CN204100136U - A kind of lens, LED module and illuminator - Google Patents
A kind of lens, LED module and illuminator Download PDFInfo
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- CN204100136U CN204100136U CN201420537370.4U CN201420537370U CN204100136U CN 204100136 U CN204100136 U CN 204100136U CN 201420537370 U CN201420537370 U CN 201420537370U CN 204100136 U CN204100136 U CN 204100136U
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Abstract
A kind of lens, LED module and illuminator comprise a plane of illumination and at least one irradiates the LED module of this shadow surface.The LED that described LED module comprises lens and coordinates with these lens.Described lens comprise an optical axis, a plane of incidence, an outgoing curved surface from this plane of incidence projection, a symmetrical section along described optical axis and one vertical with this symmetrical section and along the spin crossover of described optical axis.The continuous increasing or decreasing of radius of curvature of the outline line of described symmetrical section and described outgoing surface intersection.Described outgoing curved surface comprises the left exit facet symmetrical relative to described symmetrical section and right exit facet.Described left exit facet and the right exit facet intersecting lens crossing with spin crossover are all the camber line constrained line of 1/4th ellipses.Described camber line constrained line has converging action to arrived light.Described left exit facet and right exit facet be described outline line with camber line constrained line for track scanning forms.It is consistent that the utility model can realize far and near uniform-illumination.
Description
Technical field
The utility model relates to a kind of illuminator, particularly a kind of lens of uniform in light emission, LED module and illuminator.
Background technology
Compare traditional lighting light fixture, LED lamp has that volume is little, energy consumption is low and the advantage that light efficiency is high, and thus LED lamp is applied rapidly.Meanwhile, people also constantly pursuing better lighting effect, thus also wish that LED lamp can meet various lighting demand.Particularly when needs large area, telecurie irradiation, wish the illumination roughly uniformity that can make irradiated area.The first time optical design carried out when encapsulating due to LED generally can not meet lighting requirement, thus needs scioptics to coordinate and meets specific light distribution requirements to carry out secondary optical design.According to the rule that light irradiates, the irradiated area that light irradiation distance of comparing is near, light irradiation distance is far away, and scattering is more severe, and range of exposures is larger, and the region illumination that thus illuminated distance is far away is less.Thus, the irradiation area of LED also also exists the problem that illumination weakens gradually from the near to the remote.
In prior art, generally carry out light filling design by different LED light source.The center illumination of a LED light source is larger than the remote illumination of periphery, thus improves the remote illumination of periphery by the irradiation area of another LED light source with superposition, thus make the illumination in the remote region of periphery and central area illumination basically identical.This mode realizing uniform-illumination needs the position rationally arranging different LED light source, can reach good radiation response, thus needs constantly test with the position adjusting at least two different LED light sources.
Utility model content
In view of this, the utility model provides a kind of far away with near place that light can be made to redistribute light is irradiated all to have the lens of the consistent effect of illumination, LED module and illuminator, to solve the problems of the technologies described above.
A kind of lens, comprise an optical axis, one for receiving the plane of incidence of light, and one from the protruding outgoing curved surface for emergent ray of the described plane of incidence.Described lens also comprise a symmetrical section along described optical axis and one vertical with this symmetrical section and along the spin crossover of described optical axis.The continuous increasing or decreasing of radius of curvature of the outline line of described symmetrical section and described outgoing surface intersection.Described outgoing curved surface comprises the left exit facet symmetrical relative to described symmetrical section and right exit facet.Described left exit facet and crossing with the described spin crossover respectively intersecting lens of right exit facet are all the camber line constrained line of 1/4th ellipses.Described camber line constrained line has converging action to the light arrived.Described left exit facet and right exit facet are the curved surface that described outline line is formed for movement locus scanning centered by any point and with described camber line constrained line on optical axis.
