CN103511976A - LED lens used for lighting building outer glass wall - Google Patents
LED lens used for lighting building outer glass wall Download PDFInfo
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- CN103511976A CN103511976A CN201210198163.6A CN201210198163A CN103511976A CN 103511976 A CN103511976 A CN 103511976A CN 201210198163 A CN201210198163 A CN 201210198163A CN 103511976 A CN103511976 A CN 103511976A
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- lens body
- lens
- glass
- exterior wall
- building exterior
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Abstract
The invention discloses an LED lens used for lighting a building outer glass wall. The LED lens comprises a lens body made from transparent materials. The lens body is formed by a first lens body and a second lens body, wherein the first lens body and the second lens body are formed in an integrated mode. The center axis of the first lens body coincides with the center axis of the second lens body; an accommodating space of an LED light source is arranged in the first lens body, wherein the first lens body and the LED light source are coaxial; a protruding incident plane is arranged in the accommodating space, wherein the accommodating space and the incident plane are coaxial; the side face of the first lens body is total-reflecting surface protruding outwards, and the total-reflecting surface is a composite Bessel curved surface; the face, opposite to the incident plane, of the second lens body is a protruding emergent plane. LEDs in various colors are used as a light source and matched with the LED lens, the light rays of the LEDs only illuminate the transparent glass wall, and the light rays which illuminate inside and outside the glass wall are few. Therefore, light pollution is effectively avoided, commercial effects are achieved, and meanwhile illuminating efficiency is enhanced.
Description
Technical field
The present invention relates to a kind of LED lens, relate in particular to a kind of glass of building exterior wall illuminating LED lens.
Background technology
Along with the needs of development and the view brightening of urban construction, increasing luxurious hotel, market, stadiums have adopted clear glass body of wall.Architect can adopt various lighting means, makes these clear glass bodies of wall at night, radiate bright brilliance, to building, gives a kind of important business and visual effect.But light is when illuminating glass wall, also there is a large amount of light to be irradiated to outside glass wall and in glass wall, cause serious light pollution.Light pollution can cause that people's giddy is vexed, depressed and health is weak.At present, big city is general, excessive use light, and some strong beam even soars up to the sky, and makes night as daytime, i.e. so-called artificial daytime.The light of scattering makes sky too bright, cannot see star, has also affected astronomical observation, aviation etc., and therefore a lot of observatories are forced to quit work.
The general lighting source adopting is LED light source now, in order to reduce the scattering of LED light source itself, conventionally adopt LED lens to carry out secondary optics luminous intensity distribution to LED light source, making the hot spot that goes out to establish of LED is circular light spot, when emergent light is irradiated to when accepting face, still there is a large amount of light scatterings to indoor and day aerial.In order to make emergent light deflection be irradiated to the face of acceptance, improve illumination efficiency, less light pollution, CN201925856 carries out secondary optics luminous intensity distribution by LED lens by LED light source, the end face of scioptics body arranges corrugated striped, makes the emergent light of LED be refracted to by corrugated striped deflection the face of acceptance.But it only can make emergent light form vertical and horizontal centered by LED light source and be 20 degree with interior hot spot, although reduced the light pollution of certain limit, what it longitudinally irradiated is limited in scope, and is unfavorable for improving illumination efficiency.
Summary of the invention
The problem existing for above-mentioned prior art, the object of the invention is to provide a kind of glass of building exterior wall illuminating LED lens, and the present invention can adopt LED of all kinds to make light source, mixes lens of the present invention, effectively avoid generation light pollution, not only produced commercial effect but also improved illumination efficiency.
Technical scheme of the present invention is: a kind of glass of building exterior wall illuminating LED lens, comprise the lens body being formed by transparent material, described lens body is comprised of integrated first lens body and the second lenticular body, the central shaft of described first lens body and the second lenticular body overlaps, wherein, the accommodation space in first lens body with a LED light source coaxial with it, in this accommodation space, there is the protruding plane of incidence coaxial with it, the fully reflecting surface that first lens Ti side is outwardly convex, this fully reflecting surface is compound bezier surface; The second lenticular body face relative with the plane of incidence is protruding exit facet.
As preferably, the described plane of incidence and exit facet are all anamorphic aspherical surfaces, and described fully reflecting surface is enclosed and formed by two symmetrical directions X reflectings surface and two symmetrical Y-direction reflectings surface.
As preferably, the surface equation of the plane of incidence is:
The parameter of surface equation is as follows:
=-0.9~-1.1
=0.76~0.82
=0.015~0.025
=0.005~0.015
=-0.0001~-0.00015
The curved surface coefficient of directions X reflecting surface is:
F:1.8~2.2
R:9.5~10.5
S:14.5~15.5
P:0.3~0.5
W:0.45~0.55
The curved surface coefficient of Y-direction reflecting surface is:
F:2.0~3.0
R:0.5~0.7
S:17~18
P:0.8~1.0
W:0.5~0.7
The surface equation of exit facet is:
The parameter of surface equation is as follows:
=2.1e-7~2.6e-7
As preferably, the curve of light distribution of described lens body is the bat-wing of 76 degree * 7.5 degree.
