CN204042747U - LED lens and comprise the LED light source of these LED lens - Google Patents
LED lens and comprise the LED light source of these LED lens Download PDFInfo
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- CN204042747U CN204042747U CN201420329581.9U CN201420329581U CN204042747U CN 204042747 U CN204042747 U CN 204042747U CN 201420329581 U CN201420329581 U CN 201420329581U CN 204042747 U CN204042747 U CN 204042747U
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- 238000009826 distribution Methods 0.000 claims abstract description 18
- 238000002347 injection Methods 0.000 claims abstract description 17
- 239000007924 injection Substances 0.000 claims abstract description 17
- 238000004020 luminiscence type Methods 0.000 claims abstract description 17
- 238000000034 method Methods 0.000 claims description 14
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 3
- 229910003460 diamond Inorganic materials 0.000 description 3
- 239000010432 diamond Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000006185 dispersion Substances 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000000149 argon plasma sintering Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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Abstract
The utility model discloses a kind of LED lens and comprise the LED light source of these LED lens, described LED lens are except the side in the central surface comprised in the plane of incidence and bottom surface and exit facet, outside first top-surface camber and the second top-surface camber, also comprise: be positioned at the scattering micro-structural on described first top-surface camber and the second top-surface camber, during the position of described scattering micro-structural distributes by force with LED light, the position of bright ring is corresponding, scattering is carried out to the light forming bright ring through described first top-surface camber and the injection of the second top-surface camber, thus can under the prerequisite not changing the main direction of advance of LED luminescence chip light, slight scattering is carried out to the light that it forms bright ring position, reduce the light intensity of described LED light source bright ring position, improve the light intensity of described LED light source Crape ring position, improve the uniformity of described LED light source light distribution.
Description
Technical field
The utility model relates to LED lens manufacturing techniques field, particularly relates to a kind of LED lens and comprises the LED light source of these LED lens.
Background technology
LED belongs to the spot light sending certain angle light beam, during for directly-down liquid crystal display backlight source, needs hundreds of even thousands of three-primary color LED to be arranged into certain array and forms area source.Changing into uniform area source from spot light, is the key technology of LED backlight.In prior art, mounted lens on described LED usually, to change the light distribution of LED.
As described in Figure 1, LED lens of the prior art are axisymmetric rotational solid, comprise: the plane of incidence, the described plane of incidence comprises: be positioned at the central surface 01 of described LED lens centre and be positioned at described central surface 01 surrounding, the bottom surface 02 be connected with described central surface 01, wherein, described central surface 01 is spherical crown curved surface; Exit facet, described exit facet comprises: side 03 connected vertically with described bottom surface 02, the first top-surface camber 04 and the second top-surface camber 05 be connected with described side 03, wherein, described first top-surface camber 04 is connected with the second top-surface camber 05, and about the axisymmetrical of described LED lens, thus utilize described LED lens that described LED is sent point-source light ray to convert area source light to.
But the light that LED sends uniformity after above-mentioned LED lens injection is poor.
Utility model content
For solving the problems of the technologies described above, the utility model embodiment provides a kind of LED lens and comprises the LED light source of these LED lens, to improve the uniformity of LED light source light distribution.
For solving the problem, the utility model embodiment provides following technical scheme:
A kind of LED lens, comprising:
The plane of incidence, the described plane of incidence comprises: be positioned at the central surface of described LED lens centre and be positioned at described central surface surrounding, the bottom surface be connected with described central surface;
Exit facet, described exit facet comprises: the side be connected with described plane perpendicular, the first top-surface camber be connected with described side and the second top-surface camber, and described first top-surface camber is connected with the second top-surface camber, and about the axisymmetrical of described LED lens;
In addition, also comprise:
Be positioned at the scattering micro-structural on described first top-surface camber and the second top-surface camber, during the position of described scattering micro-structural distributes by force with LED light, the position of bright ring is corresponding, carries out scattering to the light forming bright ring through described first top-surface camber and the injection of the second top-surface camber.
Preferably, the angle of described scattering micro-structural also between described side and described bottom surface, in the region of 60 ° of-90 ° of scopes, comprises endpoint value.
Preferably, described scattering micro-structural is the circulus being parallel to described bottom surface.
Preferably, the projection of adjacent scattering micro-structural on described bottom surface is end to end.