A kind of LED module, comprises a LED and and to coordinate lens with bright dipping with this LED.Described lens comprise an optical axis, one for receiving the plane of incidence of light, and one from the protruding outgoing curved surface for emergent ray of the described plane of incidence.Described lens also comprise a symmetrical section along described optical axis and one vertical with this symmetrical section and along the spin crossover of described optical axis.The continuous increasing or decreasing of radius of curvature of the outline line of described symmetrical section and described outgoing surface intersection.Described outgoing curved surface comprises the left exit facet symmetrical relative to described symmetrical section and right exit facet.Described left exit facet and crossing with the described spin crossover respectively intersecting lens of right exit facet are all the camber line constrained line of 1/4th ellipses.Described camber line constrained line has converging action to the light arrived.Described left exit facet and right exit facet are the curved surface that described outline line is formed for movement locus scanning centered by any point and with described camber line constrained line on optical axis.Described LED is set to face with the described plane of incidence.
A kind of illuminator, comprises a plane of illumination and at least one LED module.Described LED module and described plane of illumination interval are arranged.Described LED module comprises a LED and and to coordinate lens with bright dipping with this LED.Described LED module is used for Continuous irradiation plane of illumination.Described lens comprise an optical axis, one for receiving the plane of incidence of light, and one from the protruding outgoing curved surface for emergent ray of the described plane of incidence.Described lens also comprise a symmetrical section along described optical axis and one vertical with this symmetrical section and along the spin crossover of described optical axis.The continuous increasing or decreasing of radius of curvature of the outline line of described symmetrical section and described outgoing surface intersection.Described outgoing curved surface comprises the left exit facet symmetrical relative to described symmetrical section and right exit facet.Described left exit facet and crossing with the described spin crossover respectively intersecting lens of right exit facet are all the camber line constrained line of 1/4th ellipses.Described camber line constrained line has converging action to the light arrived.Described left exit facet and right exit facet are the curved surface that described outline line is formed for movement locus scanning centered by any point and with described camber line constrained line on optical axis.Described LED is set to face with the described plane of incidence.
Compared with prior art, left exit facet and the right exit facet of the utility model lens are symmetrical relative to symmetrical section, and thus light all has the consistent radiation response of illumination by after left exit facet and right exit facet at the right and left of plane of illumination.And the successively decreasing with the radius of curvature size of the outline line of outgoing surface intersection along the direction of illumination of light near to far away and increase progressively in the opposite direction of described symmetrical section, the side far away of thus more light deflection plane of illumination, thus the side far away making up the larger light decay that causes because irradiation distance is comparatively far away and reach plane of illumination has the radiation response consistent with nearlyer side illumination.Thus, the LED module with the utility model lens to be distributed light by single lens just can reach irradiated area greatly and the consistent lighting effect of uniform-illumination, and do not need to carry out light filling design by Different Light, facilitate application and there is higher using value.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, embodiment of the present utility model is described, wherein:
One of schematic perspective view of a kind of lens that Fig. 1 provides for the utility model.
The schematic perspective view two that Fig. 2 is the lens shown in Fig. 1.
Fig. 3 is for the lens shown in Fig. 1 are along the profile of A-A line.
Fig. 4 is for comprising the index path of the LED module irradiation plane of illumination of the lens shown in Fig. 3.
The schematic diagram of the size variation of the radius of curvature of the symmetrical section that Fig. 5 is the lens shown in Fig. 3 and the outline line of outgoing surface intersection.
Fig. 6 is for the lens shown in Fig. 1 are along the section of B-B line.
Fig. 7 is for comprising the index path of the LED module irradiation plane of illumination of the lens described in Fig. 6.
Detailed description of the invention
Based on accompanying drawing, specific embodiment of the utility model is further elaborated below.Should be understood that, the explanation of the utility model embodiment is not used in and limits protection domain of the present utility model herein.
The utility model illuminator 1000 comprises at least one as light source with the LED module 100 of bright dipping and a plane of illumination 200 irradiated by this LED module 100 continuous uniform.Described LED module 100 comprises lens 10 and a LED(Lighting Emitting Diode coordinated with these lens 10, light emitting diode) 20.Refer to Fig. 1 and Fig. 2, described lens 10 comprise an optical axis 11, one for receiving the plane of incidence 12 of light, a symmetrical section 13 along described optical axis 11, one vertical with this symmetrical section 13 and along the spin crossover 14 of described optical axis 11, and one from the outgoing curved surface 15 of the described plane of incidence 12 projection for emergent ray.It is envisioned that according to the needs of range of exposures, described LED module 100 can irradiate as unique light source of light fixture, also can irradiate by multiple LED module 100 light fixture of combining composition.Described LED module 100 can as illuminate metope wall lamp or for irradiating shelf, showcase etc.
