CN101655218A - High-efficiency three-wavelength light source module - Google Patents
High-efficiency three-wavelength light source module Download PDFInfo
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- CN101655218A CN101655218A CN200810147165A CN200810147165A CN101655218A CN 101655218 A CN101655218 A CN 101655218A CN 200810147165 A CN200810147165 A CN 200810147165A CN 200810147165 A CN200810147165 A CN 200810147165A CN 101655218 A CN101655218 A CN 101655218A
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Abstract
The invention provides a high-efficiency three-wavelength light source module, which comprises a substrate, a bicolor light-emitting diode array, and a red fluorescent powder layer, wherein the bicolor light light-emitting diode array comprises a blue light-emitting diode and a green light-emitting diode which are fixedly combined to the substrate in a staggered way; light output directions of theblue light-emitting diode and the green light-emitting diode face the same light output path; and the red fluorescent powder layer is fixedly formed on the light output path. Because the blue light-emitting diode and the green light-emitting diode of which the service life is approximate are adopted as light sources, the output of each color light is still stable after the light source module isused for a long time.
Description
Technical field
The present invention relates to a kind of light source, relate in particular to a kind of high efficiency light source module that utilizes light emitting diode to produce the three primary colors wavelength light.
Background technology
Along with environmental protection consciousness is surging, alternative energy and relevant energy-conserving product are competitively developed in countries in the world.Among energy-conserving product, white light emitting diode has not had the main flow that becomes following electricity-saving lamp source differently.Generally speaking, the luminous mechanism that can produce the light emitting diode of white light comprises mainly that monochromatic light excites and three coloured light excite two big classes.Wherein, the principle of luminosity of monochromatic light activated white light emitting diode is to drive sodium yellow fluorescent material with a blue-ray LED, and form white light output with the gold-tinted of blue light sodium yellow fluorescent material generation, yet, quite faint with the white light that the blue light gold-tinted produces because of the luminous intensity of green glow, ruddiness, cause its white-light spectrum blue light ingredient bigger, the white light that is produced allows the people produce sombre impression easily.In addition, the light emitting diode that this three coloured light excites comprises three kinds of light emitting diodes that can produce different color light output, the light output that every kind of light emitting diode produces different wave length respectively (for example, blue, green, red) and mix the formation white light, because the emission wavelength of three coloured light light emitting diodes can select different diodes to finely tune, therefore, has perfect colour gamut performance with three coloured light light emitting diodes.
Yet three coloured light light emitting diodes produce the problem of variable color probably after permanent the use.Its reason is, three coloured light light emitting diodes are formed with the light emitting diode of red, blue, the green three kinds outputs of not sharing the same light, wherein, blueness and green LED are mainly formed with the compound semiconductor of binary, ternary or the quaternary of gallium nitride GaN system, therefore its service life and light output performance can be mated haply, but red light-emitting diode but needs just can export ruddiness with the compound semiconductor of GaAs GaAs system.Because the relation of material behavior, quite big difference is arranged the overall service life of present ruddiness and blue-green light LED, therefore, when the three coloured light light emitting diodes that adopt three kinds of ruddiness, green glow and blue light-emitting diode combination after long-term the use, red light-emitting diode is often very fast because of the rate of decay, causes exporting color and modifies tone.
Summary of the invention
Excite photochromic Wen Bujia of output and the three coloured light light emitting diodes problem that the output color modifies tone after long-term the use in order to solve aforementioned monochromatic light, the invention provides a kind of light source module of high-efficiency three-wavelength, reach the advantage of the light source module of possessing present three coloured light light emitting diodes and the purpose that solves its shortcoming.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of light source module of high-efficiency three-wavelength is characterized in that it comprises: a substrate; One bi-coloured light light emitting diode matrix, it comprises staggered secure bond in a blue LED and a green LED of this base material, and the light output direction of this blue LED and green LED is towards same smooth outgoing route; One red light fluorescent powder layer, it fixedly is formed on the light output path.
The light source module of aforesaid high-efficiency three-wavelength wherein comprises a transmitting substrate, and this transmitting substrate is fixed on the light output path, coated this transmitting substrate surface that is formed at of this red light fluorescent powder layer.
The light source module of aforesaid high-efficiency three-wavelength, wherein substrate is a pcb board body, this bi-coloured light light emitting diode matrix is the surface that is fixed at this base material, and its light outgoing route is towards the opposite direction of this substrate.
The light source module of aforesaid high-efficiency three-wavelength, wherein substrate is a leaded light plate body, this bi-coloured light light emitting diode matrix secure bond is in surface or all side surfaces of this substrate, passes this substrate after making the light outgoing route of this bi-coloured light light emitting diode matrix enter this substrate.
The light source module of aforesaid high-efficiency three-wavelength, wherein transmitting substrate is a Fresnel Lens structure diaphragm, a dull and stereotyped translucent sheet, an optical filter, a polarizer or a focusing sheet.