Preferably, the distance between described scattering micro-structural two ends is 0 μm-100 μm, does not comprise left end point value.
Preferably, described scattering micro-structural is axially symmetric structure.
Preferably, the manufacture craft of described LED lens is Shooting Technique.
A kind of LED light source, comprising:
LED luminescence chip and the LED lens described in above-mentioned any one, wherein, the cavity that the bottom surface of central surface and described LED lens that described LED luminescence chip is positioned at described LED lens is formed, and in described LED lens in the position of scattering micro-structural and the light distribution of LED luminescence chip the position of bright ring corresponding.
Compared with prior art, technique scheme has the following advantages:
The technical scheme that the utility model embodiment provides, except the side in the central surface comprised in the plane of incidence and bottom surface and exit facet, outside first top-surface camber and the second top-surface camber, also comprise: be positioned at the scattering micro-structural on described first top-surface camber and the second top-surface camber, during the position of described scattering micro-structural distributes by force with LED light, the position of bright ring is corresponding, scattering is carried out to the light forming bright ring through described first top-surface camber and the injection of the second top-surface camber, thus can under the prerequisite not changing the main direction of advance of LED luminescence chip light, slight scattering is carried out to the light that it forms bright ring position, reduce the light intensity of described LED light source bright ring position, improve the light intensity of described LED light source Crape ring position, improve the uniformity of described LED light source light distribution.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of LED lens in prior art;
Fig. 2 be in prior art LED lens centre curved surface diverse location to the distance schematic diagram of LED launching centre;
The structural representation of LED lens of Fig. 3 for providing in the utility model embodiment;
The partial structurtes enlarged diagram of LED lens of Fig. 4 for providing in the utility model embodiment;
The partial structurtes light path schematic diagram of LED lens of Fig. 5 for providing in the utility model embodiment.
Detailed description of the invention
Just as described in the background section, the light that sends of LED uniformity after LED lens injection of the prior art is poor.
Inventor researches and develops discovery, this is the light itself sent due to LED is heterogeneous, but with its central point for starting point, present the process of light-dark-bright, namely multiple bright secretly alternate circular fringes is formed, thus the light causing described LED to send still forms multiple bright secretly alternate circular fringes after described LED lens, the uniformity is poor.
Inventor studies discovery further, the central surface 01 of described LED lens is spherical crown curved surface, and described central surface 01 reduces to the distance R of launching centre (i.e. LED) along with the increase of emission angle, as shown in Figure 2, R2<R1, thus by the distance regulating described central surface 01 to arrive described launching centre everywhere, the light distribution that LED emits beam after described LED lens can be regulated.But rely on described central surface 01 to arrive the uniform optical profile of the more difficult realization of reduction of the distance R value of described launching centre everywhere completely, optical design is comparatively difficult.
In view of this, the utility model embodiment provides a kind of LED lens, not only comprises:
The plane of incidence, the described plane of incidence comprises: be positioned at the central surface of described LED lens centre and be positioned at described central surface surrounding, the bottom surface be connected with described central surface;
Exit facet, described exit facet comprises: the side be connected with described plane perpendicular, the first top-surface camber be connected with described side and the second top-surface camber, and described first top-surface camber is connected with the second top-surface camber, and about the axisymmetrical of described LED lens;
Also comprise:
Be positioned at the scattering micro-structural on described first top-surface camber and the second top-surface camber, during the position of described scattering micro-structural distributes by force with LED light, the position of bright ring is corresponding, carries out scattering to the light forming bright ring through described first top-surface camber and the injection of the second top-surface camber.
Accordingly, the utility model embodiment still provides a kind of LED light source, comprising:
LED luminescence chip and above-mentioned LED lens, wherein, the cavity that the bottom surface of central surface and described LED lens that described LED luminescence chip is positioned at described LED lens is formed, and in described LED lens in the position of scattering micro-structural and the light distribution of LED luminescence chip the position of bright ring corresponding.
As can be seen here, compared to LED lens of the prior art, LED lens that the utility model embodiment provides and comprise the LED light source of these LED lens, except the central surface comprised in the plane of incidence and bottom surface, and the side in exit facet, outside first top-surface camber and the second top-surface camber, also comprise: be positioned at the scattering micro-structural on described first top-surface camber and the second top-surface camber, during the position of described scattering micro-structural distributes by force with LED light, the position of bright ring is corresponding, scattering is carried out to the light forming bright ring through described first top-surface camber and the injection of the second top-surface camber, thus can under the prerequisite not changing the main direction of advance of LED luminescence chip light, slight scattering is carried out to the light that it forms bright ring position, reduce the light intensity of described LED light source bright ring position, improve the light intensity of described LED light source Crape ring position, improve the uniformity of described LED light source light distribution.
