CN101801139B - Method for obtaining white light with high color development and adjustable color temperature by red, yellow, green and blue LED assembly - Google Patents
Method for obtaining white light with high color development and adjustable color temperature by red, yellow, green and blue LED assembly Download PDFInfo
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- CN101801139B CN101801139B CN 201010132441 CN201010132441A CN101801139B CN 101801139 B CN101801139 B CN 101801139B CN 201010132441 CN201010132441 CN 201010132441 CN 201010132441 A CN201010132441 A CN 201010132441A CN 101801139 B CN101801139 B CN 101801139B
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Abstract
The invention relates to a method for obtaining white light with high color development and adjustable color temperature by a red, yellow, green and blue LED assembly, which is realized through a red light LED, a yellow light LED, a green light LED, a blue light LED and a control circuit. Different drive currents are respectively supplied to the red light LED, the yellow light LED, the green light LED and the blue light LED through the control circuit to produce red light, yellow light, green light and blue light with different light intensity so as to form the white light with different color temperatures, and the white light with the adjustable color temperature and light flux can be obtained with the general color development index Ra and the special color development index R9 which are larger than 90 within the color temperature range of 2700-6500K.
Description
Technical field
The present invention relates to LED white light technical field, particularly relate to a kind of method that red, yellow, green and blue LED combination obtains white light with high color development and adjustable color temperature.
Background technology
At present realize the following several scheme of generally having of adjustable color temperature white light with LED:
1. adopt red-light LED, green light LED and blue-ray LED composition independency loop, reach the white light of different-colour by the drive current of regulating each loop, the color rendering of its white light is generally all relatively poor.
2. adopt the blue-light LED chip excitated fluorescent powder to produce the cold white light of high color temperature and red LED chip combination, or the cold white light LEDs of high color temperature and red-light LED combination, reach the white light of different-colour by the drive current of regulating red-light LED (chip), the color rendering of its white light is still not high in 2700K～6500K reference color temperature.Realize the essential fluorescent material proportioning of adjusting of high-color rendering in 2700K～6500K reference color temperature, therefore can not realize the high-color rendering white-light of continuous adjustable color temperature.
3. add again the green light LED chip on the basis of scheme 2, but its color rendering index Ra can not reach more than 90 still in 2700K～6500K scope, its special colour rendering index R
9Still lower.
4. adopt blue-light LED chip to excite red and the green fluorescence powder adds the yellow light LED chip portfolio, obtain the white light of different-colour by the drive current of regulating the yellow light LED chip, its color rendering also can only reach 80 left and right.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of method that red, yellow, green and blue LED combination obtains white light with high color development and adjustable color temperature, makes white light adjustable continuously in colour temperature 2700K～6500K scope, general colour rendering index Ra and special colour rendering index R
9All greater than 90.
The technical solution adopted for the present invention to solve the technical problems is: provide a kind of red, yellow, green and blue LED combination to obtain the method for white light with high color development and adjustable color temperature, comprise the following steps:
(1) according to the relative spectral power distribution of red-light LED, yellow light LED, green light LED and blue-ray LED, determine the logical percentage of light of ruddiness, gold-tinted, green glow and blue light under required LED combination white light reference color temperature by analogue simulation;
(2) selection red-light LED composition red-light LED loop, and connect with the ruddiness control circuit; Selection yellow light LED composition yellow light LED loop, and connect with the gold-tinted control circuit; Selection green light LED composition green light LED loop, and connect with the green glow control circuit; Selection blue-ray LED composition blue-ray LED loop, and connect with the blue light control circuit;
(3) relation of and drive current logical according to the light in red-light LED loop, yellow light LED loop, green light LED loop and blue-ray LED loop is determined the drive current in red-light LED loop, yellow light LED loop, green light LED loop and blue-ray LED loop;
(4) by corresponding control circuit, provide definite drive current to red-light LED loop, yellow light LED loop, green light LED loop and blue-ray LED loop respectively, thereby obtain the high-color rendering white-light under required colour temperature.
The peak wavelength of the red-light LED described in the method for described red, yellow, green and blue LED combination acquisition white light with high color development and adjustable color temperature is 620～650nm; The peak wavelength of described yellow light LED is 575～595nm; The peak wavelength of described green light LED is 515～535nm; The peak wavelength of described blue-ray LED is 450～470nm.
