CN102434858A - Circuit board and bulb lamp - Google Patents
Circuit board and bulb lamp Download PDFInfo
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- CN102434858A CN102434858A CN2011104515855A CN201110451585A CN102434858A CN 102434858 A CN102434858 A CN 102434858A CN 2011104515855 A CN2011104515855 A CN 2011104515855A CN 201110451585 A CN201110451585 A CN 201110451585A CN 102434858 A CN102434858 A CN 102434858A
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- white light
- circuit board
- bulb lamp
- light emitting
- emitting diode
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Abstract
The invention provides a circuit board. A plurality of white-light LEDs (Light-Emitting Diodes) are attached to the circuit board, and include first white-light LEDs emitting light of a first wavelength and second white-light LEDs emitting light with shorter wavelength than the first wavelength, wherein the first white-light LEDs and the second white-light LEDs are attached to the circuit board in the ratio of 1:1. The circuit board and a lampshade covered on the circuit board are arranged in a bulb lamp; and parameters of the bulb lamp are that: the color temperature is 6,000+/-500K, the color rendering index is more than or equal to 70, and the light flux of a single LED is more than or equal to 7.0 under the condition that constant-current IF is 20mA. By attaching the two types of white-light LEDs in a hybrid way, the electric parameter requirement of the bulb lamp can be met, and the requirements of a customer are met. Meanwhile, two types of white-light LEDs which do not meet the electric parameter requirement of the bulb lamp are utilized, so that the application range of an in-plant chip can be expanded, the supply ability of a supplier can be increased, all produced chips of the supplier are absorbed, the chip purchasing cost is reduced, the product competitiveness is improved, and great commercial success is achieved.
Description
Technical field
The invention belongs to lighting field, relate in particular to a kind of bulb lamp and circuit board thereof.
Background technology
Be applied to SMD (SMD) the white light product of illuminating industry at present,, show requirements such as index because of its high light efficiency with respect to conventional light source; Launching efficiency with the suitable fluorescent material of low wavelength (445-457.5nm) chip collocation is best, and the same model chip of the LED encapsulation common white light of factory operation scope that is to say at 5nm; The wavelength of the SMD white light product that encapsulates differs at 5nm; So, limit the buying scope of chip virtually, improved the purchase cost of chip.
Summary of the invention
The object of the present invention is to provide a kind of circuit board and bulb lamp, be intended to solve the narrower problem of existing encapsulation factory's chip buying scope, and then widen the chip scope of application, reduce purchase cost.
Circuit board of the present invention is achieved in that a kind of circuit board; Post some white light emitting diodes on it; Said white light emitting diode comprises first white light emitting diode of the light that sends first wavelength and second white light emitting diode of the light that sends second wavelength shorter than first wavelength, and said first white light emitting diode and second white light emitting diode mix with the 1:1 ratio and be affixed on the said circuit board.
Further, said first white light emitting diode and second white light emitting diode are alternately arrangement of strip.
Further, said first white light emitting diode and second white light emitting diode are the matrix cross arrangement.
Further, said first wavelength is between 460-462.5nm, and second wavelength is between 452.5-455nm.
Further, the colour rendering index of said first white light emitting diode is between 75 to 90, and the colour rendering index of second white light emitting diode is between 65-75, and the colour rendering index after mixed the subsides is greater than 70.
Bulb lamp of the present invention is achieved in that and is provided with the foregoing circuit plate in the said bulb lamp and is placed on the lampshade on the said circuit board; Each parameter of said bulb lamp is: colour temperature: 6000 ± 500K; Colour rendering index >=70, under constant current IF=20mA condition, the luminous flux of single LEDs >=7.0.
After mixing and paste, the white light LEDs of two kinds of different wave lengths can reach the electrical parameter requirement of bulb lamp; Satisfy requirement of client, two kinds of white light LEDs will being discontented with the requirement of sufficient bulb lamp electrical parameter simultaneously use, and can widen the scope of application of chip in the factory and supplier's availability; Thereby absorb whole output chips of supplier; Reduce chip buying finished product, promote product competitiveness, in the commercial great success that obtained.
Description of drawings
Fig. 1 is the front view of circuit board of side view and the bulb lamp of bulb lamp provided by the invention.
Fig. 2 is the strip of the white light emitting diode on the circuit board of bulb lamp of Fig. 1 sketch map of arranging.
Fig. 3 is the matrix of the white light emitting diode on the circuit board of bulb lamp of Fig. 1 sketch map of arranging.
Fig. 4 is the spectrogram of the bulb lamp of Fig. 1, and wherein, the used white light emitting diode of bulb lamp is the light that sends the 460-462.5nm wavelength entirely.
