CN103227269A - LED light source module and dimming method thereof - Google Patents
LED light source module and dimming method thereof Download PDFInfo
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- CN103227269A CN103227269A CN2013101606673A CN201310160667A CN103227269A CN 103227269 A CN103227269 A CN 103227269A CN 2013101606673 A CN2013101606673 A CN 2013101606673A CN 201310160667 A CN201310160667 A CN 201310160667A CN 103227269 A CN103227269 A CN 103227269A
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 5
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Abstract
The invention provides an LED (light-emitting diode) light source module and a dimming method thereof. The LED light source module comprises an LED light-emitting chip and fluorescent sheets, wherein positions and angles of the fluorescent sheets are adjustably arranged at the front of a light emergence direction of the LED light-emitting chip, and distances are kept between the fluorescent sheets and the LED light-emitting chip. The invention also provides the dimming method. An effect of adjusting emergent light can be achieved by adjusting the structural design of fluorescent layers to control absorption and emission of the fluorescent powder layers with different wavelengths. By adjusting the design of the fluorescent layers, the emergent light color temperature and a color rending index of the LED light source module can be adjusted; the defects of technological limitation, poor light mixture and color mixture effects, and poor photochromic adjustability in the prior art are overcome; the seperated structue of the light-emitting chip and the fluorescent layers of the LED light source module contributes to separated heat dissipation of the light-emitting chip and the fluorescent layers; the working temperature of the LED light source module can be reduced; the light-emitting efficiency can be further improved; and the service life of the LED light source module can be prolonged.
Description
Technical field
The present invention relates to lighting field, especially, relate to a kind of led light source module and led light source module light-dimming method.
Background technology
Existing tunable optical toning LED encapsulating structure be a kind of be integrated that many led light sources of sending out the different colours light are arranged, adjustment is by the size of current of excitation source, these led light sources, it generally is high-power LED, whole packaging cost height, packaging density is low, mixed light colour mixture weak effect, adjustable light color is poor, and need exploitation special driving power supply, also have and adopt COB(Chip On Board) encapsulation scheme, but be the simple two-dimensional plane mode, chip is not directly to contact with substrate, but earlier by the extremely low line layer of one deck conductive coefficient, the integral heat sink poor effect, and all be positioned at substrate surface, do not have the reflector, it is also bad to go out light effect, and the plastic packaging material lead frame and the base plate seals of pressing are bad, phenomenons such as glue can appear leaking, moisture in the environment and pernicious gas also infiltrate in the packaging body easily, reduce its useful life greatly, in addition, send out the arranging of chip of different colours light and also do not consider the effect of mixed light, be simple array, but the decay of blue light and reddish yellow light is inconsistent, photochromic drift is serious.And the luminescence chip setting in the circuit board, and radiating effect is poor, and luminescence chip is arranged on the PCB surface, do not have luminescent layer, and it is also bad that luminescence chip goes out light effect, and the glue phenomenon appears leaking in poor sealing easily between silica gel type body and the wiring board.
The mode of the most frequently used generation white light of LED is to utilize the blue chip excitated fluorescent powder, and the gold-tinted and the ruddiness that send by mixing residue blue light and fluorescent material are achieved.Fluorescent material evenly mixes the back with silica gel usually and directly is coated in the blue chip surface.But cause light that led chip launches under phosphor gel surface reflection and the effect of fluorescent material scattering-in because phosphor gel and blue chip closely contact, turn back to chip and absorbed by chip and cause a part of light loss; Simultaneously, the heat accumulation that chip and light-emitting phosphor produce causes junction temperature of chip and fluorescent material working temperature to raise together, and then causes chip and light-emitting phosphor efficient to reduce.Another technology path of LED illumination development, remote excitation has obtained development fast in recent years.Its technical characterstic is that blue chip is separated with fluorescent device, thereby has overcome the shortcoming of said chip extinction and heat radiation, and light efficiency is improved.
Summary of the invention
The object of the invention is to provide a kind of led light source module and led light source module light-dimming method, and is relatively poor or drive the technical problem of difficult design to solve led light source module light modulation efficient in the prior art.
For achieving the above object, the invention provides a kind of led light source module, comprise the LED luminescence chip; Save land the place ahead of the light direction that is arranged on the LED luminescence chip of flourescent sheet, position and adjustable angle, and and the LED luminescence chip between distance is arranged.