The peak wavelength of the red-light LED described in the method for described red, yellow, green and blue LED combination acquisition white light with high color development and adjustable color temperature is 630～640nm more preferably; The peak wavelength of described yellow light LED is 580～590nm more preferably; The peak wavelength of described green light LED is 520～530nm more preferably; The peak wavelength of described blue-ray LED is 455～465nm more preferably.
Required LED combination white light reference color temperature described in the method for described red, yellow, green and blue LED combination acquisition white light with high color development and adjustable color temperature is 2700K～6500K.
High-color rendering white-light described in the method for described red, yellow, green and blue LED combination acquisition white light with high color development and adjustable color temperature carries out the logical adjusting of light by described ruddiness control circuit, gold-tinted control circuit, green glow control circuit, blue light control circuit and colour temperature is regulated.
The combination of described red, yellow, green and blue LED obtains the red-light LED loop described in the method for white light with high color development and adjustable color temperature and carries out serial or parallel connection or string and mixing by one or at least two red-light LEDs and connect to form; Described yellow light LED loop is carried out serial or parallel connection or string and mixing by one or at least two yellow light LEDs and is connected to form; Described green light LED loop is carried out serial or parallel connection or string and mixing by one or at least two green light LEDs and is connected to form; Described blue-ray LED loop is carried out serial or parallel connection or string and mixing by one or at least two blue-ray LEDs and is connected to form.
The several light according to described required LED combination white light light logical big or small and single red-light LED, yellow light LED, green light LED and blue-ray LED that described red, yellow, green and blue LED makes up red-light LED, yellow light LED, green light LED and the blue-ray LED described in the method that obtains white light with high color development and adjustable color temperature lead to determine.
Beneficial effect
Owing to having adopted above-mentioned technical scheme, the present invention compared with prior art, have following advantage and good effect: utilize Colored light mixing addition principle and color rendering properties of light source evaluation method, spectral combination by ruddiness, gold-tinted, green glow and blue light that LED is sent is carried out computer simulation, found and satisfied in 2700K～6500K reference color temperature, white light general colour rendering index Ra is greater than 90 and special colour rendering index R
9Red, yellow, green and blue LED combination greater than 90, determined the peak wavelength scope of red-light LED, yellow light LED, green light LED and blue-ray LED, and can determine the drive current in red-light LED loop under required LED combination white light colour temperature, yellow light LED loop, green light LED loop and blue-ray LED loop, therefore, control enforcement conveniently.
Description of drawings
Fig. 1 is control circuit of the present invention and LED loop connection diagram;
Fig. 2 is the relative spectral power distribution schematic diagram of red-light LED;
Fig. 3 is the relative spectral power distribution schematic diagram of yellow light LED;
Fig. 4 is the relative spectral power distribution schematic diagram of green light LED;
Fig. 5 is the relative spectral power distribution schematic diagram of blue-ray LED.
Embodiment
Below in conjunction with specific embodiment, further set forth the present invention.Should be understood that these embodiment only to be used for explanation the present invention and be not used in and limit the scope of the invention.Should be understood that in addition those skilled in the art can make various changes or modifications the present invention after the content of having read the present invention's instruction, these equivalent form of values fall within the application's appended claims limited range equally.
Embodiments of the present invention relate to a kind of method that red, yellow, green and blue LED combination obtains white light with high color development and adjustable color temperature, the spectral distribution of red-light LED, yellow light LED, green light LED and blue-ray LED that adopted the theoretical model analogue simulation, and spectral distribution, light is logical and the relation of drive current variations.Utilize Colored light mixing addition principle and color rendering properties of light source evaluation method, spectral combination by ruddiness, gold-tinted, green glow and blue light that LED is sent is carried out computer simulation, found and satisfied in 2700K～6500K reference color temperature, white light general colour rendering index Ra is greater than 90 and special colour rendering index R
9Red, yellow, green and blue LED greater than 90 makes up, and has determined the peak wavelength scope of red-light LED, yellow light LED, green light LED and blue-ray LED.Utilize light fixture that the present invention makes can be suitable for need to be from cold white to the freely regulated specific (special) requirements of warm white by season, environment, atmosphere, hobby etc. lighting source, also can be suitable as the general lighting light source.
The embodiment of the present invention is comprised of the green light LED of the yellow light LED of the red-light LED of 1 power 1W, 1 power 1W, 1 power 1W and the blue-ray LED of 1 power 1W and control circuit separately, and its annexation can be learnt by Fig. 1.
