CN110186012A - A kind of LED module lens - Google Patents
A kind of LED module lens Download PDFInfo
- Publication number
- CN110186012A CN110186012A CN201910367360.8A CN201910367360A CN110186012A CN 110186012 A CN110186012 A CN 110186012A CN 201910367360 A CN201910367360 A CN 201910367360A CN 110186012 A CN110186012 A CN 110186012A
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- lens
- face
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- lens body
- led module
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- 239000003518 caustics Substances 0.000 claims abstract description 6
- 230000003287 optical effect Effects 0.000 claims abstract description 5
- 238000009434 installation Methods 0.000 abstract description 13
- 238000007789 sealing Methods 0.000 abstract description 4
- 239000000463 material Substances 0.000 description 6
- 241001465382 Physalis alkekengi Species 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 238000013178 mathematical model Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001815 facial effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000009877 rendering Methods 0.000 description 1
- 238000009738 saturating Methods 0.000 description 1
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
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The present invention provides a kind of LED module lens, including lens body and the outside being disposed around on the circle of lens body lower end one；Lens body bottom is recessed introversion face, top arcuate forms outcurve face, and LED light source is placed in immediately below the introversion face；Introversion face, outcurve face are in symmetry on C0 ° of -180 ° of directions；Introversion face, outcurve face are in asymmetry on C90 ° of -270 ° of directions, and the angle of outcurve face optical axis of the normal and lens body of remote caustic surface on C90 ° of -270 ° of directions is more than or equal to 15.26 °, and light distribution angle of the lens body on C90 ° of -270 ° of directions is more than or equal to 72.02 °.Lens provided by the invention can apply to out in the street lamp of luminous energy covering two-way eight tracks；And the present invention is also equipped with the outside of a circle by the surrounding in lens body, and which is used for the installation of lens, outside is designed to regular figure, consequently facilitating the installation of lens, sealing and the uniformity for guaranteeing lens surrounding installation stress.
Description
Technical field
The present invention relates to technical field of lighting devices more particularly to a kind of LED module lens.
Background technique
Lens are essential electric appliance components in LED module, and making for light can be enhanced together by being closely connected with LED light source
With efficiency and luminous efficiency.
Lens in existing LED module, have the following problems: 1, being unable to satisfy making for the road of two-way six-lane or more
With；2, since existing lens arrangement is irregular, the installation sealing of surrounding is more inconvenient.
Summary of the invention
To solve the problems in background technique, the present invention provides a kind of LED module lens, including lens body and enclosing is set
Outside on the circle of the lens body lower end one；The lens body bottom is recessed introversion face, top arcuate is formed
Outcurve face, LED light source are placed in immediately below the introversion face；
The introversion face, outcurve face are in symmetry on C0 ° of -180 ° of directions；
The introversion face, outcurve face are in asymmetry on C90 ° of -270 ° of directions, and the outcurve face exists
The angle of the optical axis of the normal and lens body of remote caustic surface is more than or equal to 15.26 ° on C90 ° of -270 ° of directions, and described
Light distribution angle of the lens body on C90 ° of -270 ° of directions is more than or equal to 72.02 °.
Preferably, the introversion face is opposite with eccentric direction of the outcurve face on C90 ° of -270 ° of directions.
Preferably, the height of the introversion face is 7.9mm.
Preferably, the outside and the lens body are integrally formed.
Preferably, the outside is rounded.
Preferably, setting positioning error-proof structure, the positioning error-proof structure and the lens sheet on the outside upper surface
Body is opposite in the middle position in C90 ° of -270 ° of directions.
Preferably, be additionally provided with arrow instruction structure on the outside upper surface, the arrow instruction structure with it is described fixed
Position error-proof structure is located at the opposite two sides of the lens body.
The present invention due to using the technology described above, is allowed to compared with prior art, have the following advantages that and actively imitate
Fruit:
LED module lens provided by the invention, the introversion face 101 of lens body 1, outcurve face 102 are at C90 ° -270 °
It is designed as eccentric type, meanwhile, 72.02 ° and C90 ° of -270 ° of directions of outcurve face are more than or equal to the light distribution angle of lens body
Eccentric angle be more than or equal to 15.26 °, be curved surface slope variation the best part, so that the lens can apply to out
Luminous energy covers in the street lamp in eight lanes；And the present invention is also equipped with the outside of a circle by the surrounding in lens body, and it should
Outside is used for the installation of lens, and outside is designed to regular figure, consequently facilitating the installation of lens, sealing and guarantee lens four
The uniformity of week installation stress.