As preferably, it is white light, ruddiness, blue light or the green light LED of 115 degree ~ 125 degree, 1W ~ 3W that the light source of lens body is used beam angle.
As preferably, the length A of lens body is 26 ~ 27.15 millimeters, and width B is 13 ~ 14.5 millimeters, and height C is 13.5 ~ 14 millimeters.
As preferably, the end face of the plane of incidence is 11.5 ~ 12 millimeters to the distance D of exit facet end face.
As preferably, the diameter dimension E of the accommodation space of LED light source is 3.5 ~ 4.14 millimeters.
As preferably, the both sides of lens body are provided with mounting structure, and installing hole is set on mounting structure.
As preferably, the material of lens body is PC or PMMA optical plastic.
The invention has the beneficial effects as follows: 1. the effect of lens of the present invention is the light that makes LED, can only illuminate transparent glass wall, it is outer and within the walls that light seldom shines wall, neither can cause to urban environment " light pollution ", can not cause interference to people's work and life within the walls, and improve illumination efficiency yet; 2. lens of the present invention adopt two refraction curved surfaces and two reflecting curved surfaces, the refraction of scioptics and reflex, the LED light source 120 degree lambert formula curves of light distribution are become to longitudinal 76 degree, the bat-wing curve of light distribution of horizontal 7.5 degree, the circular illumination of LED light source is transformed into long and narrow field of illumination, has met the special lighting requirement of glass of building exterior wall; 3. lens of the present invention, when the projector distance of 2.5 meters, irradiation area is 3.6 meters * 0.36 meter, illumination uniformity can be greater than 0.37; 4. lens of the present invention, its optical efficiency can be greater than 98%; 5. lens volume of the present invention is little; 6. lens of the present invention, by mounting structure, can be realized the accurate location with LED.
Accompanying drawing explanation
Fig. 1 is main cutaway view of the present invention;
Fig. 2 is left view of the present invention;
Fig. 3 is right view of the present invention;
Fig. 4 is the curve of light distribution of the present invention.
In figure: 1, lens body; 2, pin is installed; 3, LED light source; 11, first lens body; 12, the second lenticular body; 21, installing hole; S1, the plane of incidence; S2, directions X reflecting surface; S3, Y-direction reflecting surface; S4, exit facet.
The specific embodiment
Embodiment 1: as shown in Figure 1, Figure 2 and Figure 3, a kind of glass of building exterior wall illuminating LED lens, comprise the lens body 1 being formed by PC or PMMA optical plastic, it is white light, ruddiness, blue light or the green light LED of 115 degree ~ 125 degree, 1W ~ 3W that the light source of lens body 1 can be used beam angle.In the present embodiment, selecting optic angle is the LED light source 3 of 120 degree.
Described lens body 1 is comprised of integrated first lens body 11 and the second lenticular body 12, the central shaft of described first lens body 11 and the second lenticular body 12 overlaps, wherein, the accommodation space in first lens body 11 with a LED light source 3 coaxial with it, in this accommodation space, there is the protruding plane of incidence S1 coaxial with it, the fully reflecting surface that first lens Ti11 side is outwardly convex, this fully reflecting surface is by two symmetrical directions X reflecting surface S2 and two symmetrical Y-direction reflecting surface S3, to enclose the compound bezier surface forming (Bei Saier curved surface refers to that a Bei Saier curve rotates the curved surface forming around z axis.When this curve is when X-direction is identical with Y direction, be called Bei Saier curved surface.When this curve when incomplete same, is called compound Bei Saier curved surface in X-direction and Y direction.）。
Following (the coefficient of following compound Bei Saier curved surface of curved surface coefficient of described fully reflecting surface, in Lighting Design software, be known, according to the data of these coefficients, by Lighting Design software Light Tools7.2, just can automatically generate the Bei Saier curved surface according to these coefficients.）：
Wherein, the curved surface coefficient of directions X reflecting surface S2 is:
F:1.8~2.2
R:9.5~10.5
S:14.5~15.5
P:0.3~0.5
W:0.45~0.55
The curved surface coefficient of Y-direction reflecting surface S3 is:
F:2.0~3.0
R:0.5~0.7
S:17~18
P:0.8~1.0
W:0.5~0.7
The second lenticular body 12 face relative with plane of incidence S1 is protruding exit facet S4.Described plane of incidence S1 and exit facet S4 are all that (aspheric surface refers to that the polynomial curve that an independent variable is Y rotates the curved surface forming around z axis to anamorphic aspherical surface.When this curve is when X-direction is identical with Y direction, be called aspheric surface.When this curve when incomplete same, is called anamorphic aspherical surface in X-direction and Y direction.）。
The surface equation of plane of incidence S1 is:
The parameter of surface equation is as follows:
=0.005~0.015
The surface equation of exit facet S4 is:
The parameter of surface equation is as follows:
=0.03~0.05
=24~25
=-1.6e-9~-1.9e-9
The length A of lens body 1 is 26 ~ 27.15 millimeters, in the present embodiment, get 27.15 millimeters, width B is 13 ~ 14.5 millimeters, in the present embodiment, get 14.5 millimeters, height C is 13.5 ~ 14 millimeters, gets 14 millimeters in the present embodiment, the end face of plane of incidence S1 is 11.5 ~ 12 millimeters to the distance D of exit facet S4 end face, in the present embodiment, get 12 millimeters, the diameter dimension E of the accommodation space of LED light source 3 is 3.5 ~ 4.14 millimeters, gets 4.14 millimeters in the present embodiment.
