CN201925773U - LED (light-emitting diode) light source module with adjustable color temperature and color rendering index (CRI) - Google Patents
LED (light-emitting diode) light source module with adjustable color temperature and color rendering index (CRI) Download PDFInfo
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- CN201925773U CN201925773U CN2010206925889U CN201020692588U CN201925773U CN 201925773 U CN201925773 U CN 201925773U CN 2010206925889 U CN2010206925889 U CN 2010206925889U CN 201020692588 U CN201020692588 U CN 201020692588U CN 201925773 U CN201925773 U CN 201925773U
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Abstract
The utility model discloses an LED (light-emitting diode) light source module with adjustable color temperature and color rendering index (CRI), which comprises a first LED wafer component emitting white light and a second LED wafer component emitting homogeneous light, wherein the first and the second LED wafer components are respectively and electrically connected with the outside so as to separately adjust the luminous intensity of the second LED wafer component. In the utility model, two LED wafers are arranged and respectively supplied with power to adjust the drive current of the second LED wafer component or to adjust the luminous intensity of the second LED wafer component through using current subjected to the PMW (pulse width modulation); with the increase of the luminous intensity of the second LED wafer, the LED color temperature gradually reduces; and meanwhile, the red light elements in a mixture spectrum are more and more, and the color rendering index gradually rises so as to achieve adjustable color temperature and adjustable color rendering index.
Description
Technical field
The utility model belongs to field of semiconductor illumination, relates to LED (light emitting diode) encapsulation technology, is specifically related to the adjustable led light source module of a kind of colour temperature and colour rendering index.
Background technology
In recent years, LED is applied to illumination more and more.
The white light LEDs production technology mainly is divided into two big main flows in the market, and first for to utilize fluorescent material that blue light or the ultraviolet light that blue-ray LED or ultraviolet LED produced is converted to dual wavelength or three-wavelength white light respectively, and this technology is referred to as fluorescent material conversion of white light LED.Second class then is how chip-shaped white light LEDs, makes up to form white light via the LED that makes up two or more different color light.
The white light of high colour temperature during first method can obtain, warm colour temperature, colour rendering are relatively poor.In order to address this problem, add red fluorescence powder usually, but the launching efficiency of red fluorescence powder to be lower, thereby to cause the whole light efficiency of LED on the low side.Second method then needs to give respectively multiple wafer power supply, the drive circuit complexity, and the aging decay of every kind of wafer is inconsistent, and the long-term work meeting causes the colour temperature skew.
Summary of the invention
In view of this, technical problem to be solved in the utility model has provided a kind of colour temperature and the adjustable led light source module of colour rendering index.
In order to solve the problems of the technologies described above, the utility model has disclosed a kind of colour temperature and the adjustable led light source module of colour rendering index, comprise: send a LED wafer assemblies of white light and send monochromatic the 2nd LED wafer assemblies, the first and second LED wafer assemblies are connected the luminous intensity with described the 2nd LED wafer assemblies of independent adjusting respectively with external electrical.
Further, a described LED wafer assemblies comprises: one or more LED wafers and the fluorescent material that is covered on the described LED wafer, and a described LED wafer is launched the light that a wave-length coverage is 430 nanometer to 490 nanometers; Described fluorescent material is launched the light that a wave-length coverage is 540 nanometer to 580 nanometers.
Further, a described LED wafer assemblies comprises: one or more LED wafers and the fluorescent material that is covered on the described LED wafer, and a described LED wafer is launched the light of one 457.5 nanometers; Described fluorescent material is launched the light of one 570 nanometers.
Further, described the 2nd LED wafer assemblies comprises at least: one or more the 2nd LED wafers, described the 2nd LED wafer is launched the light that a wave-length coverage is 600 nanometer to 650 nanometers.
Further, described the 2nd LED wafer assemblies comprises at least: one or more the 2nd LED wafers, described the 2nd LED wafer is launched the light of one 625 nanometers.
