CN102147098A - Light beam angle regulating lens group for LED light source - Google Patents
Light beam angle regulating lens group for LED light source Download PDFInfo
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- CN102147098A CN102147098A CN2011100949234A CN201110094923A CN102147098A CN 102147098 A CN102147098 A CN 102147098A CN 2011100949234 A CN2011100949234 A CN 2011100949234A CN 201110094923 A CN201110094923 A CN 201110094923A CN 102147098 A CN102147098 A CN 102147098A
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- collector lens
- beam angle
- center
- quadratic
- satisfies equation
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Abstract
The invention relates to a light beam angle regulating technology of LED stage illuminating lamps, and discloses a light beam angle regulating lens group for an LED light source, which comprises a first collector lens and a second collector lens. The light beam angle regulating lens group is characterized in that curved surfaces of the first collector lens and the second collector lens are combined quadratic surfaces. The invention ensures that the second collector lens moves for a minimum distance for realizing maximum light beam angle change and more light energy of the LED light source with a light beam angle (50 percent) of 140-180 DEG passes through the first collector lens and exits from the second collector lens, thereby increasing light-exiting efficiency and light energy utilization, reducing collection of light in the lamp, and decreasing temperature rise of the lamp, caused by low light energy utilization rate.
Description
Technical field
The present invention relates to the beam angle adjustment technology of LED area source and array LED stage illumination, lighting lamp, specifically is that a kind of beam angle that is used for led light source is adjusted set of lenses.
Background technology
When making the great power LED stage lighting, need be on one's body or make the whole stage of light lumine, this moment just need to adjust the emerging beam angle of LED area source or array LED light source with light focusing to a performer.
Grant number is the Chinese utility model patent of CN201502956U, discloses a kind of optical system of computer Adjustable head lamp.This system comprises lamp pearl, first collector lens, second collector lens, pattern segments, color chips, imaging len, prism, focusing lens.In this optical system, only the imaging clear-cut is improved, do not mention for the adjustment of the beam angle of light source bright dipping.
Summary of the invention
The present invention is directed to the deficiencies in the prior art, provide a kind of beam angle that is used for led light source to adjust set of lenses, thereby when the LED beam angle (50%) that uses during at 140 °～180 °, the LED stage lighting still can be realized the convenient adjustment of beam angle.
Technical scheme of the present invention is:
The beam angle that is used for led light source is adjusted set of lenses, comprises first collector lens and second collector lens, and the curved surface of first collector lens, second collector lens all is quadric combination.Quadratic surface comprises sphere, ellipsoid, parabola, hyperboloid etc.Compound mode comprises:
1) center of surface is a kind of quadratic surface, and curved edges is another kind of quadratic surface, and two kinds of quadratic surfaces are in the smooth linking in distance center of surface 1/4～3/4 place.2) center of surface is a kind of quadratic surface, second kind of quadratic surface of smooth linking at 1/4～1/2 place, and second kind of quadratic surface is at the third quadratic surface of the smooth linking in 1/2～3/4 place.
First collector lens is between the LED lamp and second collector lens, and effectively logical light diameter is 8～20mm, with the distance of LED lamp be 0～4mm, with the distance of second collector lens be 0～14mm.
Second collector lens is a luminous lens, and effectively logical light diameter is 20～30mm.In the change procedure of beam angle, the displacement of second collector lens is 0～14mm, and the excursion of beam angle (50%) is 6 °～48 °.
Further, the quadratic surface compound mode of first collector lens, second collector lens, the beam angle of looking the LED that uses is different and different.