Detailed description of the invention
In conjunction with attached drawing, by hereafter state detailed description, can be more clearly understood that above-mentioned and other feature of the invention and
Advantage, in which:
Fig. 1 is the schematic diagram of LED module lens provided by the invention；
Fig. 2 is A-A cross-sectional view in Fig. 1；
Fig. 3 is B-B cross-sectional view in Fig. 1；
Fig. 4 is that lens go out the schematic diagram that light is radiated on road in the present invention；
Fig. 5 is that lens provided by the invention are mounted on the schematic diagram in LED module.
Specific embodiment
Referring to the attached drawing for showing the embodiment of the present invention, the present invention is described in more detail.However, the present invention can be with
Many different forms are realized, and should not be construed as being limited by the embodiment herein proposed.On the contrary, proposing that these embodiments are
In order to reach abundant and complete disclosure, and those skilled in the art is made to understand the scope of the present invention completely.These are attached
In figure, for clarity, the size and relative size in layer and region may be exaggerated.
Referring to Fig.1-3, the present invention provides a kind of LED module lens, including lens body 1 and it is disposed around lens body 1
Outside 2 on the circle of lower end one；1 bottom of lens body is recessed introversion face 101, top arcuate forms outcurve face 102,
LED light source 5 is placed in the underface of introversion face 101；Wherein, introversion face 101, outcurve face 102 are on C0 ° of -180 ° of directions
In symmetry, as shown in Figure 2；Introversion face 101, outcurve face 102 are in asymmetry, such as Fig. 3 on C90 ° of -270 ° of directions
Shown in；And the angle α of the optical axis of the normal and lens body of remote caustic surface on C90 ° of -270 ° of directions of outcurve face 102 ' big
In be equal to 15.26 °, and light distribution angle of the lens body 1 on C90 ° of -270 ° of directions be more than or equal to 72.02 °.
LED module lens provided by the invention, by the introversion face 101 of lens body 1, outcurve face 102 C90 °-
270 ° are designed as eccentric type, meanwhile, 72.02 ° and C90 ° -270 ° of outcurve face are more than or equal to the light distribution angle of lens body
The eccentric angle in direction is more than or equal to 15.26 °, is curved surface slope variation the best part at this time, so that the lens can
Luminous energy is applied to out to cover in the street lamp in eight lanes；And the present invention is also equipped with a circle by the surrounding in lens body
Outside, the outside are used for the installation of lens, outside are designed to regular figure, consequently facilitating the installation of lens, sealing and guarantor
Demonstrate,prove the uniformity of lens surrounding installation stress.
In the present embodiment, when the LED module lens apply to onto street lamp, C0 ° of -180 ° of direction definitions are edge
Road direction.
In the present embodiment, introversion face 101, outcurve face 102 can basis it is specific need will carry out light distribution, herein not
It is limited.Specific light-configuration mode is as follows:
(1) it is directed to light distribution of the upper surface on C0 ° of-C180 ° of directions, mathematical model is as shown in Figure 2.
According to the law of refraction of Q point position on bottom curve FF, have
Sin (θ-α)=nsin [(pi/2)-α-θ ']
Sin θ cos α-cos θ sin α=ncos (α+θ ')
Sin θ cos α-cos θ sin α=ncos α cos θ '-nsin α sin θ '
Tan α=(sin θ-nsin θ ')/(cos θ-nsin θ ') (1)
In formula, θ ' is the angle of horizontal line JK and emergent ray QP, and angle of the α between normal MN and vertical line CD, θ is
The angle of emergence of LED, n are the refractive index of lens material.
Further according to the law of refraction of P (x, y) point position, there is following relational expression:
Nsin δ=sin γ (2)
∠ CQP=∠ QPD in Fig. 2, so there is the following formula:
Π/2- θ '=δ+β (3)
It is obtained by (3) formula: β=pi/2-θ '-δ (4)
Further according to the relationship between the differential of lower curve AB and the tangent angle function of tangent line PT:
Tan β=dy/dx (5)
The numerical coordinates of combinatorial formula (1) to (5), the curve AB in Fig. 2 can successively be calculated with iterative Integral Method.