Refer to 1 and Fig. 3, described optical axis 11 carries out the benchmark guiding of luminous intensity distribution design as lens 10, and in the present embodiment as the described structure of lens 10 of description and the reference of position.Be understandable that, described optical axis 11 is arranged according to the bright dipping center line i.e. optical axis of this light source of light source, and in the present embodiment, the bright dipping center line according to described LED20 is arranged.Thus in the present embodiment, described optical axis 11 is perpendicular to the described plane of incidence 12 and through the center of this plane of incidence 12.It should be noted that, in the present embodiment, introduce described optical axis 10 for the convenient shape that lens 10 are described.Because described lens 10 are the special-shaped lens of rotation asymmetry, the emergent ray of the light that LED20 is sent after the refraction of these lens 10 does not have rotational symmetry, thus at the line of vector that the implication of optical axis 11 described in the utility model is not overlapping with these lens 10 on locus through the optical axis emitted beam of the naked light source led 20 of lens 10 refraction.
Refer to Fig. 2, the described plane of incidence 12 is for receiving light.The described plane of incidence 20 can be set to relative with light source, such as can be set to described LED20 relatively to receive the light of this LED20.The described plane of incidence 12 can be set to a plane, thus the refraction making light enter described lens 10 inside through the described plane of incidence 12 has regular so that the optical design of described outgoing curved surface 15.
Refer to Fig. 3 and Fig. 4, the left exit facet 151 of described symmetrical section 13 as following outgoing curved surface 15 and the plane of symmetry of described right exit facet 152.Described symmetrical section 13 is arranged along described optical axis 11, and namely described optical axis 11 is positioned on described symmetrical section 13.Described symmetrical section 13 also comprises this symmetrical section 13 outline line 131 crossing with described outgoing curved surface 15.The continuous increasing or decreasing of radius of curvature of the outline line 131 that described symmetrical section 13 is crossing with described outgoing curved surface 15.The continuous increasing or decreasing of size of the radius of curvature of described outline line 131, what the radius of curvature size referring to described outline line 131 increased progressively on a direction then successively decreases in the opposite direction, and namely the size of the radius of curvature of this outline line 131 can be dull and continually varying.It is envisioned that the radius of curvature of described outline line 131 is larger, then the more level and smooth of outline line 131 is described, namely the angle of the tangential direction of this outline line 131 is less.And the radius of curvature of described outline line 131 more hour, then illustrate that this outline line 131 is more precipitous, namely this outline line 131 is larger with the angle of its tangential direction.In the present embodiment, according to the setting direction of described lens 10, the direction that the radius of curvature of described outline line 131 is successively decreased continuously and light directive are from the direction away from lens 10.
Refer to Fig. 4 and Fig. 5, in the present embodiment, in the direction that the size of the radius of curvature along described outline line 131 is successively decreased, described LED module 100 is near to distant place Continuous irradiation plane of illumination 200.On outline line 131 shown in Fig. 5, the radius of curvature of a point is the radius of curvature of R, b point is r, and R is greater than r, then direction is from a point to point b the direction that radius of curvature is successively decreased.Because described LED module 100 is applicable to being arranged on eminence, to irradiate metope or shelf etc. from high to low, namely from from the local directive close to this LED module 100 at a distance.People stands in ground, can experience the radiation response of uniform-illumination from lower to eminence.Thus, it should be noted that, if do not illustrated especially in the utility model, " up and down " (or height) that the utility model is mentioned refers to the direction from big to small of the radius of curvature of described outline line 131, and " left and right " refers to the right and left in the direction of successively decreasing of the radius of curvature of described outline line 131.
