CN105485628B - A kind of lens, LED module and lighting system - Google Patents
A kind of lens, LED module and lighting system Download PDFInfo
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- CN105485628B CN105485628B CN201410477416.2A CN201410477416A CN105485628B CN 105485628 B CN105485628 B CN 105485628B CN 201410477416 A CN201410477416 A CN 201410477416A CN 105485628 B CN105485628 B CN 105485628B
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Abstract
A kind of lens, LED module and lighting system includes a plane of illumination and at least one irradiates the LED module of the shadow surface.The LED module includes a lens and the LED with lens cooperation.The lens include an optical axis, a plane of incidence, an outgoing curved surface from plane of incidence protrusion, one along the symmetrical section of the optical axis and one spin crossover vertical with the symmetrical section and along the optical axis.The radius of curvature of the symmetrical section and the contour line of the outgoing surface intersection is increased continuously or successively decreases.The outgoing curved surface includes the left exit facet and right exit facet symmetrical relative to the symmetrical section.The intersecting lens that the left exit facet and right exit facet intersect with the spin crossover is all the elliptical camber line constrained line of an a quarter.The camber line constrained line has converging action to the light reached.The left exit facet and right exit facet are that the contour line is formed using camber line constrained line as track scanning.It is consistent that the present invention can be realized far and near uniform-illumination.
Description
Technical field
The present invention relates to a kind of lighting system, especially a kind of lens of uniform in light emission, LED module and lighting system.
Background technique
Compared to traditional lighting lamps and lanterns, LED lamp has the advantages that small in size, low energy consumption and light efficiency is high, thus LED lamp obtains
To promote and apply rapidly.Meanwhile people also pursue more preferably lighting effect continuous, thus also wish that LED lamp can expire
The various lighting demands of foot.Especially in the case where needing large area, telecurie irradiation, it is desirable to be able to so that irradiated area
Illumination is generally uniform consistent.Since the LED first time optical design carried out when packaged is not able to satisfy lighting requirement generally, thus
It needs to cooperate by lens to carry out secondary optical design and meet specific light distribution requirements.According to the rule that light irradiates, compare
The irradiated area close compared with light irradiation distance, light irradiation distance is remoter, and scattering is more severe, and range of exposures is bigger, thus quilt
The remoter region illumination of irradiation distance is smaller.Thus, there is also what illumination gradually weakened to ask from the near to the remote for the irradiation area of LED
Topic.
In the prior art, light filling design generally is carried out by different LED light sources.The center illumination of one LED light source than
The remote illumination in periphery is big, thus improves the remote illumination in periphery by the irradiation area of another LED light source to be superimposed,
So that the illumination and central area illumination in the remote region in periphery are almost the same.This mode for realizing uniform-illumination needs
The position of different LED light sources is rationally set, preferable radiation response can be reached, thus needs constantly test to adjust at least
The position of two different LED light sources.
Summary of the invention
In view of this, the present invention provides a kind of distal and proximal ground for enabling to light to redistribute so that light irradiates
Side is all with lens, LED module and the lighting system of the consistent effect of illumination, to solve the above technical problems.
A kind of lens, including an optical axis, one for receive light the plane of incidence and one it is convex from the plane of incidence
It rises with the outgoing curved surface for emergent ray.The lens further include one along the symmetrical section of the optical axis and one with should
Symmetrical section is vertical and along the spin crossover of the optical axis.The profile curvature of a curve with outgoing surface intersection of the symmetrical section
Radius size is incremented by along light from closely successively decreasing to remote direction of illumination in the opposite direction.The outgoing curved surface includes opposite
In the symmetrical section symmetrical left exit facet and right exit facet.The left exit facet and right exit facet respectively with the rotation
The intersecting lens for turning section intersection is all the elliptical camber line constrained line of an a quarter.Light of the camber line constrained line to arrival
With converging action.The left exit facet and right exit facet are the contour line centered on any point on optical axis and with the arc
Line constrained line is that motion profile scans the curved surface to be formed.
A kind of LED module cooperates including one LED and one with the LED to go out the lens of light.The lens include one
A optical axis, one for receive light the plane of incidence and one from the plane of incidence protrusion with the outgoing for emergent ray
Curved surface.The lens further include one vertical with the symmetrical section along the symmetrical section of the optical axis and one and along the light
The spin crossover of axis.The radius of curvature of the symmetrical section and the contour line of the outgoing surface intersection is increased continuously or successively decreases.