The both sides of lens body 1 are provided with mounting structure, and described mounting structure is two installation pins 2 that lay respectively at two directions X reflecting surface S2 outsides, installs on pin 2 and is provided with installing hole 21.Lens body 1 is fixed on the aluminium base that is welded with LED light source 3 through the installing hole 21 that pin 2 is installed by the screw of 2 M2.5.LED light source 3 is positioned at the plane of incidence S1 center of lens body 1, the mounting plane of LED light source 3 is higher than the mounting plane that pin 2 is installed, the mounting plane of LED light source 3 is 0.07 ~ 0.15 millimeter with the difference in height F that the mounting plane of pin 2 is installed, in the present embodiment, get 0.15 millimeter, by the accuracy guarantee LED light source 3 of installing hole 21 on pin 2 and the optical axis coincidence of lens body 1 are installed.
The present invention is the refraction action of the anamorphic aspherical surface by plane of incidence S1 first, and by the LED light source of the 120 degree angles of emergence 3, the curve of light distribution being distributed by lambert's type, tentatively converts the different curve of light distribution in XY light-emitting directions angle of rectangle projected area to; Then by the light through plane of incidence S1 refraction, after the reflection by directions X reflecting surface S2 and Y-direction reflecting surface S3, project exactly longitudinally (directions X) 76 degree, laterally (Y-direction) is the long and narrow bar shaped irradiation area of 7.5 degree; Finally, by the anamorphic aspherical surface refraction action of exit facet S4, effectively eliminate light in the total reflection that longitudinally (directions X) 76 spent in directions, made the light of LED light source 3, projected to greatest extent effective irradiation area.Improved the optical efficiency of lens body 1, meanwhile, the optimization of the anamorphic aspherical surface equation parameter by exit facet S4, has improved the uniformity of effective irradiation area illumination.
As shown in Figure 4, the present invention adopts two refraction curved surfaces and two reflecting curved surfaces, and the refraction of scioptics and reflex become the 120 degree lambert formula curves of light distribution of LED light source 3 into longitudinal 76 degree, the bat-wing curve of light distribution of horizontal 7.5 degree.The circular illumination of LED light source 3 is transformed into long and narrow field of illumination, and its optical efficiency can be greater than 98%, has met the special lighting requirement of glass of building exterior wall.Lens of the present invention, when the projector distance of 2.5 meters, irradiation area is 3.6 meters of X0.36 rice, illumination uniformity can be greater than 0.37.
Embodiment 2: the length A of lens body 1 is 26 millimeters, width B is 13 millimeters, height C is 13.5 ~ 14 millimeters, the end face of plane of incidence S1 is 11.5 millimeters to the distance D of exit facet S4 end face, the diameter dimension E of the accommodation space of LED light source 3 is 3.5 millimeters, and the mounting plane of LED light source 3 is 0.07 millimeter with the difference in height F that the mounting plane of pin 2 is installed.All the other are identical with embodiment 1.
Claims (10)
1. glass of building exterior wall illuminating LED lens, comprise the lens body being formed by transparent material, it is characterized in that: described lens body is comprised of integrated first lens body and the second lenticular body, the central shaft of described first lens body and the second lenticular body overlaps, wherein, the accommodation space in first lens body with a LED light source coaxial with it, in this accommodation space, there is the protruding plane of incidence coaxial with it, the fully reflecting surface that first lens Ti side is outwardly convex, this fully reflecting surface is compound bezier surface; The second lenticular body face relative with the plane of incidence is protruding exit facet.
2. a kind of glass of building exterior wall illuminating LED lens according to claim 1, it is characterized in that: the described plane of incidence and exit facet are all anamorphic aspherical surfaces, described fully reflecting surface is enclosed and is formed by two symmetrical directions X reflectings surface and two symmetrical Y-direction reflectings surface.