(2) to the light of distribution before C90 ° of -270 ° of directions (perpendicular to road direction) road, for upper surface in C90-
Light distribution on the direction C270, mathematical model are as shown in Figure 3.
According to the law of refraction of P point position on curve MN, have:
N sin α=sin β (1)
In formula: n is the refractive index of lens material, and α is the incidence angle of light, and β is the refraction angle of light.
According to Fig. 3 it can be concluded that relational expression:
∠ TPO=pi/2-α+pi/2+β (2)
∠ TPO=arc tan [(s-rcos θ)/(h-rsin θ)]+pi/2+θ (3)
Joint type (2) and formula (3), solve β, bring formula (1) into, can obtain:
α=sin [pi/2-θ-arc tan (s-rcos θ)/(h-rsin θ)]/n-cos [pi/2-θ-arc tan (s-rcos
θ)/(h-rsinθ)] (4)
It is δ by the inclination angle that Fig. 3 can obtain P point,
δ=pi/2-α-θ (5)
And the slope k of P point=tan δ, it can obtain:
K=tan [pi/2-θ-sin [pi/2-θ-arc tan (s-rcos θ)/(h-rsin θ)]/n-cos [pi/2-θ-arc
tan(s-rcosθ)/(h-rsinθ)]] (6)
By formula (6) it is found that the beam angle of known light and the angle theta of horizontal plane, it is desirable that the irradiation spot width on road surface is s
It is h with irradiation height, sets r, i.e. distance of the lens p point away from origin o, so that it may which the curve for determining that lens curve goes out in point p is oblique
Rate passes through tri- point-rendering curve of MPN.
In the present embodiment, the introversion face 101 of lens body 1, outcurve face 102 are set on C90 ° of -270 ° of directions
It is calculated as bias, and the restriction to lens body light distribution angle, when which is applied on Road street lamp
Meet the illumination in eight lanes.
Specifically, major urban arterial highway car lane is 3.5m wide referring to Fig. 4, the width in two-way 8 lane presses 28m, unidirectional vehicle
Road is 14m, and lamps and lanterns height 12m, the elevation angle allowed band of street lamp is (≤15 °).
Assuming that eccentric angle is α ', the prominent curb distance in lamps and lanterns center is S, is highly H, there is following formula:
α '=arc tan (7/12),
α '=30.26 °
Light intensity drift angle is needed if lamps and lanterns are horizontal positioned, according to standard, it is known that reach this eccentric standard in 15 ° of the elevation angle
Eccentric angle at least needs to reach 15.26 °.So distant place caustic surface is light-emitting surface slope variation the best part, distant place optically focused
The surface normal in face and the angle of lens axis are at least 15.26 °.
For angle of flare B (i.e. light distribution angle) of the lens body 1 on C90 ° of-C270 ° of directions, forward direction distance is S1, after
It is S2 to distance, calculates as follows:
S1=14, S2=5, H=12；
B1=arc tan (S1/H),
B1=49.40 °
B2=arc tan (S2/H),
B2=22.62 °
B=B1+B2=72.02
From the above equation, we can see that this lens must not be less than 72.02 ° in C90 ° of-C270 ° of axial plane angles of flare.
Obtain in conjunction with all of above calculating formula: C90 ° of-C270 ° of eccentric angle >=15.26 °, C90 ° of -270 ° of angles of flare are
72.02 ° of maximums are able to satisfy 8 lane designs.
In the present embodiment, the facial eccentric direction with outcurve face on C90 ° of -270 ° of directions of introversion on the contrary, set in this way
In order to irradiate before road to direction of illumination when setting, light is made more to be biased to distant place caustic surface.
In the present embodiment, the highly preferred of introversion face 101 is 7.9mm, and the present embodiment passes through the restriction of the size,
Lens can be made in the case where guaranteeing that performance is constant, it can the size appropriate that lens be reduced.
