CN110500562A - A kind of ultra-low-angle light chopping lens - Google Patents
A kind of ultra-low-angle light chopping lens Download PDFInfo
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- CN110500562A CN110500562A CN201910758501.9A CN201910758501A CN110500562A CN 110500562 A CN110500562 A CN 110500562A CN 201910758501 A CN201910758501 A CN 201910758501A CN 110500562 A CN110500562 A CN 110500562A
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- 238000009826 distribution Methods 0.000 claims abstract description 26
- 230000002093 peripheral effect Effects 0.000 claims abstract description 16
- 230000003287 optical effect Effects 0.000 claims description 2
- 230000003442 weekly effect Effects 0.000 claims 1
- 208000007578 phototoxic dermatitis Diseases 0.000 abstract description 2
- 238000007747 plating Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000009738 saturating Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V5/00—Refractors for light sources
- F21V5/04—Refractors for light sources of lens shape
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
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Abstract
The invention discloses a kind of ultra-low-angle light chopping lens, including lens body, it is characterized in that, the lens body is parabolic, light source emission cavity is equipped among the bottom of the lens body, two sides are peripheral reflecting curved surface, upper recess is emitting cavity, emission cavity corresponds to the lens being set as among emitting cavity center in biconvex lens, converge light, table is electroplated layer outside the peripheral reflecting curved surface, make the completely inside cavity reflection of light, the surface of the emitting cavity is arranged in staged, form light-emitting surface, the hot spot that the combination of the hybrid receipts light and lenticular mirror optically focused of lens and plating reflective surface makes the two go out light overlaps, it is designed using staged light-emitting surface and shortens light path, improve the utilization rate of light, effectively increase peak light intensity, hot spot is converged within 2 °, it is good that hot spot cuts photosensitiveness, without obvious dazzle , peak light intensity is high, is suitble to single high-power LED light source light distribution.
Description
Technical field
The present invention relates to a kind of illuminator, specifically a kind of ultra-low-angle light chopping lens.
Background technique
Universal with LED light source, led lens are widely used, saturating the most commonly used is 4 °~60 °
Mirror is able to satisfy most working face demand substantially, but still fewer for the ultra-low-angle lens application less than 4 ° at present,
The light distribution for mainly having 2 kinds of modes that can do ultra-low-angle at present, first, reflector light distribution is made by the secondary light-distribution of reflector
Light convergence, light reaches 0 °~2 ° out, the disadvantage is that reflector production fraction defective is high, the light of central part is given off with lambert's body
Light cannot efficiently use, light efficiency is caused to reduce；Second, lens light distribution, most of current low-angle lens are all small sizes
Lens, lens centre structure are broken up intermediate light by frosting technology, are easy to produce dazzle, light-emitting angle minimum can only accomplish
3°
Summary of the invention
The purpose of the present invention is to provide kind of a ultra-low-angle light chopping lens, to solve mentioned above in the background art ask
Topic can match single high power light source, realize ultra-low-angle light distribution within 2 °.
To achieve the above object, the invention provides the following technical scheme:
A kind of ultra-low-angle light chopping lens, including lens body, which is characterized in that the lens body is parabolically
Shape, the bottom centre of the lens body are equipped with light source emission cavity, and two sides are peripheral reflecting curved surface, and upper recess is emitting cavity,
Emission cavity corresponds to the lens being set as among emitting cavity center in biconvex lens, converges light, the peripheral reflecting curved surface
Outside table is electroplated layer, makes the completely inside cavity reflection of light, and the surface of the emitting cavity is arranged in staged, forms out light
Face cooperates peripheral reflecting curved surface light to carry out secondary light-distribution and goes out light, reduces light path loss of the light in lens.
The emission cavity surrounding is concave arc curved surface, and top is to have face in the one convex song of lens of biconvex lens.
Another convex that emission cavity corresponds to the lens among emitting cavity center is curved surface.
The two sides are that peripheral reflecting curved surface (1) formation carries out secondary match to 0 °~52 ° and 128 °~180 ° of light
Light, peripheral reflecting curved surface (1) carry out receipts light to light, are in stepped emitting cavity through surface, make light after reflecting curved surface
Go out light perpendicular to light-emitting surface.
Light of the center in biconvex lens structure to 52 °~128 ° carries out light distribution, uses light perpendicular to light-emitting surface.