Further, flourescent sheet is a plurality of, is provided with at interval along light direction respectively.
Further, a plurality of flourescent sheets comprise first flourescent sheet and second flourescent sheet; First flourescent sheet is provided with the spaced apart first color fluorescent material district and the second color fluorescent material district; Second flourescent sheet is provided with spaced apart first color fluorescent material district and the clear area; First flourescent sheet and the second flourescent sheet position are provided with to change the bright dipping colour temperature of led light source module adjustablely.
Further, first flourescent sheet and second flourescent sheet are provided with rotatably.
Further, but first flourescent sheet and second flourescent sheet relative translation ground be provided with.
Further, the first color fluorescent material district is the yellow fluorescent powder district, and the second color fluorescent material district is the red fluorescence powder district.
Further, the emission wavelength of led light source is 400nm-480nm.
Further, first flourescent sheet is fixedly installed on the rotary fixing frame, and second flourescent sheet can be rotatably set on the rotary fixing frame.
Further, relative second flourescent sheet of first flourescent sheet is near the LED luminescence chip.
Further, flourescent sheet is the fluorescence lens.
Further, flourescent sheet is the silica gel sheet.
The present invention also provides a kind of led light source module light-dimming method, realizes the adjusting that the led light source module is gone out light effect by relative angle between the adjusting flourescent sheet and/or position.
The present invention has following beneficial effect:
By certain space length is set between chip and flourescent sheet, the heat that both are produced separates faster than the unsegregated light source module of tradition, makes it working temperature and reduces, and heat radiation is good, has improved luminous efficiency, and longer service life is used more stable.Adjust the light path of light, do not need to make especially the effect that driving power just can reach light modulation by luminescent material.
Except purpose described above, feature and advantage, the present invention also has other purpose, feature and advantage.With reference to figure, the present invention is further detailed explanation below.
Description of drawings
The accompanying drawing that constitutes the application's a part is used to provide further understanding of the present invention, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 is the schematic diagram according to led light source module of the present invention;
Fig. 2 is that first flourescent sheet according to led light source module of the present invention is installed in the schematic diagram (oblique line is represented yellow, and grid represent redness) on the rotary fixing frame; And
Fig. 3 is according to the schematic diagram of second flourescent sheet of led light source module of the present invention (oblique line is represented yellow, and blank representative is transparent).
Reference numeral in the accompanying drawing is as follows: 10, led light source; 20, flourescent sheet; 21, first flourescent sheet; 22, second flourescent sheet; 30, rotary fixing frame.
Embodiment
Below in conjunction with accompanying drawing embodiments of the invention are elaborated, but the multitude of different ways that the present invention can be defined by the claims and cover is implemented.
Referring to Fig. 1, according to a kind of led light source module of the present invention, LED luminescence chip; Save land the place ahead of the light direction that is arranged on the LED luminescence chip of flourescent sheet 20, position and adjustable angle, and and the LED luminescence chip between distance is arranged.Flourescent sheet 20 is arranged on the place ahead of luminescence chip, and and luminescence chip between distance is arranged.The emission wavelength of led light source 10 is 400nm-480nm.Based on the remote excitation fluorescent technique, the light path of initiative utilization adjusting phosphor powder layer rather than accent electric current and PCB design reach the purpose of light modulation.By certain space length is set between luminescence chip and flourescent sheet, make it working temperature and reduce, heat radiation is good, has improved luminous efficiency, and useful life is longer than traditional handicraft, uses more stable.