Further, first collector lens comprises first incidence surface that is connected successively, the bottom surface, first lateral surface and first exiting surface, the bottom surface is an annulus, and vertical with optical axis, first lateral surface 5 is a taper seat, with the bottom surface angle be 100～138 °; First incidence surface is combined by three quadratic surfaces, and the center is a hyperboloid, satisfies equation: x
2+ y
2+ 60Z-3z
2=0, the periphery is parabolic, satisfies equation: x
2+ y
2+ 65Z=0 is connected by ellipsoid between center and the periphery, and this ellipsoid satisfies equation: x
2+ y
2+ 56Z-1.8z
2=0; First exiting surface is combined by three quadratic surfaces, and the center is a sphere, satisfies equation: x
2+ y
2+ 14Z-z
2=0, the periphery is parabolic, satisfies equation: x
2+ y
2+ 15Z=0 is connected by ellipsoid between center and the periphery, and this ellipsoid satisfies equation: x
2+ y
2+ 20Z-1.8z
2=0; Second collector lens comprises second incidence surface that is connected successively, second lateral surface and second exiting surface, second lateral surface are and the taper seat of optical axis included angle greater than 42 ° that second incidence surface is combined by three quadratic surfaces, the center is a hyperboloid, satisfies equation: x
2+ y
2+ 200Z-3z
2=0, the periphery is parabolic, satisfies equation: x
2+ y
2+ 225Z=0 is connected by ellipsoid between center and the periphery, and this ellipsoid satisfies equation: x
2+ y
2+ 180Z-1.8z
2=0; Second exiting surface is combined by three quadratic surfaces, and the center is a sphere, satisfies equation: x
2+ y
2+ 25Z-z
2=0, the periphery is parabolic, satisfies equation, x
2+ y
2+ 18Z=0 is connected by ellipsoid between center and the periphery, and this ellipsoid satisfies equation: x
2+ y
2+ 20Z-1.8z
2=0.
Further, first incidence surface, first exiting surface, second incidence surface and second exiting surface plating anti-reflection film, transmitance is greater than 98%, bottom surface, first lateral surface and the second lateral surface plating total reflection film, reflectivity is greater than 98%.
The present invention compared with prior art has following advantage and beneficial effect:
(1) for beam angle (50%) 140 °～180 ° (2 * light intensity value be the axial strength value half direction and light-emitting axis to angle) LED area source and array LED light source, the invention enables second collector lens to move minimum distance, realize that maximum beam angle changes;
(2) the invention enables beam angle (50%) to pass through first collector lens 140 °～180 ° LED area source and array LED light source light energy as much as possible, and from the second collector lens outgoing, the light extraction efficiency and the efficiency of light energy utilization have been improved, reduced the gathering of light in light fixture, reduced light fixture because the low temperature that causes of the efficiency of light energy utilization raises;
(3) the existing employed LED angle of divergence of LED stage lighting majority is less than 140 degree, the appearance and size of LED also less than 6mm * 6mm or diameter less than 8.5mm.In fact, the high-power LED angle of divergence is greater than 140 ° because power is big, so appearance and size also greater than 6mm * 6mm or diameter greater than 8.5mm.The present invention is primarily aimed at this high-power LED.
Description of drawings
Fig. 1 is for realizing the schematic diagram of first collector lens of the present invention and second collector lens.
Among the figure, 1:LED; 2: the first collector lenses; 3: the second collector lenses; 4: the first collector lens bottom surfaces; 5: the first collector lens lateral surfaces; 6: the first collector lens incidence surfaces; 7: the first collector lens exiting surfaces; 8: the second collector lens incidence surfaces; 9: the second collector lens exiting surfaces; 10: the second collector lens lateral surfaces.
The specific embodiment
The present invention is described in further detail below in conjunction with drawings and Examples, but embodiments of the present invention are not limited thereto.
Embodiment
As shown in Figure 1, a kind of based on quadric stage lighting light beam angle adjustment lens that are used for LED area source and array LED light source, the appearance and size of LED 1 is greater than 6mm * 6mm, less than 10 mm * 10mm, or diameter is greater than 8.5mm, less than 14mm, and the luminous beam angle of LED1 is 140 °～180 °.
