CN102147098B - 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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- CN102147098B CN102147098B CN2011100949234A CN201110094923A CN102147098B CN 102147098 B CN102147098 B CN 102147098B CN 2011100949234 A CN2011100949234 A CN 2011100949234A CN 201110094923 A CN201110094923 A CN 201110094923A CN 102147098 B CN102147098 B CN 102147098B
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- collector lens
- beam angle
- satisfies equation
- center
- periphery
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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 a kind of beam angle for led light source is adjusted lens combination.
Background technology
When making high-power LED stage lamp, need to be with light focusing to a performer with it 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.
Grant number is the Chinese utility model patent of CN201502956U, discloses a kind of optical system of computer head moving lamp.This system comprises lamp pearl, the first collector lens, the 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 for led light source to adjust lens combination, 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 lens combination, comprises the first collector lens and the second collector lens, and the curved surface of the first collector lens, the second collector lens all is quadric combination.Quadric surface comprises sphere, ellipsoid, parabola, hyperboloid etc.Array mode comprises:
1) center of surface is a kind of quadric surface, and curved edges is another kind of quadric surface, and two kinds of quadric surfaces are in the smooth linking in distance center of surface 1/4～3/4 place.2) center of surface is a kind of quadric surface, and at 1/4～1/2 place smooth linking the second quadric surface, the second quadric surface is at the third quadric surface of the smooth linking in 1/2～3/4 place.
The first collector lens is between LED lamp and the second collector lens, and effectively logical light diameter is 8～20mm, with the distance of LED lamp be 0～4mm, with the distance of the second collector lens be 0～14mm.
The second collector lens is luminous lens, and effectively logical light diameter is 20～30mm.In the change procedure of beam angle, the displacement of the second collector lens is 0～14mm, and the variation range of beam angle (50%) is 6 °～48 °.
Further, the quadric surface array mode of the first collector lens, the second collector lens is different and different depending on the beam angle of use LED.
Further, the first collector lens comprises the first incidence surface that is connected successively, the bottom surface, the first lateral surface and the first exiting surface, the bottom surface is an annulus, and vertical with optical axis, the first lateral surface 5 is circular conical surface, with the bottom surface angle be 100～138 °; The first incidence surface is combined by three quadric surfaces, and the center is 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; The first exiting surface is combined by three quadric surfaces, and the center is 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; The second collector lens comprises the second incidence surface that is connected successively, the second lateral surface and the second exiting surface, the second lateral surface are and the circular conical surface of optical axis included angle greater than 42 ° that the second incidence surface is combined by three quadric surfaces, the center is 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; The second exiting surface is combined by three quadric surfaces, and the center is 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, the first incidence surface, the first exiting surface, the second incidence surface and the second exiting surface plating anti-reflection film, transmitance is greater than 98%, bottom surface, the 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 the second collector lens to move minimum distance, realize that maximum beam angle changes;
(2) the invention enables beam angle (50%) to pass through the first collector lens 140 °～180 ° LED area source and array LED light source luminous energy as much as possible, and from the second collector lens outgoing, light extraction efficiency and the efficiency of light energy utilization have been improved, reduce 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 physical dimension 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 large, so physical dimension also greater than 6mm * 6mm or diameter greater than 8.5mm.The present invention is mainly for this high-power LED.
Description of drawings
Fig. 1 is for realizing the schematic diagram of the first collector lens of the present invention and the 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.
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 to this.
Embodiment
As shown in Figure 1, a kind of based on quadric stage lighting light beam angle adjustment lens for LED area source and array LED light source, the physical dimension 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 °.
The first collector lens 2 effectively logical light diameters are 8mm～20mm.The first collector lens incidence surface 6 of the 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 circuit board that LED is welded and fixed.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 circular conical surface 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 less than 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 directive the 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 the 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%.
The second collector lens 3 effectively logical light diameters are 20mm～30mm.The second collector lens incidence surface 8 of the second collector lens 3 and the distance of the first collector lens exiting surface 7 are 0mm-14mm.
The 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 circular conical surface 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 the second collector lens 3 from the first collector lens exiting surface 7.60%---90% light through beam angle after the refraction of the 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, the first collector lens will be lined up the array identical with the LED lamp with the second collector lens.Greater than 10 mm * 10mm or the diameter LED greater than 14mm, the size of the first collector lens 2 and the second collector lens 3 must correspondingly strengthen for physical dimension.
The incidence surface of the first collector lens, the 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 (3)
1. the beam angle that is used for led light source is adjusted lens combination, comprise the first collector lens and the second collector lens, the curved surface of the first collector lens, the second collector lens all is quadric combination, it is characterized in that: the first collector lens comprises the first incidence surface that is connected successively, bottom surface, the first lateral surface and the first exiting surface, the bottom surface is an annulus, and vertical with optical axis, the first lateral surface (5) is circular conical surface, with the bottom surface angle be 100～138 °; The first incidence surface is combined by three quadric surfaces, and the center is 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; The first exiting surface is combined by three quadric surfaces, and the center is 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; The second collector lens comprises the second incidence surface that is connected successively, the second lateral surface and the second exiting surface, the second lateral surface are and the circular conical surface of optical axis included angle greater than 42 ° that the second incidence surface is combined by three quadric surfaces, the center is 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; The second exiting surface is combined by three quadric surfaces, and the center is 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.
2. beam angle according to claim 1 is adjusted lens combination, it is characterized in that: the first collector lens and the second collector lens common optical axis, the first collector lens effectively to lead to the light diameter be 8～20mm, with the distance of the second collector lens be that 0～14mm is adjustable; The second collector lens is luminous lens, and effectively logical light diameter is 20～30mm.
3. beam angle according to claim 2 is adjusted lens combination, it is characterized in that: the first incidence surface, the first exiting surface, the second incidence surface and the second exiting surface plating anti-reflection film, transmitance is greater than 98%, bottom surface, the 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 CN102147098A (en) | 2011-08-10 |
| CN102147098B true CN102147098B (en) | 2013-01-02 |
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| 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 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
| 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 |
| 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 |
Citations (2)
| 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 |
| CN202012853U (en) * | 2011-04-15 | 2011-10-19 | 暨南大学 | Beam angle adjustment lens group for LED (light-emitting diode) light source |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8061857B2 (en) * | 2008-11-21 | 2011-11-22 | Hong Kong Applied Science And Technology Research Institute Co. Ltd. | LED light shaping device and illumination system |
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2011
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Patent Citations (2)
| 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 |
| CN202012853U (en) * | 2011-04-15 | 2011-10-19 | 暨南大学 | Beam angle adjustment lens group for LED (light-emitting diode) light source |
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| CN102147098A (en) | 2011-08-10 |
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| C14 | Grant of patent or utility model | ||
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Granted publication date: 20130102 Termination date: 20150415 |
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