CN103175007A - Light-emitting diode (LED) lamp with adjustable color temperature - Google Patents
Light-emitting diode (LED) lamp with adjustable color temperature Download PDFInfo
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- CN103175007A CN103175007A CN2013100796149A CN201310079614A CN103175007A CN 103175007 A CN103175007 A CN 103175007A CN 2013100796149 A CN2013100796149 A CN 2013100796149A CN 201310079614 A CN201310079614 A CN 201310079614A CN 103175007 A CN103175007 A CN 103175007A
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- colour temperature
- adjustable plate
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Abstract
The invention relates to a technology of color temperature adjustment of a light-emitting diode (LED) lamp. The LED lamp with adjustable color temperature is characterized by comprising a color temperature adjustment plate and an electromagnetic adjustment device. Under normal conditions, the color temperature adjustment plate is in the position of 'off', the LED lamp gives out light which is high in color temperature and good in coloration effect. Under special conditions like a fogy condition, the electromagnetic adjustment device is switched on to enable the color temperature adjustment plate to be in the position of 'on', and the LED lamp gives out light which is low in color temperature and good in penetrability. The LED lamp with adjustable color temperature has the advantage of providing a low-cost and reliable color temperature adjustment method for the LED lamp.
Description
Technical field
The present invention relates to lighting technical field, relate in particular to a kind of LED light fixture and control method thereof of adjustable color temperature.
Background technology
LED(Light Emitting Diode), i.e. light emitting diode has the characteristics such as energy-efficient, environmental protection, long-life, volume be little, has been widely used in the fields such as various indications, demonstration, decoration, backlight, general lighting and urban landscape.The LED illumination can be regulated luminous colour temperature according to need for environment, to satisfy various occasions, time and weather for the demand of light colour temperature.For example, the light source colour rendering index that colour temperature is higher is high, and colour temperature lower (gold-tinted partially) light source is under the weather conditions of fog, penetrability is better, if can realize that the colour temperature of LED street lamp is regulated according to different weather conditions, can more satisfy the requirement of road lighting.
Common adjustable LED colour temperature illuminator adopts discrete red, green, blue LED lamp pearl usually, by regulating the luminous intensity of different colours lamp pearl, realizes that the colour temperature of light source is regulated (as CN 201210186857).The problem of this technology is, need to be independently-powered to the LED lamp pearl of different colours, and drive circuit is complicated, and cost is high; In addition, along with the increase of service time, because different lamp pearls has different attenuation curves, guarantee the uniformity of illumination performance, need to carry out complex calculations to the driving strategy of light source, waste time and energy.
Summary of the invention
In order to solve above-mentioned technical problem, a kind of LED light fixture of adjustable color temperature has been proposed.This LED light fixture comprises: LED light fixture module, colour temperature adjustable plate and adjusting device.
Described LED light fixture module comprises substrate and LED lamp pearl.Described substrate comprises crystal bonding area and circuit, realizes fixing, powering and heat radiation LED lamp pearl.LED light fixture module is equipped with communication module, can receive the instruction that colour temperature is regulated.
The filter (as yellow) that described colour temperature adjustable plate is certain particular color, and have the loophole of corresponding size at the correspondence position of each LED lamp pearl.
Described adjusting device is arranged between LED substrate and colour temperature adjustable plate, can adjust the distance between colour temperature adjustable plate and LED lamp pearl.
The present invention can control and receive the luminous flux that filter is regulated by adjusting the distance between loophole and LED lamp pearl, thereby realizes the adjusting of the light source color temperature of LED light fixture.
In above-mentioned technical scheme, described LED substrate can be made by aluminium base or ceramic substrate, for example adopts aluminium nitride (Aluminum nitride, AlN) ceramic material, its thermal conductivity factor surpasses (〉 250 W/mK), be the excellent material of preparation high-power heat-dissipation chip.The luminous efficiency of described LED lamp pearl can 100 lm/W, colour temperature is 6500K.Described colour temperature adjustable plate can adopt the acrylic (polymethyl methacrylate of optical glass or the high grade of transparency, PMMA) make, be made into filter into particular color by techniques such as dyeing, then in the suitable big or small hole of position folding corresponding to each LED lamp pearl, can guarantee does not affect the irradiation of the light of LED lamp pearl when the close LED lamp pearl of colour temperature adjustable plate.
Described adjusting device comprises that the parts such as electromagnet, permanent magnet, alignment pin and spring form.When the LED light fixture was in colour temperature adjusting "off" state, the drive current of electromagnet was zero, and spring is with colour temperature adjustable plate jack-up, near LED lamp pearl.At this moment, the light that LED lamp pearl sends sees through the loophole of colour temperature adjustable plate fully, namely the colour temperature of LED light fixture is not regulated.When the LED light fixture was in colour temperature adjusting "open" state, the drive current of electromagnet is a certain special value, and was opposite with permanent magnet polarity fixing on the colour temperature adjustable plate, and the colour temperature adjustable plate is pushed away LED lamp pearl.By adjusting the distance between loophole and LED lamp pearl, can control the luminous flux that the receipts filter is regulated, thereby realize the adjusting of the light source color temperature of LED light fixture.
Description of drawings
Fig. 1 is the LED fitting structure schematic diagram of a kind of adjustable color temperature of the present invention;
Fig. 2 is the action schematic diagram of the LED light fixture of a kind of adjustable color temperature of the present invention;
The specific embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail; The LED light fixture 100 of adjustable color temperature provided by the invention comprises LED light fixture module 101 as shown in Figure 1, colour temperature adjustable plate 102 and adjusting device 103.
