CN104534405B - A kind of LED lens - Google Patents
A kind of LED lens Download PDFInfo
- Publication number
- CN104534405B CN104534405B CN201410847343.1A CN201410847343A CN104534405B CN 104534405 B CN104534405 B CN 104534405B CN 201410847343 A CN201410847343 A CN 201410847343A CN 104534405 B CN104534405 B CN 104534405B
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- CN
- China
- Prior art keywords
- light
- lens
- led
- raised
- incidence surface
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
- F21V5/041—Ball lenses
-
- 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
- F21Y2101/00—Point-like light sources
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Lenses (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The present invention relates to LED technology field, more particularly to a kind of LED lens.Wherein, the LED lens include exiting surface and incidence surface, and the exiting surface is in half ellipsoidal surface, and the incidence surface is raised to side；When LED lens are vertically arranged, on the cross sections of C0 180, exiting surface is in circular arc, and incidence surface is in circular arc；On the cross sections of C90 270, exiting surface is raised to the right, and incidence surface is raised to the left, the lens that the present invention is designed so that the light intensity of LED lamp is substantially distributed unanimously apart from upper, and causes the light of LED lamp to be projeced into lower section, saves light source.
Description
Technical field
The present invention relates to LED technology field, more particularly to a kind of LED lens.
Background technology
With the development of society, in order to save urban land use, city incity building more and more higher；In order to beautify city
City's night scene, building beyond the region of objective existence can typically be decorated with ornament lamp, or be covered with LED round the profile of building, and these LEDs are general
Vertical plane setting is perpendicular to, according to the luminous distribution of LED spot light, and LED is distributed on high building, therefore most
Light all projects day in the air, is wasted.Secondly ornament lamp is when luminous, and the light distribution of different distance is different, that is, works as people
During apart from LED different distance, the luminous intensity experienced is different, reduces the decorative effect of ornament lamp.
The content of the invention
It is an object of the invention to solve the deficiencies in the prior art, there is provided a kind of LED lens of asymmetric light distribution, the lens
LED light line can be concentrated on to lower section, it is to avoid ray waste, secondly cause light distribution distance, building is improved so as to reach
Sight and energy-conservation, avoid light pollution.
The technical solution adopted by the present invention is：
A kind of LED lens, the LED lens include exiting surface and incidence surface, the exiting surface be in half ellipsoidal surface, it is described enter
Smooth surface is raised to side；When LED lens are vertically arranged, on C0-180 cross sections, exiting surface is in circular arc, and incidence surface is in circular arc
Shape；On C90-270 cross sections, exiting surface is raised to the right, and incidence surface is raised to the left.
Wherein, the surface equation of the incidence surface is：Z=Z0-（R2-X2+Y3）1/2+aX2+bY+c X2Y；Wherein, Z0、R、a、
B is constant coefficient；The incident curved surfaces are using lens centre as origin, lens horizontal positioned；X represents horizontal direction, and Y represents longitudinal side
To；When semi-minor axis length is e, e+0.2>R>e-0.2：When major semiaxis length is f, f+0.2>Z0>f-0.2：A, b, c are for fine setting
Number, its value exists：Between 0.001 ~ 0.01.
Beneficial effects of the present invention are：The lens that the present invention is designed so that the light intensity of LED lamp is substantially distributed apart from upper
Unanimously, and cause LED lamp light be projeced into lower section, save light source.
Brief description of the drawings
Fig. 1 is a kind of schematic diagram of the lens of the present invention.
Fig. 2 is the sectional view in Fig. 1 MM directions
Fig. 3 is the sectional view in Fig. 1 NN directions.
Fig. 4 is the distribution curve flux figure of LED lamp of the present invention.
Embodiment
Below in conjunction with the accompanying drawings 1 to Fig. 4 and embodiment the present invention is further illustrated.
Embodiment 1：As shown in Figures 1 to 4, a kind of LED lens of asymmetric light distribution, the LED lens 1 include exiting surface
And incidence surface, the exiting surface is in half ellipsoidal surface, and the incidence surface is raised to side；When LED lens 1 are vertically arranged, in C0-
On 180 cross sections（That is the M-M directions cross section in Fig. 2）, exiting surface is in circular arc, and incidence surface is in circular arc；It is horizontal in C90-270
On section（That is the N-N directions cross section in Fig. 3）, exiting surface is raised to the right, and incidence surface is raised to the left.
Specifically, the surface equation of the incidence surface is：Z=Z0-（R2-X2+Y3）1/2+aX2+bY+c X2Y；Wherein, Z0、R、
A, b are constant coefficient.
