illumination angle ≌ 73 of light fixture spends for tunnel lamp stand height, longitudinal illumination angle ≌ 143 degree.(should use the convex surface chip component instead)
Fig. 8 is the street lighting synoptic diagram, the six meters high examples that are set to, from hitting exactly downward surround oval in shape, records the Illumination Distribution on ground with a kind of LED lamp of 30W of the present invention, and brightness value distributes as shown from high to low, and its value is followed successively by:
①1.0；②0.57；③0.44；④0.35：⑤0.30。The minimal illumination at edge nearly is 1/3 of a highlighted place brightness value.
In the application, (the incandescent lamp effect of six meters high illuminating effects of 2 * 30W) LED and 250W is suitable for two of the two lamps illuminations of employing.
Fig. 9 is a Guang Xian Zhui Trace principle institute Succinct representation.Light is propagated with medium density in medium and is changed.When undergo mutation in the interface, the refraction law n sinI=n sinI ' that uses up carries out Zhui Trace.
As shown, enter optical glass (refractive index 1.33 of water is approached in optically denser medium n=1.51～1.64, quartz glass) incident angle α＞refraction angle α ' from air (optically thinner medium n=1), otherwise when glass enters air, refraction angle I '＞incident angle I.
Shown in Figure 10 is the situation that carries out the transition to collector lens of the present invention from the prism angle special case of Fig. 9.Select the marginal ray of LED luminescence chip element, penetrate with 70 degree angles, can and calculate position by mapping through the emergent ray behind two faces at h height.The central shaft of the centrode of the annular sphere of rims of the lens and lens is separated in the legend.
Situation and Figure 10 shown in Figure 11 are similar, select different light (preferred feature light) all can find its final Hang Trace.The centrode of the annular sphere of rims of the lens is coaxial with the center of lens in the example.Central shaft more is partial in the convergence of its marginal ray.By selecting different compound curved surface face shapes can change the trend of emergent ray, realize that the illumination on the plane of illumination distributes as required.
Claims (6)
1, a kind of condensing lens used for large power LED lamp, first that it is characterized in that described collector lens is plane (1) or concave surface, second convex surface is compound curved surface (2), this compound curved surface symmetrical, and the transition face (4) of composite surface shape intersection interface is the face continuous transition.
2, condensing lens used for large power LED lamp according to claim 1 is characterized in that said compound curved surface (2), and is mutually compound by the annular sphere (3) and the center sphere (5,9) of rims of the lens.
3, condensing lens used for large power LED lamp according to claim 1 is characterized in that said compound curved surface (2), and is mutually compound with center aspheric surface (10) by the annular sphere (3) of rims of the lens.
4, condensing lens used for large power LED lamp according to claim 1 is characterized in that said compound curved surface (2), in vertical and horizontal direction difference symmetrical.
5, condensing lens used for large power LED lamp according to claim 1 is characterized in that the centrode of annular sphere (3) of said rims of the lens and the central shaft of lens are separated.
6, condensing lens used for large power LED lamp according to claim 1 is characterized in that said first is the plano-convex lens on plane, and its outer, plane is provided with shoulder (6), is provided with depression (8) in the middle of the plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200710067022XA CN100507633C (en) | 2007-01-31 | 2007-01-31 | Condensing lens used for large power LED lamp |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200710067022XA CN100507633C (en) | 2007-01-31 | 2007-01-31 | Condensing lens used for large power LED lamp |
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| CN101013193A true CN101013193A (en) | 2007-08-08 |
| CN100507633C CN100507633C (en) | 2009-07-01 |
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| CNB200710067022XA Expired - Fee Related CN100507633C (en) | 2007-01-31 | 2007-01-31 | Condensing lens used for large power LED lamp |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009030121A1 (en) * | 2007-09-07 | 2009-03-12 | Xiaobing Hu | A led lamp |
| US7800840B2 (en) | 2008-09-10 | 2010-09-21 | E-Pin Optical Industry Co., Ltd. | Convex-fresnel LED lens and LED assembly thereof |
| CN101881415A (en) * | 2010-08-09 | 2010-11-10 | 李效志 | Once light-distribution optical lens of high-power LED street lamp |
| WO2010139247A1 (en) * | 2009-05-31 | 2010-12-09 | Byd Company Limited | Led lens and led street lamp comprising the same |
| US7980733B2 (en) | 2008-06-30 | 2011-07-19 | E-Pin Optical Industry Co., Ltd. | Aspherical LED angular lens for wide distribution patterns and LED assembly using the same |
| US7993035B2 (en) | 2008-06-30 | 2011-08-09 | E-Pin Optical Industry Co., Ltd. | Aspherical LED angular lens for narrow distribution patterns and LED assembly using the same |