The curve of the reflecting curved surface curved surface degree substantially meets formula: y=0.0417x^2+0.9998x-0.0003 (0 <
X < 23, related coefficient 0.9999).
The emission cavity surrounded surface is that the curve of concave arc curved surface curved surface degree substantially meets formula: y=-0.1406x^4+
0.8686x^3-1.8296x^2+0.2686x+7.8638 (0 < x < 4, related coefficient 0.9976).
The curve of the curved surface substantially meets formula: y=-0.0312x^2+0.6222x+0.0313 (0 < x < 20, phase relation
Number 0.9998)
The curve of the convex surface substantially meets formula: y=0.0346x^2-0.4239x+1.3097 (0 < x < 13,
Related coefficient 0.9983).
Compared with prior art, the beneficial effects of the present invention are:
1. using multilayer optically focused to design, lens periphery curved surface cooperates staged plane to carry out optically focused, reduces lens
Integral thickness is conducive to lens machine-shaping, at the same reduce light in lens light path loss, further increase reflection,
Diffraction efficiency.
2. being designed in the middle part of lens using biconvex lens optically focused, hot spot is converged within 2 °, the peak light intensity of lens is promoted,
Realize long distance illumination.
3. the combination of the hybrid receipts light and lenticular mirror optically focused of lens and plating reflective surface both makes the hot spot of light out
It overlaps, is designed using staged light-emitting surface and shorten light path, improved the utilization rate of light, effectively increase peak light intensity, into one
Step forms ultra-low-angle light chopping hot spot, and hot spot is converged within 2 °, and relative to existing reflector and lens light distribution, this is specially
The light utilization efficiency of the lens of benefit design is higher, and hot spot cuts that photosensitiveness is good, and without obvious dazzle, peak light intensity is high, be suitble to single it is high-power
LED light source light distribution.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is another cross-sectional view of structure of the invention.
Fig. 3 is the beam projecting path of optical texture of the present invention.
Fig. 4 is 2 curve distribution of concave arc curved surface of the invention.
Fig. 5 is 1 curve distribution of reflecting curved surface of the invention.
Fig. 6 is 4 curve distribution of curved surface of the invention.
Fig. 7 is that convex song of the invention has 5 curve distribution of face.
Fig. 8 is present invention solid with reference to figure.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
A kind of ultra-low-angle light chopping lens, including lens body, the lens body is parabolic, the lens
Light source emission cavity 6 is equipped among the bottom of ontology, two sides are peripheral reflecting curved surface 1, and upper recess is emitting cavity 7, and emission cavity 6 is right
The lens being set as among 7 center of emitting cavity in biconvex lens are answered, converge light, the 1 outside table of peripheral reflecting curved surface
For electroplated layer, making the completely inside cavity reflection of light, the surface of the emitting cavity 7 is arranged in staged, is formed light-emitting surface (3),
Cooperate peripheral 1 light of reflecting curved surface to carry out secondary light-distribution and go out light, reduces light path loss of the light in lens.
6 surrounded surface of emission cavity is concave arc curved surface 2, and top is to have face 5 in the one convex song of lens of biconvex lens.
Another convex of lens among corresponding 7 center of emitting cavity of emission cavity 6 is curved surface 4.
The two sides are that peripheral reflecting curved surface 1 forms the light progress secondary light-distribution to 0 °~52 ° and 128 °~180 °,
Peripheral reflecting curved surface 1 carries out receipts light to light, is in stepped emitting cavity 7 through surface, keeps light vertical after reflecting curved surface 1
Go out light in light-emitting surface.
Light of the center in biconvex lens structure to 52 °~128 ° carries out light distribution, uses light perpendicular to light-emitting surface.
The curve of the 1 curved surface degree of reflecting curved surface substantially meets formula: y=0.0417x^2+0.9998x-0.0003 (0
< x < 23, related coefficient 0.9999).
6 surrounding of emission cavity is that the curve of 2 curved surface degree of concave arc curved surface substantially meets formula: y=-0.1406x^4+
0.8686x^3-1.8296x^2+0.2686x+7.8638 (0 < x < 4, related coefficient 0.9976).
The curve of the curved surface 4 substantially meets formula: and y=-0.0312x^2+0.6222x+0.0313 (0 < x < 20, it is related
Coefficient 0.9998)
The curve of the convex surface 5 substantially meets formula: y=0.0346x^2-0.4239x+1.3097 (0 < x < 13,
Related coefficient 0.9983).