Refer to Fig. 6 and Fig. 7, described spin crossover 14 is crossing with described symmetrical section 13 and arrange along described optical axis 11, and thus described lens 10 are divided into four parts with described symmetrical section 13 by described spin crossover 14.It is envisioned that described spin crossover 14 and described symmetrical section 13 are projected as " ten " word on the face all vertical with this symmetrical section 13 with this spin crossover 14.Described spin crossover 14 is crossing with the left exit facet 151 of following outgoing curved surface 15 and right exit facet 152 is respectively the camber line constrained line 141 of 1/4th ellipses.Described camber line constrained line 141 has converging action to the light arriving this camber line constrained line 141.On the described symmetrical section 13 in major semiaxis position of the ellipse of described camber line constrained line 141, and its semi-minor axis is positioned on the described plane of incidence 12.The major semiaxis of the ellipse of described camber line constrained line 141 and the ratio of semi-minor axis can regulate according to light area, and when needs irradiated area is larger, the ratio of this long and short semiaxis is less, and when needs irradiated area is less, the ratio of this long and short semiaxis becomes large.
Refer to Fig. 1, Fig. 3 and Fig. 6, described outgoing curved surface 15 from the described plane of incidence 12 projection for emergent ray.Described outgoing curved surface 15 comprises with described symmetrical section 13 for the plane of symmetry and symmetrical left exit facet 151 and right exit facet 152.Described left exit facet 151 and described right exit facet 152 for described symmetrical section 13 outline line 131 crossing with described outgoing curved surface 15 on described optical axis 11 centered by any point and with described camber line constrained line 141 for the curved surface that movement locus scans and formed.In the present embodiment, because described camber line constrained line 141 is 1/4th ellipses, thus described outline line 131 is respectively according to the movement locus 90-degree rotation angle of this camber line constrained line 141, namely scans and forms described left exit facet 151 and right exit facet 152.Described camber line constrained line 141 has the effect of convergence to arriving the light of this camber line constrained line 141, thus described left exit facet 151 and right exit facet 152 also have the effect of converging ray.Described outgoing curved surface 15 may further include an inner sunken face 153, and namely this inner sunken face 153 is recessed into towards the rightabout of described optical axis 11.The center of described inner sunken face 153 is through described optical axis 11.Described inner sunken face 153 links up described left exit facet 151 and right exit facet 152 smoothly.Described inner sunken face 153 has disperse function, light through this inner sunken face 153 can be partial to described left exit facet 151 and right exit facet 152 respectively, the light intensity of the center of the described outgoing curved surface 15 of optical axis 11 process can be reduced and be unlikely to occur comparatively high light spot, thus making the illumination of the right and left of described outgoing curved surface 15 more even.In the present embodiment, the area of described left exit facet 151 and right exit facet 152 is greater than more than ten times of the area of described inner sunken face 153, thus makes described outgoing curved surface 15 camber line crossing with described spin crossover 14 be the shape of a saddle that indent is less.
Refer to Fig. 6, described lens 10 also comprise a light source storage tank 16.Described light source storage tank 16 is opened on this plane of incidence 12 along the intersection direction that described symmetrical section 13 is crossing with the described plane of incidence 12.What described light source storage tank 16 can reduce described LED20 further goes out light loss, makes the light of LED20 outgoing as far as possible through the outgoing of described lens 10.Be understandable that, described light source storage tank 16 is for accommodating described LED20, and thus the position of this light source storage tank 16 is determined, namely at the center of the described plane of incidence 12 according to the position of described optical axis 11.Described light source storage tank 16 can be one and intersect vertically the deep-slotted chip breaker offered with described symmetrical section 13, also can be a counterbore.In the present embodiment, described light source storage tank 16 can run through that to offer be a deep-slotted chip breaker, thus makes upper and lower uniform-illumination.Described light source storage tank 16 is opened on the described plane of incidence 12 along the direction vertical with described optical axis 11.More light is received and evenly distribution, the cross-sectional area size that the deep-slotted chip breaker of described light source storage tank 16 can be set to this light source storage tank 16 is further successively decreased from the middle to both ends in order to make described left exit facet 151 and right exit facet 152.Described LED20 is arranged on the center of this light source storage tank 16.The intermediate cross-section of described light source storage tank 16 amasss large place for accommodating described LED20, thus the light of this LED20 is distributed towards the two ends that cross-sectional area is little further.Thus, the arranging of deep-slotted chip breaker of described light source storage tank 16 can make uniform light distribute again while light efficiency lifting further.
