CN102121662A - Light synthesizing and condensing method for multiple LED (light-emitting diode) lamp beads of lamp capable of imaging - Google Patents
Light synthesizing and condensing method for multiple LED (light-emitting diode) lamp beads of lamp capable of imaging Download PDFInfo
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Abstract
The invention relates to a light synthesizing and condensing method for multiple LED (light-emitting diode) lamp beads of a lamp capable of imaging. In the condensing method, all the LED lamp beads are positioned in the same plane to form a planar light source; a first condensing mirror is arranged at the front of each LED lamp bead correspondingly; a second condensing mirror is arranged at the front of each first condensing mirror correspondingly; a third condensing mirror is arranged at the front of each second condensing mirror correspondingly; a fourth condensing mirror is arranged at the front of all the third condensing mirrors; after the light rays emitted from each LED lamp bead are condensed through the corresponding first, second and third condensing mirrors, the divergent angles of the light rays become smaller to form a beam of subparallel light; and a plurality of beams of subparallel light are mixed through the fourth condensing mirror simultaneously. In the light synthesizing and condensing method, the purpose of condensing 80% of light flux of the divergent light rays of single lamp bead into subparallel light rays with smaller divergent angles by using a lens combination with a shorter diameter can be achieved, and then the plurality of beams of subparallel light are focused near the focal point of the fourth condensing mirror through the fourth condensing mirror, so that the beam synthesis of the multiple lamp beads is further realized.
Description
Technical field
The present invention relates to the optically focused of LED, especially plane plurality of LEDs lamp pearl close the light concentrating method, be fit to the utilization of imaging light fixture.
Background technology
The focusing of light mainly needs two parts, the firstth, light source, the secondth, focusing arrangement.The light concentrating method that closes of existing plurality of LEDs generally is that the lighting angle of each the LED lamp pearl by changing led light source achieves the goal, and is a kind of LED focusing arrangement of 201575340U as the Chinese patent publication number, comprises base, plural LED lamp; The LED lamp comprises led light source, equipped lens, lens mount and thermal column, and led light source is installed in an end of thermal column, and equipped lens are installed in the place ahead of led light source and wrap up led light source, and equipped lens scioptics frame is installed on the thermal column; The LED lamp is installed on the base by thermal column, and base is the arc knee-piece, and the LED lamp is installed on the arc knee-piece.In the above-mentioned imaging device, led light source is mounted on the arc knee-piece, relies on the angle of arc knee-piece that the light that the LED lamp sends is carried out polymerization, thereby reaches the effect of optically focused.There is following shortcoming in this kind imaging device: the arc knee-piece difficulty of processing as a light source part is big, the schedule requirement height; Installation accuracy requires high; In case the machine-shaping of knee-piece cambered surface, the led light source position can't change, and can't focus by light source, can only be by focusing as the mirror group, and a plurality of lens workloads in the check and correction imaging mirror group are big, length consuming time; And the used lens group of this concentrating method is bigger, and it is long to close electrical distance, and it is inhomogeneous to close light, causes cost too high.
Summary of the invention
Technical problem to be solved by this invention provides a kind of plurality of LEDs lamp pearl that is used for light fixture that can imaging to close the light concentrating method, the processing of light source, easy for installation, and cost is low; Focusing realize short distance clutch light, and it is even to close light easily.