Its workflow is described below: when LED light fixture 100 was in colour temperature adjusting "off" state, the drive current of the electromagnet 301 of adjusting device 103 was zero, and electromagnet 301 is packed up colour temperature adjustable plate 102, near LED lamp pearl 104.At this moment, the light that LED lamp pearl 104 sends sees through the loophole 201 of colour temperature adjustable plate 102 fully, namely the colour temperature of LED light fixture 100 is not regulated.When LED light fixture 100 was in colour temperature adjusting "open" state, the drive current of electromagnet 301 was a certain special value, and adjusting device 103 pushes away LED lamp pearl 104 with colour temperature adjustable plate 102.By adjusting the distance between loophole 201 and LED lamp pearl 104, can control the luminous flux that colour temperature adjustable plate 102 is regulated, thereby realize the adjusting of the light source color temperature of LED light fixture 100.
Fig. 2 has shown when LED light fixture 100 is in colour temperature adjusting "On" state, the position of colour temperature adjustable plate.
Compared with prior art, benefit of the present invention has been to provide a kind of low cost, simple and reliable LED light fixture color temperature adjusting method.
The above is only preferred embodiment of the present invention, and is in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, is equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (7)
1. the LED light fixture of an adjustable color temperature, is characterized in that: comprise LED light fixture module, colour temperature adjustable plate and adjusting device.
2.LED the light fixture module sends a kind of light of fixedly colour temperature, realizes illumination functions; Utilize adjusting device, can change the state of colour temperature adjustable plate, realize the colour temperature of LED light fixture is regulated.
3. LED light fixture module as claimed in claim 1, is characterized in that: be equipped with communication module, can receive the colour temperature regulating command.
4. colour temperature adjustable plate as claimed in claim 1, is characterized in that: be the filter of certain particular color, and have the loophole of corresponding size at the correspondence position of LED lamp pearl.
5. adjusting device as claimed in claim 1 is characterized in that: the state that can control the colour temperature adjustable plate: when LED light fixture (module) received the control instruction of " pass ", adjusting device was controlled the colour temperature adjustable plate and is in "off" state; Otherwise, control the colour temperature adjustable plate and be in "open" state.
6. adjusting device as claimed in claim 4, is characterized in that: adopt the Electromagnetic Control mode; When the electric current of electromagnet was zero, the colour temperature adjustable plate was in "off" state; Greater than zero the time, electromagnet poles sexually revises, and the colour temperature adjustable plate is pushed into the position of " opening " when electromagnet current.
7. adjusting device as claimed in claim 4 is characterized in that: by the drive current of regulating magnet, and position that can flexible modulation colour temperature adjustable plate distance L ED lamp pearl, thus the colour temperature of regulating the LED light fixture changes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100796149A CN103175007A (en) | 2013-03-13 | 2013-03-13 | Light-emitting diode (LED) lamp with adjustable color temperature |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100796149A CN103175007A (en) | 2013-03-13 | 2013-03-13 | Light-emitting diode (LED) lamp with adjustable color temperature |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103175007A true CN103175007A (en) | 2013-06-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013100796149A Pending CN103175007A (en) | 2013-03-13 | 2013-03-13 | Light-emitting diode (LED) lamp with adjustable color temperature |
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| CN (1) | CN103175007A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103697389A (en) * | 2013-12-29 | 2014-04-02 | 哈尔滨固泰电子有限责任公司 | Variable-color-temperature automobile lamp |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2290755Y (en) * | 1996-06-03 | 1998-09-09 | 王毓元 | Colour variable lamp used for outer wall |
| CN101828072A (en) * | 2007-10-17 | 2010-09-08 | 吉可多公司 | Lighting device with light emitting diode and movable light adjustment member |
| CN102159880A (en) * | 2008-09-23 | 2011-08-17 | 皇家飞利浦电子股份有限公司 | Illumination device with electrical variable scattering element |
| CN202647383U (en) * | 2012-01-19 | 2013-01-02 | 苏州东山精密制造股份有限公司 | LED light source and backlight module group thereof and liquid crystal display screen |
| CN203348955U (en) * | 2013-03-13 | 2013-12-18 | 新疆华晶光电科技有限公司 | Color-temperature-adjustable LED lamp |
-
2013
- 2013-03-13 CN CN2013100796149A patent/CN103175007A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2290755Y (en) * | 1996-06-03 | 1998-09-09 | 王毓元 | Colour variable lamp used for outer wall |
| CN101828072A (en) * | 2007-10-17 | 2010-09-08 | 吉可多公司 | Lighting device with light emitting diode and movable light adjustment member |
| CN102159880A (en) * | 2008-09-23 | 2011-08-17 | 皇家飞利浦电子股份有限公司 | Illumination device with electrical variable scattering element |
| CN202647383U (en) * | 2012-01-19 | 2013-01-02 | 苏州东山精密制造股份有限公司 | LED light source and backlight module group thereof and liquid crystal display screen |
| CN203348955U (en) * | 2013-03-13 | 2013-12-18 | 新疆华晶光电科技有限公司 | Color-temperature-adjustable LED lamp |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103697389A (en) * | 2013-12-29 | 2014-04-02 | 哈尔滨固泰电子有限责任公司 | Variable-color-temperature automobile lamp |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130626 |