CN101625103B - LED lens and array structure thereof - Google Patents
LED lens and array structure thereof Download PDFInfo
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- CN101625103B CN101625103B CN200910115467XA CN200910115467A CN101625103B CN 101625103 B CN101625103 B CN 101625103B CN 200910115467X A CN200910115467X A CN 200910115467XA CN 200910115467 A CN200910115467 A CN 200910115467A CN 101625103 B CN101625103 B CN 101625103B
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- lens
- led
- led lamp
- main body
- center line
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V5/00—Refractors for light sources
- F21V5/007—Array of lenses or refractors for a cluster of light sources, e.g. for arrangement of multiple light sources in one plane
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V5/00—Refractors for light sources
- F21V5/04—Refractors for light sources of lens shape
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
- F21W2131/10—Outdoor lighting
- F21W2131/103—Outdoor lighting of streets or roads
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The invention discloses an LED lens and an array structure thereof, relating to the field of illumination. When an LED lamp is used as a street lamp, the lens is used for enhancing the road illumination efficiency to utilize lights emitted by the bottom of a lens main body. The LED lens comprises the lens main body. The lens main body comprises a three-dimensional coronal plane and a three-dimensional bottom surface, the upper part of the three-dimensional coronal plane and the upper part of the three-dimensional bottom surface refract lights, the aperture at the upper part of the bottom surface is bigger than the aperture at the lower part of the bottom surface, the coronal surface is connected with the bottom surface together, and an LED lamp cavity which extends into the main body is arranged on the bottom surface of the main body; and the bottom surface comprises a three-dimensional reflection surface which reflects the lights to the coronal surface. A lens array comprises a plurality of lenses which form the array; a connecting part is arranged between every two adjacent lenses; and a groove is arranged at the joint of the connecting part and the bottom surface of the lens, and the surface of the groove is an arc surface. The invention is mainly used for illumination lamps at places such as the street lamps, corridors and the like.
Description
Technical field
The present invention relates to the LED lighting field, particularly relate to a kind of LED lens.
Background technology
The lens arrangement of existing LED lamp such as Chinese patent number are called " secondary optical lens ", open day were described in the patent document on October 29th, 2008 for ZL200720172454.2, name.Its surface is peanut shape, on the bottom surface of lens body, is provided with LED lamp chamber, and LED lamp chamber is located at the intersection point center of vertical (length direction) symmetrical center line in bottom surface and horizontal (Width) symmetrical center line.The LED lamp is arranged in the LED lamp chamber, and the LED lamp is realized optically focused, distributed optical illumination through the LED lens.
The bottom surface of the lens of above-mentioned LED lamp is flat, and the light great majority that sent by LED reflect lens body via crown upper surface, but the attachment that the light that has sub-fraction to reflect lens by crown bottom can be positioned at around the lens bottom blocks.Therefore this part light be wasted, and current LED lamp can't get up this part light-use.
Summary of the invention
First technical matters to be solved by this invention is: a kind of LED lens are provided, and when the LED lamp was as street lamp, these lens were used for improving road lighting efficient, will be used by the light that send the lens body bottom.
Second technical matters to be solved by this invention is: a kind of LED array structure thereof is provided, and when the LED lamp was as street lamp, this lens arra was used for improving the illumination efficiency on road surface, will be used by the light that send the lens body bottom.
In order to solve above-mentioned first technical matters, the present invention proposes a kind of LED lens, comprises the main body of lens, and main body comprises the three-dimensional crown and the three-dimensional bottom surface of top refraction bright dipping, and the first half profile of lens is the peanut shape of profile symmetry; Crown and bottom surface connect together, and on the bottom surface of main body, are provided with the LED lamp chamber of stretching into body interior; Said bottom surface comprises the three-dimensional reflecting surface that has to said crown reflection ray, and the port cross-sectional area of bottom surface is bigger than the cross-sectional area of lower port.Said bottom surface also comprises the reference field that is used for the LED lamp is positioned cooperation, reference field be positioned at said LED lamp chamber around, the periphery of reference field is said reflecting surface.Said main body profile is a symmetrical structure, comprises lateral symmetry center line and vertical symmetrical center line, the position, intermediate recess place that said lateral symmetry center line is a peanut shape; The center in said lamp chamber is located on the lateral symmetry center line of said peanut shape, and departs from vertical symmetrical center line of peanut shape.Three-dimensional crown and three-dimensional bottom surface are meant that the 3 D stereo of solid angle face is all arranged.The top bore of bottom surface refers to that greater than the bottom bore three-dimensional bottom surface port cross-sectional area is bigger than the area of lower port xsect.Crown is a plane of refraction, and the light that LED is sent is assigned to the road surface according to the luminous energy of brightness lighting requirement.The lens cambered surface: reflecting surface is that the light in the big cone angle that LED is sent reflects to crown, and crown is assigned to the road surface according to the luminous energy of brightness lighting requirements such as road surface.