For solving the problems of the technologies described above technical scheme of the present invention be: a kind of plurality of LEDs lamp pearl that is used for light fixture that can imaging is closed the light concentrating method, in the described concentrating method, plurality of LEDs lamp pearl all is in same plane, the equal correspondence in every LED lamp pearl the place ahead is provided with one first condenser, and all first condensers are formed the first condenser group; Each equal correspondence in first condenser the place ahead is provided with one second condenser, and all second condensers are formed the second condenser group; Each equal correspondence in second condenser the place ahead is provided with one the 3rd condenser, and all the 3rd condensers are formed the 3rd condenser group; Described the 3rd condenser group the place ahead is provided with one the 4th condenser; After first condenser, second condenser, the 3rd condenser of its correspondence of light process that every LED lamp pearl sends carries out optically focused, the angle of divergence of light becomes less, form a branch of nearly directional light, the nearly directional light of multi beam carries out the focusing and the mixing of light simultaneously through the 4th condenser, after focusing on mixing, near the 4th condenser focus, the light more than 60% concentrates in the 20mm-60mm diameter range, and the divergence of beam angle more than 60% is in 40 degree.Can accomplish with the less camera lens combination of diameter the luminous flux of the divergent rays 80% of single lamp pearl to be assembled is the less nearly parallel rays of divergence, and then the nearly directional light of multi beam is focused near the focus of the 4th condenser, and then realize that the light beam of many lamp pearls is synthetic by the 4th condenser.The lamp pearl is on same plane, and is easy for installation, and technology is simple, and heat radiation is handled easily, and is with low cost; Optical efficiency improves 80%; Short distance realizes closing light, and it is even to close light.
As improvement, described plurality of LEDs lamp pearl is located on the same planar substrates, and planar substrates is easy to process, saves cost; LED lamp pearl installation accuracy in the plane requires relatively low.
As improvement, described first condenser is an aspherical mirror, and the circular cone coefficient is-0.85 ~-0.6, and radius of curvature is 4.5 ~ 10mm, and diameter is 10 ~ 20mm, and the limit is thick to be 1 ~ 5mm; All first condensers are in the same plane, and the first condenser group is carried out the optically focused first time to the light that LED sends.
As improvement, described second condenser is a spherical mirror, and its left side convex curvature radius is 20 ~ 60mm, and right side convex curvature radius is 8 ~ 20mm, and diameter is 10 ~ 20mm, and the limit is thick to be 1 ~ 5mm; All second condensers are in the same plane, and the second condenser group is carried out the optically focused second time to the light that LED sends.
As improvement, described the 3rd condenser is a spherical mirror, and its convex curvature radius is 40 ~ 80mm, and diameter is 20 ~ 30mm, and the limit is thick to be 1 ~ 5mm; All the 3rd condensers are in the same plane, and the 3rd condenser group is carried out optically focused for the third time to the light that LED sends.
As improvement, described the 4th condenser is a positive lens, and Ke Yi Shi Fei Nieer lens or common spherical mirror, the focal length of described the 4th condenser are 80 ~ 120mm, and diameter is 65 ~ 75mm, and the limit is thick to be 1 ~ 5mm; The 4th condenser will focus on the focus of the 4th condenser through the nearly directional light of the multi beam of three optically focused.Distance between first condenser and second condenser is 0 ~ 3mm, and the distance between second condenser and the 3rd condenser is 8 ~ 15mm, and the distance between the 3rd condenser and the 4th condenser is 2 ~ 50mm.
As improvement, described LED lamp pearl is evenly distributed, and forms the luminous planar light source of multiple spot.
The beneficial effect that the present invention is compared with prior art brought is:
1, planar LED lamp group processing is more convenient, and it is not high to process and install desired precision;
2, can focus the focusing more convenient and quicker by the 4th condenser;
3, the planar LED light source heat radiation is handled easily, and is with low cost;
4, optical efficiency improves 80%;
5, short distance realizes closing light, and it is even to close light.
Description of drawings
Fig. 1 is the vertical view of condenser system of the present invention.
Fig. 2 is the A-A cutaway view of Fig. 1.
The specific embodiment
The invention will be further described below in conjunction with Figure of description.