3. a kind of glass of building exterior wall illuminating LED lens according to claim 2, is characterized in that: the surface equation of the plane of incidence is:
The parameter of surface equation is as follows:
The curved surface coefficient of directions X reflecting surface is:
F:1.8~2.2
R:9.5~10.5
S:14.5~15.5
P:0.3~0.5
W:0.45~0.55
The curved surface coefficient of Y-direction reflecting surface is:
F:2.0~3.0
R:0.5~0.7
S:17~18
P:0.8~1.0
W:0.5~0.7
The surface equation of exit facet is:
The parameter of surface equation is as follows:
4. a kind of glass of building exterior wall illuminating LED lens according to claim 3, is characterized in that: the curve of light distribution of described lens body is the bat-wing of 76 degree * 7.5 degree.
5. a kind of glass of building exterior wall illuminating LED lens according to claim 4, is characterized in that: it is white light, ruddiness, blue light or the green light LED of 115 degree ~ 125 degree, 1W ~ 3W that the light source of lens body is used beam angle.
6. according to a kind of glass of building exterior wall illuminating LED lens described in claim 1,2,3,4 or 5, it is characterized in that: the length A of lens body is 26 ~ 27.15 millimeters, width B is 13 ~ 14.5 millimeters, and height C is 13.5 ~ 14 millimeters.
7. a kind of glass of building exterior wall illuminating LED lens according to claim 6, is characterized in that: the end face of the plane of incidence is 11.5 ~ 12 millimeters to the distance D of exit facet end face.
8. a kind of glass of building exterior wall illuminating LED lens according to claim 7, is characterized in that: the diameter dimension E of the accommodation space of LED light source is 3.5 ~ 4.14 millimeters.
9. a kind of glass of building exterior wall illuminating LED lens according to claim 8, is characterized in that: the both sides of lens body are provided with mounting structure, and installing hole is set on mounting structure.
10. a kind of glass of building exterior wall illuminating LED lens according to claim 9, is characterized in that: the material of lens body is PC or PMMA optical plastic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210198163.6A CN103511976A (en) | 2012-06-15 | 2012-06-15 | LED lens used for lighting building outer glass wall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210198163.6A CN103511976A (en) | 2012-06-15 | 2012-06-15 | LED lens used for lighting building outer glass wall |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103511976A true CN103511976A (en) | 2014-01-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210198163.6A Pending CN103511976A (en) | 2012-06-15 | 2012-06-15 | LED lens used for lighting building outer glass wall |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105372802A (en) * | 2014-08-26 | 2016-03-02 | 现代摩比斯株式会社 | Optical structure for vehicle |
| CN108561850A (en) * | 2017-01-25 | 2018-09-21 | 佛山市中山大学研究院 | A kind of lateral broad illumination lens |
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| CN1864026A (en) * | 2003-12-10 | 2006-11-15 | 冈谷电机产业株式会社 | Indicator lamp |
| CN201561366U (en) * | 2009-10-19 | 2010-08-25 | 深圳市俄菲照明有限公司 | Led light source and lens thereof |
| CN201568893U (en) * | 2009-12-25 | 2010-09-01 | 深圳市邦贝尔电子有限公司 | LED road lamp and lens thereof |
| CN101900293A (en) * | 2010-07-30 | 2010-12-01 | 海洋王照明科技股份有限公司 | Condenser lens and lamp using same |
| CN202835179U (en) * | 2012-06-15 | 2013-03-27 | 四川锦明光电股份有限公司 | Light-Emitting Diode (LED) lens used for building glass outer wall lighting |
-
2012
- 2012-06-15 CN CN201210198163.6A patent/CN103511976A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1864026A (en) * | 2003-12-10 | 2006-11-15 | 冈谷电机产业株式会社 | Indicator lamp |
| CN201561366U (en) * | 2009-10-19 | 2010-08-25 | 深圳市俄菲照明有限公司 | Led light source and lens thereof |
| CN201568893U (en) * | 2009-12-25 | 2010-09-01 | 深圳市邦贝尔电子有限公司 | LED road lamp and lens thereof |
| CN101900293A (en) * | 2010-07-30 | 2010-12-01 | 海洋王照明科技股份有限公司 | Condenser lens and lamp using same |
| CN202835179U (en) * | 2012-06-15 | 2013-03-27 | 四川锦明光电股份有限公司 | Light-Emitting Diode (LED) lens used for building glass outer wall lighting |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105372802A (en) * | 2014-08-26 | 2016-03-02 | 现代摩比斯株式会社 | Optical structure for vehicle |
| CN108561850A (en) * | 2017-01-25 | 2018-09-21 | 佛山市中山大学研究院 | A kind of lateral broad illumination lens |
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Effective date of abandoning: 20170721 |