For enabling above-mentioned purpose of the present utility model, feature and advantage more become apparent, and are described in detail detailed description of the invention of the present utility model below in conjunction with accompanying drawing.
Set forth detail in the following description so that fully understand the utility model.But the utility model can be different from alternate manner described here to implement with multiple, those skilled in the art can when doing similar popularization without prejudice to when the utility model intension.Therefore the utility model is not by the restriction of following public concrete enforcement.
As shown in Figure 3 and Figure 4, the utility model embodiment provides a kind of LED lens, comprising:
The plane of incidence, the described plane of incidence comprises: be positioned at the central surface 1 of described LED lens centre and be positioned at described central surface 1 surrounding, the bottom surface 2 be connected with described central surface 1;
Exit facet, described exit facet comprises: side 3 connected vertically with described bottom surface 2, the first top-surface camber 4 and the second top-surface camber 5 be connected with described side 3, and described first top-surface camber 4 is connected with the second top-surface camber 5, and about the axisymmetrical of described LED lens;
Be positioned at the scattering micro-structural 6 on described first top-surface camber 4 and the second top-surface camber 5, during the position of described scattering micro-structural 6 distributes by force with LED light, the position of bright ring is corresponding, carries out scattering to the light forming bright ring through described first top-surface camber 4 and the injection of the second top-surface camber 5.
The LED lens that contrast the utility model embodiment provides and LED lens of the prior art can find, the LED lens that the utility model embodiment provides are compared to LED lens of the prior art, add the scattering micro-structural 6 be positioned on described first top-surface camber 4 and the second top-surface camber 5, during the position of described scattering micro-structural 6 distributes by force with LED light, the position of bright ring is corresponding, scattering is carried out to the light forming bright ring through described first top-surface camber 4 and the injection of the second top-surface camber 5, as shown in Figure 5, the light of all angles is mixed, thus the Crape ring position that the some light that originally should focus on bright ring position in LED light source light distribution can be scattered in LED light source light distribution, reduce the light intensity of bright ring position in LED light source light distribution, improve the light intensity of Crape ring position in LED light source light distribution, improve the uniformity of the upper light distribution of LED light source emitted light receiving plane (i.e. shadow surface).
In an embodiment of the present utility model, as shown in Figure 4, described scattering micro-structural 6 is for being parallel to the circulus of described bottom surface 2, thus the main direction of advance neither changing original light can be ensured, slight scattering can also be carried out to original light, make the light that original bright ring position is corresponding, partial dispersion is to the Crape ring position adjacent with described bright ring, reduce the light intensity of described bright ring position, the light intensity of described Crape ring position is provided, thus the uniformity of light after described LED lens injection that raising LED sends, the uniformity of light distribution on the receiving plane namely improving LED emitted light.
On the basis of above-mentioned any embodiment, in an embodiment of the present utility model, the projection of adjacent scattering micro-structural 6 on described bottom surface 2 is end to end, namely except the two ends of described scattering micro-structural 6, the projection of adjacent scattering micro-structural 6 is not overlapping, thus ensure the light of a certain injection on described LED lens first top-surface camber 4 or the second top-surface camber 5, scattering can not be repeated by multiple scattering micro-structural 6, affect dispersion effect.
On the basis of above-mentioned any embodiment, in another embodiment of the present utility model, distance between described scattering micro-structural 6 two ends is preferably 0 μm-100 μm, do not comprise left end point value, be more preferably 20 μm, 30 μm and 50 μm, thus ensure the main direction of advance not changing original light, avoid the direction of advance causing excessively changing original light owing to increasing described scattering micro-structural 6, reduce the uniformity that LED emits beam after described LED lens injection.
On the basis of above-mentioned any embodiment, in another embodiment of the present utility model, described scattering micro-structural 6 is preferably axially symmetric structure, thus make the part uniform intensity at described bright ring place scatter on the Crape ring of described bright ring both sides, improve the uniformity that LED emits beam after described LED lens injection further.