Further, the luminous intensity that the first and second LED wafers are connected with external electrical respectively so that described the 2nd LED wafer assemblies is regulated the 2nd LED wafer by the electric current of regulating its drive current or the pulse width modulation of use process.
Further, adopt full series connection, full parallel connection or series and parallel circuit to connect between the described a plurality of LED wafer; Adopt full series connection, full parallel connection or series and parallel circuit to connect between described a plurality of the 2nd LED wafer.
Further, a described LED wafer and the 2nd LED wafer are spaced.
Further, also comprise two pads at least, a plurality of LED wafers are fixed on a pad by certain arrangement mode, and a plurality of the 2nd LED wafers are fixed on another pad by the same row mode for cloth, and described two pad interfolded so that a described LED wafer and the 2nd LED wafer form and be spaced.
Further, also comprise two connectors at least, the first and second LED wafer assemblies are connected to a connector respectively so that be connected luminous intensity with described the 2nd LED wafer assemblies of independent adjusting with external electrical.
Compare the technique effect that the utility model obtained with existing scheme:
The utility model is by being provided with two groups of LED wafers, and power for two groups of LED wafers respectively, regulate the drive current of the 2nd LED wafer or use the luminous intensity of regulating the 2nd LED wafer through the electric current of pulse width modulation (PMW), increase along with the 2nd LED wafer luminous intensity, the colour temperature of LED can reduce gradually, the ruddiness composition is more and more in the mixed spectra simultaneously, and colour rendering index can improve gradually, thereby realization colour temperature and colour rendering index are adjustable;
In addition, use connector to be convenient to LED and be connected, also be convenient to change simultaneously LED with external electrical.
Description of drawings
Fig. 1 is the vertical view of the led light source module of the utility model embodiment.
Fig. 2 is the side view of the led light source module of the utility model embodiment.
Fig. 3 is the colour temperature of the reaction LED of the utility model embodiment, the chromatic diagram that chromaticity coordinates changes.
Relate to following components and parts among Fig. 1-2: base plate for packaging 1, pad group 2 (comprising pad 2-1 and pad 2-2), a LED wafer 3, the 2nd LED wafer 4, lead-in wire 5, fluorescent material 6, the first connector 7-1 and the second connector 7-2.
The specific embodiment
Below will cooperate graphic and example describes embodiment of the present utility model in detail, by this to the utility model how the application technology means implementation procedure that solves technical problem and reach the technology effect can fully understand and implement according to this.
Core idea of the present utility model is: send a LED wafer assemblies of white light and send monochromatic the 2nd LED wafer assemblies, a LED wafer assemblies and the 2nd LED wafer assemblies are connected the luminous intensity with described the 2nd LED wafer assemblies of independent adjusting respectively with external electrical.
Below to send wave-length coverage with the 2nd LED wafer assemblies be that the monochromatic light of 600nm to 650nm is that example describes.
As illustrated in fig. 1 and 2, be the schematic diagram of the led light source module of the utility model embodiment, the led light source module comprises: base plate for packaging 1, pad group 2 (comprising pad 2-1 and pad 2-2), a LED wafer 3, the 2nd LED wafer 4, lead-in wire 5, fluorescent material 6, the first connector 7-1 and the second connector 7-2.
Arrange earlier two pad 2-1 and 2-2 on the relevant position of base plate for packaging 1, the relative interfolded with 2-2 of pad 2-1 makes the also interfolded of solid brilliant position on the pad, and pad 2-1 and 2-2 power respectively.
The lead-in wire bonding is upward realized by lead-in wire 5 in the solid brilliant position that a plurality of LED wafers 3 is fixed on pad 2-1 according to necessarily arranging, a plurality of the 2nd LED wafers 4 are upward realized the lead-in wire bonding by lead-in wire 5 according to the solid brilliant position that same arranging is fixed on pad 2-2, thereby a plurality of LED wafers 3 and 4 formation of a plurality of the 2nd LED wafer are spaced by the interfolded of pad 2-1 and 2-2.Preferably as among Fig. 1, from left to right, first and third, five, seven row are a LED wafer 3, the second, four, six row are the 2nd LED wafer 4; The one LED wafer 3 can adopt full series connection, full parallel connection or series and parallel circuit, and the 2nd LED wafer 4 can adopt full series connection, full parallel connection or series and parallel circuit.
