CN202012853U - Beam angle adjustment lens group for LED (light-emitting diode) light source - Google Patents
Beam angle adjustment lens group for LED (light-emitting diode) light source Download PDFInfo
- Publication number
- CN202012853U CN202012853U CN2011201113850U CN201120111385U CN202012853U CN 202012853 U CN202012853 U CN 202012853U CN 2011201113850 U CN2011201113850 U CN 2011201113850U CN 201120111385 U CN201120111385 U CN 201120111385U CN 202012853 U CN202012853 U CN 202012853U
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- China
- Prior art keywords
- collector lens
- beam angle
- center
- quadratic
- satisfies equation
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Abstract
The utility model relates to the technology of beam angle adjustment of an LED (light-emitting diode) stage lighting lamp and discloses a beam angle adjustment lens group for an LED light source. The beam angle adjustment lens group comprises a first condenser lens and a second condenser lens; the beam angle adjustment lens group is characterized in that: the curved surfaces of the first condenser lens and the second condenser lens are combination of a quadratic surface. In the utility model, the biggest beam angle change can be realized through the shortest moving distance of the second condenser lens, so that as much light energy as possible of the LED light source with 50 percent of beam angles from 140 degrees to 180 degrees can pass through the first condenser lens and is emitted from the second condenser lens, the light emitting efficiency and the light energy utilization are improved, the aggregation of light in the lamp can be reduced, and temperature rise of the lamp, caused by low light energy utilization, is prevented.
Description
Technical field
The utility model 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.
The utility model content
The utility model is at the deficiencies in the prior art, provides 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.
The technical solution of the utility model 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 utility model 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 utility model makes second collector lens move minimum distance, realizes that maximum beam angle changes;
(2) the utility model makes beam angle (50%) 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 utility model 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 utility model 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
Below in conjunction with drawings and Examples the utility model is described in further detail, but embodiment of the present utility model is 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 |
|---|---|---|---|
| CN2011201113850U CN202012853U (en) | 2011-04-15 | 2011-04-15 | Beam angle adjustment lens group for LED (light-emitting diode) light source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201113850U CN202012853U (en) | 2011-04-15 | 2011-04-15 | Beam angle adjustment lens group for LED (light-emitting diode) light source |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202012853U true CN202012853U (en) | 2011-10-19 |
Family
ID=44783469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201113850U Expired - Lifetime CN202012853U (en) | 2011-04-15 | 2011-04-15 | Beam angle adjustment lens group for LED (light-emitting diode) light source |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202012853U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102147098A (en) * | 2011-04-15 | 2011-08-10 | 暨南大学 | Light beam angle regulating lens group for LED light source |
| CN103672727A (en) * | 2012-09-24 | 2014-03-26 | 黄国进 | Full-effect light harvesting method |
| CN104329599A (en) * | 2014-10-17 | 2015-02-04 | 东莞勤上光电股份有限公司 | Bar-shaped LED (light-emitting diode) lamp and bar-shaped lens |
| CN104676482A (en) * | 2013-11-29 | 2015-06-03 | 海洋王（东莞）照明科技有限公司 | Lens and light source module with same |
| CN108414487A (en) * | 2018-03-08 | 2018-08-17 | 北京航空航天大学 | A kind of optical collection method and system for solid outgoing fluorescence |
| CN112954846A (en) * | 2021-02-09 | 2021-06-11 | 天津九安医疗电子股份有限公司 | Method and system for quickly and quantitatively adjusting beam angle of lighting device |
| US11054108B2 (en) | 2017-01-17 | 2021-07-06 | Signify Holding B.V. | Adjustable spot light position generation |
-
2011
- 2011-04-15 CN CN2011201113850U patent/CN202012853U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102147098A (en) * | 2011-04-15 | 2011-08-10 | 暨南大学 | Light beam angle regulating lens group for LED light source |
| CN102147098B (en) * | 2011-04-15 | 2013-01-02 | 暨南大学 | Light beam angle regulating lens group for LED light source |
| CN103672727A (en) * | 2012-09-24 | 2014-03-26 | 黄国进 | Full-effect light harvesting method |
| CN104676482A (en) * | 2013-11-29 | 2015-06-03 | 海洋王（东莞）照明科技有限公司 | Lens and light source module with same |
| CN104329599A (en) * | 2014-10-17 | 2015-02-04 | 东莞勤上光电股份有限公司 | Bar-shaped LED (light-emitting diode) lamp and bar-shaped lens |
| US11054108B2 (en) | 2017-01-17 | 2021-07-06 | Signify Holding B.V. | Adjustable spot light position generation |
| CN108414487A (en) * | 2018-03-08 | 2018-08-17 | 北京航空航天大学 | A kind of optical collection method and system for solid outgoing fluorescence |
| CN112954846A (en) * | 2021-02-09 | 2021-06-11 | 天津九安医疗电子股份有限公司 | Method and system for quickly and quantitatively adjusting beam angle of lighting device |
| CN112954846B (en) * | 2021-02-09 | 2021-10-15 | 天津九安医疗电子股份有限公司 | Method and system for quickly and quantitatively adjusting beam angle of lighting device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20111019 Effective date of abandoning: 20130227 |
|
| RGAV | Abandon patent right to avoid regrant |