Specifically, LED light source 5 and lens body 1, which are closely connected, facilitates to be promoted the light emission rate of LED light source, choosing together
The inside that LED light source 5 is put in 2 origin of lens body is selected, LED light source is remoter from lens, and the light source light that lens body 1 is collected into is logical
Amount is fewer, thus entire lens body efficiency is lower, and according to the calculation formula of convex lens: r=(n-1) f, wherein r is convex surface song
Rate radius, n are lens material refractive index, and f is the focal length of lens, and in the case where selected lens material, refractive index is fixed value, burnt
Away from bigger, radius of curvature is bigger.Under conditions of same lens aperture φ, radius of curvature is bigger, and lens are thinner.And lens are got over
Thickness, aberration can be more obvious, to influence using effect, therefore, select the biggish lens of focal length as far as possible, meanwhile, the increasing of focal length
Greatly, the increase of optical system size, it is possible in the illuminating effect for meeting lens, lens be done small.To saturating in the present embodiment
The LED light source specification that mirror provides is 19mm*19mm, as long as the bore of the introversion face of lens body, which meets, is greater than dimension of light source
Under the conditions of accomplish that minimum, the height of negative camber are 7.9mm.Wherein the calculating formula of the height of negative camber is according in lens bottom size
Meet light source specification, bottom caliber size has been determined, and the height value of inner face is calculated by after customized input debugging setting
Out；Certainly, the height of negative camber is also not limited to the above in other embodiments, can also carry out as the case may be
Adjustment, herein with no restrictions.
In the present embodiment, preferred outside 2 is integrally formed with lens body 1.
In the present embodiment, lens are glass lens, can be specifically made of the material of high borosilicate 3.3；Certainly, at it
The material of lens is also adjusted according to specific needs in his embodiment, herein with no restrictions.
In the present embodiment, preferred outside 2 is rounded, design in this way the installation for being more advantageous to lens and its periphery by
The uniformity and stability of power.Certainly, outside is also designed to regular polygon etc. in other embodiments, herein with no restrictions.
In the present embodiment, setting positioning error-proof structure 3 on 2 upper surface of outside, and position error-proof structure 3 and lens body
1 C90 ° of -270 ° of directions middle position it is opposite, as shown in fig. 1.
There is eccentricity by lens body 1 in this present embodiment, when multiple LED modules are housed on multiple lamps and lanterns,
Need to guarantee the consistency of each lens installation direction, the present embodiment passes through the design of positioning error-proof structure 3, to guarantee multiple lens
The consistency of installation.
Specifically, needing to complete by lens arrangement fixture when LED module mounted lens.Illustrate in conjunction with Fig. 5, step
Are as follows: anti-dazzle circle 02 (anti-dazzle circle 02 is the structure that a circle on the outside of lens is arranged in LED module) is first placed in fixture, anti-dazzle
Circle 02 is positioned with fixture notch；Lens 01 are placed on fixture again later, the positioning error-proof structure 3 of lens 01 and determining for fixture
Position slot cooperation, to guarantee the uniqueness of lens and fixture, anti-dazzle circle assembly direction.Other accessories of last fit drawing die group, assembly
Guarantee the consistency in the lens direction of all mould groups after the completion.
Further, arrow instruction structure 4, arrow instruction structure 4 and positioning fool proof knot are additionally provided on 2 upper surface of outside
Structure 3 is located at the opposite two sides of lens body 1.
After LED module assembles, the assembly of entire mould group and lamp body when, arrow also has apparent directive property；Simultaneously
In street lamp construction, worker can also be directed toward by arrow and examine whether LED module has the case where dress falls, and avoid making because mould assembles
At subsequent maintenance.
It will be understood by those skilled in the art that the present invention can be implemented without departing from many other concrete forms it is of the invention
Spirit or scope.Although the embodiment of the present invention has also been described, it should be understood that the present invention should not be limited to these embodiments, this skill
The technical staff in art field can make change and modification within spirit and scope of the invention as defined by the following claims.
Claims (7)
1. a kind of LED module lens, which is characterized in that including lens body and be disposed around on the circle of lens body lower end one
Outside；The lens body bottom is recessed introversion face, top arcuate forms outcurve face, and LED light source is placed in described
Immediately below curved face part；
The introversion face, outcurve face are in symmetry on C0 ° of -180 ° of directions；
Introversion face, outcurve face are in asymmetry on C90 ° of -270 ° of directions, and the outcurve face C90 ° -
The angle of the optical axis of the normal and lens body of remote caustic surface is more than or equal to 15.26 °, and the lens sheet on 270 ° of directions
Light distribution angle of the body on C90 ° of -270 ° of directions is more than or equal to 72.02 °.
