CN108468955A - A kind of lighting unit using mixing light source - Google Patents
A kind of lighting unit using mixing light source Download PDFInfo
- Publication number
- CN108468955A CN108468955A CN201810296540.7A CN201810296540A CN108468955A CN 108468955 A CN108468955 A CN 108468955A CN 201810296540 A CN201810296540 A CN 201810296540A CN 108468955 A CN108468955 A CN 108468955A
- Authority
- CN
- China
- Prior art keywords
- fluorescent powder
- powder piece
- ceramic fluorescent
- laser
- light
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000919 ceramic Substances 0.000 claims abstract description 41
- 239000000843 powder Substances 0.000 claims abstract description 40
- 239000000758 substrate Substances 0.000 claims abstract description 15
- 230000004907 flux Effects 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- 238000002310 reflectometry Methods 0.000 claims description 3
- 241001025261 Neoraja caerulea Species 0.000 claims description 2
- 238000001354 calcination Methods 0.000 claims description 2
- 238000006243 chemical reaction Methods 0.000 claims description 2
- 238000005286 illumination Methods 0.000 abstract description 3
- 239000013589 supplement Substances 0.000 abstract 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 241001062009 Indigofera Species 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
- F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
- F21K9/60—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction
- F21K9/64—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction using wavelength conversion means distinct or spaced from the light-generating element, e.g. a remote phosphor layer
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
- F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
- F21K9/60—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction
- F21K9/68—Details of reflectors forming part of the light source
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2113/00—Combination of light sources
- F21Y2113/20—Combination of light sources of different form
Abstract
The invention discloses a kind of lighting units using mixing light source, mainly solve existing LED illumination unit light-emitting area and are unfavorable for lighting apparatus miniaturization, the problem that laser lighting unit brightness is low, of high cost greatly.It includes laser 1, ceramic fluorescent powder piece 2, LED chip group 3, high-temperature resistant heat conduction reflective layer 4 and substrate 5；On the laser light irradiation that laser 1 is sent out to ceramic fluorescent powder piece 2, ceramic fluorescent powder piece 2 is set in LED chip group 3, high-temperature resistant heat conduction reflective layer 4 is equipped among LED chip group 3, high-temperature resistant heat conduction reflective layer 4 is fixed on LED chip group 3 on substrate 5, the another side of high-temperature resistant heat conduction reflective layer 4 is fitted closely with ceramic fluorescent powder piece 2, the heat of itself can be not only transmitted on substrate 5 by it, moreover it is possible to be radiated for ceramic fluorescent powder piece 2.The present invention realizes the mutual supplement with each other's advantages of two kinds of light sources and reduces the cost of lighting unit to the maximum extent in such a way that two kinds of light sources of LED and laser are integrated into the same lighting unit.
Description
Technical field
The present invention relates to lighting technical field, especially a kind of lighting units using mixing light source.
Background technology
The advantages that light emitting diode abbreviation LED, long lifespan small with its, is pursued by current illumination market, although LED
The brightness of single chip is not high, and energy density is relatively low, but since it has smaller volume, can be cascade by multiple chips
Mode meets different brightness requirements, but disadvantage is exactly to do so the covert light-emitting area for resulting in LED light source to become larger, in special type
Lighting area need to be equipped with larger optical structure element to meet the light distribution requirements of special lighting when applying.
During the light distribution of special lighting, number used by usually seeing light source as point light source to simplify theoretical calculation
Model is learned, the volume to reduce special lighting equipment is then needed to meet the needs of high integration using relative to its shape
Much smaller light source for size, under these conditions, LED be difficult meet design requirement, corresponding, laser light
Source can then accomplish smaller light-emitting area and higher energy density, but since the technology of existing laser lighting is limited, and swash
The power of radiant is not high, and price is also more expensive.
In existing laser lighting application, in order to improve the brightness of laser lighting, the generally use side similar with LED
The light that multiple laser light sources are sent out the characteristics of more concentration using laser beam, is converged to the same point, to reach by formula
The requirement of smaller light-emitting area and higher brightness, but be to use LED conducts since it uses multiple laser light sources, cost
Hundreds times of light source.
Invention content
It is an object of the invention to the deficiencies for the above-mentioned existing lighting unit using LED or laser as light source, carry
A kind of lighting unit using mixing light source is gone out, to reduce the cost of lighting unit, has enhanced the brightness of lighting unit, reduce and shine
The volume of bright equipment meets the requirement of high integration.
To achieve the above object, the present invention includes laser 1, ceramic fluorescent powder piece 2, LED chip group 3, high-temperature resistant heat conduction
Reflective layer 4 and substrate 5；It is characterized in that：On the laser light irradiation that laser 1 is sent out to ceramic fluorescent powder piece 2, ceramic fluorescent
Powder piece 2 is set in LED chip group 3, and high-temperature resistant heat conduction reflective layer 4, high-temperature resistant heat conduction reflective layer 4 are equipped among LED chip group 3
It is fixed on substrate 5 with LED chip group 3.