On a LED wafer 3 and the 2nd LED wafer 4, apply fluorescent material 6 again, at last the first connector 7-1 and the second connector 7-2 are welded on the base plate for packaging 1, the first connector 7-1, the second connector 7-2 draw the circuit of pad 2-1,2-2 respectively to connect external electrical.Apply a LED wafer 3 of fluorescent material 6, be equivalent to the LED wafer assemblies that an integral body is sent white light; Apply the 2nd LED wafer 4 of fluorescent material 6, be equivalent to the 2nd LED wafer assemblies that an integral body is sent ruddiness.
In above-mentioned the utility model, base plate for packaging 1 can be that materials such as high-thermal conductive metals such as aluminium, copper or alloy are made, and also can be ceramic substrate; Fluorescent material 6 is the mixture of particulate powder and silica gel etc.
In the present embodiment, a LED wafer and the 2nd LED wafer are connected luminous intensity with described the 2nd LED wafer of independent adjusting by connector respectively with external electrical, use connector to be convenient to LED and be connected with external electrical, and the while also is convenient to change LED.
The one LED wafer can be launched the light of first wave-length coverage, and first wave-length coverage is 430 to 490nm, preferred here 457.5nm; The emission wavelength of fluorescent material is 540nm to 580nm, preferred here 570nm; The blue light of emission 457.5nm after LED wafer energising, this blue light illumination is the fluorescent material of 570nm to emission wavelength, encourages described fluorescent material to mix and sends white light.
Simultaneously, the 2nd LED wafer is launched the light of second wave-length coverage, and second wave-length coverage is 600nm to 650nm, preferred here 625nm; Drive current by regulating the 2nd LED wafer or use the luminous intensity of regulating the 2nd LED wafer through the electric current of pulse width modulation (PMW); Along with the increase of the 2nd LED wafer luminous intensity, the colour temperature of LED can reduce gradually, and the ruddiness composition is more and more in the mixed spectra simultaneously, and colour rendering index can improve gradually, thereby realization colour temperature and colour rendering index are adjustable.
Certain requirement of having chosen to the excitation wavelength of fluorescent material, make it only be subjected to the excitation of the light of first wave-length coverage, and can not be subjected to the excitation of the light of second wave-length coverage, therefore second wave-length coverage of light launch to(for) the 2nd LED wafer can not encouraged by fluorescent material.
Fig. 3 is the colour temperature of the reaction LED of the utility model embodiment, the chromatic diagram that chromaticity coordinates changes.
The blue light of the one LED wafer energising back emission 457.5nm, this blue light illumination is the fluorescent material of 570nm to emission wavelength, can mix to obtain the white light that colour temperature is 5000K.
The light of the 2nd LED wafer emission 625nm, by increasing the drive current of the 2nd LED wafer, its luminous intensity progressively increases, and the mixing colour temperature of LED progressively becomes 4500K, 4000K, 3500K, 3300K from 5000K, its colour rendering index also can progressively improve, and can reach more than 95.
Above-mentioned explanation illustrates and has described some preferred embodiments of the present utility model, but as previously mentioned, be to be understood that the utility model is not limited to the disclosed form of this paper, should not regard eliminating as to other embodiment, and can be used for various other combinations, modification and environment, and can in utility model contemplated scope described herein, change by the technology or the knowledge of above-mentioned instruction or association area.And change that those skilled in the art carried out and variation do not break away from spirit and scope of the present utility model, then all should be in the protection domain of the utility model claims.