Referring to Fig. 1 to Fig. 3, flourescent sheet 20 is a plurality of, is provided with at interval along light direction respectively.A plurality of flourescent sheets 20 comprise first flourescent sheet 21 and second flourescent sheet 22; First flourescent sheet 21 is provided with the spaced apart first color fluorescent material district and the second color fluorescent material district; Second flourescent sheet 22 is provided with spaced apart first color fluorescent material district and the clear area; First flourescent sheet 21 and second flourescent sheet, 22 positions are provided with to change the bright dipping colour temperature of led light source module adjustablely.First flourescent sheet 21 and second flourescent sheet 22 are provided with rotatably, and its pivot center can run through first flourescent sheet 21 and second flourescent sheet 22; But first flourescent sheet 21 and second flourescent sheet, 22 relative translations ground are provided with.The first color fluorescent material district is the yellow fluorescent powder district, and the second color fluorescent material district is the red fluorescence powder district.Multilayer flourescent sheet 20 comprises that first flourescent sheet 21 of coaxial setting and the coaxial relative angle adjustable ground of second flourescent sheet, 22, the first flourescent sheets 21 and second flourescent sheet 22 are provided with.First flourescent sheet, 21 relative second flourescent sheets 22 are near blue chip.Utilize the coaxial design in relative rotation of first flourescent sheet 21 and second flourescent sheet 22 to regulate colour temperature and color rendering index, arranging of led chip do not considered the effect of mixed light in the solution prior art, and the problem of the light extraction efficiency difference of light modulation toning effect and chip, coaxial the relatively rotating of first flourescent sheet 21 and second flourescent sheet 22 can realize that the light modulation toning is effective, and broken away from the blue chip selection, and need not change existing current circuit project organization.
Referring to Fig. 2 to Fig. 3, first flourescent sheet 21 and second flourescent sheet 22 are circular.First flourescent sheet 21 is divided into six parts, yellow and red interphase distribution; Second flourescent sheet 22 is divided into six parts, yellow and transparent interphase distribution.First flourescent sheet 21 fixedly installs, but second flourescent sheet, 22 relative first flourescent sheet, 21 coaxial rotation.The led light source module comprises that also rotary fixing frame 30, the first flourescent sheets 21 are fixedly installed on the rotary fixing frame 30, and second flourescent sheet 22 can be rotatably set on the rotary fixing frame 30.Colour temperature and color rendering index are regulated in coaxial design in relative rotation by alternate first flourescent sheet 21 of reddish yellow and second flourescent sheet 22.
The present invention also provides a kind of light-dimming method, the position and the distance adjustment luminous intensity of incidence angle by regulating flourescent sheet or the light that sends with the LED luminescence chip.
According to light-dimming method of the present invention, flourescent sheet 20 is a plurality of concentric circles flourescent sheets, the flourescent sheet of each layer is provided with the fluorescent material of different wave length (color), thereby realizes adjusting the effect of white light by the phosphor powder layer ratio that the incidence angle that changes led light source 10 is arranged in pairs or groups out different.
A kind of led light source module light-dimming method, realize adjusting that the led light source module is gone out light effect by regulating relative angle between the flourescent sheet 20 and/or position, can regulate relative position or relative angle separately, perhaps the relativeness of regulating between the two simultaneously adjusts light effect.
As can be seen from the above description, the above embodiments of the present invention have realized following technique effect:
Realized adjusting by the design of adjusting fluorescence coating to led light source module bright dipping colour temperature and color rendering index, the process limitation of prior art and the shortcoming of mixed light colour mixture weak effect and adjustable light color difference have been overcome, its luminescence chip and fluorescence coating separated structures help the separately heat radiation of chip and fluorescence coating, reduce its working temperature, and then the raising luminous efficiency, the useful life of prolongation led light source module.
Be the preferred embodiments of the present invention only below, be not limited to the present invention, for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (12)
1. a led light source module is characterized in that, comprising:
The LED luminescence chip; Save land the place ahead of the light direction that is arranged on described LED luminescence chip of flourescent sheet (20), position and adjustable angle, and and described LED luminescence chip between distance is arranged.
2. led light source module according to claim 1 is characterized in that,
Described flourescent sheet (20) is a plurality of, is provided with at interval along described light direction respectively.
3. led light source module according to claim 1 and 2 is characterized in that,
A plurality of described flourescent sheets (20) comprise first flourescent sheet (21) and second flourescent sheet (22);
Described first flourescent sheet (21) is provided with the spaced apart first color fluorescent material district and the second color fluorescent material district;
Described second flourescent sheet (22) is provided with spaced apart first color fluorescent material district and the clear area;
Described first flourescent sheet (21) and described second flourescent sheet (22) position are provided with to change the bright dipping colour temperature of described led light source module adjustablely.
4. led light source module according to claim 3 is characterized in that, described first flourescent sheet (21) and described second flourescent sheet (22) are provided with rotatably.
5. led light source module according to claim 3 is characterized in that, described first flourescent sheet (21) and described second flourescent sheet (22) but relative translation ground be provided with.
6. according to claim 4 or 5 described led light source modules, it is characterized in that the described first color fluorescent material district is the yellow fluorescent powder district, the described second color fluorescent material district is the red fluorescence powder district.