The outgoing curved surface includes the left exit facet and right exit facet symmetrical relative to the symmetrical section.The left exit facet and
The intersecting lens that right exit facet intersects with the spin crossover respectively is all the elliptical camber line constrained line of an a quarter.The arc
Line constrained line has converging action to the light of arrival.The left exit facet and right exit facet are that the contour line is taken up an official post with optical axis
The curved surface to be formed is scanned as motion profile centered on a little and using the camber line constrained line.The LED is set as and the incidence
Face faces.
A kind of lighting system, including a plane of illumination and at least one LED module.The LED module is shone with described
Penetrate face interval setting.The LED module includes one LED and one and cooperates with the LED to go out the lens of light.The LED module
For Continuous irradiation plane of illumination.The lens include an optical axis, one for receive light the plane of incidence and one from
The plane of incidence protrusion is with the outgoing curved surface for emergent ray.The lens further include a symmetrical section along the optical axis
An and spin crossover vertical with the symmetrical section and along the optical axis.The symmetrical section and the outgoing surface intersection
The radius of curvature of contour line be increased continuously or successively decrease.The outgoing curved surface includes symmetrical relative to the symmetrical section
Left exit facet and right exit facet.The intersecting lens that the left exit facet and right exit facet intersect with the spin crossover respectively is all one
The elliptical camber line constrained line of a quarter.The camber line constrained line has converging action to the light of arrival.The left outgoing
Face and right exit facet are that the contour line scans centered on any point on optical axis and by motion profile of the camber line constrained line
The curved surface of formation.The LED is set as facing with the plane of incidence.
Compared with prior art, the left exit facet of lens of the present invention and right exit facet are symmetrical relative to symmetrical section,
Thus light all has the consistent radiation response of illumination by the right and left after left exit facet and right exit facet in plane of illumination.
And the symmetrical section with outgoing surface intersection contour line radius of curvature size along light from closely to remote irradiation side
It is incremented by the opposite direction to successively decreasing, thus more light is biased to the side farther out of plane of illumination, to make up because of irradiation
Distance farther out and caused by larger light decay and reach plane of illumination side farther out have and the nearlyr consistent irradiation of side illumination
Effect.Thus, the LED module with lens of the present invention can reach irradiated area greatly to light distribution by single lens and shine
Uniform lighting effect is spent, without carrying out light filling design by different light sources, facilitates application and has higher
Application value.
Detailed description of the invention
The embodiment of the present invention is described below in conjunction with attached drawing, in which:
Fig. 1 is a kind of one of stereoscopic schematic diagram of lens provided by the invention.
Fig. 2 is the two of the stereoscopic schematic diagram of lens shown in FIG. 1.
Fig. 3 is sectional view of the lens shown in FIG. 1 along line A-A.
Fig. 4 be include lens shown in Fig. 3 LED module irradiation plane of illumination index path.
Fig. 5 is that the size of the radius of curvature of the symmetrical section of lens shown in Fig. 3 and the contour line of outgoing surface intersection becomes
The schematic diagram of change.
Fig. 6 is section of the lens shown in FIG. 1 along line B-B.
Fig. 7 be include lens described in Fig. 6 LED module irradiation plane of illumination index path.
Specific embodiment
Specific embodiments of the present invention are further elaborated below based on attached drawing.It should be understood that herein
The explanation of the embodiment of the present invention is not intended to limit the scope of protection of the present invention.
Present illumination system 1000 include at least one go out as light source light LED module 100 and one by this
The plane of illumination 200 of 100 continuous uniform of LED module irradiation.The LED module 100 includes that a lens 10 and one are saturating with this
The LED (Lighting Emitting Diode, light emitting diode) 20 that mirror 10 cooperates.Please refer to Fig. 1 and Fig. 2, the lens 10
Including an optical axis 11, one for receiving the plane of incidence 12 of light, a symmetrical section 13 along the optical axis 11, one with
The symmetrical section 13 is vertical and raised for going out from the plane of incidence 12 along the spin crossover 14 of the optical axis 11 and one
Penetrate the outgoing curved surface 15 of light.It is envisioned that the LED module 100 can be used as lamps and lanterns according to the needs of range of exposures
Unique light source be irradiated, can also be irradiated with 100 groups of lamps and lanterns being combined into of multiple LED modules.The LED module 100
It can be used as the wall lamp for illuminating metope or for irradiating shelf, showcase etc..