Refer to Fig. 4 and Fig. 7, described LED20 as the light source of LED module 100 to emit beam.The parameter such as model, specification of described LED20 is all prior art, and at this, just it will not go into details.Described LED20 can be arranged on the plane of incidence 12 of described lens 10 in any way, for example (,) by a support, LED20 is set to the plane of incidence 12 of described lens 10 just right.In the present embodiment, the bright dipping design of described lens 10 arranges with the position of described LED20 to match.Reach maximum light efficiency to make full use of light, described LED20 is arranged on the center of the described plane of incidence 12, i.e. the optical axis coincidence of described optical axis 11 and described LED20.Described LED20 can be set to face (not shown) with the center of the described plane of incidence 12 by support etc., namely makes the optical axis of described LED20 overlap with described optical axis 11.In the present embodiment, in order to abundant light is to improve light efficiency, described LED20 is arranged in described light source storage tank 16.
Referring again to Fig. 4 and Fig. 7, described plane of illumination 200 is regions that described LED module 100 irradiates.Described plane of illumination 200 can be metope.In order to make the illuminated area of plane of illumination 200 larger, and lighting effect is better.When with described plane of illumination 200 for reference time, such as when described plane of illumination 200 be the metope vertically arranged, the downward-sloping setting of described illuminating module 100, thus it is wider to make from the irradiation downwards of described illuminating module 100.The downward-sloping setting of described illuminating module 100 and described optical axis 11 do not face with described plane of illumination and depart from, thus make described optical axis 11 be acute angle with the angle of described plane of illumination 200.The degree that described optical axis 11 departs from, the angle namely between described optical axis 11 and described plane of illumination 200 can adjust according to the needs of actual irradiated area.It is envisioned that as shown in FIG. 6 and 7, described optical axis 11 is projected on the face vertical with described plane of illumination 200, and the optical axis 11 in Fig. 6 and Fig. 7 thus shown on paper is perpendicular to described plane of illumination 200.
Compared with prior art, the left exit facet 151 of the utility model lens 10 and right exit facet 152 symmetrical relative to symmetrical section 13, thus light all has the consistent radiation response of illumination by after left exit facet 151 and right exit facet 152 at the right and left of plane of illumination 200.And the radius of curvature size of the outline line 131 crossing with outgoing curved surface 15 of described symmetrical section 13 is successively decreased along the direction of illumination of light near to far away and increases progressively in the opposite direction, the side far away of thus more light deflection plane of illumination 200, thus the side far away making up the larger light decay that causes because irradiation distance is comparatively far away and reach plane of illumination 200 has the radiation response consistent with nearlyer side illumination.Thus, the LED module 100 with the utility model lens 10 is distributed by single lens 10 pairs of light just can reach irradiated area greatly and the consistent lighting effect of illumination, do not need to carry out light filling design by Different Light, facilitate application and there is higher using value.
These are only preferred embodiment of the present utility model, and be not used in limitation protection domain of the present utility model, any amendment in the utility model spirit, equivalently to replace or improvement etc., be all encompassed in right of the present utility model.
Claims (10)
1. lens, comprise an optical axis, one for receiving the plane of incidence of light, and one from the protruding outgoing curved surface for emergent ray of the described plane of incidence, it is characterized in that: described lens also comprise a symmetrical section along described optical axis and one vertical with this symmetrical section and along the spin crossover of described optical axis, the continuous increasing or decreasing of radius of curvature of the outline line of described symmetrical section and described outgoing surface intersection, described outgoing curved surface comprises the left exit facet symmetrical relative to described symmetrical section and right exit facet, described left exit facet and the right exit facet intersecting lens crossing with described spin crossover are all the camber line constrained line of 1/4th ellipses, described camber line constrained line has converging action to arrived light, described left exit facet and right exit facet are the curved surface that described outline line is formed for movement locus scanning centered by any point and with described camber line constrained line on optical axis.