Lens-section structure is as shown in Figure 1, Figure 2, lens periphery reflecting curved surface 1 to 0 °~52 ° and 128 °~180 ° of light into
Row secondary light-distribution, center biconvex lens structure carry out light distribution to 52 °~128 ° of light, and Fig. 3 is the light of optics of lens structure
Exit path, 2 curve of concave arc curved surface make 0 °~52 ° and 128 °~180 ° of light from air incidence to lens in when do not generate partially
Folding, 2 curve of concave arc curved surface substantially meet formula: y=-0.1406x^4+0.8686x^3-1.8296x^2+0.2686x+7.8638
(0 < x < 4, related coefficient 0.9976), curve distribution such as Fig. 4, parameter are as follows:
Curved surface 1 be responsible for receipts light is carried out to the light of 0 °~52 ° and 128 °~180 °, make light after curved surface 1 perpendicular to
Light-emitting surface goes out light.1 surface of curved surface has carried out electroplating processes, further makes light reflection more abundant, and further increase lens and go out
Light efficiency.1 curve of curved surface uses parabolic curve design, substantially meets formula: y=0.0417x^2+0.9998x-0.0003 (0 < x <
23, related coefficient 0.9999), curve distribution such as Fig. 5.Parameter is as follows:
Lens centre biconvex lens structure is responsible for 52 °~128 ° of light optically focused using light perpendicular to light-emitting surface, biconvex
4 curve of lens arrangement curved surface substantially meets formula: y=-0.0312x^2+0.6222x+0.0313 (0 < x < 20, related coefficient
0.9998), curve distribution such as Fig. 6.
5 curve of convex surface substantially meets formula: y=0.0346x^2-0.4239x+1.3097 (0 < x < 13, related coefficient
0.9983), curve distribution such as Fig. 7.
Light-emitting surface 3 then uses stepped design, uses multilayer optically focused and designs, lens periphery curved surface cooperates staged plane
Optically focused is carried out, reduces the integral thickness of lens, is conducive to lens machine-shaping, while reducing light path of the light in lens
Loss, further increases reflection, diffraction efficiency, so that lens light extraction efficiency is reached 90% or more, peak light intensity reaches 350000cd/
Klm or more.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims
Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (9)
1. a kind of ultra-low-angle light chopping lens, including lens body, which is characterized in that the lens body is parabolically
The bottom centre of shape, the lens body is equipped with light source emission cavity (6), and two sides are peripheral reflecting curved surface (1), and upper recess is out
Optical cavity (7), emission cavity (6) corresponds to the lens being set as among emitting cavity (7) center in biconvex lens, converges light, described
Peripheral reflecting curved surface (1) outside table be electroplated layer, make the completely inside cavity reflection of light, the surface of the emitting cavity (7) is in
Staged setting, forms light-emitting surface (3), cooperates peripheral reflecting curved surface (1) light to carry out secondary light-distribution and goes out light, reduces light and exist
Light path loss in lens.
2. ultra-low-angle light chopping lens according to claim 1, it is characterised in that: (6) four weekly form of emission cavity
Face is concave arc curved surface (2), and top is to have face (5) in the one convex song of lens of biconvex lens.
3. ultra-low-angle light chopping lens according to claim 1, it is characterised in that: emission cavity (6) is corresponding emitting cavity (7)
Another convex of lens among center is curved surface (4).
4. ultra-low-angle light chopping lens according to claim 1, it is characterised in that: the two sides are that periphery reflection is bent
Face (1), which is formed, carries out secondary light-distribution to 0 °~52 ° and 128 °~180 ° of light, and peripheral reflecting curved surface (1) receives light
Light is in stepped emitting cavity (7) through surface, light is made to go out light perpendicular to light-emitting surface after reflecting curved surface (1).
5. ultra-low-angle light chopping lens according to claim 1, it is characterised in that: the center is in biconvex lens knot
Structure carries out light distribution to 52 °~128 ° of light, uses light perpendicular to light-emitting surface.
6. ultra-low-angle light chopping lens according to claim 1, it is characterised in that: described reflecting curved surface (1) curved surface
The curve of degree substantially meets formula: y=0.0417x^2+0.9998x-0.0003 (0 < x < 23, related coefficient 0.9999).
7. ultra-low-angle light chopping lens according to claim 2, it is characterised in that: described emission cavity (6) surrounding is
The curve of concave arc curved surface (2) curved surface degree substantially meets formula: y=-0.1406x^4+0.8686x^3-1.8296x^2+0.2686x
+ 7.8638 (0 < x < 4, related coefficients 0.9976).