In order to solve second technical matters of the present invention, the present invention proposes a kind of LED array structure thereof, comprises a plurality of lens of forming array; Each lens comprises the main body of lens, and main body comprises the three-dimensional crown and the three-dimensional bottom surface of top refraction bright dipping, and the first half profile of lens is the peanut shape of profile symmetry; Crown and bottom surface connect together, and on the bottom surface of main body, are provided with the LED lamp chamber of stretching into body interior; Said bottom surface comprises the three-dimensional reflecting surface that has to said crown reflection ray, and the port cross-sectional area of bottom surface is bigger than the cross-sectional area of lower port.Said bottom surface also comprises the reference field that is used for the LED lamp is positioned cooperation, reference field be positioned at said LED lamp chamber around, the periphery of reference field is said reflecting surface.Said main body profile is a symmetrical structure, comprises lateral symmetry center line and vertical symmetrical center line, the position, intermediate recess place that said lateral symmetry center line is a peanut shape; The center in said lamp chamber is located on the lateral symmetry center line of said peanut shape, and departs from vertical symmetrical center line of peanut shape.
(deleting this section)
Preferably: said reference field is the plane.Reference field is lens and the place that contacts of LED lamp, and flat reference field helps lens and LED lamp accurate in locating and stable being connected.
Preferably: said reflecting surface is the flat slope face that slope equals 1, and perhaps reflecting surface is a cambered surface.Just the axial section intersection of reflecting surface is straight line or camber line.The axial section of reflecting surface is meant the tangent plane through the axis of symmetry of (Z axle) on the three-dimensional reflecting surface short transverse, the intersection of axial section intersection spindle tangent plane and reflecting surface.
Said main body profile is a symmetrical structure; The center in said lamp chamber is located at departs from bottom surface symcenter point and on the position of a symmetrical center line of passing center, lamp chamber.The light that the design in this asymmetrical LED lamp chamber can make the LED street lamp send more is partial to a side, accomplishes the asymmetric batswing tab luminous intensity distribution of road lighting TYPE I, TYPE II, TYPEIII etc.; During application, the light that sends then can more be concentrated according to the road surface, makes in the whole width range in road surface and can access more illumination, and its illuminating effect is better like this, and illumination efficiency is higher.
Preferably: the said symcenter point of misalignment in said LED lamp chamber is apart from 1.0mm～1.4mm.
Preferably: said LED lamp chamber is a semicircular cavities.
Preferably: between per two adjacent lenses unit connecting portion is arranged, there is chase the junction, bottom surface of connecting portion and lens unit, and the chase face of chase is three-dimensional cambered surface.Connecting portion is two lens requisite parts when connecting, and connecting portion can make the reflecting surface of bottom surface a breach occur, and this chase structure can reflect the light of missing the breach from the bottom reflection face to crown.
Beneficial effect of the present invention is following:
Compare prior art; The bottom surface of lens body is designed with the reflecting surface (like arcwall face) of reflection ray function, and the light that sends from the lens body bottom like this can be reflexed on the plane of refraction above the main body by reflecting surface, sends again; So just can make full use of the light that sends by the lens body bottom; Under the square one, prior art is greatly improved the utilization factor of luminous energy relatively.
Figure of description
Fig. 1 is the three-dimensional structure diagram of a kind of LED lens of the present invention.
Fig. 2 is the front view (FV) of LED lens of the present invention bottom surface.
Fig. 3 is along the sectional view of A-A direction among Fig. 2.
Fig. 4 is along the sectional view of B-B direction among Fig. 2.
Fig. 5 is the Facad structure figure of LED array structure thereof of the present invention.
Fig. 6 is along the sectional view of C-C direction among Fig. 5.
Fig. 7 is along the sectional view of D-D direction among Fig. 5.
Fig. 8 is an E portion partial enlarged drawing among Fig. 7.
Fig. 9 is the distribution of light synoptic diagram in a lateral direction of lens.
Figure 10 is the distribution of light synoptic diagram on the longitudinal direction of lens.
Identifier declaration among the figure: body 1, LED lamp chamber 2, bottom surface 3, crown 4, vertical symmetrical center line 5, lateral symmetry center line 6, intersection point 7, connecting portion 8, chase 9, reflectance volume face and the separatrix 10, planar section 300, the cambered surface part 301 that reflect three-dimensional face.
Embodiment
The present invention provides the array structure of a kind of LED lens and these LED lens.
