CN103925553B - A kind of LED spotlight - Google Patents
A kind of LED spotlight Download PDFInfo
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- CN103925553B CN103925553B CN201410117616.7A CN201410117616A CN103925553B CN 103925553 B CN103925553 B CN 103925553B CN 201410117616 A CN201410117616 A CN 201410117616A CN 103925553 B CN103925553 B CN 103925553B
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- led
- light source
- led light
- led spotlight
- radiator
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Abstract
The present invention relates to a kind of LED spotlight, comprising: bracing frame; LED light source, is arranged on support frame as described above; Secondary optics part, to be arranged on support frame as described above and to be positioned on the emergent light direction of LED light source; This secondary optics part comprises at least two lens and the focus control for adjusting the distance between described lens.The present invention realizes illumination, the hot spot effect of distance lamp body fixed range, with satisfied different scene lighting demand by the focus control distance adjusted between two lens.Optimal design LED light source of the present invention adjusts illumination and the hot spot effect of LED spotlight further, and can improve the colour rendering index of LED light source; And, optimize the radiating effect that heat conduction and heat radiation design improves LED spotlight, make light fixture itself energy-conservation more than 80%, also by reducing the caloric value of product indirectly to the energy consumption of studio, direct broadcasting room air-conditioning system, while bringing good economic benefits, bring the social exemplary role of green, environmental protection.
Description
Technical field
The present invention relates to lighting field, be specifically related to a kind of LED spotlight.
Background technology
Green, LED application technologies that are energy-saving and environmental protection deepen continuously the every aspect of society and life, reduce discharging, Creating Green life brings huge benefit to social energy conservation.In professional domains such as the studio of TV station, direct broadcasting rooms, in most stage still resting on the traditional 2000W tengsten lamp of use, cause the waste of the energy, effect that is green, environmental protection can not be reached.Its main cause be current LED spotlight compared with traditional 2000W tengsten lamp, also there is a big difference for the illumination of its fixed range, hot spot effect and colour rendering index.
Having the LED lamp entering TV station studio, direct broadcasting room of very few number at present, is the flat LED light fixture of area source and the LED spotlight of simple secondary optics adjustable focal length respectively.The flat LED light fixture of area source can not get large-scale application because optical effect is single and illumination is not enough at TV station studio, direct broadcasting room.In addition, the LED spotlight of simple secondary optics adjustable focal length is only provided with the secondary optics processing links that one-level is made up of Fresnel lens before LED light source, cause optical loss large, the illumination of fixed range, hot spot effect and colour rendering index do not reach the level of traditional 2000W tengsten lamp.
In order to overcome the above problems, invention has been useful improvement.
Summary of the invention
(1) technical problem that will solve
The object of this invention is to provide a kind of LED spotlight of adjustable focal length, improve illumination and the hot spot effect of LED spotlight.
(2) technical scheme
The present invention is achieved by the following technical solutions: a kind of LED spotlight, comprising:
Bracing frame;
LED light source, is arranged on support frame as described above;
Secondary optics part, to be arranged on support frame as described above and to be positioned on the emergent light direction of LED light source; Described secondary optics part comprises at least two lens and the focus control for adjusting the distance between described lens.
Wherein, described secondary optics part comprises convex lens and Fresnel Lenses successively along beam projecting direction.
Further, described LED light source comprises substrate and setting white light LEDs, red-light LED and blue-ray LED on the substrate.
Or, the White LED packaged chip that described LED light source comprises substrate and arranges on the substrate.
Wherein, the LED power density P>=0.1W/mm of described LED light source
2.
Further, the light-emitting area S≤1000mm of described LED light source
2.
Wherein, described substrate adopts aluminium, copper or pottery to make.
Further, described LED light source is provided with radiator, and described radiator is thermal column radiator and/or phase change technique radiator.
Preferably, described radiator is bonding by heat-conducting cream fat with described LED light source.
Further, described LED spotlight is provided with the cooling air channel for cooling described radiator; Described cooling air channel is communicated with the cold air in this LED spotlight external world, and is provided with supply fan in this cooling air channel.
Further again, described cooling air channel is provided with Collapsible structure.
Wherein, this LED spotlight also comprises control section; Described control section comprises DMX controller, and this control section is for the break-make of the brightness and power supply that adjust this LED light source.
(3) beneficial effect
Compare with product with prior art, the present invention has the following advantages:
1, LED spotlight provided by the invention realizes illumination, the hot spot effect of distance lamp body fixed range by the distance between focus control adjustment lens, with satisfied different scene lighting demand, this LED spotlight is enable to obtain large-scale application at TV station studio, direct broadcasting room.
2, optimal design LED light source of the present invention adjusts illumination and the hot spot effect of LED spotlight further, and can improve the colour rendering index of LED light source.