Wherein, the peak wavelength of red-light LED under drive current 350mA is 629.2nm, and its relative spectral power distribution as shown in Figure 2; The peak wavelength of yellow light LED under drive current 350mA is 585.0nm, and its relative spectral power distribution as shown in Figure 3; The peak wavelength of green light LED under drive current 350mA is 525.0nm, and its relative spectral power distribution as shown in Figure 4; The peak wavelength of blue-ray LED under drive current 350mA is 456.2nm, and its relative spectral power distribution as shown in Figure 5.
Relative spectral power distribution according to red-light LED, yellow light LED, green light LED and blue-ray LED, and the light under drive current 350mA is logical, determine the required logical ratio of light of ruddiness, gold-tinted, green glow and blue light difference in 2700K～6500K reference color temperature by simulation calculation, then, logical according to the light of required white light, determine respectively the required granule number of red-light LED, yellow light LED, green light LED and blue-ray LED, and form independent loop separately.In the present embodiment, the granule number of red-light LED, yellow light LED, green light LED and blue-ray LED is according to logical under the 100lm condition at the light of required white light, adopts above-mentioned specific implementation method and determines.
The relation of and drive current logical according to the light of red-light LED, yellow light LED, green light LED and blue-ray LED is tentatively determined the drive current of red-light LED, yellow light LED, green light LED and blue-ray LED.Because the relative spectral power distribution of LED changes with drive current, therefore, the drive current of red-light LED, yellow light LED, green light LED and blue-ray LED also will be revised by analogue simulation, finally determines the drive current of red-light LED, yellow light LED, green light LED and blue-ray LED under the logical and different-colour condition of light at required high colour developing white light.
The red-light LED loop provides given drive current by the ruddiness control circuit, the yellow light LED loop provides given drive current by the gold-tinted control circuit, the green light LED loop provides given drive current by the green glow control circuit, and the blue-ray LED loop provides given drive current by the blue light control circuit.Control circuit and white light LEDs loop, red-light LED loop, green light LED loop and blue-ray LED loop connection diagram are as shown in Figure 1.
According to above-mentioned specific implementation method, the logical percentage of the light of the ruddiness that in the embodiment of the present invention, analogue simulation obtains, gold-tinted, green glow and blue light is as shown in table 1:
Table 1
According to above-mentioned specific implementation method, the drive current of the red-light LED that in the embodiment of the present invention, analogue simulation obtains, yellow light LED, green light LED and blue-ray LED is as shown in table 2:
Table 2
Colour temperature (Tc), chromaticity coordinates (u, v), general colour rendering index (Ra) and the special colour rendering index (R of the LED combination white light of 2700K, the 3000K that the embodiment of the present invention obtains by above-mentioned drive current, 3500K, 4000K, 4500K, 5000K, 5700K, 6500K
9) as shown in table 3:
Table 3
This shows, the white light that the present invention obtains is in the reference color temperature of 2700K～6500K, and general colour rendering index Ra reaches more than 90, and color rendering is very good; Especially at special colour rendering index R
9Also all reach more than 90, have outstanding performance, solved present LED white light at special colour rendering index R
9The difficult problem that upper performance is relatively poor.The present invention also can carry out the logical adjusting of light and colour temperature adjusting to resulting LED white light by ruddiness control circuit, gold-tinted control circuit, green glow control circuit, blue light control circuit.So the development that LED is from now on entered superelevation color rendering lighting requirement occasion and general lighting is significant.
Adopt patented method of the present invention, the high-color rendering that the red, yellow, green and blue LED combination realizes fixedly colour temperature 2700K～6500K white light also is subjected to this patent protection.Adopt patented method of the present invention, for by single white light with high color development and adjustable color temperature LED of a red LED chip, a yellow light LED chip, a green light LED chip, the manufacturing of a blue-light LED chip assembled package or single high colour developing fixedly color temperature white light LED also be subjected to this patent protection.The white-light illuminating light fixture, white-light illuminating equipment and the white-light emitting body that adopt patented method of the present invention to make all are subjected to this patent protection.