1 and Fig. 3 is please referred to, the optical axis 11 carries out the benchmark guiding of light distribution design as lens 10, and in the present embodiment
The middle reference as the structure and position that describe the lens 10.It is understood that the optical axis 11 goes out light according to light source
The center line i.e. optical axis of the light source is arranged, and in the present embodiment, goes out the setting of light center line according to the LED20.Thus exist
In the present embodiment, the optical axis 11 is perpendicular to the plane of incidence 12 and across the center of the plane of incidence 12.It should be noted that
In the present embodiment, the optical axis 10 is introduced for facilitating the shape for illustrating lens 10.Since the lens 10 are non-rotational symmetry
Special-shaped lens so that LED20 issue light by the lens 10 refraction after emergent ray do not have rotational symmetry,
Thus the optical axis 11 is meant that the light to emit beam for not passing through the naked light source led 20 that lens 10 reflect in the present invention
Axis line of vector Chong Die with the lens 10 on spatial position.
Referring to Fig. 2, the plane of incidence 12 is for receiving light.The plane of incidence 20 can be set to it is opposite with light source,
It for example can be set to the opposite light to receive the LED20 of the LED20.The plane of incidence 12 can be set to one and put down
Face so that light by the plane of incidence 12 enter the lens 10 inside refraction have regularity in order to it is described out
Penetrate the optical design of curved surface 15.
Please refer to Fig. 3 and Fig. 4, left exit facet 151 and the right side of the symmetrical section 13 as following outgoing curved surfaces 15
The plane of symmetry of exit facet 152.The symmetrical section 13 is arranged along the optical axis 11, i.e., the described optical axis 11 is located at the symmetrical section
On 13.The symmetrical section 13 further includes contour line 131 made of the symmetrical section 13 intersects with the outgoing curved surface 15.
The radius of curvature for the contour line 131 that the symmetrical section 13 intersects with the outgoing curved surface 15 is increased continuously or successively decreases.The wheel
The size of the radius of curvature of profile 131 is increased continuously or successively decreases, and refers to the radius of curvature size of the contour line 131 along one
On a direction be incremented by and then successively decrease in the opposite direction, i.e. the size of the radius of curvature of the contour line 131 can be list
It adjusts and consecutive variations.It is envisioned that the radius of curvature of the contour line 131 is bigger, then illustrate the more flat of contour line 131
Sliding, i.e. the angle of the tangential direction of the contour line 131 is smaller.And the radius of curvature of the contour line 131 is got over hour, then explanation should
Contour line 131 is more precipitous, i.e., the contour line 131 and the angle of its tangential direction are bigger.In the present embodiment, according to the lens
10 setting direction, the direction that the radius of curvature of the contour line 131 is continuously successively decreased i.e. light directive is from the farther away side of lens 10
To.
Fig. 4 and Fig. 5 is please referred to, in the present embodiment, is successively decreased in the size of the radius of curvature along the contour line 131
Direction, the LED module 100 is from closely to distant place Continuous irradiation plane of illumination 200.A point on contour line 131 shown in Fig. 5
Radius of curvature is R, and the radius of curvature of b point is r, and R is greater than r, then direction from a point to point b is the side that radius of curvature is successively decreased
To.Since the LED module 100 is suitably arranged at eminence, to irradiate metope or shelf etc. from high to low, i.e., from from the LED mould
The close local directive of group 100 is at a distance.People stands on ground, and the radiation response of uniform-illumination can be experienced from lower to eminence.Cause
And, it should be noted that in the present invention if without particularly illustrating, what " upper and lower " (or height) that the present invention is previously mentioned referred to
It is the direction from big to small of the radius of curvature of the contour line 131, " left and right " refers to the radius of curvature of the contour line 131
The direction successively decreased the right and left.