The incident curved surfaces using the center of lens 1 be the horizontal positioned of lens 1 as origin at origin i.e. light source；X represents horizontal side
To Y represents longitudinal direction；R values are suitable with the semi-minor axis of ellipsoid, specifically, when semi-minor axis length is e, e+0.2>R>
e-0.2：Z0Value is suitable with the major semiaxis of ellipsoid, when major semiaxis length is f, f+0.2> Z0>f-0.2：A, b, c are fine setting
Coefficient, its value exists：Between 0.001 ~ 0.01.In addition, preferably, 2R>=Z0>=1.5R, R are selected according to LED size
Select；This lens 1 are in use, the distribution curve flux requirement of LED lamp can be met.I.e. when the lens 1 are in being vertically arranged,
With reference to LED, the LED lamp of formation, the projection distribution curve flux of LED lamp in the vertical direction meets the requirement of Fig. 4 inner curves,
Projection distribution curve flux in horizontal direction meets the requirement of Fig. 4 external curves；So that when it is as building or Landscape Lamp, tool
There is preferable sight.According to ray design, the lens 1 are in peanut shape, and the light distribution curved surface of the lens 1 of peanut shape is in
Symmetrical bat shape, is improved so that go the requirement for possessing light distribution curved surface, the appearance mask of lens to the incidence surface of lens 1
The shape of top half when having a spheroid horizontal positioned.
The invention further relates to the light extraction design method of lens, comprise the following steps：
1st, using luminous point as origin, light in the vertical distribution curve flux of C90-270 planes, vertical distribution curve flux is designed upward
Maximum lighting angle φ 1 be：2 ° -8 °, preferably φ 1 is 5 °；The downward maximum lighting angle φ 2 of light is：45°—30°；
It is preferred that φ 2 is 40 °；As shown in figure 4, the upward luminous flux of light is Φ1；The downward luminous flux of light is Φ2；Wherein, 4 Φ1<
Φ2；
The design of vertical distribution curve flux so that light fixture projects the aerial light flux in day and subtracted when carrying out light projection
It is few, and the luminous flux increase on ground is projected, so as to reduce the waste of light, improve light utilization efficiency；And reduce light pollution.The profit of light
It is Φ with rate2/（Φ1+Φ2）, the utilization rate more than 80%.
2nd, design in the horizontal distribution of C0-180 planes, horizontal distribution, the maximum lighting angle of light to the left
φ 3 is：70°；The maximum lighting angle φ 4 of light to the right is：70°；As shown in Figure 1.
3rd, in distribution curve flux, the light intensity maximum of 0 angle is set to E；In vertical distribution curve flux, when light is downward
When crevice projection angle is 0-20 °, the light intensity of light is E1>80%E；When the downward crevice projection angle of light is 20 ° -30 °, light
Light intensity be E2>70%E；When the downward crevice projection angle of light is 30 ° -45 °, the light intensity of light is E3>60%E；
This design when, when light angle gradually increases downwards, light intensity is gradually reduced, as shown in Fig. 2 due to with
The light fixture of light curve is typically mounted at eminence, typically at least in tens meters of high-altitude；The minor variations of crevice projection angle, on the ground
The change of relatively long distance is formed, hence in so that observer is when observing Landscape Lamp, is moved towards nearby from distant place, observer's sense
The intensity for the light being subject to reduces degree very little, almost unchanged, maintains the landscape effect that Landscape Lamp is shown.C0-180 planes
Intersection with C90-270 planes is the light of 0 angle.
4th, in horizontal distribution, when the leftward or rightward crevice projection angle of light is 0-30 °：The intensity of light is
E4；E4>90%E；When the crevice projection angle of light to the left is 30 °-T2, light intensity is E5, E5>60%E, wherein T2 take the Hes of φ 3
It is smaller one in 50 °；When the crevice projection angle of light to the right is 30 °-T3, light intensity is E6, E6>60%E, wherein T3 take φ
It is smaller one in 4 and 50 °；When the crevice projection angle of light to the left is 50 °-T4, light intensity is E7, E7>50%E, wherein T4
Take smaller one in φ 3 and 60 °；When the crevice projection angle of light to the right is 50 °-T5, light intensity is E8, E8>50%E, its
Middle T5 takes smaller one in φ 4 and 60 °.
Lens are designed according to the distribution of light extraction.