Embodiment 1
As shown in Figure 1, 2, a kind of plurality of LEDs lamp pearl that is used for light fixture that can imaging is closed the light concentrating method, light source by the plane closes light optically focused, the light source on plane comprises planar substrates, be evenly distributed with plurality of LEDs lamp pearl 5 on the described planar substrates, be provided with four LED lamp pearls 5 in the present embodiment altogether, be in conplane four LED lamp pearls 5 and form planar light source.The equal correspondence in every LED lamp pearl 5 the place aheads is provided with one first condenser 11, described first condenser 11 is an aspherical mirror, the circular cone coefficient is-0.85, radius of curvature is 4.5mm, diameter is 10mm, the limit is thick to be 1mm, and four first condensers 11 are in the same plane and form the first condenser group 1, and the light that LED is sent carries out the optically focused first time.Each equal correspondence in first condenser, 11 the place aheads is provided with one second condenser 21, described second condenser 21 is common spherical mirror, its left radius of curvature is 20mm, right radius of curvature is 8mm, diameter is 10mm, the limit is thick to be 1mm, and four second condensers 21 are in the same plane and form the second condenser group 2, and the light that LED is sent carries out the optically focused second time.Each equal correspondence in second condenser, 21 the place aheads is provided with one the 3rd condenser 31, described the 3rd condenser 31 is simple planoconvex lens, its convex curvature radius is 40mm, diameter is 20mm, the limit is thick to be 1mm, four the 3rd condensers 31 are in the same plane and form the 3rd condenser group 3, and the light that LED is sent carries out optically focused for the third time.The 3rd condenser group 3 the place aheads are provided with one the 4th condenser 4, and described the 4th condenser 4 is the Fei Nieer lens, and the focal length of described the 4th condenser is 80mm, and diameter is 65mm, and the limit is thick to be 1mm.By first condenser 11, second condenser 21, the condenser system that the 3rd condenser 31 combines, distance between described first condenser and second condenser is 0mm, distance between described second condenser and the 3rd condenser is 8mm, distance between described the 3rd condenser and the 4th condenser is 2mm, can accomplish with the less camera lens combination of diameter the luminous flux of the divergent rays 80% of single lamp pearl to be assembled is the less nearly parallel rays of divergence, and then the nearly directional light of multi beam is focused near the focus of the 4th condenser 4, and then realize that the light beam of many lamp pearls is synthetic by the 4th condenser 4.Three even optically focused degressively, the beam angle that sends 120 degree from LED lamp pearl is poly-for the first time to the 70-80 degree by the first condenser group 1, poly-for the second time by the second condenser group 2 to the 30-40 degree, poly-for the third time in 20 degree by the 3rd condenser group 3, at last near the 4th condenser 4 focuses, light more than 60% concentrates in the 20mm-60mm diameter range, and the divergence of beam angle more than 60% is fit to be placed to the picture thing in 40 degree.
Embodiment 2
As shown in Figure 1, 2, a kind of plurality of LEDs lamp pearl that is used for light fixture that can imaging is closed the light concentrating method, light source by the plane closes light optically focused, the light source on plane comprises planar substrates, be evenly distributed with plurality of LEDs lamp pearl 5 on the described planar substrates, be provided with four LED lamp pearls 5 in the present embodiment altogether, be in conplane four LED lamp pearls 5 and form planar light source.The equal correspondence in every LED lamp pearl 5 the place aheads is provided with one first condenser 11, described first condenser 11 is an aspherical mirror, the circular cone coefficient is-0.7, radius of curvature is 7.0mm, diameter is 15mm, the limit is thick to be 3mm, and four first condensers 11 are in the same plane and form the first condenser group 1, and the light that LED is sent carries out the optically focused first time.Each equal correspondence in first condenser, 11 the place aheads is provided with one second condenser 21, described second condenser 21 is common spherical mirror, its left radius of curvature is 40mm, right radius of curvature is 14mm, diameter is 15mm, the limit is thick to be 3mm, and four second condensers 21 are in the same plane and form the second condenser group 2, and the light that LED is sent carries out the optically focused second time.Each equal correspondence in second condenser, 21 the place aheads is provided with one the 3rd condenser 31, described the 3rd condenser 31 is simple planoconvex lens, its convex curvature radius is 60mm, diameter is 25mm, the limit is thick to be 3mm, four the 3rd condensers 31 are in the same plane and form the 3rd condenser group 3, and the light that LED is sent carries out optically focused for the third time.The 3rd condenser group 3 the place aheads are provided with one the 4th condenser 4, and described the 4th condenser 4 is the Fei Nieer lens, and the focal length of described the 4th condenser is 100mm, and diameter is 70mm, and the limit is thick to be 3mm.By first condenser 11, second condenser 21, the condenser system that the 3rd condenser 31 combines, distance between described first condenser and second condenser is 1.5mm, distance between described second condenser and the 3rd condenser is 12mm, distance between described the 3rd condenser and the 4th condenser is 25mm, can accomplish with the less camera lens combination of diameter the luminous flux of the divergent rays 80% of single lamp pearl to be assembled is the less nearly parallel rays of divergence, and then the nearly directional light of multi beam is focused near the focus of the 4th condenser 4, and then realize that the light beam of many lamp pearls is synthetic by the 4th condenser 4.Three even optically focused degressively, the beam angle that sends 120 degree from LED lamp pearl is poly-for the first time to the 70-80 degree by the first condenser group 1, poly-for the second time by the second condenser group 2 to the 30-40 degree, poly-for the third time in 20 degree by the 3rd condenser group 3, at last near the 4th condenser 4 focuses, light more than 60% concentrates in the 20mm-60mm diameter range, and the divergence of beam angle more than 60% is fit to be placed to the picture thing in 40 degree.