3, the present invention optimizes the radiating effect that heat conduction and heat radiation design improves LED spotlight, make light fixture itself energy-conservation more than 80%, also by reducing the caloric value of product indirectly to the energy consumption of studio, direct broadcasting room air-conditioning system, while bringing good economic benefits, bring the social exemplary role of green, environmental protection.
Accompanying drawing explanation
Fig. 1 is the front view of LED spotlight provided by the invention;
Fig. 2 is the sectional view of LED spotlight provided by the invention.
In accompanying drawing, the component list representated by each label is as follows:
1-air inlet rear end cap; 2-housing; 3-cooling air channel; 4-focus control; 5-lamp body supporting component; 6-air inlet fan; 7-radiator; 8-LED light source; 9-convex lens; 10-Fresnel Lenses; 11-control section; 12-lamp adapter assembly; 13-bracing frame.
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is made a detailed explanation.
As illustrated in fig. 1 and 2, the embodiment of the present invention provides a kind of LED spotlight, comprising:
Bracing frame 13; Bracing frame 13 is provided with housing 2, lamp body supporting component 5 and is arranged on the lamp adapter assembly 12 of LED spotlight front end; LED light source 8, is arranged on support frame as described above 13; Secondary optics part, described secondary optics part to be arranged on bracing frame 13 and to be positioned on the emergent light direction of described LED light source 8, and this secondary optics part comprises at least two lens and the focus control 4 for adjusting the distance between described lens.LED spotlight adjusts the focal length of this spotlight by focus control 4 distance adjusted between lens, realizes illumination, the hot spot effect of distance lamp body fixed range, with satisfied different scene lighting demand.
Particularly, as shown in Figure 2, described secondary optics part comprises convex lens 9 and Fresnel Lenses 10 successively along beam projecting direction.Preferably, planoconvex spotlight selected by these convex lens.Fresnel Lenses 10 characteristic is that area is large, thickness is thin and detecting distance.Fresnel Lenses to be many times equivalent to the convex lens of infrared ray and visible ray, and effect is better, but cost is more much lower than common convex lens.
Further, LED light source 8 passes through to be optimized, first light-emitting area S≤1000mm
2, be convenient to realize secondary optics adjustment illumination and hot spot effect; And then, control to distribute abundant LED in the region that area is enough little, make the power density of this LED light source 8 reach P>=0.1W/mm
2above.Described LED light source 8 comprises substrate and welding white light LEDs, red-light LED and blue-ray LED on the substrate, and improved colour rendering index CRI >=90 of whole light source by the compensation of red-light LED, blue-ray LED, this kind of light source power can reach more than 300W.Certainly, provide another kind of LED light source 8 in the present embodiment, it comprises substrate and is arranged on the white-light LED encapsulation chip of the various colour temperatures on substrate (LED COB), this kind of LED light source simple installation, low cost of manufacture.
Wherein, substrate can adopt aluminium, copper or pottery to make.Use heat conduction system to be more than or equal to the aluminium base of 100W/mK, copper base or ceramic substrate, improve the radiating effect of high-power LED light source.Further, increase substrate area to more than 4000 square millimeters simultaneously, improve the radiating effect that LED light source 8 is longitudinal and horizontal.
In order to further improving radiating effect, described LED light source 8 is provided with radiator 7, and described radiator 7 is thermal column radiator and/or phase change technique radiator.Described radiator 7 is bonding by heat-conducting cream fat with described LED light source 8.The thermal conductivity factor of heat-conducting cream fat is more than or equal to 30W/mK.
Further again, described LED spotlight is provided with the cooling air channel 3 for cooling described radiator 7; Described cooling air channel 3 is provided with air inlet rear end cap 1 in the rear end of spotlight, is communicated with, and is provided with supply fan 6 in described cooling air channel 3 by the cold air of this air inlet rear end cap 1 with this LED spotlight external world.The optional fan with having mute function of supply fan 6.The cold air of spotlight light fixture outside can blow on radiator 7 by cooling air channel 3 continually, and the hot-air simultaneously avoided in lamp body is blown on radiator 7 by supply fan 6 circulation, reaches good radiating effect.In order to ensure that pipe safety runs, preferably, described cooling air channel 3 is provided with Collapsible structure.This Collapsible structure comprises bellow-type expansion joint, slip expansion joint or square natural compensation telescopic joint, its for compensating extraction duct axis, transverse direction, angle are heated the dilatation caused.
This LED spotlight also comprises control section 11; Described control section 11 comprises DMX controller, as DMX512 signal light control card; This control section 11, for the break-make of the brightness and power supply that adjust LED light source 8, makes this product meet studio, the user demand of direct broadcasting room professional domain.
Described LED spotlight is by the structure such as the secondary optics part of adjustable focal length, LED light source combines and arrangement, heat conduction and heat radiation design, cooling air channel, make the LED spotlight of adjustable focal length surmount the illumination of 2000W tengsten lamp same distance and the parameter of hot spot effect when 300W power comprehensively, colour rendering index also reaches instructions for use CRI >=90 of studio industry, thus make the studio of TV station, direct broadcasting room starts to step into and turns real LED illumination epoch.