Claims (10)
1. colour temperature and the adjustable LED light source module of colour rendering index, it is characterized in that, comprise: send a LED wafer assemblies of white light and send monochromatic the 2nd LED wafer assemblies, a LED wafer assemblies and the 2nd LED wafer assemblies are connected the luminous intensity with described the 2nd LED wafer assemblies of independent adjusting respectively with external electrical.
2. the adjustable led light source module of colour temperature as claimed in claim 1 and colour rendering index, it is characterized in that, a described LED wafer assemblies, comprise: one or more LED wafers and the fluorescent material that is covered on the described LED wafer, a described LED wafer is launched the light that a wave-length coverage is 430 nanometer to 490 nanometers; Described fluorescent material is launched the light that a wave-length coverage is 540 nanometer to 580 nanometers.
3. the adjustable led light source module of colour temperature as claimed in claim 1 and colour rendering index, it is characterized in that, a described LED wafer assemblies, comprise: one or more LED wafers and the fluorescent material that is covered on the described LED wafer, a described LED wafer is launched the light that a wavelength is 457.5 nanometers; Described fluorescent material is launched the light that a wavelength is 570 nanometers.
4. as claim 2 or 3 described colour temperatures and the adjustable led light source module of colour rendering index, it is characterized in that, described the 2nd LED wafer assemblies comprises at least: one or more the 2nd LED wafers, described the 2nd LED wafer is launched the light that a wave-length coverage is 600 nanometer to 650 nanometers.
5. the adjustable led light source module of colour temperature as claimed in claim 4 and colour rendering index is characterized in that, described the 2nd LED wafer assemblies comprises at least: one or more the 2nd LED wafers, described the 2nd LED wafer is launched the light that a wavelength is 625 nanometers.
6. the adjustable led light source module of colour temperature as claimed in claim 5 and colour rendering index, it is characterized in that the luminous intensity that a LED wafer is connected with external electrical respectively with the 2nd LED wafer so that described the 2nd LED wafer assemblies is regulated the 2nd LED wafer by the electric current of regulating its drive current or the pulse width modulation of use process.
7. the adjustable led light source module of colour temperature as claimed in claim 5 and colour rendering index is characterized in that, adopts full series connection, full parallel connection or series and parallel circuit to connect between the described LED wafer; Adopt full series connection, full parallel connection or series and parallel circuit to connect between described the 2nd LED wafer.
8. the adjustable led light source module of colour temperature as claimed in claim 5 and colour rendering index is characterized in that, a described LED wafer and the 2nd LED wafer are spaced.
9. the adjustable led light source module of colour temperature as claimed in claim 5 and colour rendering index, it is characterized in that, also comprise two pads at least, a described LED wafer is fixed on a pad by certain arrangement mode, described the 2nd LED wafer is fixed on another pad by the same row mode for cloth, and described two pad interfolded so that a described LED wafer and the 2nd LED wafer form and be spaced.