Embodiment 3
As shown in Figure 1, 2, a kind of plurality of LEDs lamp pearl that is used for light fixture that can imaging is closed the light concentrating method, light source by the plane closes light optically focused, the light source on plane comprises planar substrates, be evenly distributed with plurality of LEDs lamp pearl 5 on the described planar substrates, be provided with four LED lamp pearls 5 in the present embodiment altogether, be in conplane four LED lamp pearls 5 and form planar light source.The equal correspondence in every LED lamp pearl 5 the place aheads is provided with one first condenser 11, described first condenser 11 is an aspherical mirror, the circular cone coefficient is-0.6, radius of curvature is 10mm, diameter is 20mm, the limit is thick to be 5mm, and four first condensers 11 are in the same plane and form the first condenser group 1, and the light that LED is sent carries out the optically focused first time.Each equal correspondence in first condenser, 11 the place aheads is provided with one second condenser 21, described second condenser 21 is common spherical mirror, its left radius of curvature is 60mm, right radius of curvature is 20mm, diameter is 20mm, the limit is thick to be 5mm, and four second condensers 21 are in the same plane and form the second condenser group 2, and the light that LED is sent carries out the optically focused second time.Each equal correspondence in second condenser, 21 the place aheads is provided with one the 3rd condenser 31, described the 3rd condenser 31 is simple planoconvex lens, its convex curvature radius is 80mm, diameter is 30mm, the limit is thick to be 5mm, four the 3rd condensers 31 are in the same plane and form the 3rd condenser group 3, and the light that LED is sent carries out optically focused for the third time.The 3rd condenser group 3 the place aheads are provided with one the 4th condenser 4, and described the 4th condenser 4 is the Fei Nieer lens, and the focal length of described the 4th condenser is 120mm, and diameter is 75mm, and the limit is thick to be 5mm.By first condenser 11, second condenser 21, the condenser system that the 3rd condenser 31 combines, distance between described first condenser and second condenser is 3mm, distance between described second condenser and the 3rd condenser is 15mm, distance between described the 3rd condenser and the 4th condenser is 50mm, can accomplish with the less camera lens combination of diameter the luminous flux of the divergent rays 80% of single lamp pearl to be assembled is the less nearly parallel rays of divergence, and then the nearly directional light of multi beam is focused near the focus of the 4th condenser 4, and then realize that the light beam of many lamp pearls is synthetic by the 4th condenser 4.Three even optically focused degressively, the beam angle that sends 120 degree from LED lamp pearl is poly-for the first time to the 70-80 degree by the first condenser group 1, poly-for the second time by the second condenser group 2 to the 30-40 degree, poly-for the third time in 20 degree by the 3rd condenser group 3, at last near the 4th condenser 4 focuses, light more than 60% concentrates in the 20mm-60mm diameter range, and the divergence of beam angle more than 60% is fit to be placed to the picture thing in 40 degree.
In sum, planar LED lamp light source processing is more convenient, and it is not high to process and install desired precision; Can focus the focusing more convenient and quicker by the 4th condenser 4; The planar LED light source heat radiation is handled easily, and is with low cost; Optical efficiency improves 80%; Short distance realizes closing light, and it is even to close light.Led lamp pearl with four 60W is an example, can be used for the varifocal imaging system after focusing is synthetic, the outgoing beam angle zooms to 40 degree by 12 degree, and the average illumination of 1 meter hot spot can reach 4500Lx, and the similar light fixture of traditional HID light source, about 1 meter hot spot average illumination 6500Lx of 575W.