Above embodiment is only for illustration of the present invention; and be not limitation of the present invention; the those of ordinary skill of relevant technical field; without departing from the spirit and scope of the present invention; can also make a variety of changes and modification; therefore all equivalent technical schemes also belong to category of the present invention, and scope of patent protection of the present invention should be defined by the claims.
Claims (8)
1. a LED spotlight, is characterized in that, comprising:
Bracing frame;
LED light source, is arranged on support frame as described above;
Secondary optics part, to be arranged on support frame as described above and to be positioned on the emergent light direction of LED light source; Described secondary optics part comprises at least two lens and the focus control for adjusting the distance between described lens;
Described LED light source is provided with radiator, and described radiator is thermal column radiator and/or phase change technique radiator; Described radiator is bonding by heat-conducting cream fat with described LED light source;
Described LED spotlight is provided with the cooling air channel for cooling described radiator; Described cooling air channel is communicated with the cold air in this LED spotlight external world, and is provided with supply fan in this cooling air channel; Described cooling air channel is provided with Collapsible structure.
2. LED spotlight according to claim 1, is characterized in that, described secondary optics part comprises convex lens and Fresnel Lenses successively along beam projecting direction.
3. LED spotlight according to claim 1, is characterized in that, white light LEDs, red-light LED and blue-ray LED that described LED light source comprises substrate and arranges on the substrate.
4. LED spotlight according to claim 1, is characterized in that, the White LED packaged chip that described LED light source comprises substrate and arranges on the substrate.
5. the LED spotlight according to claim 3 or 4, is characterized in that,
The LED power density P>=0.1W/mm of described LED light source
2.
6. LED spotlight according to claim 5, is characterized in that, the light-emitting area S≤1000mm of described LED light source
2.
7. LED spotlight according to claim 3, is characterized in that, described substrate adopts aluminium, copper or pottery to make.
8. LED spotlight according to claim 1, is characterized in that, this LED spotlight also comprises control section; Described control section comprises DMX controller, and this control section is for the break-make of the brightness and power supply that adjust this LED light source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410117616.7A CN103925553B (en) | 2014-03-26 | 2014-03-26 | A kind of LED spotlight |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410117616.7A CN103925553B (en) | 2014-03-26 | 2014-03-26 | A kind of LED spotlight |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103925553A CN103925553A (en) | 2014-07-16 |
| CN103925553B true CN103925553B (en) | 2015-11-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410117616.7A Active CN103925553B (en) | 2014-03-26 | 2014-03-26 | A kind of LED spotlight |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104295958A (en) * | 2014-09-29 | 2015-01-21 | 广州市南视灯具设备有限公司 | LED spot lamp |
| CN104763888B (en) * | 2015-03-20 | 2016-09-21 | 江苏达伦电子股份有限公司 | A kind of rotating LED modulated structure |
| WO2017024556A1 (en) * | 2015-08-12 | 2017-02-16 | 北京莱斯达电子科技有限公司 | Lighting effect adjustable led spotlight |
| CN107339617A (en) * | 2017-07-26 | 2017-11-10 | 佛山市川东照明科技有限公司 | A kind of LED light source component and LED lamp |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102080794A (en) * | 2011-03-03 | 2011-06-01 | 格瑞电子（厦门）有限公司 | LED (light emitting diode) radiating illumination device |
| CN102661514A (en) * | 2012-05-09 | 2012-09-12 | 广东三雄极光照明股份有限公司 | Light emitting diode (LED) lamp |
| CN203823652U (en) * | 2014-03-26 | 2014-09-10 | 北京莱斯达电子科技有限公司 | LED (Light Emitting Diode) spot lamp |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3006812B2 (en) * | 1993-02-15 | 2000-02-07 | スタンレー電気株式会社 | Signal lights for vehicles |
| CN201526829U (en) * | 2009-10-24 | 2010-07-14 | 杰森医疗设备(上海)有限公司 | Shadowless lamp |
| JP5417620B2 (en) * | 2010-12-03 | 2014-02-19 | 株式会社 巽中央経營研究所 | Elliptical irradiation projector |
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2014
- 2014-03-26 CN CN201410117616.7A patent/CN103925553B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102080794A (en) * | 2011-03-03 | 2011-06-01 | 格瑞电子（厦门）有限公司 | LED (light emitting diode) radiating illumination device |
| CN102661514A (en) * | 2012-05-09 | 2012-09-12 | 广东三雄极光照明股份有限公司 | Light emitting diode (LED) lamp |
| CN203823652U (en) * | 2014-03-26 | 2014-09-10 | 北京莱斯达电子科技有限公司 | LED (Light Emitting Diode) spot lamp |
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| CN103925553A (en) | 2014-07-16 |
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