2. LED module lens as described in claim 1, which is characterized in that the introversion face exists with the outcurve face
Eccentric direction on C90 ° of -270 ° of directions is opposite.
3. LED module lens as described in claim 1, which is characterized in that the height of the introversion face is 7.9mm.
4. LED module lens as claimed in claim 1 or 3, which is characterized in that the outside and lens body one at
Type.
5. LED module lens as described in claim 1, which is characterized in that the outside is rounded.
6. LED module lens as described in claim 1, which is characterized in that setting positioning fool proof knot on the outside upper surface
Structure, the positioning error-proof structure are opposite in the middle position in C90 ° of -270 ° of directions with the lens body.
7. LED module lens as claimed in claim 6, which is characterized in that be additionally provided with arrow on the outside upper surface and refer to
Show structure, the arrow instruction structure and the positioning error-proof structure two sides that be located at the lens body opposite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910367360.8A CN110186012A (en) | 2019-04-30 | 2019-04-30 | A kind of LED module lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910367360.8A CN110186012A (en) | 2019-04-30 | 2019-04-30 | A kind of LED module lens |
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| CN110186012A true CN110186012A (en) | 2019-08-30 |
Family
ID=67715651
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| CN201910367360.8A Pending CN110186012A (en) | 2019-04-30 | 2019-04-30 | A kind of LED module lens |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI806714B (en) * | 2022-04-29 | 2023-06-21 | 大陸商弘凱光電（江蘇）有限公司 | Light emitting modules and electronic equipment |
| RU223687U1 (en) * | 2023-10-05 | 2024-02-28 | Общество с ограниченной ответственностью Инновационная компания "Клейтон" | Optical multi-lens LED light unit |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN103807806A (en) * | 2014-01-22 | 2014-05-21 | 宜兴市宏力灯杆灯具有限公司 | COB module LED road lamp lens light distribution method allowing 3-5 lanes to be irradiated |
| CN203797558U (en) * | 2013-12-16 | 2014-08-27 | 宏力照明集团有限公司 | Streetlamp lens or high-pole lamp lens capable of greatly widening irradiation range of streetlamp |
| CN104456418A (en) * | 2013-09-16 | 2015-03-25 | 元晖光电有限公司 | Faceted LED street lamp lens |
| CN205655240U (en) * | 2016-05-31 | 2016-10-19 | 山东凯创光电科技有限公司 | A LED street lamp lens for rural road illumination |
| CN207935997U (en) * | 2018-02-26 | 2018-10-02 | 浙江中博光电科技有限公司 | A kind of polarisation LED street lamp toroidal lens |
| CN210004315U (en) * | 2019-04-30 | 2020-01-31 | 上海智光慧芯照明科技有限公司 | LED module lens |
-
2019
- 2019-04-30 CN CN201910367360.8A patent/CN110186012A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN104456418A (en) * | 2013-09-16 | 2015-03-25 | 元晖光电有限公司 | Faceted LED street lamp lens |
| CN203797558U (en) * | 2013-12-16 | 2014-08-27 | 宏力照明集团有限公司 | Streetlamp lens or high-pole lamp lens capable of greatly widening irradiation range of streetlamp |
| CN103807806A (en) * | 2014-01-22 | 2014-05-21 | 宜兴市宏力灯杆灯具有限公司 | COB module LED road lamp lens light distribution method allowing 3-5 lanes to be irradiated |
| CN205655240U (en) * | 2016-05-31 | 2016-10-19 | 山东凯创光电科技有限公司 | A LED street lamp lens for rural road illumination |
| CN207935997U (en) * | 2018-02-26 | 2018-10-02 | 浙江中博光电科技有限公司 | A kind of polarisation LED street lamp toroidal lens |
| CN210004315U (en) * | 2019-04-30 | 2020-01-31 | 上海智光慧芯照明科技有限公司 | LED module lens |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI806714B (en) * | 2022-04-29 | 2023-06-21 | 大陸商弘凱光電（江蘇）有限公司 | Light emitting modules and electronic equipment |
| RU223687U1 (en) * | 2023-10-05 | 2024-02-28 | Общество с ограниченной ответственностью Инновационная компания "Клейтон" | Optical multi-lens LED light unit |
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