Fig. 6 and Fig. 7 is please referred to, the spin crossover 14 intersects with the symmetrical section 13 and is arranged along the optical axis 11,
It is four parts that thus the spin crossover 14, which divides the lens 10 with the symmetrical section 13,.It is envisioned that the rotation
Section 14 and the symmetrical section 13 are projected as one on the face all vertical with the spin crossover 14 and the symmetrical section 13
" ten " word.It is one that the spin crossover 14 intersects with the left exit facet 151 of following outgoing curved surfaces 15 and right exit facet 152 respectively
The elliptical camber line constrained line 141 of a quarter.141 pairs of light for reaching the camber line constrained line 141 of the camber line constrained line have
Converging action.On the elliptical major semiaxis position symmetrical section 13 of the camber line constrained line 141, and its semi-minor axis is positioned at described
On the plane of incidence 12.The elliptical major semiaxis of the camber line constrained line 141 and the ratio of semi-minor axis can be adjusted according to light area
Section, when needing irradiated area larger, the ratio of the long and short semiaxis is smaller, and when needing irradiated area smaller, this long and short half
The ratio of axis becomes larger.
Fig. 1, Fig. 3 and Fig. 6 are please referred to, the outgoing curved surface 15 is from 12 protrusion of the plane of incidence to be used for emergent ray.Institute
State outgoing curved surface 15 include with the symmetrical section 13 is the plane of symmetry and symmetrical left exit facet 151 and right exit facet 152.
The left exit facet 151 and the right exit facet 152 are the contour line that the symmetrical section 13 intersects with the outgoing curved surface 15
131 curved surfaces formed centered on any point on the optical axis 11 and with the camber line constrained line 141 for motion profile scanning.
In the present embodiment, since the camber line constrained line 141 is that a quarter is oval, thus basis should respectively for the contour line 131
The motion profile of camber line constrained line 141 is rotated by 90 ° angle, that is, scans and form the left exit facet 151 and right exit facet 152.Institute
Stating 141 pairs of light for reaching the camber line constrained line 141 of camber line constrained line has the function of assembling, thus the left exit facet 151
Also have the function of assembling light with right exit facet 152.The outgoing curved surface 15 may further include an inner sunken face
153, i.e. the opposite direction of the inner sunken face 153 towards the optical axis 11 is recessed.The center of the inner sunken face 153 passes through the light
Axis 11.The inner sunken face 153 links up the left exit facet 151 and right exit facet 152 smoothly.The inner sunken face 153 has
Disperse function will can be biased to respectively the left exit facet 151 and right exit facet 152, energy by the light of the inner sunken face 153
It enough reduces the light intensity of the center for the outgoing curved surface 15 that optical axis 11 passes through and is unlikely to stronger hot spot occur, so that
The illumination of the right and left of the outgoing curved surface 15 is more uniform.In the present embodiment, the left exit facet 151 and right exit facet
152 area is greater than ten times or more of the area of the inner sunken face 153, so that the outgoing curved surface 15 and the rotation
The camber line that section 14 is intersected is the lesser shape of a saddle of indent.
Referring to Fig. 6, the lens 10 further include a light source accommodation groove 16.The light source accommodation groove 16 is along described right
The intersection direction for claiming section 13 to intersect with the plane of incidence 12 is provided on the plane of incidence 12.The light source accommodation groove 16 can be into
One step reduces the light loss out of the LED20, so that the light of LED20 outgoing is emitted by the lens 10 as far as possible.It can manage
Solution, the light source accommodation groove 16 is for accommodating the LED20, thus the position of the light source accommodation groove 16 is according to the optical axis
11 position and determine, i.e., at the center of the plane of incidence 12.The light source accommodation groove 16 can be one and described symmetrical section
Face 13 intersects vertically the arc groove opened up, or a counterbore.In the present embodiment, the light source accommodation groove 16 can pass through
It wears and opens up as an arc groove, so that upper and lower uniform-illumination.The light source accommodation groove 16 is along vertical with the optical axis 11
Direction be provided on the plane of incidence 12.In order to enable the left exit facet 151 and right exit facet 152 receive more light
It line and is more evenly distributed, the arc groove of the light source accommodation groove 16 can be further arranged to the cross section of the light source accommodation groove 16
Product size is successively decreased from the middle to both ends.The center of the light source accommodation groove 16 is arranged in the LED20.The light source accommodation groove
The big place of 16 intermediate cross-section product is for accommodating the LED20, so that the light of the LED20 is further towards transversal
The small both ends distribution of area.It thus, again can be into while the setting of the arc groove of the light source accommodation groove 16 can be promoted with light efficiency
One step is uniformly distributed light.