7. led light source module according to claim 1 is characterized in that, the emission wavelength of described LED luminescence chip is 400nm to 480nm.
8. led light source module according to claim 3, it is characterized in that, also comprise rotary fixing frame (30), described first flourescent sheet (21) is fixedly installed on the described rotary fixing frame (30), and described second flourescent sheet (22) can be rotatably set on the described rotary fixing frame (30).
9. led light source module according to claim 3 is characterized in that, described relatively second flourescent sheet of described first flourescent sheet (21) (22) is near described LED luminescence chip.
10. led light source module according to claim 1 is characterized in that, described flourescent sheet (20) is the fluorescence lens.
11. led light source module according to claim 1 is characterized in that, described flourescent sheet (20) is the silica gel sheet.
12. a led light source module light-dimming method is characterized in that, realizes the adjusting that the led light source module is gone out light effect by relative angle between the adjusting flourescent sheet (20) and/or position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2013101606673A CN103227269A (en) | 2013-05-03 | 2013-05-03 | LED light source module and dimming method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2013101606673A CN103227269A (en) | 2013-05-03 | 2013-05-03 | LED light source module and dimming method thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105508999A (en) * | 2015-12-14 | 2016-04-20 | 江南大学 | LED lamp with adjustable color and temperature |
| CN106058017A (en) * | 2016-06-30 | 2016-10-26 | 宁波升谱光电股份有限公司 | LED assembly with continuous adjustable color temperature and preparation method thereof |
| CN106979468A (en) * | 2017-03-29 | 2017-07-25 | 广东工业大学 | A kind of LED/light source |
| CN107859888A (en) * | 2017-11-16 | 2018-03-30 | 广东晶科电子股份有限公司 | A kind of adjustable color temperature and the aobvious light source referred to |
| CN110671622A (en) * | 2019-09-29 | 2020-01-10 | 浙江工业大学 | Photocatalyst optical fiber lamp |
| CN113701127A (en) * | 2021-09-02 | 2021-11-26 | 深圳市同一方光电技术有限公司 | Double-color-temperature LED light source module capable of realizing dimming and color mixing |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006332384A (en) * | 2005-05-26 | 2006-12-07 | Citizen Electronics Co Ltd | Light source device and method of adjusting same |
| CN101344234A (en) * | 2008-08-22 | 2009-01-14 | 友达光电股份有限公司 | Display device and adjustable light-emitting module thereof |
| CN102444792A (en) * | 2010-10-06 | 2012-05-09 | 鸿富锦精密工业（深圳）有限公司 | LED lighting device |
-
2013
- 2013-05-03 CN CN2013101606673A patent/CN103227269A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006332384A (en) * | 2005-05-26 | 2006-12-07 | Citizen Electronics Co Ltd | Light source device and method of adjusting same |
| CN101344234A (en) * | 2008-08-22 | 2009-01-14 | 友达光电股份有限公司 | Display device and adjustable light-emitting module thereof |
| CN102444792A (en) * | 2010-10-06 | 2012-05-09 | 鸿富锦精密工业（深圳）有限公司 | LED lighting device |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105508999A (en) * | 2015-12-14 | 2016-04-20 | 江南大学 | LED lamp with adjustable color and temperature |
| CN106058017A (en) * | 2016-06-30 | 2016-10-26 | 宁波升谱光电股份有限公司 | LED assembly with continuous adjustable color temperature and preparation method thereof |
| CN106979468A (en) * | 2017-03-29 | 2017-07-25 | 广东工业大学 | A kind of LED/light source |
| CN107859888A (en) * | 2017-11-16 | 2018-03-30 | 广东晶科电子股份有限公司 | A kind of adjustable color temperature and the aobvious light source referred to |
| CN107859888B (en) * | 2017-11-16 | 2024-03-26 | 广东晶科电子股份有限公司 | Light source capable of adjusting color temperature and displaying finger |
| CN110671622A (en) * | 2019-09-29 | 2020-01-10 | 浙江工业大学 | Photocatalyst optical fiber lamp |
| CN113701127A (en) * | 2021-09-02 | 2021-11-26 | 深圳市同一方光电技术有限公司 | Double-color-temperature LED light source module capable of realizing dimming and color mixing |
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Application publication date: 20130731 |