CN109114439A - A kind of no blue light low color temperature two waveband LED light source - Google Patents

A kind of no blue light low color temperature two waveband LED light source Download PDF

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Publication number
CN109114439A
CN109114439A CN201810869092.5A CN201810869092A CN109114439A CN 109114439 A CN109114439 A CN 109114439A CN 201810869092 A CN201810869092 A CN 201810869092A CN 109114439 A CN109114439 A CN 109114439A
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CN
China
Prior art keywords
led
light source
waveband
color temperature
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.)
Withdrawn
Application number
CN201810869092.5A
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Chinese (zh)
Inventor
张建立
江风益
刘军林
朱昕
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nanchang Huanglyu Lighting Co ltd
Nanchang University
Original Assignee
Nanchang Huanglyu Lighting Co ltd
Nanchang University
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Application filed by Nanchang Huanglyu Lighting Co ltd, Nanchang University filed Critical Nanchang Huanglyu Lighting Co ltd
Priority to CN201810869092.5A priority Critical patent/CN109114439A/en
Publication of CN109114439A publication Critical patent/CN109114439A/en
Withdrawn legal-status Critical Current

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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
    • F21K9/20—Light sources comprising attachment means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V19/00—Fastening of light sources or lamp holders
    • F21V19/001—Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V9/00—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters
    • F21V9/08—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters for producing coloured light, e.g. monochromatic; for reducing intensity of light
    • 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
    • F21Y2113/10—Combination of light sources of different colours
    • F21Y2113/13—Combination of light sources of different colours comprising an assembly of point-like light sources
    • 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
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Led Device Packages (AREA)

Abstract

The present invention provides a kind of no blue light low color temperature two waveband LED light source, which includes one or more red spectral band LED and one or more yellowish green optical band LED；Reference color temperature is between 1500-2500K；The light source obtains a kind of high efficiency, high aobvious finger, low color temperature, the light source without blue light ingredient by the wavelength and the rate of attacking of matching AlGaInP red-light LED and AlGaInN green-yellow light LED, and can be used for the fields such as home lighting and street lamp.

