CN102392978A - Organic-material filter for improving color-rendering property of LED (Light-Emitting Diode) - Google Patents
Organic-material filter for improving color-rendering property of LED (Light-Emitting Diode) Download PDFInfo
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- CN102392978A CN102392978A CN2011101932635A CN201110193263A CN102392978A CN 102392978 A CN102392978 A CN 102392978A CN 2011101932635 A CN2011101932635 A CN 2011101932635A CN 201110193263 A CN201110193263 A CN 201110193263A CN 102392978 A CN102392978 A CN 102392978A
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Abstract
The invention discloses an organic-material filter for improving the color-rendering property of an LED (Light-Emitting Diode), which comprises a basal body and a light-absorbing material, wherein the light-absorbing material is clamped in an organic light-absorbing material layer in the basal body, and the absorption wavelength of the light-absorbing material includes 570-600nm. Through the mode, the wavelength spectral segment of multicolor light in an LED light-emitting unit can be changed by the organic-material filter for improving the color-rendering property of the LED disclosed by the invention, and the color-rendering property of the LED is improved.
Description
Technical field
The present invention relates to the illumination optical technical field, particularly relate to the organic material optical filter that a kind of LED of being used for (light emitting diode) improves colour rendering.
Background technology
At present, the method that LED improves colour rendering has three major types: the one, and blue-ray LED excites the white light that produces behind the yellow fluorescent powder and the ruddiness of small-power red-light LED to mix the raising colour rendering.Concrete grammar be blue-ray LED excite yellow fluorescent powder to generate white-light spectrum in the red-light spectrum section that lacked through compensating with the red-light spectrum section that red-light LED produced, make spectrum segment complete relatively and colour rendering is improved.Its characteristics: drive circuit is complicated, cost is lower, and shortcoming has: what blue-ray LED, fluorescent material and red-light LED constituted is relatively independent illuminator, possibly exist spatial color inhomogeneous with regard to individual devices.
The 2nd, control through the composition that changes fluorescent material.Concrete grammar is to adopt blue-ray LED to excite yellow and red fluorescence powder simultaneously, even excites multiple fluorescent material also can obtain the white light LEDs of function admirable simultaneously.Blue-ray LED adds yellow fluorescent powder or ultraviolet LED adds three primary colors fluorescent powder, and its characteristics: drive circuit is fairly simple, and shortcoming has: present luminous efficiency is still not high or do not reach the popularization stage in enormous quantities.
The 3rd, RGB three primary colours chip hybrid becomes white light, is the integrated white light LEDs that can obtain low colour temperature, high-color rendering of multicore sheet.The shortcoming of this method is the encapsulating structure more complicated, and circuit is realized difficulty, the white light less stable, and cost is than higher.Because the quantum efficiency of three kinds of color led chips of red, green, blue is different, and is different with the variation of temperature and drive current separately, and decay in time is also different, so the colourity of output white light is unstable.In order to make it stable, need add feedback circuit respectively to three kinds of colors and compensate, so encapsulating structure and circuit more complicated.Its advantage is that efficient is high, use is flexible, since luminous all from three kinds of LED of red, green, blue, need not carry out the spectrum conversion, so its energy loss is minimum, most effective.Simultaneously because the RGB three-color LED can be luminous separately, and its luminous intensity can regulate separately, so have higher flexibility.
Above three major types is all relatively complicated; Common ground all is to improve the LED colour rendering through light source itself or mixed light; Because the main cause that the LED colour rendering is not high is to lack the red light spectral coverage in the LED spectrum relatively, red light spectrum is realized in the needs increase spectrum segment.
Summary of the invention
The technical problem that the present invention mainly solves provides a kind of LED and improves colour rendering organic material optical filter, can increase through red light spectrum segment in the simple mode LED luminescence unit, improves the colour rendering of LED.
For solving the problems of the technologies described above; The technical scheme that the present invention adopts is: a kind of LED improves colour rendering organic material optical filter; Said LED improves colour rendering organic material optical filter and comprises matrix and light absorbent; Said light absorbent is the organic light absorbent layer that is located in the said matrix, and the absorbing wavelength of said light absorbent comprises 570 nanometers ~ 600 nanometers.
In preferred embodiment of the present invention, said matrix comprises formation one enclosure space, and said light absorbent is positioned at said enclosure space.
In preferred embodiment of the present invention, said matrix comprises two protective layers and two adhesive layers, and said protective layer lays respectively at the relative both sides of said organic light absorbent layer, and said two adhesive layers are bonding with two protective layers and said organic light absorbent layer respectively.