Claims (6)
1. the method for a red, yellow, green and blue LED combination acquisition white light with high color development and adjustable color temperature, is characterized in that, comprises the following steps:
(1) according to the relative spectral power distribution of red-light LED, yellow light LED, green light LED and blue-ray LED, determine the logical percentage of light of ruddiness, gold-tinted, green glow and blue light under required LED combination white light reference color temperature by analogue simulation; The peak wavelength of described red-light LED is 620～650nm; The peak wavelength of described yellow light LED is 575～595nm; The peak wavelength of described green light LED is 515～535nm; The peak wavelength of described blue-ray LED is 450～470nm;
(2) selection red-light LED composition red-light LED loop, and connect with the ruddiness control circuit; Selection yellow light LED composition yellow light LED loop, and connect with the gold-tinted control circuit; Selection green light LED composition green light LED loop, and connect with the green glow control circuit; Selection blue-ray LED composition blue-ray LED loop, and connect with the blue light control circuit;
(3) relation of and drive current logical according to the light in red-light LED loop, yellow light LED loop, green light LED loop and blue-ray LED loop is determined the drive current in red-light LED loop, yellow light LED loop, green light LED loop and blue-ray LED loop;
(4) by corresponding control circuit, provide definite drive current to red-light LED loop, yellow light LED loop, green light LED loop and blue-ray LED loop respectively, thereby obtain the high-color rendering white-light under required colour temperature.
2. red, yellow, green and blue LED combination according to claim 1 obtains the method for white light with high color development and adjustable color temperature, it is characterized in that, the peak wavelength of described red-light LED is 630～640nm; The peak wavelength of described yellow light LED is 580～590nm; The peak wavelength of described green light LED is 520～530nm; The peak wavelength of described blue-ray LED is 455～465nm.
3. red, yellow, green and blue LED combination according to claim 1 obtains the method for white light with high color development and adjustable color temperature, it is characterized in that, described required LED combination white light reference color temperature is 2700K～6500K.
4. red, yellow, green and blue LED combination according to claim 1 obtains the method for white light with high color development and adjustable color temperature, it is characterized in that, described high-color rendering white-light carries out the logical adjusting of light by described ruddiness control circuit, gold-tinted control circuit, green glow control circuit, blue light control circuit and colour temperature is regulated.
5. red, yellow, green and blue LED according to claim 1 combination obtains the method for white light with high color development and adjustable color temperature, it is characterized in that, described red-light LED loop is carried out serial or parallel connection or string and mixing by one or at least two red-light LEDs and connected to form; Described yellow light LED loop is carried out serial or parallel connection or string and mixing by one or at least two yellow light LEDs and is connected to form; Described green light LED loop is carried out serial or parallel connection or string and mixing by one or at least two green light LEDs and is connected to form; Described blue-ray LED loop is carried out serial or parallel connection or string and mixing by one or at least two blue-ray LEDs and is connected to form.
6. red, yellow, green and blue LED combination according to claim 5 obtains the method for white light with high color development and adjustable color temperature, it is characterized in that, several light according to described required LED combination white light light logical big or small and single red-light LED, yellow light LED, green light LED and blue-ray LED of described red-light LED, yellow light LED, green light LED and blue-ray LED lead to determine.
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| CN102182942A (en) * | 2011-03-28 | 2011-09-14 | 浙江英特来光电科技有限公司 | LED white lamp provided with red/yellow light chips |
| CN103486466B (en) * | 2013-08-26 | 2015-07-08 | 深圳大学 | LED (light-emitting diode) lamp |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1818774A (en) * | 2005-02-10 | 2006-08-16 | 安捷伦科技有限公司 | Improved studio light |
| CN1929710A (en) * | 2005-09-05 | 2007-03-14 | 林文钦 | White light-emitting device capable of regulating color temperature |
| CN201122595Y (en) * | 2007-11-30 | 2008-09-24 | 和谐光电科技（泉州）有限公司 | LED capable of adjusting color temperature and developing color |
| CN201232879Y (en) * | 2008-07-22 | 2009-05-06 | 深圳市同洲电子股份有限公司 | High color rendering property LED lamp |
-
2010
- 2010-03-25 CN CN 201010132441 patent/CN101801139B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1818774A (en) * | 2005-02-10 | 2006-08-16 | 安捷伦科技有限公司 | Improved studio light |
| CN1929710A (en) * | 2005-09-05 | 2007-03-14 | 林文钦 | White light-emitting device capable of regulating color temperature |
| CN201122595Y (en) * | 2007-11-30 | 2008-09-24 | 和谐光电科技（泉州）有限公司 | LED capable of adjusting color temperature and developing color |
| CN201232879Y (en) * | 2008-07-22 | 2009-05-06 | 深圳市同洲电子股份有限公司 | High color rendering property LED lamp |
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