Fig. 5 is the spectrogram of the bulb lamp of Fig. 1, and wherein, the used white light emitting diode of bulb lamp is the light that sends the 452.5-455nm wavelength entirely.
Fig. 6 is the spectrogram of the bulb lamp of Fig. 1; Wherein, the used white light emitting diode of bulb lamp is that the white light emitting diode of white light emitting diode and the light that sends the 452.5-455nm wavelength that sends the light of 452.5-455nm wavelength mixes with the arranged of 1:1 ratio and pastes.
The specific embodiment
In order to make the object of the invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
The white light LEDs that is used to throw light on (light emitting diode) product, usually to colour temperature, colour rendering index, light efficiency etc. all have specific requirement.With a certain high colour developing product of the bulb lamp of Fig. 1 is example, specific requirement: colour temperature: 6000 ± 500K, and colour rendering index >=70, under constant current IF=20mA condition, the luminous flux of single LEDs >=7.0.
In the prior art; Single LEDs product of above electrical parameter requirement is satisfied in making, and is applied on the bulb lamp, and this bulb lamp is very high to single LEDs requirement of products; If do not reach desired electrical parameter index; Single LEDs product just can not be used for bulb lamp, has limited the buying scope of chip virtually, has improved the purchase cost of chip.The present invention has provided the technical scheme that solves these technical problems.
The present invention mixes the parameter request that subsides reach bulb lamp through the LED of two kinds of different spectrum.Practical implementation is as mentioned below.
See also Fig. 1, the bulb lamp that the embodiment of the invention provides comprises a shell 10, is arranged at the circuit board 20 in the shell 10 and is placed on the lampshade 30 on the said circuit board 20.
First white light LEDs 21 of the light that posts luminous first wavelength (more than the 457.5nm) on the said circuit board 20 and send second white light LEDs 23 of the light of second wavelength (457.5nm below).Obviously, first wavelength is longer than second wavelength.Said first white light LEDs 21 and second white light LEDs 23 mix with the 1:1 ratio and are affixed on the said circuit board 20.Please consult Fig. 2 simultaneously, said first white light LEDs 21 and second white light LEDs 23 are strip and alternately arrange.So-called strip is alternately arranged and is meant that first white light LEDs 21 is arranged in a row, and second white light LEDs 23 is arranged in a row, and then, two row LED alternately are affixed on the circuit board 20.Please consult Fig. 3 simultaneously, said first white light LEDs 21 and second white light LEDs 23 are the matrix cross arrangement, and so-called matrix cross arrangement is meant that one first white light LEDs 21 and one second white light LEDs 23 replace arrangement and be the matrix form.Particularly, said first wavelength is between 460-462.5nm, and second wavelength is between 452.5-455nm.The colour rendering index of said first white light emitting diode is between 75 to 90, and the colour rendering index of second white light emitting diode is between 65-75, and the colour rendering index after mixed the subsides is greater than 70.
The present invention is applied to respectively on the bulb lamp with the matrix cross arrangement with two kinds of white light LEDs 21,23 and two kinds of white light LEDs 21,23 mix with the cross arrangement of 1:1 ratio matrix and are applied to that resultant electrical parameter compares on the bulb lamp after pasting, and beneficial effect of the present invention is described.
The electrical parameter of two kinds of white light LEDs 21,23 is as shown in table 1:
The electrical parameter contrast of two kinds of white light LEDs of table 1
See also Fig. 4 and Fig. 5, Fig. 4 and Fig. 5 are that two kinds of white light LEDs 21,23 are applied to resulting spectrogram on the bulb lamp respectively, and wherein transverse axis is represented wavelength, and the longitudinal axis is represented light intensity.It is thus clear that the light wave scope is at 380-760nm, the corresponding various colors of different wave length, just corresponding different electromagnetic frequencies.Fig. 4 and spectrum shown in Figure 5 are the typical white light LEDs curves of spectrum, and left side blue light crest representes that led chip belongs to blue chip, and the yellowish green crest in the right is the spectrum that blue-light excited fluorescent material discharges.
Please consult Fig. 6 simultaneously, Fig. 6 is applied to resultant spectrogram on the bulb lamp after two kinds of white light LEDs 21,23 mix subsides with the cross arrangement of 1:1 ratio matrix.Two kinds of white light LEDs 21,23 mix with the cross arrangement of 1:1 ratio matrix that to be applied on the bulb lamp resultant electrical parameter after pasting as shown in table 2.