The present invention is explained, it will be understood by those within the art that, can be to technology of the invention
Scheme is modified or equivalent substitution, without departing from the spirit and scope of technical solution of the present invention.
Claims (1)
1. a kind of LED lens, it is characterised in that：The LED lens include exiting surface and incidence surface, and the exiting surface is in semielliptical
Face, the incidence surface is raised to side；When LED lens are vertically arranged, on C0-180 cross sections, exiting surface is in circular arc, is entered
Smooth surface is in circular arc；On C90-270 cross sections, exiting surface is raised to the right, and incidence surface is raised to the left；
The surface equation of the incidence surface is：Z=Z0-（R2-X2+Y3）1/2+aX2+bY+c X2Y；Wherein, Z0, R, a, b be normal system
Number；The incident curved surfaces are using lens centre as origin, lens horizontal positioned；X represents horizontal direction, and Y represents longitudinal direction；Semi-minor axis
When length is e, e+0.2>R>e-0.2：When major semiaxis length is f, f+0.2>Z0>f-0.2：A, b, c are fine setting coefficient, and its value is equal
：Between 0.001 ~ 0.01.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410847343.1A CN104534405B (en) | 2014-12-31 | 2014-12-31 | A kind of LED lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410847343.1A CN104534405B (en) | 2014-12-31 | 2014-12-31 | A kind of LED lens |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104534405A CN104534405A (en) | 2015-04-22 |
| CN104534405B true CN104534405B (en) | 2017-07-21 |
Family
ID=52849986
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410847343.1A Expired - Fee Related CN104534405B (en) | 2014-12-31 | 2014-12-31 | A kind of LED lens |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104534405B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112748513A (en) * | 2019-10-29 | 2021-05-04 | 宁波舜宇光电信息有限公司 | Camera module, optical lens thereof, optical lens and manufacturing method |
| CN111637423B (en) * | 2020-05-28 | 2023-06-23 | 深圳市海洋王铁路照明技术有限公司 | Lens, light distribution module and lamp |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101788124A (en) * | 2010-03-18 | 2010-07-28 | 海洋王照明科技股份有限公司 | Asymmetric light-distribution lens and components thereof |
| CN201593753U (en) * | 2010-01-12 | 2010-09-29 | 雷笛克光学股份有限公司 | Asymmetrical LED lens for street lamp |
| CN203147627U (en) * | 2012-12-25 | 2013-08-21 | 深圳市斯派克光电科技有限公司 | Polarized light lens unit and polarized light lens module for LED street lamp |
| CN103375769A (en) * | 2012-12-25 | 2013-10-30 | 深圳市斯派克光电科技有限公司 | Polarized lens unit and lens module for LED streetlights |
| CN103644532A (en) * | 2013-12-16 | 2014-03-19 | 宜兴市宏力灯杆灯具有限公司 | Method and device for greatly increasing irradiation range of street lamp |
-
2014
- 2014-12-31 CN CN201410847343.1A patent/CN104534405B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201593753U (en) * | 2010-01-12 | 2010-09-29 | 雷笛克光学股份有限公司 | Asymmetrical LED lens for street lamp |
| CN101788124A (en) * | 2010-03-18 | 2010-07-28 | 海洋王照明科技股份有限公司 | Asymmetric light-distribution lens and components thereof |
| CN203147627U (en) * | 2012-12-25 | 2013-08-21 | 深圳市斯派克光电科技有限公司 | Polarized light lens unit and polarized light lens module for LED street lamp |
| CN103375769A (en) * | 2012-12-25 | 2013-10-30 | 深圳市斯派克光电科技有限公司 | Polarized lens unit and lens module for LED streetlights |
| CN103644532A (en) * | 2013-12-16 | 2014-03-19 | 宜兴市宏力灯杆灯具有限公司 | Method and device for greatly increasing irradiation range of street lamp |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104534405A (en) | 2015-04-22 |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
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| TR01 | Transfer of patent right |
Effective date of registration: 20190313 Address after: Room 201, 2nd floor, Building A, Houfu Road, Shanmei Community, Houjie Town, Dongguan City, Guangdong Province Patentee after: Dongguan Rong Jia energy saving and environmental protection equipment Co., Ltd. Address before: Room C03, 11th floor, No. 1 Building, Civil Finance Building, 111 Guantai Road, Sanyuanli, Nancheng District, Dongguan City, Guangdong Province Patentee before: DONGGUAN HANLONG GIFTS CO., LTD. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170721 Termination date: 20201231 |
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| CF01 | Termination of patent right due to non-payment of annual fee |