First collector lens, 2 effectively logical light diameters are 8mm～20mm.The first collector lens incidence surface 6 of first collector lens 2 is 0mm-4mm with the distance of LED light output surface.
The first collector lens bottom surface 4 is positioned on the fixing circuit board of LED welding.Guarantee that the light that LED1 sends can all enter the first collector lens incidence surface 6.The first collector lens bottom surface, 4 internal diameters are 8mm～14mm.
The first collector lens lateral surface 5 is and the taper seat of the first collector lens bottom surface, 4 angles less than 48 ° (acute angles).
The first collector lens incidence surface 6 and the first collector lens bottom surface, 4 angles are smaller or equal to 28 ° (acute angles).The center of the first collector lens incidence surface 6 is hyperboloid (x
2+ y
2+ 60Z-3z
2=0), its periphery is parabolic (x
2+ y
2+ 65Z=0), between center and the periphery by ellipsoid (x
2+ y
2+ 56Z-1.8z
2=0) connects.The center of the first collector lens exiting surface 7 is sphere (x
2+ y
2+ 14Z-z
2=0), its periphery is parabolic (x
2+ y
2+ 15Z=0), between center and the periphery by ellipsoid (x
2+ y
2+ 20Z-1.8z
2=0) connects.
Light sends from LED, enter the first collector lens incidence surface 6, through the refraction of the first collector lens incidence surface 6,5 reflections of the first collector lens lateral surface (beam angle is less than 120 ° light, directly the directive first collector lens exiting surface 7), from the refraction outgoing of the first collector lens exiting surface 7.90% light that LED sends through beam angle after the refraction of first collector lens 2 less than 60 °.
The first collector lens incidence surface 6 and the first collector lens exiting surface, 7 plating anti-reflection films, transmitance is greater than 98%.The first collector lens bottom surface 4 and the first collector lens lateral surface, 5 plating total reflection films, reflectivity is greater than 98%.
Second collector lens, 3 effectively logical light diameters are 20mm～30mm.The second collector lens incidence surface 8 of second collector lens 3 and the distance of the first collector lens exiting surface 7 are 0mm-14mm.
Second collector lens, 3 removable 0mm-14mm.When the distance of the second collector lens incidence surface 8 and the first collector lens exiting surface 7 was 0mm, stage lighting light beam angle (50%) was 48 °; When the distance of the second collector lens incidence surface 8 and the first collector lens exiting surface 7 was 14mm, stage lighting light beam angle (50%) was 6 °.When the distance when the second collector lens incidence surface 8 and the first collector lens exiting surface 7 changed between 0mm-14mm continuously, stage lighting light beam angle (50%) changed between 6 °-48 ° continuously.
The second collector lens lateral surface 10 is and the taper seat of the second collector lens optical axis included angle greater than 42 °.
The center of the second collector lens incidence surface 8 is hyperboloid (x
2+ y
2+ 200Z-3z
2=0), its periphery is parabolic (x
2+ y
2+ 225Z=0), between center and the periphery by ellipsoid (x
2+ y
2+ 180Z-1.8z
2=0) connects; The center of the second collector lens exiting surface 9 is sphere (x
2+ y
2+ 25Z-z
2=0), its periphery is parabolic (x
2+ y
2+ 18Z=0), between center and the periphery by ellipsoid (x
2+ y
2+ 20Z-1.8z
2=0) connects.
Light goes out to inject second collector lens 3 from the first collector lens exiting surface 7.60%---90% light through beam angle after the refraction of second collector lens 3 between 6 °-48 °.
The second collector lens incidence surface 8 and the second collector lens exiting surface, 9 plating anti-reflection films, transmitance is greater than 98%.The second collector lens lateral surface, 10 plating total reflection films, reflectivity is greater than 98%.
For the array LED lamp, first collector lens will be lined up the array identical with the LED lamp with second collector lens.Greater than 10 mm * 10mm or the diameter LED greater than 14mm, the size of first collector lens 2 and second collector lens 3 must correspondingly strengthen for appearance and size.