Fig. 4 and Fig. 7 is please referred to, the LED20 is as the light source of LED module 100 to emit beam.The type of the LED20
Number, the parameters such as specification be all the prior art, just it will not go into details herein.The LED20 can be arranged in described in any way
On the plane of incidence 12 of mirror 10, for example LED20 is set to by a bracket 12 face of the plane of incidence with the lens 10.At this
In embodiment, the light design that goes out of the lens 10 is matched with the setting of the position of the LED20.In order to make full use of light
Reach maximum light efficiency, the center of the plane of incidence 12 is arranged in the LED20, i.e., the described optical axis 11 and LED20's
Optical axis coincidence.The LED20 can be set as facing with the center of the plane of incidence 12 by bracket etc. (not showing in figure
Out), i.e., so that the optical axis of the LED20 is overlapped with the optical axis 11.In the present embodiment, in order to which abundant light is to improve light
Effect, the LED20 are arranged in the light source accommodation groove 16.
Referring again to Fig. 4 and Fig. 7, the plane of illumination 200 is the region that the LED module 100 is irradiated.It is described illuminated
Face 200 can be metope.In order to enable the illuminated area of plane of illumination 200 is bigger, and lighting effect is more preferable.It is shone when with described
When to penetrate face 200 be reference, when the metope that for example plane of illumination 200 is vertically arranged, the illuminating module 100 is tilted down
Setting, so that wider from the range that the illuminating module 100 is aimed downwardly.The illuminating module 100 tilts down setting
The i.e. described optical axis 11 does not face with the plane of illumination and is deviateed, so that the optical axis 11 and the plane of illumination
200 angle is acute angle.The degree that the optical axis 11 deviates, i.e., the angle between the described optical axis 11 and the plane of illumination 200
It can be adjusted according to the needs of practical irradiated area.It is envisioned that as shown in FIG. 6 and 7, the optical axis 11 is projected in
On the face vertical with the plane of illumination 200, thus the optical axis 11 in the Fig. 6 and Fig. 7 shown on paper is perpendicular to the quilt
Shadow surface 200.
Compared with prior art, the left exit facet 151 of lens 10 of the present invention and right exit facet 152 are relative to symmetrical section 13
Symmetrically, thus light all have by the right and left after left exit facet 151 and right exit facet 152 in plane of illumination 200
The consistent radiation response of illumination.And the radius of curvature for the contour line 131 of the symmetrical section 13 intersected with outgoing curved surface 15 is big
Small to be incremented by the opposite direction along light from closely successively decreasing to remote direction of illumination thus more light is biased to plane of illumination
200 side farther out, thus make up because irradiation distance farther out due to caused by larger light decay and reach farther out the one of plane of illumination 200
Side has and the nearlyr consistent radiation response of side illumination.Thus, the LED module 100 with lens 10 of the present invention passes through single
Lens 10 can reach that irradiated area is big and the consistent lighting effect of illumination to light distribution, not need to carry out by different light sources
Light filling design, facilitates application and application value with higher.
The foregoing is merely a prefered embodiment of the invention, is not used to limitation protection scope of the present invention, any in the present invention
Modification, equivalent replacement or improvement in spirit etc., all cover in scope of the presently claimed invention.
Claims (10)
1. a kind of lens, including an optical axis, a plane of incidence for receiving light and one are from the plane of incidence protrusion
With the outgoing curved surface for emergent ray, it is characterised in that: the lens further include a symmetrical section along the optical axis with
And a spin crossover vertical with the symmetrical section and along the optical axis, the wheel with outgoing surface intersection of the symmetrical section
The radius of curvature size of profile is incremented by along light from closely successively decreasing to remote direction of illumination in the opposite direction, and the outgoing is bent
Face includes the left exit facet and right exit facet symmetrical relative to the symmetrical section, the left exit facet and right exit facet with
The intersecting lens of spin crossover intersection is all the elliptical camber line constrained line of an a quarter, and the camber line constrained line is to being arrived
The light reached has a converging action, the left exit facet and right exit facet be the contour line centered on any point on optical axis simultaneously
The curved surface to be formed is scanned as motion profile using the camber line constrained line.