The structure of these LED lens referring to Fig. 1 to structure shown in Figure 4.The first half profile of lens is the peanut shape of profile symmetry.The main body 1 of lens comprises the crown 4 of top perspective and bottom surface 3 these two faces of following solid.The center of bottom surface 3 is intersection point 7 positions of vertical symmetrical center line 5 in bottom surface and lateral symmetry center line 6.Vertically symmetrical center line 5 is the bottom surface symmetrical center line on the lens body length direction, and lateral symmetry center line 6 is the bottom surface symmetrical center line on the body width direction.
On the bottom surface 3 of main body 1, be provided with the LED lamp chamber 2 of stretching into body interior, LED lamp chamber 2 is a semicircular cavities.LED lamp chamber 2 is located on the lateral symmetry center line 6, and with respect to vertical central axis 5 asymmetric settings, i.e. the misalignment intersection point 7 in LED lamp chamber 2.The misalignment intersection point 7 position 1.0mm～1.4mm in LED lamp chamber 2.
The top bore of bottom surface 3 is greater than the bottom bore, and intersection point 7 is a bottom centre.Referring to Fig. 1～Fig. 4, it comprises planar section 300 and cambered surface part 301, and wherein planar section 300 is a reference field; Cambered surface part 301 is for having the three-dimensional reflecting surface to crown 4 reflection rays; Accomplish the reflection task by cambered surface part 301, at this moment, cambered surface part 301 is a camber line with the intersection of axial section.Axial section structural drawing as shown in Figure 4, cambered surface part 301 account for whole bottom surface 3 what design as required.The arch section 301 and the plane of refraction 4 of bottom surface 3 are docking together.
Second kind of situation of bottom surface 3 is: bottom surface 3 has only cambered surface part 301, and does not have planar section 300.This structure does not have above-mentionedly have the structure of planar section 300 superior, particularly when the LED lamp is installed, seems very inconvenient.
In addition, in some design, reflecting surface and axial section intersection also can be straight lines, and promptly reflecting surface is the table top with certain pitch angle.
LED array structure thereof of the present invention is as shown in Figure 5, and the array shown in the figure is made up of 12 LED lens.
Referring to Fig. 6, Fig. 7 and shown in Figure 8, between per two adjacent lenses connecting portion 8 is arranged, connecting portion 8 has chase 9 with 3 junctions, bottom surface of lens, and the chase face of chase 9 is three-dimensional cambered surface.
Distribution of light principle of the present invention such as Fig. 9 and shown in Figure 10.Dotted line is a light among the figure.
Fig. 9 is that the slit is filled up with silica gel after placing the LED lamp in the LED lamp chamber, the schematic diagram of the lateral luminous scope of lens, and when this light emitting region of lens is represented it as street lamp, the actual scope that can shine that can be on the width of roadway direction.Can know that by Fig. 9 in fact this asymmetric in a lateral direction setting has limited the light scope of sending to the left, and enlarged the scope that light sends to the right, so just well make the road surface obtain centralized lighting, improve illumination efficiency.
Figure 10 is after placing the LED lamp in the LED lamp chamber, the schematic diagram of the vertical light emitting region of lens, and when this light emitting region of lens is represented it as street lamp, can be along the actual scope that can shine on the length direction on road.Can be known that by Figure 10 because the effect of the bottom surface 3 of curved reflecting surface, the light (stereoscopic beam) that makes the LED lamp press close to bottom surface 3 to send all is used effectively, promptly reflectance volume face and the light that sends of separatrix 10 below of the three-dimensional face of refraction are all through ejaculation after 3 reflections of bottom surface.Light in this stereoscopic beam angle obtains utilizing, thereby improves the utilization ratio of light.
Claims (11)
1. LED lens comprise the main body of lens, and main body comprises the three-dimensional crown and the three-dimensional bottom surface of top refraction bright dipping, and the first half profile of lens is the peanut shape of profile symmetry; Crown and bottom surface connect together, and on the bottom surface of main body, are provided with the LED lamp chamber of stretching into body interior; It is characterized in that:
Said bottom surface comprises the three-dimensional reflecting surface that has to said crown reflection ray, and the port cross-sectional area of bottom surface is bigger than the cross-sectional area of lower port;
Said bottom surface also comprises the reference field that is used for the LED lamp is positioned cooperation, reference field be positioned at said LED lamp chamber around, the periphery of reference field is said reflecting surface;
Said main body profile is a symmetrical structure, comprises lateral symmetry center line and vertical symmetrical center line, the position, intermediate recess place that said lateral symmetry center line is a peanut shape; The center in said lamp chamber is located on the lateral symmetry center line of said peanut shape, and departs from vertical symmetrical center line of peanut shape.