8. ultra-low-angle light chopping lens according to claim 3, it is characterised in that: the curve of the curved surface (4) is basic
Meet formula: y=-0.0312x^2+0.6222x+0.0313 (0 < x < 20, related coefficient 0.9998).
9. ultra-low-angle light chopping lens according to claim 2, it is characterised in that: the song of the convex surface (5)
Line substantially meets formula: y=0.0346x^2-0.4239x+1.3097 (0 < x < 13, related coefficient 0.9983).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910758501.9A CN110500562A (en) | 2019-08-16 | 2019-08-16 | A kind of ultra-low-angle light chopping lens |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910758501.9A CN110500562A (en) | 2019-08-16 | 2019-08-16 | A kind of ultra-low-angle light chopping lens |
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| CN110500562A true CN110500562A (en) | 2019-11-26 |
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| CN201910758501.9A Pending CN110500562A (en) | 2019-08-16 | 2019-08-16 | A kind of ultra-low-angle light chopping lens |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080310159A1 (en) * | 2007-06-15 | 2008-12-18 | Jeyachandrabose Chinniah | Near field lens |
| CN202118807U (en) * | 2011-07-02 | 2012-01-18 | 重庆科鹰电气有限公司 | Automobile LED (light-emitting diode) lens |
| CN103629622A (en) * | 2012-08-22 | 2014-03-12 | 上海康耐司信号设备有限公司 | Lens capable of converging light rays emitted by LED into parallel rays |
| CN104132305A (en) * | 2014-07-04 | 2014-11-05 | 佛山市中山大学研究院 | Condensing lens |
| CN104296067A (en) * | 2013-07-16 | 2015-01-21 | 堤维西交通工业股份有限公司 | Light guide lens |
| US20160312977A1 (en) * | 2015-04-21 | 2016-10-27 | Ledengin, Inc. | Total internal reflection lens with step-shaped front surface and central convex region |
| CN206145621U (en) * | 2016-09-27 | 2017-05-03 | 深圳市金流明光电技术有限公司 | Lens structure and LED lamps and lanterns that have this structure |
| TWM578246U (en) * | 2019-02-01 | 2019-05-21 | 福安工業股份有限公司 | Multi-mapping vehicular lamp |
| CN210771962U (en) * | 2019-08-16 | 2020-06-16 | 广东德洛斯照明工业有限公司 | Super small angle light-cutting type lens |
-
2019
- 2019-08-16 CN CN201910758501.9A patent/CN110500562A/en active Pending
Patent Citations (9)
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|---|---|---|---|---|
| US20080310159A1 (en) * | 2007-06-15 | 2008-12-18 | Jeyachandrabose Chinniah | Near field lens |
| CN202118807U (en) * | 2011-07-02 | 2012-01-18 | 重庆科鹰电气有限公司 | Automobile LED (light-emitting diode) lens |
| CN103629622A (en) * | 2012-08-22 | 2014-03-12 | 上海康耐司信号设备有限公司 | Lens capable of converging light rays emitted by LED into parallel rays |
| CN104296067A (en) * | 2013-07-16 | 2015-01-21 | 堤维西交通工业股份有限公司 | Light guide lens |
| CN104132305A (en) * | 2014-07-04 | 2014-11-05 | 佛山市中山大学研究院 | Condensing lens |
| US20160312977A1 (en) * | 2015-04-21 | 2016-10-27 | Ledengin, Inc. | Total internal reflection lens with step-shaped front surface and central convex region |
| CN206145621U (en) * | 2016-09-27 | 2017-05-03 | 深圳市金流明光电技术有限公司 | Lens structure and LED lamps and lanterns that have this structure |
| TWM578246U (en) * | 2019-02-01 | 2019-05-21 | 福安工業股份有限公司 | Multi-mapping vehicular lamp |
| CN210771962U (en) * | 2019-08-16 | 2020-06-16 | 广东德洛斯照明工业有限公司 | Super small angle light-cutting type lens |
Non-Patent Citations (1)
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| 王敏帅;黄晓菁;蔡晓梅;杨兰;郑凯;王兴焱;: "大功率LED路灯二次光学设计的模拟仿真", 集美大学学报(自然科学版), no. 03, 25 May 2015 (2015-05-25) * |
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