| US8011811B2 (en) | 2008-06-30 | 2011-09-06 | E-Pin Optical Industry Co., Ltd. | Aspherical LED angular lens for central distribution patterns and LED assembly using the same |
| US8042975B2 (en) | 2008-09-10 | 2011-10-25 | E-Pin Optical Industry Co., Ltd. | Plano-fresnel LED lens and LED assembly thereof |
| CN102252265A (en) * | 2011-04-13 | 2011-11-23 | 胡文松 | Light transmission shell capable of transmitting strong light and wide-angle light of light source |
| CN102297381A (en) * | 2011-09-27 | 2011-12-28 | 福建蓝蓝高科技发展有限公司 | Secondary light distribution device for LED (Light-Emitting Diode) ring-like light |
| CN101676615B (en) * | 2008-09-19 | 2012-05-23 | 一品光学工业股份有限公司 | Convex Fresnel LED optical lens for angular distribution patterns and LED assembly thereof |
| CN101776243B (en) * | 2010-02-03 | 2012-12-26 | 海洋王照明科技股份有限公司 | Lamp capable of forming strip light spots and transmission element thereof |
| CN104133284A (en) * | 2014-07-09 | 2014-11-05 | 济南坤锐光学科技有限公司 | Yellow-circle and yellow-spot extinguishing small-angle light distribution lens group and light distribution method used for illuminating system |
| US10659668B2 (en) | 2017-10-10 | 2020-05-19 | Lumileds Holding B.V. | Flash device comprising a plurality of LEDs, a Fresnel lens, and a lens array |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102563528B (en) * | 2012-01-18 | 2014-05-14 | 佑图物理应用科技发展(武汉)有限公司 | Plano-convex composite aspherical lens of LED (light-emitting diode) for stage |
-
2007
- 2007-01-31 CN CNB200710067022XA patent/CN100507633C/en not_active Expired - Fee Related
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009030121A1 (en) * | 2007-09-07 | 2009-03-12 | Xiaobing Hu | A led lamp |
| US7980733B2 (en) | 2008-06-30 | 2011-07-19 | E-Pin Optical Industry Co., Ltd. | Aspherical LED angular lens for wide distribution patterns and LED assembly using the same |
| US7993035B2 (en) | 2008-06-30 | 2011-08-09 | E-Pin Optical Industry Co., Ltd. | Aspherical LED angular lens for narrow distribution patterns and LED assembly using the same |
| US8011811B2 (en) | 2008-06-30 | 2011-09-06 | E-Pin Optical Industry Co., Ltd. | Aspherical LED angular lens for central distribution patterns and LED assembly using the same |
| US7800840B2 (en) | 2008-09-10 | 2010-09-21 | E-Pin Optical Industry Co., Ltd. | Convex-fresnel LED lens and LED assembly thereof |
| US8042975B2 (en) | 2008-09-10 | 2011-10-25 | E-Pin Optical Industry Co., Ltd. | Plano-fresnel LED lens and LED assembly thereof |
| CN101676615B (en) * | 2008-09-19 | 2012-05-23 | 一品光学工业股份有限公司 | Convex Fresnel LED optical lens for angular distribution patterns and LED assembly thereof |
| WO2010139247A1 (en) * | 2009-05-31 | 2010-12-09 | Byd Company Limited | Led lens and led street lamp comprising the same |
| CN101776243B (en) * | 2010-02-03 | 2012-12-26 | 海洋王照明科技股份有限公司 | Lamp capable of forming strip light spots and transmission element thereof |
| CN101881415A (en) * | 2010-08-09 | 2010-11-10 | 李效志 | Once light-distribution optical lens of high-power LED street lamp |
| CN102252265A (en) * | 2011-04-13 | 2011-11-23 | 胡文松 | Light transmission shell capable of transmitting strong light and wide-angle light of light source |
| CN102297381A (en) * | 2011-09-27 | 2011-12-28 | 福建蓝蓝高科技发展有限公司 | Secondary light distribution device for LED (Light-Emitting Diode) ring-like light |
| CN104133284A (en) * | 2014-07-09 | 2014-11-05 | 济南坤锐光学科技有限公司 | Yellow-circle and yellow-spot extinguishing small-angle light distribution lens group and light distribution method used for illuminating system |
| CN104133284B (en) * | 2014-07-09 | 2016-10-05 | 济南坤锐光学科技有限公司 | A kind of disappear yellow circle and macula lutea low-angle light-distribution lens group and light distributing method for illuminator |
| US10659668B2 (en) | 2017-10-10 | 2020-05-19 | Lumileds Holding B.V. | Flash device comprising a plurality of LEDs, a Fresnel lens, and a lens array |
| US11553124B2 (en) | 2017-10-10 | 2023-01-10 | Lumileds Llc | Illumination system having a Fresnel lens and an array of lenses |
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| Publication number | Publication date |
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| CN100507633C (en) | 2009-07-01 |
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Effective date of registration: 20081205 Address after: Zhejiang province Jinhua City Octopus Road No. 83 post encoding: 321000 Applicant after: Zhejiang Mingchuang Optoelectronic Technology Co., Ltd. Address before: Zhejiang province Quzhou City Juhua Road No. 222 Quzhou celebrity trade limited liability company post encoding: 324000 Applicant before: Su Guangyao |
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Owner name: ZHEJIANG PROVINCE MINGCHUANG TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: SU GUANGYAO Effective date: 20081205 |
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Denomination of invention: Condensing lens used for large power LED lamp Effective date of registration: 20180118 Granted publication date: 20090701 Pledgee: Bank of Jinhua, Limited by Share Ltd, Wucheng branch Pledgor: Zhejiang Mingchuang Optoelectronic Technology Co., Ltd. Registration number: 2018330000020 |
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