The blue laser light that the laser 1 is sent out is irradiated on the ceramic fluorescent powder piece 2 of yellow, the ceramics of yellow
Phosphor sheet 2 is excited and sends out the light of white, the blue laser of white light and the ceramic fluorescent powder piece 2 across yellow
Light is irradiated to by the reflection of high-temperature resistant heat conduction reflective layer 4 on the ceramic fluorescent powder piece 2 of yellow again, the ceramic fluorescent of yellow
Powder piece 2 be excited again and send out white light, improve blue light to white light conversion ratio.
The LED chip group 3 includes one or plurality of LEDs chip, and the blue ray sent out is irradiated to the pottery of yellow
On porcelain phosphor sheet 2, the ceramic fluorescent powder piece 2 of yellow is excited and sends out the light of white, for improving the lighting unit
Whole luminous flux.
The high-temperature resistant heat conduction reflective layer 4 uses high temperature resistant and Heat Conduction Material with high reflectivity, to avoid being converged
Gather be approximately a point the calcination of laser beam institute, be fixed on one side on substrate 5, another side and ceramic fluorescent powder piece 2 are tight
Heat caused by the irradiation of laser 1 can be not only transmitted on substrate 5 by closely connected conjunction, but also can also be ceramic fluorescent powder
Piece 2 radiates.
Compared with the prior art, the present invention has the following advantages：
(1) present invention is due to the LED chip group using plurality of LEDs chip composition so that lighting unit of the invention is whole
Luminous flux is higher, disclosure satisfy that greater area of lighting demand；
(2) present invention is due to one of the light source of lighting unit using laser as the present invention, and laser has direction
Property strong, the features such as energy density is high so that lighting unit single-point brightness of the invention is improved, to meet the photograph of more optically focused
Bright requirement；
(3) LED light source and laser light source are integrated into the same lighting unit by the present invention so that illumination list of the invention
Member not only has the advantages of LED light source, but also the advantages of be provided simultaneously with laser light source, is also reduced while respectively taking the chief entire
The cost of lighting unit.
Description of the drawings
Fig. 1 is a kind of explosion sketch of lighting unit using mixing light source of the present invention；
Fig. 2 is a kind of diagrammatic cross-section of lighting unit using mixing light source of the present invention.
Specific implementation mode
Below in conjunction with attached drawing and embodiment, the invention will be further described.
Referring to Fig.1, lighting unit of the invention includes that laser 1, ceramic fluorescent powder piece 2, LED chip group 3, high-temperature resistant are led
Hot reflective layer 4 and substrate 5；Wherein：On the laser light irradiation that laser 1 is sent out to ceramic fluorescent powder piece 2, ceramic fluorescent powder piece
2 are set in LED chip group 3, are equipped with high-temperature resistant heat conduction reflective layer 4 among LED chip group 3, high-temperature resistant heat conduction reflective layer 4 with
LED chip group 3 is fixed on substrate 5.
Fig. 2 gives a kind of diagrammatic cross-section of lighting unit using mixing light source of the present invention, what laser 1 was sent out
Blue laser light is irradiated on the ceramic fluorescent powder piece 2 of yellow, and the ceramic fluorescent powder piece 2 of yellow is excited and sends out white
The blue laser light of light, white light and the ceramic fluorescent powder piece 2 across yellow passes through high-temperature resistant heat conduction reflective layer 4
Reflection is irradiated to again on the ceramic fluorescent powder piece 2 of yellow, and the ceramic fluorescent powder piece 2 of yellow is excited and sends out white again
Light, in the process, laser beam pass twice through ceramic fluorescent powder piece 2, are to the maximum extent converted to blue laser light
White light, transfer efficiency are improved；High-temperature resistant heat conduction reflective layer 4 uses high temperature resistant and Heat Conduction Material with high reflectivity,
It fixes on the substrate 5 on one side, another side is fitted closely with ceramic fluorescent powder piece 2, can not only be brought the irradiation of laser 1
Heat be transmitted on substrate 5, and can also be ceramic fluorescent powder piece 2 radiate；At the same time, the indigo plant that LED chip group 3 is sent out
Coloured light line is irradiated on the ceramic fluorescent powder piece 2 of yellow, and the ceramic fluorescent powder piece 2 of yellow is excited and sends out the light of white；
Since the cost of LED chip is well below the cost of laser, 3 energy of LED chip group that the present invention is constituted using plurality of LEDs chip
It is enough with lower cost recovery merely using laser as light source when luminous flux deficiency；But due to the light-emitting surface of LED chip group 3
Product is larger, and the light sent out also more disperses, and is unfavorable for the miniaturization of special lighting equipment, corresponding, laser has
Stronger directive property, light are more concentrated, and can be approximately point light source, and both LED chip and laser have complementary advantages, can be directed to
Solves the problems, such as special lighting device miniaturization and reduce cost to the maximum extent to property.
The preferred example that the above is only the present invention, does not constitute any limitation of the invention, it is clear that the present invention's
Under design, different change and improvement can be carried out to its structure, but these are in the row of the protection of the present invention.