2. lens according to claim 1, it is characterised in that: the outgoing curved surface further include the left exit facet and
Inner sunken face between right exit facet, the inner sunken face is for linking up the left exit facet and the right exit facet, institute smoothly
State the center that optical axis passes through the inner sunken face.
3. lens according to claim 1, it is characterised in that: the plane of incidence is plane.
4. lens according to claim 3, it is characterised in that: the lens further include a light source accommodation groove, the light
Source accommodation groove is provided on the plane of incidence.
5. lens according to claim 4, it is characterised in that: the light source accommodation groove is an arc groove, which holds
Slot is set along the direction vertical with the optical axis through opening up.
6. lens according to claim 5, it is characterised in that: the cross-sectional area size of the light source accommodation groove from centre to
Successively decrease at both ends.
7. a kind of LED module, including a LED, it is characterised in that: the LED module further includes according to claim 1
Lens, the optical axis coincidence of the optical axis of the LED and the lens.
8. a kind of LED module, including a LED, it is characterised in that: the LED module further includes according to claim 4,5 or 6
Any one of described in lens, the LED is arranged in the light source accommodation groove of the lens, and the optical axis of the LED with it is described
The optical axis coincidence of lens.
9. a kind of lighting system, including a plane of illumination, it is characterised in that: the lighting system includes at least one according to power
Benefit require 7 or 8 described in LED module, the LED module and the plane of illumination interval be arranged, the light of the LED module outgoing
The direction that line successively decreases along the radius of curvature of contour line plane of illumination described in Continuous irradiation from the near to the remote.
10. lighting system according to claim 9, it is characterised in that: be in one between the optical axis and the plane of illumination
A angle, the angle are an acute angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410477416.2A CN105485628B (en) | 2014-09-18 | 2014-09-18 | A kind of lens, LED module and lighting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410477416.2A CN105485628B (en) | 2014-09-18 | 2014-09-18 | A kind of lens, LED module and lighting system |
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| Publication Number | Publication Date |
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| CN105485628A CN105485628A (en) | 2016-04-13 |
| CN105485628B true CN105485628B (en) | 2019-03-05 |
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| CN201410477416.2A Active CN105485628B (en) | 2014-09-18 | 2014-09-18 | A kind of lens, LED module and lighting system |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108826228A (en) * | 2018-06-27 | 2018-11-16 | 赛尔富电子有限公司 | A kind of illuminating lens and lighting unit and lighting system |
| CN110425494A (en) * | 2019-09-05 | 2019-11-08 | 杭州昌松光学有限公司 | A kind of high evenness LED lens mould group, light emitting structure and lamps and lanterns |
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|---|---|---|---|---|
| CN202229068U (en) * | 2011-08-19 | 2012-05-23 | 深圳市百康光电有限公司 | LED (light emitting diode) wall lamp lens |
| CN103335276A (en) * | 2013-07-26 | 2013-10-02 | 苏州东山精密制造股份有限公司 | LED (light emitting diode) streetlamp lens and LED streetlamp system |
| CN203273704U (en) * | 2013-05-29 | 2013-11-06 | 林万炯 | Lens column and illuminating system using same |
| JP2014078384A (en) * | 2012-10-10 | 2014-05-01 | Koito Mfg Co Ltd | Road illumination lens and road illumination device |
| CN204100136U (en) * | 2014-09-18 | 2015-01-14 | 宁波高新区赛尔富电子有限公司 | A kind of lens, LED module and illuminator |
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2014
- 2014-09-18 CN CN201410477416.2A patent/CN105485628B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202229068U (en) * | 2011-08-19 | 2012-05-23 | 深圳市百康光电有限公司 | LED (light emitting diode) wall lamp lens |
| JP2014078384A (en) * | 2012-10-10 | 2014-05-01 | Koito Mfg Co Ltd | Road illumination lens and road illumination device |
| CN203273704U (en) * | 2013-05-29 | 2013-11-06 | 林万炯 | Lens column and illuminating system using same |
| CN103335276A (en) * | 2013-07-26 | 2013-10-02 | 苏州东山精密制造股份有限公司 | LED (light emitting diode) streetlamp lens and LED streetlamp system |
| CN204100136U (en) * | 2014-09-18 | 2015-01-14 | 宁波高新区赛尔富电子有限公司 | A kind of lens, LED module and illuminator |
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| CN105485628A (en) | 2016-04-13 |
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