Description

A kind of no blue light low color temperature two waveband LED light source
Technical field
The present invention relates to a kind of light source more particularly to a kind of two waveband LED light sources of no blue light low color temperature.
Background technique
LED light source has the advantages that energy-efficient, in the world, is widely used in illumination, backlight, shows, refers to Show equal fields, is made that tremendous contribution for energy-saving and emission-reduction.But current mainstream LED lighting technology is excited based on blue-ray LED Yellow fluorescent powder generates yellow light, then forms white light with blue light.Due to developing early stage, yellow light LED low efficiency, blue light in LED LED excitated fluorescent powder technology has very big odds for effectiveness, occupies dominant position.
But with the development of social progress and technology, influence of the light to biology is just increasingly being taken seriously, numerous studies table Bright, excessive blue light ingredient will lead to biological clock disorder in lighting source, inhibit the secretion of epiphysin, and it is strong to endanger human eye Health.Therefore, the light source made of blue-ray LED excitated fluorescent powder is queried, alerts or even is resisted by extensive recently.
Summary of the invention
To overcome technical problem mentioned above, the present invention provides a kind of no blue light low color temperature two waveband LED light source, should LED light source is a kind of high efficiency, high aobvious finger, low color temperature, the light source without blue light ingredient, which has wide practical use.
The present invention is achieved by the following technical solutions:
A kind of no blue light low color temperature two waveband LED light source, the two waveband LED light source include at least one red spectral band LED With at least one yellowish green optical band LED；The reference color temperature of the two waveband LED light source is 1500-2500K.
Wherein, above-mentioned red spectral band LED is AlGaInP red-light LED；Above-mentioned yellowish green optical band LED is AlGaInN green-yellow light LED。
Wherein, the peak wavelength range of above-mentioned red spectral band LED is 600~650nm, and half-peak breadth is 10~30nm, light function Rate accounts for the two waveband LED light source total optical power 20%~80%；The peak wavelength range of above-mentioned yellowish green optical band LED is 540 ~580nm, half-peak breadth are 30~120nm, and optical power accounts for the two waveband LED light source total optical power 20%~80%.
Preferably, the peak wavelength range of above-mentioned red spectral band LED is 620~630nm, and half-peak breadth is 10~20nm, light Power accounts for the two waveband LED light source total optical power 30%~70%；The peak wavelength range of above-mentioned yellowish green optical band LED is 540~580nm, half-peak breadth are 30~120nm, and optical power accounts for the two waveband LED light source total optical power 30%~70%.
Wherein, when the quantity of above-mentioned red spectral band LED is two or more, the wavelength of each red spectral band LED can be endless It is exactly the same；When the quantity of above-mentioned yellowish green optical band LED is two or more, the wavelength of each yellowish green optical band LED can be incomplete It is identical.
The beneficial effects of the present invention are:
1. two waveband LED light source of the invention, by the wavelength and function that match red spectral band LED and yellowish green optical band LED Rate obtains white light, and no blue light ingredient will not impact human eye health and human internal environment's stabilization, make for daily life With；
2. two waveband LED light source of the invention has the characteristics of high efficiency, high aobvious finger, low color temperature, energy conservation and environmental protection can be used for road The fields such as lamp or other illuminations.
Detailed description of the invention
Fig. 1 is that the chip on board of two waveband LED light source of the invention encapsulates (COB) schematic diagram；
Fig. 2 is luminescent spectrum figure of the two waveband LED light source of chip on board encapsulation at driving current 200mA；
Fig. 3 is the imitative lumen packages schematic diagram of two waveband LED light source of the invention；
Fig. 4 is luminescent spectrum figure of the two waveband LED light source of imitative lumen packages at driving current 200mA.
Specific embodiment
Invention is further explained with reference to the accompanying drawings and detailed description.
A kind of no blue light low color temperature two waveband LED light source proposed by the present invention, the light source is by yellowish green optical band LED and feux rouges Wave band LED matching composition, is entirely free of blue light ingredient, belongs to Healthy Lighting；The light source uses LED as luminescent device, efficiency It is even higher to can reach 100lm/W, meets energy-saving and environment-friendly demand；The light source passes through matching feux rouges and yellowish green optical power accounting, Make colour rendering index Ra up to 80 or more, meets general lighting demand；In addition, the light source luminescent spectrum is mainly organized as long-wave band Light, colour temperature can be approached down to 1500K with candle light colour temperature, and traditional incandescent lamp and fluorescent lamp is difficult to reach the reference color temperature, should Light source is the optimal selection of low color temperature illumination.
Embodiment 1:
Such as Fig. 1, two waveband LED light source includes aluminum substrate 10, and red LED chip 11 and green-yellow light are equipped on aluminum substrate 10 LED chip 12；
The size of red LED chip 11 be 45mil, totally 3, at driving current 200mA, peak wavelength be 620 ± 2nm, half-peak breadth are 15 ± 2nm, and wall plug efficiency is 50 ± 2%；The size of green-yellow light LED chip 12 be 45mil, totally 4, Under driving current 200mA, peak wavelength is 560 ± 2nm, and half-peak breadth is 40 ± 2nm, and wall plug efficiency is 20 ± 2%；
Red LED chip 11 and green-yellow light LED chip 12 are installed in series on aluminum substrate 10；
Red LED chip 11 and green-yellow light LED chip 12 are encapsulated on aluminum substrate 10 by silica gel 30.
As the peak wavelength of Fig. 2, the feux rouges peak 1 that wherein red LED chip 11 issues are located at 620 ± 2nm, green-yellow light LED The peak wavelength for the yellowish green photopeak 2 that chip 12 issues is located at 560 ± 2nm；Feux rouges peak 1 and the superposition of yellowish green photopeak 2 form this hair The synthetic spectrum 3 in Mingguang City source；The integrated intensity at feux rouges peak 1 accounts for the integrated intensity 62 ± 2% of synthetic spectrum 3, the product of yellowish green photopeak 2 Point intensity accounts for the integrated intensity 38 ± 2% of synthetic spectrum 3；The colour temperature of synthetic spectrum 3 be 1850 ± 50K, colour rendering index be 80 ± 2, efficiency is 132 ± 51m/W.
Embodiment 2:
Such as Fig. 3, two waveband LED two waveband light source includes aluminum substrate 20, and red-light LED is equipped on aluminum substrate 20 and imitates lumen lamp Pearl 21 and green-yellow light LED imitate lumen lamp bead 22；
The size that red-light LED imitates lumen lamp bead 21 is 45mil, totally 3, at driving current 200mA, and peak wavelength For 620 ± 2nm, half-peak breadth is 15 ± 2nm, and wall plug efficiency is 50 ± 2%；Green-yellow light LED imitate lumen lamp bead 22 size be 45mil, totally 3, at driving current 200mA, peak wavelength is 550 ± 2nm, and half-peak breadth is 35 ± 2nm, and wall plug efficiency is 27 ± 2%.
Red-light LED imitates lumen lamp bead 21 and green-yellow light LED imitates lumen lamp bead 22 and is installed in aluminum substrate in series On 20.
Such as Fig. 4, the peak wavelength that wherein red-light LED imitates the feux rouges peak 1 that lumen lamp bead 21 issues is located at 620 ± 2nm, yellowish green The peak wavelength that light LED imitates the yellowish green photopeak 2 that lumen lamp bead 22 issues is located at 560 ± 2nm；Feux rouges peak 1 and yellowish green photopeak 2 are superimposed Form the synthetic spectrum 3 of light source of the present invention；The integrated intensity at feux rouges peak 1 accounts for the integrated intensity 63 ± 2% of synthetic spectrum 3, yellow The integrated intensity of green light peak 2 accounts for the integrated intensity 37 ± 2% of synthetic spectrum 3.The colour temperature of synthetic spectrum 3 is 2150 ± 50K, colour developing Index is 73 ± 2, and efficiency is 150 ± 51m/W.
A kind of no blue light low color temperature two waveband LED light source proposed by the present invention, the light source is by yellowish green optical band LED and feux rouges Wave band LED matching composition, is entirely free of blue light ingredient, belongs to Healthy Lighting；The light source uses LED as luminescent device, efficiency It is even higher to can reach 100lm/W, meets energy-saving and environment-friendly demand；The light source passes through matching feux rouges and yellowish green optical power accounting, Make colour rendering index Ra up to 80 or more, meets general lighting demand；In addition, the light source luminescent spectrum is mainly organized as long-wave band Light, colour temperature can be approached down to 1500K with candle light colour temperature, and traditional incandescent lamp and fluorescent lamp is difficult to reach the reference color temperature, should Light source is the optimal selection of low color temperature illumination.
The above only expresses the preferred embodiment of the present invention, and the description thereof is more specific and detailed, but can not be because This and be interpreted as limitations on the scope of the patent of the present invention.It should be pointed out that for those of ordinary skill in the art, Under the premise of not departing from present inventive concept, several deformations can also be made, improves and substitutes, these belong to protection of the invention Range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.