The incidence surface of first collector lens, second collector lens and exiting surface equation can also reach the purpose that changes the luminous beam angle of LED after the modification.Here enumerate no longer one by one.
Claims (7)
1. the beam angle that is used for led light source is adjusted set of lenses, comprises first collector lens and second collector lens, and it is characterized in that: the curved surface of first collector lens, second collector lens all is quadric combination.
2. beam angle according to claim 1 is adjusted set of lenses, and it is characterized in that: described quadratic surface comprises sphere, ellipsoid, parabola and hyperboloid.
3. beam angle according to claim 1 and 2 is adjusted set of lenses, it is characterized in that: the mode of quadric combination is: center of surface is a kind of quadratic surface, curved edges is another kind of quadratic surface, and two kinds of quadratic surfaces are in the smooth linking in distance center of surface 1/4～3/4 place.
4. beam angle according to claim 1 and 2 is adjusted set of lenses, it is characterized in that: the mode of quadric combination is: center of surface is a kind of quadratic surface, second kind of quadratic surface of smooth linking at 1/4～1/2 place, second kind of quadratic surface is at the third quadratic surface of the smooth linking in 1/2～3/4 place.
5. beam angle according to claim 1 is adjusted set of lenses, it is characterized in that: first collector lens and the second collector lens common optical axis, first collector lens effectively to lead to the light diameter be 8～20mm, with the distance of second collector lens be that 0～14mm is adjustable; Second collector lens is a luminous lens, and effectively logical light diameter is 20～30mm.
6. beam angle according to claim 5 is adjusted set of lenses, it is characterized in that: first collector lens comprises first incidence surface that is connected successively, the bottom surface, first lateral surface and first exiting surface, the bottom surface is an annulus, and vertical with optical axis, first lateral surface 5 is a taper seat, with the bottom surface angle be 100～138 °; First incidence surface is combined by three quadratic surfaces, and the center is a hyperboloid, satisfies equation: x
2+ y
2+ 60Z-3z
2=0, the periphery is parabolic, satisfies equation: x
2+ y
2+ 65Z=0 is connected by ellipsoid between center and the periphery, and this ellipsoid satisfies equation: x
2+ y
2+ 56Z-1.8z
2=0; First exiting surface is combined by three quadratic surfaces, and the center is a sphere, satisfies equation: x
2+ y
2+ 14Z-z
2=0, the periphery is parabolic, satisfies equation: x
2+ y
2+ 15Z=0 is connected by ellipsoid between center and the periphery, and this ellipsoid satisfies equation: x
2+ y
2+ 20Z-1.8z
2=0; Second collector lens comprises second incidence surface that is connected successively, second lateral surface and second exiting surface, second lateral surface are and the taper seat of optical axis included angle greater than 42 ° that second incidence surface is combined by three quadratic surfaces, the center is a hyperboloid, satisfies equation: x
2+ y
2+ 200Z-3z
2=0, the periphery is parabolic, satisfies equation: x
2+ y
2+ 225Z=0 is connected by ellipsoid between center and the periphery, and this ellipsoid satisfies equation: x
2+ y
2+ 180Z-1.8z
2=0; Second exiting surface is combined by three quadratic surfaces, and the center is a sphere, satisfies equation: x
2+ y
2+ 25Z-z
2=0, the periphery is parabolic, satisfies equation, x
2+ y
2+ 18Z=0 is connected by ellipsoid between center and the periphery, and this ellipsoid satisfies equation: x
2+ y
2+ 20Z-1.8z
2=0.