Claims (4)
1. it is a kind of using mixing light source lighting unit, including laser (1), ceramic fluorescent powder piece (2), LED chip group (3),
High-temperature resistant heat conduction reflective layer (4) and substrate (5)；It is characterized in that：The laser light irradiation that laser (1) is sent out is to ceramic fluorescent
On powder piece (2), ceramic fluorescent powder piece (2) is set in LED chip group (3), and high-temperature resistant heat conduction is equipped among LED chip group (3)
Reflective layer (4), high-temperature resistant heat conduction reflective layer (4) are fixed on LED chip group (3) on substrate (5).
2. lighting unit according to claim 1, it is characterised in that the blue laser light that the laser (1) is sent out
It is irradiated on the ceramic fluorescent powder piece (2) of yellow, the ceramic fluorescent powder piece (2) of yellow is excited and sends out the light of white, in vain
The light of color and the blue laser light of the ceramic fluorescent powder piece (2) across yellow pass through the anti-of high-temperature resistant heat conduction reflective layer (4)
It penetrates and is irradiated to again on the ceramic fluorescent powder piece (2) of yellow, the ceramic fluorescent powder piece (2) of yellow is excited and sends out white again
Light, improve blue light to white light conversion ratio.
3. lighting unit according to claim 1, it is characterised in that the LED chip group (3) includes one or more
LED chip, the blue ray sent out are irradiated on the ceramic fluorescent powder piece (2) of yellow, ceramic fluorescent powder piece (2) quilt of yellow
Excite and send out the light of white, the whole luminous flux for improving the lighting unit.
4. lighting unit according to claim 1, it is characterised in that the high-temperature resistant heat conduction reflective layer (4) uses resistance to height
Heat Conduction Material warm and with high reflectivity, to avoid the laser beam institute calcination for being approximately a point, one side is accumulated
It is fixed on substrate (5), another side is fitted closely with ceramic fluorescent powder piece (2), can not only be brought the irradiation of laser 1
Heat be transmitted on substrate (5), and can also be ceramic fluorescent powder piece (2) radiate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810296540.7A CN108468955A (en) | 2018-03-30 | 2018-03-30 | A kind of lighting unit using mixing light source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810296540.7A CN108468955A (en) | 2018-03-30 | 2018-03-30 | A kind of lighting unit using mixing light source |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108468955A true CN108468955A (en) | 2018-08-31 |
Family
ID=63262822
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810296540.7A Pending CN108468955A (en) | 2018-03-30 | 2018-03-30 | A kind of lighting unit using mixing light source |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108468955A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110454693A (en) * | 2019-08-14 | 2019-11-15 | 浙江比肯科技有限公司 | A kind of LED luminescence unit using laser enhancing |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004044481A1 (en) * | 2002-11-14 | 2004-05-27 | Fluorosolar Systems Limited | A hybrid lighting system |
| US20120230007A1 (en) * | 2011-03-10 | 2012-09-13 | Yasuyuki Kawakami | Semiconductor light source apparatus and lighting unit |
| US20120320583A1 (en) * | 2010-03-01 | 2012-12-20 | Koninklijke Philips Electronics, N.V. | Lighting apparatus |
| EP3168527A1 (en) * | 2015-11-11 | 2017-05-17 | Automotive Lighting Reutlingen GmbH | Light module for a vehicle headlamp and motor vehicle headlamp with such a light module |
| CN107314324A (en) * | 2017-08-10 | 2017-11-03 | 广州哥伦布光学科技有限公司 | A kind of double light source distance light car lights of laser LED |
| WO2018038900A1 (en) * | 2016-08-22 | 2018-03-01 | Ostrow Michael | Laser led hybrid light source for projection display |
| CN207935797U (en) * | 2018-03-30 | 2018-10-02 | 嘉兴米石科技有限公司 | A kind of lighting unit using mixing light source |
-
2018
- 2018-03-30 CN CN201810296540.7A patent/CN108468955A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004044481A1 (en) * | 2002-11-14 | 2004-05-27 | Fluorosolar Systems Limited | A hybrid lighting system |
| US20120320583A1 (en) * | 2010-03-01 | 2012-12-20 | Koninklijke Philips Electronics, N.V. | Lighting apparatus |
| US20120230007A1 (en) * | 2011-03-10 | 2012-09-13 | Yasuyuki Kawakami | Semiconductor light source apparatus and lighting unit |
| EP3168527A1 (en) * | 2015-11-11 | 2017-05-17 | Automotive Lighting Reutlingen GmbH | Light module for a vehicle headlamp and motor vehicle headlamp with such a light module |
| WO2018038900A1 (en) * | 2016-08-22 | 2018-03-01 | Ostrow Michael | Laser led hybrid light source for projection display |
| CN107314324A (en) * | 2017-08-10 | 2017-11-03 | 广州哥伦布光学科技有限公司 | A kind of double light source distance light car lights of laser LED |
| CN207935797U (en) * | 2018-03-30 | 2018-10-02 | 嘉兴米石科技有限公司 | A kind of lighting unit using mixing light source |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110454693A (en) * | 2019-08-14 | 2019-11-15 | 浙江比肯科技有限公司 | A kind of LED luminescence unit using laser enhancing |
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