Claims (5)

1. a kind of no blue light low color temperature two waveband LED light source, which is characterized in that the two waveband LED light source includes at least one Red spectral band LED and at least one yellowish green optical band LED；The reference color temperature of the two waveband LED light source is 1500-2500K.
2. no blue light low color temperature two waveband LED light source according to claim 1, which is characterized in that the red spectral band LED is AlGaInP red-light LED；The yellowish green optical band LED is AlGaInN green-yellow light LED.
3. no blue light low color temperature two waveband LED light source according to claim 1, which is characterized in that the red spectral band LED Peak wavelength range be 600~650nm, half-peak breadth is 10~30nm, and optical power accounts for the two waveband LED light source total optical power 20%~80%；The peak wavelength range of the yellowish green optical band LED is 540~580nm, and half-peak breadth is 30~120nm, light function Rate accounts for the two waveband LED light source total optical power 20%~80%.
4. no blue light low color temperature two waveband LED light source according to claim 3, which is characterized in that the red spectral band LED Peak wavelength range be 620~630nm, half-peak breadth is 10~20nm, and optical power accounts for the two waveband LED light source total optical power 30%~70%；The peak wavelength range of the yellowish green optical band LED is 540~580nm, and half-peak breadth is 30~120nm, light function Rate accounts for the two waveband LED light source total optical power 30%~70%.
5. no blue light low color temperature two waveband LED light source according to claim 1, which is characterized in that the red spectral band LED Quantity be two or more when, the wavelength of each red spectral band LED can be not exactly the same；The number of the yellowish green optical band LED When amount is two or more, the wavelength of each yellowish green optical band LED can be not exactly the same.
CN201810869092.5A 2018-08-01 2018-08-01 A kind of no blue light low color temperature two waveband LED light source Withdrawn CN109114439A (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102135240A (en) * 2010-01-26 2011-07-27 文国军 Warm light LED light source and implementation method thereof
CN103715342A (en) * 2013-12-30 2014-04-09 姜虹 Method for manufacturing LED light source and LED lamp containing light source
CN105782747A (en) * 2016-03-25 2016-07-20 方文卿 Method for protecting human reproduction and vision by improving semiconductor illuminating mode
US20170331007A1 (en) * 2014-12-16 2017-11-16 Epistar Corporation Light-emitting element
CN207097867U (en) * 2017-06-02 2018-03-13 南昌大学 A kind of yellowish-white light LED road lamp of unstressed configuration powder type

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102135240A (en) * 2010-01-26 2011-07-27 文国军 Warm light LED light source and implementation method thereof
CN103715342A (en) * 2013-12-30 2014-04-09 姜虹 Method for manufacturing LED light source and LED lamp containing light source
US20170331007A1 (en) * 2014-12-16 2017-11-16 Epistar Corporation Light-emitting element
CN105782747A (en) * 2016-03-25 2016-07-20 方文卿 Method for protecting human reproduction and vision by improving semiconductor illuminating mode
CN207097867U (en) * 2017-06-02 2018-03-13 南昌大学 A kind of yellowish-white light LED road lamp of unstressed configuration powder type

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
XIXIA TAO 等: "Performance enhancement of yellow InGaN-based multiple-quantum-well light-emitting diodes grown on Si substrates by optimizing the InGaN/GaN superlattice interlayer", 《OPTICAL MATERIALS EXPRESS》 *

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Address after: 330000 999, Xuefu Avenue, Nanchang, Jiangxi.

Applicant after: Nanchang University

Applicant after: Nanchang Silicon-based Semiconductor Technology Co., Ltd.

Address before: 330000 999, Xuefu Avenue, Nanchang, Jiangxi.

Applicant before: Nanchang University

Applicant before: Nanchang Huanglv Lighting Co., Ltd.

WW01 Invention patent application withdrawn after publication
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Application publication date: 20190101