In preferred embodiment of the present invention, said adhesive layer is a glue.
In preferred embodiment of the present invention, said organic light absorbent layer is a dyestuff.
In preferred embodiment of the present invention, said dyestuff comprises one or more in Hua Jing, azo, oxaza and the anthraquinone.
In preferred embodiment of the present invention, said matrix is a transparent resin.
The present invention also provides a kind of led light source, and said led light source comprises that LED luminescence unit and LED improve colour rendering organic material optical filter, and said LED improves light emission direction the place ahead that colour rendering organic material optical filter is arranged on said LED luminescence unit.Said LED improves colour rendering organic material optical filter and comprises matrix and light absorbent, and said light absorbent is the organic light absorbent layer that is located in the said matrix, and the absorbing wavelength of said light absorbent comprises 570 nanometers ~ 600 nanometers.
The invention has the beneficial effects as follows: LED of the present invention improves organic light absorbent layer that folder is established in the colour rendering organic material optical filter matrix and passes through to absorb the quantitative wavelength in the LED luminescence unit spectrum; Readjust various coloured light spectrum content in the LED luminescence unit; Increase red light spectrum in the spectrum; Improve the colour rendering of LED luminescence unit, so in various places in order to improve the various visual effect of multiple object color.
Description of drawings
Fig. 1 is the institutional framework sketch map that LED of the present invention improves colour rendering organic material optical filter;
Fig. 2 is the LED luminescence unit position view that LED of the present invention improves colour rendering organic material optical filter;
Fig. 3 is the spectral intensity correlation curve of led light source of the present invention and original visible light.
The mark of each parts is following in the accompanying drawing: 1, matrix; 2, absorbing material; 3, organic light absorbent layer; 4, protective layer; 5, adhesive layer; 6, optical filter; 7, LED luminescence unit.
The specific embodiment
Below in conjunction with accompanying drawing preferred embodiment of the present invention is set forth in detail, thereby protection scope of the present invention is made more explicit defining so that advantage of the present invention and characteristic can be easier to it will be appreciated by those skilled in the art that.
See also Fig. 1; The embodiment of the invention comprises: a kind of LED improves colour rendering organic material optical filter; Comprise matrix 1 and light absorbent 2, light absorbent 2 is for to be located in the organic light absorbent layer 3 in the said matrix 1, and the absorbing wavelength of said light absorbent 2 comprises 570 nanometers ~ 600 nanometers.Said light absorbent 2 can evenly be located in the matrix 1, also can said light absorbent 2 can be located in the matrix 1 at random according to product demand.
Improve in the colour rendering organic material optical filter at LED of the present invention, matrix 1 comprises formation one enclosure space, and said light absorbent 2 is positioned at said enclosure space.Matrix 1 comprises two protective layers 4 and two adhesive layers 5, and protective layer 4 lays respectively at the relative both sides of organic light absorbent layer, and two adhesive layers 5 are bonding with two protective layers 4 and said organic light absorbent layer 3 respectively.
Further, said adhesive layer 5 is a glue, and organic light absorbent layer 3 is a dyestuff, and dyestuff comprises one or more in Hua Jing, azo, oxaza and the anthraquinone, and matrix 1 is a transparent resin.
See also Fig. 2; The present invention also provides a kind of led light source; Said led light source comprises that LED improves colour rendering organic material optical filter 6 and LED luminescence unit 7, and said LED improves light emission direction the place ahead that colour rendering organic material optical filter 6 is arranged on said LED luminescence unit 7.
The outward appearance that LED of the present invention in addition improves the matrix 1 of colour rendering organic material optical filter can be the glass case of thin slice plane formula, LED spheric bulb lamp or the LED particle of employing glass-encapsulated.When making LED of the present invention and improving colour rendering organic material optical filter, should be making under non-oxygen environment,, cause organic material invalid in order to avoid organic dyestuff and oxygen react.
See also Fig. 3, Fig. 3 is spectral radiance curve contrast sketch map.Wherein, the longitudinal axis is represented radiation intensity (μ w/cm2), and transverse axis is represented wavelength (nanometer); Fine rule is the original LED curve of spectrum; Thick line is the LED curve of spectrum that is provided with after LED of the present invention improves colour rendering organic material optical filter, compares with original LED luminescence unit, and LED of the present invention improves colour rendering organic material optical filter and absorbs half width less than 100 nm; At wavelength is to absorb quantitative wavelength in the spectrum segment of 570 nanometers ~ 600 nanometers, improves the radiation intensity of red light in the spectrum segment.