2. lens according to claim 1, it is characterized in that: described outgoing curved surface also comprises the inner sunken face between a described left exit facet and right exit facet, described inner sunken face is for linking up described left exit facet and described right exit facet smoothly, and described optical axis is through the center of described inner sunken face.
3. lens according to claim 1, is characterized in that: the described plane of incidence is plane.
4. lens according to claim 3, is characterized in that: described lens also comprise a light source storage tank, and described light source storage tank is opened on the described plane of incidence.
5. lens according to claim 4, is characterized in that: described light source storage tank is a deep-slotted chip breaker, and this light source storage tank runs through along the direction vertical with described optical axis to be offered.
6. lens according to claim 5, is characterized in that: the cross-sectional area size of described light source storage tank is successively decreased from the middle to both ends.
7. a LED module, comprises a LED, it is characterized in that: described LED module also comprises lens according to claim 1, the optical axis of described LED and the optical axis coincidence of described lens.
8. a LED module, comprise a LED, it is characterized in that: described LED module also comprises the lens according to any one of claim 4,5 or 6, and described LED is arranged in the light source storage tank of described lens, and the optical axis coincidence of the optical axis of described LED and described lens.
9. an illuminator, comprise a plane of illumination, it is characterized in that: described illuminator comprises at least one LED module according to claim 7 or 8, described LED module and described plane of illumination interval are arranged, the direction plane of illumination described in Continuous irradiation from the near to the remote that the light of described LED module outgoing successively decreases along the radius of curvature of described outline line.
10. illuminator according to claim 9, is characterized in that: in an angle between described optical axis and described plane of illumination, this angle is an acute angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420537370.4U CN204100136U (en) | 2014-09-18 | 2014-09-18 | A kind of lens, LED module and illuminator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420537370.4U CN204100136U (en) | 2014-09-18 | 2014-09-18 | A kind of lens, LED module and illuminator |
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| Publication Number | Publication Date |
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| CN204100136U true CN204100136U (en) | 2015-01-14 |
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| CN201420537370.4U Active CN204100136U (en) | 2014-09-18 | 2014-09-18 | A kind of lens, LED module and illuminator |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104976552A (en) * | 2015-06-29 | 2015-10-14 | 赛尔富电子有限公司 | Lens device and LED light fixture |
| CN105485628A (en) * | 2014-09-18 | 2016-04-13 | 宁波高新区赛尔富电子有限公司 | Lens, LED module and illuminating system |
| WO2021103755A1 (en) * | 2019-11-26 | 2021-06-03 | 华域视觉科技(上海)有限公司 | Vehicle lamp module, vehicle headlamp, and vehicle |
-
2014
- 2014-09-18 CN CN201420537370.4U patent/CN204100136U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105485628A (en) * | 2014-09-18 | 2016-04-13 | 宁波高新区赛尔富电子有限公司 | Lens, LED module and illuminating system |
| CN105485628B (en) * | 2014-09-18 | 2019-03-05 | 赛尔富电子有限公司 | A kind of lens, LED module and lighting system |
| CN104976552A (en) * | 2015-06-29 | 2015-10-14 | 赛尔富电子有限公司 | Lens device and LED light fixture |
| CN104976552B (en) * | 2015-06-29 | 2017-09-26 | 赛尔富电子有限公司 | A kind of lens devices and LED lamp |
| WO2021103755A1 (en) * | 2019-11-26 | 2021-06-03 | 华域视觉科技(上海)有限公司 | Vehicle lamp module, vehicle headlamp, and vehicle |
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Address after: The national high tech Zone Juxian 315103 Ningbo Road, Zhejiang province No. 1345 Patentee after: SELF ELECTRONICS CO., LTD. Address before: The national high tech Zone Juxian 315103 Ningbo Road, Zhejiang province No. 1345 Patentee before: SELF ELECTRONICS CO.,LTD. |