Claims (7)
1. a plurality of LEDs lamp pearl that is used for light fixture that can imaging is closed the light concentrating method, it is characterized in that: in the described concentrating method, plurality of LEDs lamp pearl all is in same plane, and the equal correspondence in every LED lamp pearl the place ahead is provided with one first condenser, and all first condensers are formed the first condenser group; Each equal correspondence in first condenser the place ahead is provided with one second condenser, and all second condensers are formed the second condenser group; Each equal correspondence in second condenser the place ahead is provided with one the 3rd condenser, and all the 3rd condensers are formed the 3rd condenser group; Described the 3rd condenser group the place ahead is provided with one the 4th condenser; After first condenser, second condenser, the 3rd condenser of its correspondence of light process that every LED lamp pearl sends carries out optically focused, the angle of divergence of light becomes less, form a branch of nearly directional light, the nearly directional light of multi beam carries out the focusing and the mixing of light simultaneously through the 4th condenser, after focusing on mixing, near the 4th condenser focus, the light more than 60% concentrates in the 20mm-60mm diameter range, and the divergence of beam angle more than 60% is in 40 degree.
2. plurality of LEDs according to claim 1 closes the light concentrating method, it is characterized in that: described plurality of LEDs lamp pearl is located on the same planar substrates.
3. plurality of LEDs according to claim 1 closes the light concentrating method, it is characterized in that: described first condenser is an aspherical mirror, and all first condensers are in the same plane, and the first condenser group is carried out the optically focused first time to the light that LED sends.
4. plurality of LEDs according to claim 1 closes the light concentrating method, it is characterized in that: described second condenser is a spherical mirror, and all second condensers are in the same plane, and the second condenser group is carried out the optically focused second time to the light that LED sends.
5. plurality of LEDs according to claim 1 closes the light concentrating method, it is characterized in that: described the 3rd condenser is a spherical mirror, and all the 3rd condensers are in the same plane, and the 3rd condenser group is carried out optically focused for the third time to the light that LED sends.
6. plurality of LEDs according to claim 1 closes the light concentrating method, it is characterized in that: described the 4th condenser is a positive lens, and the 4th condenser will focus on the focus of the 4th condenser through the nearly directional light of the multi beam of three optically focused.
7. plurality of LEDs according to claim 1 closes the light concentrating method, it is characterized in that: described LED lamp pearl is evenly distributed, and forms the luminous planar light source of multiple spot.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100243866A CN102121662B (en) | 2011-01-24 | 2011-01-24 | Light synthesizing and condensing method for multiple LED (light-emitting diode) lamp beads of lamp capable of imaging |
| US13/981,075 US9447942B2 (en) | 2011-01-24 | 2011-11-18 | LED condensing system and method with a plurality of LEDs, and its application in imaging system |
| PCT/CN2011/082394 WO2012100584A1 (en) | 2011-01-24 | 2011-11-18 | Condensing system and method with a plurality of leds, and its application in imaging system |
| EP11856682.7A EP2669729A4 (en) | 2011-01-24 | 2011-11-18 | Condensing system and method with a plurality of leds, and its application in imaging system |
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| CN2011100243866A CN102121662B (en) | 2011-01-24 | 2011-01-24 | Light synthesizing and condensing method for multiple LED (light-emitting diode) lamp beads of lamp capable of imaging |
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| CN102121662B CN102121662B (en) | 2013-04-17 |
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| WO2013016923A1 (en) * | 2011-08-03 | 2013-02-07 | 广州市雅江光电设备有限公司 | Optical system of led spotlight and light casting method thereof |
| CN104296611A (en) * | 2014-10-31 | 2015-01-21 | 合肥鑫晟光电科技有限公司 | Measuring scale |
| CN109556083A (en) * | 2018-12-26 | 2019-04-02 | 赛尔富电子有限公司 | A kind of ultra-low-angle lens light distributing system |
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