LED of the present invention improves colour rendering organic material optical filter and is different from prior art: LED of the present invention improves colour rendering organic material optical filter matrix 1 and forms an enclosure space; Organic light absorbent layer 3 that folder is established in the enclosure space is through LED luminescence unit 6; Break white balance for a led light source provided by the invention and improve colour rendering, in utilization, relatively flexibly, power drives is had no requirement; Only its optical filter need be set on the structural design of light fixture, optical filter can be one or more pieces.Optical filter is placed in the light fixture of illumination and special lighting class in addition, and the light source of lamp also can improve colour rendering through its optical filter.
The above is merely embodiments of the invention; Be not so limit claim of the present invention; Every equivalent structure or equivalent flow process conversion that utilizes specification of the present invention and accompanying drawing content to be done; Or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present invention.
Claims (9)
1. a LED improves colour rendering organic material optical filter; It is characterized in that; Said LED improves colour rendering organic material optical filter and comprises matrix and light absorbent; Said light absorbent is the organic light absorbent layer that is located in the said matrix, and the absorbing wavelength of said light absorbent comprises 570 nanometers ~ 600 nanometers.
2. LED according to claim 1 improves colour rendering organic material optical filter, it is characterized in that, said matrix comprises formation one enclosure space, and said light absorbent is positioned at said enclosure space.
3. LED according to claim 1 improves colour rendering organic material optical filter; It is characterized in that; Said matrix comprises two protective layers and two adhesive layers; Said protective layer lays respectively at the relative both sides of said organic light absorbent layer, and said two adhesive layers are bonding with two protective layers and said organic light absorbent layer respectively.
4. LED according to claim 3 improves colour rendering organic material optical filter, it is characterized in that said adhesive layer is a glue.
5. LED according to claim 3 improves colour rendering organic material optical filter, it is characterized in that said organic light absorbent layer is a dyestuff.
6. LED according to claim 5 improves colour rendering organic material optical filter, it is characterized in that said dyestuff comprises one or more in Hua Jing, azo, oxaza and the anthraquinone.
7. LED according to claim 1 improves colour rendering organic material optical filter, it is characterized in that said matrix is a transparent resin.
8. a led light source is characterized in that, comprises that any described LED of claim 1 to 7 improves colour rendering organic material optical filter.
9. led light source according to claim 8 is characterized in that, further comprises a LED luminescence unit, and said LED improves light emission direction the place ahead that colour rendering organic material optical filter is arranged on said LED luminescence unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101932635A CN102392978A (en) | 2011-07-12 | 2011-07-12 | Organic-material filter for improving color-rendering property of LED (Light-Emitting Diode) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101932635A CN102392978A (en) | 2011-07-12 | 2011-07-12 | Organic-material filter for improving color-rendering property of LED (Light-Emitting Diode) |
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| Publication Number | Publication Date |
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| CN102392978A true CN102392978A (en) | 2012-03-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101932635A Pending CN102392978A (en) | 2011-07-12 | 2011-07-12 | Organic-material filter for improving color-rendering property of LED (Light-Emitting Diode) |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108302335A (en) * | 2016-08-29 | 2018-07-20 | 欧普照明股份有限公司 | A kind of lighting device and the lamps and lanterns including the lighting device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1189512A (en) * | 1997-01-28 | 1998-08-05 | 协和发酵工业株式会社 | Molded synthetic resin |
| CN101026066A (en) * | 2006-02-22 | 2007-08-29 | 三星康宁株式会社 | Display filter and display apparatus having the same |
| US20100315693A1 (en) * | 2009-06-11 | 2010-12-16 | Switch Materials, Inc. | Variable transmittance optical filter and uses thereof |
-
2011
- 2011-07-12 CN CN2011101932635A patent/CN102392978A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1189512A (en) * | 1997-01-28 | 1998-08-05 | 协和发酵工业株式会社 | Molded synthetic resin |
| CN101026066A (en) * | 2006-02-22 | 2007-08-29 | 三星康宁株式会社 | Display filter and display apparatus having the same |
| US20100315693A1 (en) * | 2009-06-11 | 2010-12-16 | Switch Materials, Inc. | Variable transmittance optical filter and uses thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108302335A (en) * | 2016-08-29 | 2018-07-20 | 欧普照明股份有限公司 | A kind of lighting device and the lamps and lanterns including the lighting device |
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Application publication date: 20120328 |