7. beam angle according to claim 6 is adjusted set of lenses, it is characterized in that: first incidence surface, first exiting surface, second incidence surface and second exiting surface plating anti-reflection film, transmitance is greater than 98%, bottom surface, first lateral surface and the second lateral surface plating total reflection film, and reflectivity is greater than 98%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100949234A CN102147098B (en) | 2011-04-15 | 2011-04-15 | Light beam angle regulating lens group for LED light source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100949234A CN102147098B (en) | 2011-04-15 | 2011-04-15 | Light beam angle regulating lens group for LED light source |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102147098A true CN102147098A (en) | 2011-08-10 |
| CN102147098B CN102147098B (en) | 2013-01-02 |
Family
ID=44421492
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100949234A Expired - Fee Related CN102147098B (en) | 2011-04-15 | 2011-04-15 | Light beam angle regulating lens group for LED light source |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102147098B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102606978A (en) * | 2012-02-27 | 2012-07-25 | 广东工业大学 | Device and method for implementing smallest output beam angle of LED light source |
| CN102734673A (en) * | 2012-06-26 | 2012-10-17 | 深圳市朗恒电子有限公司 | Light-emitting diode (LED) illumination module |
| CN104214672A (en) * | 2013-05-29 | 2014-12-17 | 林万炯 | Lens column and lighting system with same |
| CN106907593A (en) * | 2015-12-23 | 2017-06-30 | 欧普照明股份有限公司 | A kind of Optical devices and lighting device |
| CN110955083A (en) * | 2019-09-30 | 2020-04-03 | 厦门天马微电子有限公司 | Display device |
| CN113791515A (en) * | 2021-10-12 | 2021-12-14 | 威海华菱光电股份有限公司 | Light source device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101251611A (en) * | 2007-02-20 | 2008-08-27 | 赛克尼克斯股份有限公司 | Focusing lens for LED |
| US20100128233A1 (en) * | 2008-11-21 | 2010-05-27 | Hong Kong Applied Science And Technology Research Institute | Led light shaping device and illumination system |
| CN202012853U (en) * | 2011-04-15 | 2011-10-19 | 暨南大学 | Beam angle adjustment lens group for LED (light-emitting diode) light source |
-
2011
- 2011-04-15 CN CN2011100949234A patent/CN102147098B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101251611A (en) * | 2007-02-20 | 2008-08-27 | 赛克尼克斯股份有限公司 | Focusing lens for LED |
| US20100128233A1 (en) * | 2008-11-21 | 2010-05-27 | Hong Kong Applied Science And Technology Research Institute | Led light shaping device and illumination system |
| CN202012853U (en) * | 2011-04-15 | 2011-10-19 | 暨南大学 | Beam angle adjustment lens group for LED (light-emitting diode) light source |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102606978A (en) * | 2012-02-27 | 2012-07-25 | 广东工业大学 | Device and method for implementing smallest output beam angle of LED light source |
| CN102606978B (en) * | 2012-02-27 | 2014-11-05 | 广东工业大学 | Device and method for implementing smallest output beam angle of LED light source |
| CN102734673A (en) * | 2012-06-26 | 2012-10-17 | 深圳市朗恒电子有限公司 | Light-emitting diode (LED) illumination module |
| CN102734673B (en) * | 2012-06-26 | 2014-08-13 | 深圳市朗恒电子有限公司 | Light-emitting diode (LED) illumination module |
| CN104214672A (en) * | 2013-05-29 | 2014-12-17 | 林万炯 | Lens column and lighting system with same |
| CN104214672B (en) * | 2013-05-29 | 2018-01-05 | 赛尔富电子有限公司 | A kind of lens post and the illuminator using the lens post |
| CN106907593A (en) * | 2015-12-23 | 2017-06-30 | 欧普照明股份有限公司 | A kind of Optical devices and lighting device |
| CN110955083A (en) * | 2019-09-30 | 2020-04-03 | 厦门天马微电子有限公司 | Display device |
| CN110955083B (en) * | 2019-09-30 | 2022-10-11 | 厦门天马微电子有限公司 | Display device |
| CN113791515A (en) * | 2021-10-12 | 2021-12-14 | 威海华菱光电股份有限公司 | Light source device |
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| CN102147098B (en) | 2013-01-02 |
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