10. the adjustable led light source module of colour temperature as claimed in claim 1 and colour rendering index, it is characterized in that, also comprise two connectors at least, a described LED wafer is connected to a connector respectively with the 2nd LED wafer assemblies so that be connected luminous intensity with described the 2nd LED wafer assemblies of independent adjusting with external electrical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206925889U CN201925773U (en) | 2010-12-22 | 2010-12-22 | LED (light-emitting diode) light source module with adjustable color temperature and color rendering index (CRI) |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206925889U CN201925773U (en) | 2010-12-22 | 2010-12-22 | LED (light-emitting diode) light source module with adjustable color temperature and color rendering index (CRI) |
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| CN201925773U true CN201925773U (en) | 2011-08-10 |
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| CN2010206925889U Expired - Fee Related CN201925773U (en) | 2010-12-22 | 2010-12-22 | LED (light-emitting diode) light source module with adjustable color temperature and color rendering index (CRI) |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102932988A (en) * | 2012-09-24 | 2013-02-13 | 王习之 | Method and circuit for increasing light emitting diode (LED) light source module color rendering index with low cost |
| CN102958256A (en) * | 2012-10-30 | 2013-03-06 | 福建鸿博光电科技有限公司 | Method, device and lamp for adjusting light distribution curve of light emitting diode (LED) |
| CN103939779A (en) * | 2014-04-18 | 2014-07-23 | 江苏新广联绿色照明工程有限公司 | LED panel lamp allowing color temperature and color rendering index to be adjustable |
| CN106465510A (en) * | 2014-03-20 | 2017-02-22 | 东芝高新材料公司 | Light-emitting device and LED light bulb |
| CN107134244A (en) * | 2017-03-27 | 2017-09-05 | 利亚德光电股份有限公司 | Display device and display system |
| CN107420749A (en) * | 2017-07-25 | 2017-12-01 | 江苏集萃有机光电技术研究所有限公司 | The luminescent device of adjustable color temperature and colour rendering index, adjusting method and light fixture |
| CN109869690A (en) * | 2019-03-07 | 2019-06-11 | 奇瑞商用车（安徽）有限公司 | A kind of automobile front |
| CN110375208A (en) * | 2019-04-30 | 2019-10-25 | 上海智光慧芯照明科技有限公司 | A kind of LED module |
-
2010
- 2010-12-22 CN CN2010206925889U patent/CN201925773U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102932988A (en) * | 2012-09-24 | 2013-02-13 | 王习之 | Method and circuit for increasing light emitting diode (LED) light source module color rendering index with low cost |
| CN102958256A (en) * | 2012-10-30 | 2013-03-06 | 福建鸿博光电科技有限公司 | Method, device and lamp for adjusting light distribution curve of light emitting diode (LED) |
| CN106465510A (en) * | 2014-03-20 | 2017-02-22 | 东芝高新材料公司 | Light-emitting device and LED light bulb |
| CN106465510B (en) * | 2014-03-20 | 2019-10-01 | 东芝高新材料公司 | Light emitting device and LED bulb |
| CN103939779A (en) * | 2014-04-18 | 2014-07-23 | 江苏新广联绿色照明工程有限公司 | LED panel lamp allowing color temperature and color rendering index to be adjustable |
| CN107134244A (en) * | 2017-03-27 | 2017-09-05 | 利亚德光电股份有限公司 | Display device and display system |
| CN107420749A (en) * | 2017-07-25 | 2017-12-01 | 江苏集萃有机光电技术研究所有限公司 | The luminescent device of adjustable color temperature and colour rendering index, adjusting method and light fixture |
| CN107420749B (en) * | 2017-07-25 | 2020-06-02 | 江苏集萃有机光电技术研究所有限公司 | Light emitting device capable of adjusting color temperature and color rendering index, adjusting method and lamp |
| CN109869690A (en) * | 2019-03-07 | 2019-06-11 | 奇瑞商用车（安徽）有限公司 | A kind of automobile front |
| CN110375208A (en) * | 2019-04-30 | 2019-10-25 | 上海智光慧芯照明科技有限公司 | A kind of LED module |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: GUANGZHOU LAMPEARL ENERGY EFFICIENT CO., LTD. Free format text: FORMER OWNER: BEIJING LAMPOWER PHOTOELECTRIC CO., LTD. Effective date: 20120104 |
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| C41 | Transfer of patent application or patent right or utility model | ||
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Free format text: CORRECT: ADDRESS; FROM: 100176 DAXING, BEIJING TO: 510623 GUANGZHOU, GUANGDONG PROVINCE |
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| TR01 | Transfer of patent right |
Effective date of registration: 20120104 Address after: Tianhe District Huali road Guangzhou City, Guangdong province 510623 Guangzhou City No. 59 East 15 storey tower by room 1503 Patentee after: Guangzhou long wave energy saving Technology Co., Ltd. Address before: 100176, No. two, No. 28, Hai Lu, Beijing economic and Technological Development Zone, Beijing Patentee before: Beijing Lampearl Photoelectric Co.,Ltd. |
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| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110810 Termination date: 20131222 |