Technical in above-mentioned any embodiment, in another embodiment of the present utility model, the angle of described scattering micro-structural 6 also between described side 3 and described bottom surface 2 is in the region of 60 ° of-90 ° of scopes, comprise endpoint value (i.e. LED emit beam the region beyond half light intensity), thus scattering is carried out to the light of wide-angle, make a part of light can directive receiving plane (i.e. shadow surface), part light scattering is on the extra reflector plate arranged, again directive receiving plane after reflection, improves the light energy on described receiving plane.
It should be noted that, the manufacture craft of the LED lens that the utility model embodiment provides is preferably integral forming process, be more preferably Shooting Technique, comprise: utilize single-point diamond lathe process technique, make the lens model corresponding with the LED lens that the utility model embodiment provides; Utilize Shooting Technique, the basis of described lens model makes the LED lens that the utility model embodiment provides.
Concrete, in an embodiment of the present utility model, utilize single-point diamond lathe process technique, when making the lens model corresponding with the LED lens that the utility model embodiment provides, only single-point diamond lathe process technique need utilized, when making LED lens of the prior art, and needing the position making scattering micro-structural 6, its X-coordinate and Y-coordinate being carried out certain displacement in a certain direction and moves.But the utility model does not limit this, in other embodiments of the present utility model, described LED lens by other preparation methods, specifically can also depend on the circumstances.
In sum, the LED lens that the utility model embodiment provides, except the side 3 in the central surface 1 comprised in the plane of incidence and bottom surface 2 and exit facet, outside first top-surface camber 4 and the second top-surface camber 5, also comprise: be positioned at the scattering micro-structural 6 on described first top-surface camber 4 and the second top-surface camber 5, during the position of described scattering micro-structural 6 distributes by force with LED light, the position of bright ring is corresponding, scattering is carried out to the light forming bright ring through described first top-surface camber 4 and the injection of the second top-surface camber 5, thus can under the prerequisite not changing the main direction of advance of LED luminescence chip light, slight scattering is carried out to the light that it forms bright ring position, the light of each shooting angle is mixed, reduce the light intensity of described LED light source bright ring position, improve the light intensity of described LED light source Crape ring position, improve the uniformity of the light distribution on the shadow surface of described LED emitted light.
Accordingly, the utility model embodiment still provides a kind of LED light source, comprise: the LED lens that LED luminescence chip and above-mentioned any embodiment provide, wherein, described LED lens comprise: the plane of incidence, the described plane of incidence comprises: be positioned at the central surface of described LED lens centre and be positioned at described central surface surrounding, the bottom surface be connected with described central surface; Exit facet, described exit facet comprises: the side be connected with described plane perpendicular, the first top-surface camber be connected with described side and the second top-surface camber, and described first top-surface camber is connected with the second top-surface camber, and about the axisymmetrical of described LED lens; Be positioned at the scattering micro-structural on described first top-surface camber and the second top-surface camber, during the position of described scattering micro-structural distributes by force with LED light, the position of bright ring is corresponding, carries out scattering to the light forming bright ring through described first top-surface camber and the injection of the second top-surface camber.The cavity that the bottom surface of central surface and described LED lens that described LED luminescence chip is positioned at described LED lens is formed, and in described LED lens in the position of scattering micro-structural and the light distribution of LED luminescence chip the position of bright ring corresponding.
As can be seen here, in the LED light source that the utility model embodiment provides, described LED lens are except the side in the central surface comprised in the plane of incidence and bottom surface and exit facet, outside first top-surface camber and the second top-surface camber, also comprise: be positioned at the scattering micro-structural on described first top-surface camber and the second top-surface camber, during the position of described scattering micro-structural distributes by force with LED light, the position of bright ring is corresponding, scattering is carried out to the light forming bright ring through described first top-surface camber and the injection of the second top-surface camber, thus can under the prerequisite not changing the main direction of advance of LED luminescence chip light, slight scattering is carried out to the light that it forms bright ring position, the light of each shooting angle is mixed, reduce the light intensity of described LED light source bright ring position, improve the light intensity of described LED light source Crape ring position, improve the uniformity of the light distribution on described LED light source shadow surface.