The light source module of aforesaid high-efficiency three-wavelength, wherein comprising a speculum is to be fixed on the light output path, coated this mirror surface that is formed at of this red light fluorescent powder layer.
The light source module of aforesaid high-efficiency three-wavelength, wherein coated this blue LED and this green LED surface of being formed at of red light fluorescent powder layer.
The light source module of aforesaid high-efficiency three-wavelength, wherein transmitting substrate is a Fresnel Lens structure diaphragm, a dull and stereotyped translucent sheet, an optical filter, a polarizer or a focusing sheet.
Whereby, the present invention has following advantage:
1. adopt approaching indigo plant in service life, green light LED as light source, even after making the permanent use of light source module, the output quite stable of each coloured light and service life mate permanent.
2. part output CD-ROM drive blue, green light LED makes red fluorescence powder produce ruddiness output, and can form the area source output of three-wavelength, so use light fixture of the present invention can have best white light output effect.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is the schematic perspective view of preferred embodiment of the present invention.
Fig. 2 is the side view of preferred embodiment of the present invention.
Fig. 3 is the vertical view of preferred embodiment of the present invention.
Fig. 4 is the use schematic diagram of preferred embodiment of the present invention.
Fig. 5 is another use schematic diagram of preferred embodiment of the present invention.
The number in the figure explanation:
10 bi-coloured light light emitting diode matrixs
14 blue light-emitting diodes
16 green light LEDs
18 substrates
30 red light fluorescent powder layers
50 transmitting substrates
The specific embodiment
See also Fig. 1 to Fig. 3, it is the preferred embodiment of the light source module of high-efficiency three-wavelength of the present invention, and it comprises a bi-coloured light light emitting diode matrix 10 and a red light fluorescent powder layer 30.
This bi-coloured light light emitting diode matrix 10 comprises several blue light-emitting diodes 14 and several green light LEDs 16 that is staggeredly placed, and it can be fixedly set in a substrate 18 surfaces, and this substrate 18 can be pcb board or is a leaded light module plate body; When this substrate 18 is a pcb board, each blue light-emitting diode 14 and each green light LED 16 are to be fixed at this substrate 18, make each blue light-emitting diode 14 and each green light LED 16 outwards send indigo plant, green glow; When this substrate 18 is the leaded light module, each blue light-emitting diode 14 and each green light LED 16 can place the bottom or the ring-side wall of this substrate 18, its light emission direction is exported by this substrate 18 by this substrate 18 towards this substrate 18 again, at last by 18 outputs of this substrate, form area source with each blue light-emitting diode 14 of homogenising and output light that each green light LED 16 was produced.
This red light fluorescent powder layer 30 is to accept the short wavelength (for example: purple, blue, green after) the light irradiation, can excite and produce red light output, the path of the output light of its formation or coated each blue light-emitting diode 14 and each green light LED 16 for example directly is coated with the encapsulating material inner surface or the outer surface that invest each blue light-emitting diode 14 and each green light LED 16; Perhaps also can be coated with on the light outgoing route that invests this substrate 18 with light guide effect; Perhaps, also can be coated with on the transmitting substrate 50 in path of the output light that invests each blue light-emitting diode 14 and each green light LED 16, this transmitting substrate 50 can be a Fresnel Lens structure diaphragm or a dull and stereotyped translucent sheet (material can be PET, PMMA, mCoC etc.) or for having the lamellar body (for example optical filter, polarizer, focusing sheet etc.) of optical function.
So, each blue light-emitting diode 14 and each green light LED 16 are through after this red light fluorescent powder layer 30 of process on the light outgoing route, the local energy excitated red fluorescent powder layer 30 of blue-green area source and make red fluorescence bisque 30 produce red light output, and can on the light outgoing route after this red fluorescence bisque 30, colour mixture produce white light output light, because the light energy of this white light output light is mainly combined by the coloured light of three different wave lengths, so not only have the good advantage of colour temperature effect, also comparatively approaching because of the service life of each blue light-emitting diode 14 and each green light LED 16, make this preferred embodiment be difficult for after long-time the use, producing the problem of variable color because the light emitting diode of a certain particular color damages.
See also Fig. 4 and Fig. 5, during use, the light source module of the high-efficiency three-wavelength of this preferred embodiment can be combined in inside such as a desk lamp support body 60 or a flashlight housing 70 according to user demand, and forms the light fixture of different functions of use.
As shown in Figure 4, this bi-coloured light light emitting diode matrix 10 of this preferred embodiment is to be fixed in the light source pedestal 62 of this desk lamp support body 60, the light output direction that makes this bi-coloured light light emitting diode matrix 10 outwardly, after this red light fluorescent powder layer 30 then is coated with and invests this transmitting substrate 50, this transmitting substrate 50 is fixed at an openend of this light source pedestal 62, the output light that this bi-coloured light light emitting diode matrix 10 is produced can be via behind this red light fluorescent powder layer 30, and colour mixture produces white light output.