Table 2 is applied to resultant electrical parameter on the bulb lamp after mixing subsides with the cross arrangement of 1:1 ratio matrix
Hence one can see that, can reach the electrical parameter requirement of bulb lamp after two kinds of white light LEDs 21,23 mix and paste, and satisfies requirement of client; The two kinds of white light LEDs 21,23 that to be discontented with the requirement of sufficient bulb lamp electrical parameter simultaneously use; Can widen the scope of application of chip in the factory and supplier's availability, thereby absorb whole output chips of supplier, reduce chip buying finished product; Promote product competitiveness, in the commercial great success that obtained.
Above gained spectrum obtains through distant place photoelectric test system, constant current IF=20mA test.
The above is merely preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of within spirit of the present invention and principle, being done, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (6)
1. circuit board; Post some white light emitting diodes on it; It is characterized in that: said white light emitting diode comprises first white light emitting diode of the light that sends first wavelength and second white light emitting diode of the light that sends second wavelength shorter than first wavelength, and said first white light emitting diode and second white light emitting diode mix with the 1:1 ratio and be affixed on the said circuit board.
2. circuit board as claimed in claim 1 is characterized in that: said first white light emitting diode and second white light emitting diode are strip and alternately arrange.
3. circuit board as claimed in claim 1 is characterized in that: said first white light emitting diode and second white light emitting diode are the matrix cross arrangement.
4. circuit board as claimed in claim 1 is characterized in that: said first wavelength is between 460-462.5nm, and second wavelength is between 452.5-455nm.
5. circuit board as claimed in claim 1 is characterized in that: the colour rendering index of said first white light emitting diode is between 75 to 90, and the colour rendering index of second white light emitting diode is between 65-75, and the colour rendering index after mix pasting is greater than 70.
6. bulb lamp; It is characterized in that: be provided with like each described circuit board of claim 1-5 in the said bulb lamp and be placed on the lampshade on the said circuit board; Each parameter of said bulb lamp is: colour temperature: 6000 ± 500K; Colour rendering index >=70, under constant current IF=20mA condition, the luminous flux of single LEDs >=7.0.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104515855A CN102434858A (en) | 2011-12-29 | 2011-12-29 | Circuit board and bulb lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104515855A CN102434858A (en) | 2011-12-29 | 2011-12-29 | Circuit board and bulb lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102434858A true CN102434858A (en) | 2012-05-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011104515855A Pending CN102434858A (en) | 2011-12-29 | 2011-12-29 | Circuit board and bulb lamp |
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| CN (1) | CN102434858A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102900973A (en) * | 2012-09-10 | 2013-01-30 | 常熟卓辉光电科技有限公司 | White light emitting diode (LED) light source |
Citations (6)
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|---|---|---|---|---|
| CN101271939A (en) * | 2007-03-23 | 2008-09-24 | 光宝科技股份有限公司 | Luminous device with open loop control and production method thereof |
| CN101701673A (en) * | 2009-11-11 | 2010-05-05 | 林信义 | Color mixing method of high color rendering index of LED |
| CN101886767A (en) * | 2010-08-09 | 2010-11-17 | 中国计量学院 | LED bulb lamp with high color rendering index and high illumination efficiency |
| CN101949514A (en) * | 2010-09-27 | 2011-01-19 | 友达光电股份有限公司 | Backlight module for liquid crystal display |
| CN102036435A (en) * | 2009-09-28 | 2011-04-27 | 财团法人工业技术研究院 | Light color toning method and light color variable light-emitting diode light source module |
| CN102278621A (en) * | 2011-04-22 | 2011-12-14 | 深圳市瑞丰光电子股份有限公司 | White light emitting diode (LED) module with adjustable color temperature, illumination equipment and manufacturing method |
-
2011
- 2011-12-29 CN CN2011104515855A patent/CN102434858A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101271939A (en) * | 2007-03-23 | 2008-09-24 | 光宝科技股份有限公司 | Luminous device with open loop control and production method thereof |
| CN102036435A (en) * | 2009-09-28 | 2011-04-27 | 财团法人工业技术研究院 | Light color toning method and light color variable light-emitting diode light source module |
| CN101701673A (en) * | 2009-11-11 | 2010-05-05 | 林信义 | Color mixing method of high color rendering index of LED |
| CN101886767A (en) * | 2010-08-09 | 2010-11-17 | 中国计量学院 | LED bulb lamp with high color rendering index and high illumination efficiency |
| CN101949514A (en) * | 2010-09-27 | 2011-01-19 | 友达光电股份有限公司 | Backlight module for liquid crystal display |
| CN102278621A (en) * | 2011-04-22 | 2011-12-14 | 深圳市瑞丰光电子股份有限公司 | White light emitting diode (LED) module with adjustable color temperature, illumination equipment and manufacturing method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102900973A (en) * | 2012-09-10 | 2013-01-30 | 常熟卓辉光电科技有限公司 | White light emitting diode (LED) light source |
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Application publication date: 20120502 |