In this description, various piece adopts the mode of going forward one by one to describe, and what each some importance illustrated is the difference with other parts, between various piece identical similar portion mutually see.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the utility model.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein when not departing from spirit or scope of the present utility model, can realize in other embodiments.Therefore, the utility model can not be restricted to embodiment illustrated herein, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (8)
1. LED lens, comprising:
The plane of incidence, the described plane of incidence comprises: be positioned at the central surface of described LED lens centre and be positioned at described central surface surrounding, the bottom surface be connected with described central surface;
Exit facet, described exit facet comprises: the side be connected with described plane perpendicular, the first top-surface camber be connected with described side and the second top-surface camber, and described first top-surface camber is connected with the second top-surface camber, and about the axisymmetrical of described LED lens;
It is characterized in that, also comprise:
Be positioned at the scattering micro-structural on described first top-surface camber and the second top-surface camber, during the position of described scattering micro-structural distributes by force with LED light, the position of bright ring is corresponding, carries out scattering to the light forming bright ring through described first top-surface camber and the injection of the second top-surface camber.
2. LED lens according to claim 1, is characterized in that, the angle of described scattering micro-structural also between described side and described bottom surface, in the region of 60 ° of-90 ° of scopes, comprises endpoint value.
3. LED lens according to claim 1 and 2, is characterized in that, described scattering micro-structural is the circulus being parallel to described bottom surface.
4. LED lens according to claim 3, is characterized in that, the projection of adjacent scattering micro-structural on described bottom surface is end to end.
5. LED lens according to claim 4, is characterized in that, the distance between described scattering micro-structural two ends is 0 μm-100 μm, does not comprise left end point value.
6. LED lens according to claim 5, is characterized in that, described scattering micro-structural is axially symmetric structure.
7. LED lens according to claim 1, is characterized in that, the manufacture craft of described LED lens is Shooting Technique.
8. a LED light source, is characterized in that, comprising:
LED luminescence chip and the LED lens described in any one of claim 1-7, wherein, the cavity that the bottom surface of central surface and described LED lens that described LED luminescence chip is positioned at described LED lens is formed, and in described LED lens in the position of scattering micro-structural and the light distribution of LED luminescence chip the position of bright ring corresponding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420329581.9U CN204042747U (en) | 2014-06-19 | 2014-06-19 | LED lens and comprise the LED light source of these LED lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420329581.9U CN204042747U (en) | 2014-06-19 | 2014-06-19 | LED lens and comprise the LED light source of these LED lens |
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| Publication Number | Publication Date |
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| CN204042747U true CN204042747U (en) | 2014-12-24 |
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| CN201420329581.9U Expired - Lifetime CN204042747U (en) | 2014-06-19 | 2014-06-19 | LED lens and comprise the LED light source of these LED lens |
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| CN (1) | CN204042747U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015192347A1 (en) * | 2014-06-19 | 2015-12-23 | 苏州东山精密制造股份有限公司 | Led lens and led light source comprising led lens |
| CN105333395A (en) * | 2014-06-19 | 2016-02-17 | 苏州东山精密制造股份有限公司 | LED lens and LED light source comprising same |
| CN106969327A (en) * | 2015-11-06 | 2017-07-21 | 西特科照明有限公司 | Lamp for internal or external illumination, particularly street lamp |
| CN107816701A (en) * | 2017-01-20 | 2018-03-20 | 佛山市中山大学研究院 | A kind of downward back optical lens with non-smooth curve |
| CN107991807A (en) * | 2017-12-07 | 2018-05-04 | 苏州奥浦迪克光电技术有限公司 | The backlight module of backlight module lens and its composition |
-
2014
- 2014-06-19 CN CN201420329581.9U patent/CN204042747U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015192347A1 (en) * | 2014-06-19 | 2015-12-23 | 苏州东山精密制造股份有限公司 | Led lens and led light source comprising led lens |
| CN105333395A (en) * | 2014-06-19 | 2016-02-17 | 苏州东山精密制造股份有限公司 | LED lens and LED light source comprising same |
| CN106969327A (en) * | 2015-11-06 | 2017-07-21 | 西特科照明有限公司 | Lamp for internal or external illumination, particularly street lamp |
| CN107816701A (en) * | 2017-01-20 | 2018-03-20 | 佛山市中山大学研究院 | A kind of downward back optical lens with non-smooth curve |
| CN107991807A (en) * | 2017-12-07 | 2018-05-04 | 苏州奥浦迪克光电技术有限公司 | The backlight module of backlight module lens and its composition |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141224 |