2. LED lens according to claim 1 is characterized in that: said reference field is the plane.
3. LED lens according to claim 1 is characterized in that: said reflecting surface is the flat slope face that slope equals 1, and perhaps reflecting surface is a cambered surface.
4. LED lens according to claim 1 is characterized in that: the said symcenter point of misalignment in said LED lamp chamber is apart from 1.0mm～1.4mm.
5. LED lens according to claim 1 is characterized in that: said LED lamp chamber is a semicircular cavities.
6. a LED array structure thereof comprises a plurality of lens of forming array; Each lens comprises the main body of lens, and main body comprises the three-dimensional crown and the three-dimensional bottom surface of top refraction bright dipping, and the first half profile of lens is the peanut shape of profile symmetry; Crown and bottom surface connect together, and on the bottom surface of main body, are provided with the LED lamp chamber of stretching into body interior; It is characterized in that:
Said bottom surface comprises the three-dimensional reflecting surface that has to said crown reflection ray, and the port cross-sectional area of bottom surface is bigger than the cross-sectional area of lower port;
Said bottom surface also comprises the reference field that is used for the LED lamp is positioned cooperation, reference field be positioned at said LED lamp chamber around, the periphery of reference field is said reflecting surface;
Said main body profile is a symmetrical structure, comprises lateral symmetry center line and vertical symmetrical center line, the position, intermediate recess place that said lateral symmetry center line is a peanut shape; The center in said lamp chamber is located on the lateral symmetry center line of said peanut shape, and departs from vertical symmetrical center line of peanut shape.
7. LED array structure thereof according to claim 6 is characterized in that: said reference field is the plane.
8. LED array structure thereof according to claim 6 is characterized in that: said reflecting surface is the flat slope face that slope equals 1, and perhaps reflecting surface is a cambered surface.
9. LED array structure thereof according to claim 6 is characterized in that: the said symcenter point of misalignment in said LED lamp chamber is apart from 1.0mm～1.4mm.
10. LED array structure thereof according to claim 6 is characterized in that: said LED lamp chamber is a semicircular cavities.
11. LED array structure thereof according to claim 6 is characterized in that: between per two adjacent lenses connecting portion is arranged, there is chase the junction, bottom surface of connecting portion and lens, and the chase face of chase is three-dimensional cambered surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910115467XA CN101625103B (en) | 2009-06-01 | 2009-06-01 | LED lens and array structure thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910115467XA CN101625103B (en) | 2009-06-01 | 2009-06-01 | LED lens and array structure thereof |
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| CN101625103A CN101625103A (en) | 2010-01-13 |
| CN101625103B true CN101625103B (en) | 2012-01-11 |
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| CN200910115467XA Active CN101625103B (en) | 2009-06-01 | 2009-06-01 | LED lens and array structure thereof |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102207268A (en) * | 2011-06-29 | 2011-10-05 | 珠海亮码光电科技有限公司 | LED street lamp with efficient rectangular light distribution function |
| CN103807627B (en) * | 2012-11-13 | 2017-05-10 | 欧司朗有限公司 | Light emitting module and illumination device with light emitting module |
| CN108180411B (en) * | 2012-12-21 | 2020-11-17 | 陈安 | Brightness adjusting method of desk lamp |
| WO2015165096A1 (en) * | 2014-04-30 | 2015-11-05 | 广东恒润光电有限公司 | Strip-shaped lens for use in led lamp and wide-angle led lamp |
| CN105351885B (en) * | 2015-12-05 | 2018-10-23 | 中山市华南理工大学现代产业技术研究院 | A kind of optical lens design method of automobile LED front fog lamp |
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Owner name: CHINA ENERGY SAVING LATTICELIGHTING CO., LTD. Free format text: FORMER NAME: JIANGXI JINGHE LIGHTING CO., LTD. |
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Address after: 330096, No. 699 AI Sihu Road, Nanchang hi tech Development Zone, Jiangxi, China Patentee after: CECEP LatticeLighting Co., Ltd. Address before: 330029, No. 699 AI Sihu Road, Nanchang hi tech Development Zone, Jiangxi, China Patentee before: Jiangxi Jinghe Lighting Co., Ltd. |
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Address after: 330096 no.689, aixihu North Road, high tech Development Zone, Nanchang City, Jiangxi Province Patentee after: China energy saving Jinghe Technology Co.,Ltd. Address before: 330096 no.689, aixihu North Road, high tech Development Zone, Nanchang City, Jiangxi Province Patentee before: CECEP LATTICELIGHTING Co.,Ltd. |
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