In like manner; as shown in Figure 5; when this preferred embodiment during as the light source module of a flashlight; the blueness of employed this bi-coloured light light emitting diode matrix 10 and green LED number can be reduced to each one; and its light output direction can be towards a speculum 72 of this flashlight housing 70; this red light fluorescent powder layer 30 then can be coated with and invest on this speculum 72; perhaps can be coated with on the protection euphotic cover 73 or a focus lamp group 74 that invests a smooth outlet opening that is installed in this flashlight housing 70, can reach the effect that aforementioned colour mixture produces white light output.
Claims (8)
1. the light source module of a high-efficiency three-wavelength is characterized in that it comprises:
One substrate;
One bi-coloured light light emitting diode matrix, it comprises staggered secure bond in a blue LED and a green LED of this base material, and the light output direction of this blue LED and green LED is towards same smooth outgoing route;
One red light fluorescent powder layer, it fixedly is formed on the light output path.
2. the light source module of high-efficiency three-wavelength according to claim 1, it is characterized in that: comprise a transmitting substrate, this transmitting substrate is fixed on the light output path, coated this transmitting substrate surface that is formed at of this red light fluorescent powder layer.
3. the light source module of high-efficiency three-wavelength according to claim 2, it is characterized in that: described substrate is a pcb board body, and this bi-coloured light light emitting diode matrix is the surface that is fixed at this base material, and its light outgoing route is towards the opposite direction of this substrate.
4. the light source module of high-efficiency three-wavelength according to claim 2, it is characterized in that: described substrate is a leaded light plate body, this bi-coloured light light emitting diode matrix secure bond is in surface or all side surfaces of this substrate, passes this substrate after making the light outgoing route of this bi-coloured light light emitting diode matrix enter this substrate.
5. according to the light source module of claim 2,3 or 4 described high-efficiency three-wavelengths, it is characterized in that: described transmitting substrate is a Fresnel Lens structure diaphragm, a dull and stereotyped translucent sheet, an optical filter, a polarizer or a focusing sheet.
6. the light source module of high-efficiency three-wavelength according to claim 1, it is characterized in that: comprising a speculum is to be fixed on the light output path, coated this mirror surface that is formed at of this red light fluorescent powder layer.
7. the light source module of high-efficiency three-wavelength according to claim 1 is characterized in that: coated this blue LED and this green LED surface of being formed at of described red light fluorescent powder layer.
8. the light source module of high-efficiency three-wavelength according to claim 7 is characterized in that: described transmitting substrate is that a Fresnel Lens structure diaphragm, a dull and stereotyped translucent sheet, an optical filter, a polarizer or focus on sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810147165A CN101655218A (en) | 2008-08-22 | 2008-08-22 | High-efficiency three-wavelength light source module |
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| Application Number | Priority Date | Filing Date | Title |
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| CN200810147165A CN101655218A (en) | 2008-08-22 | 2008-08-22 | High-efficiency three-wavelength light source module |
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| CN101655218A true CN101655218A (en) | 2010-02-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200810147165A Pending CN101655218A (en) | 2008-08-22 | 2008-08-22 | High-efficiency three-wavelength light source module |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102478752A (en) * | 2010-11-23 | 2012-05-30 | 亚洲光学股份有限公司 | Light source module of projector |
| CN103133920A (en) * | 2011-11-30 | 2013-06-05 | 台积固态照明股份有限公司 | Cost-effective LED lighting instrument with good light output uniformity |
| CN103672450A (en) * | 2012-08-31 | 2014-03-26 | 晶元光电股份有限公司 | Light emitting device |
| CN105782804A (en) * | 2014-12-26 | 2016-07-20 | 中强光电股份有限公司 | Light source module and direct type light source module |
-
2008
- 2008-08-22 CN CN200810147165A patent/CN101655218A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102478752A (en) * | 2010-11-23 | 2012-05-30 | 亚洲光学股份有限公司 | Light source module of projector |
| CN102478752B (en) * | 2010-11-23 | 2014-02-19 | 亚洲光学股份有限公司 | Light source module of projector |
| CN103133920A (en) * | 2011-11-30 | 2013-06-05 | 台积固态照明股份有限公司 | Cost-effective LED lighting instrument with good light output uniformity |
| CN103672450A (en) * | 2012-08-31 | 2014-03-26 | 晶元光电股份有限公司 | Light emitting device |
| CN103672450B (en) * | 2012-08-31 | 2017-07-04 | 晶元光电股份有限公司 | Light-emitting device |
| CN105782804A (en) * | 2014-12-26 | 2016-07-20 | 中强光电股份有限公司 | Light source module and direct type light source module |
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Application publication date: 20100224 |