CN102401918B - LED coated filter - Google Patents
LED coated filter Download PDFInfo
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- CN102401918B CN102401918B CN2011101932387A CN201110193238A CN102401918B CN 102401918 B CN102401918 B CN 102401918B CN 2011101932387 A CN2011101932387 A CN 2011101932387A CN 201110193238 A CN201110193238 A CN 201110193238A CN 102401918 B CN102401918 B CN 102401918B
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- plating layer
- film plating
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- extinction film
- coated filter
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Abstract
The invention discloses an LED coated filter, which comprises a base body, a first light absorption coating layer and a second light absorption coating layer; the first and second light absorption coating layers both include rare earth oxides; the absorption wavelength of the first light absorption coating layer is 570-600nm; and the absorption wavelength of the second light absorption coating layer is 440-480nm. In this way, the LED coated filter can readjust spectrum contents of two different wavelengths in white light spectrum, so that harmful spectrum range influencing health of the people and organisms is reduced while LED color rendering index is improved.
Description
Technical field
The present invention relates to the illumination optical technical field, particularly relate to a kind of for improving the LED(light emitting diode) colour rendering, reduce the coated filter that blue light endangers.
Background technology
New LED (light emitting diodes, light emitting diode) lighting source replaces conventional lighting source just gradually with its energy-saving and environmental protection, durable characteristics, becomes main flow world lighting field.Although the LED lighting engineering has clear superiority aspect energy-conservation and efficient illumination, the poor anomalous trichromatism that easily causes of colour rendering of LED light source simultaneously can not the rediscover color, and ultraviolet ray and the blue light spectral coverage of different proportion are arranged in the spectrum of LED.These are all affecting our the daily life rhythm and pace of moving things, and also we want acutely aware LED illumination to the risk of human-body biological secure context in prompting simultaneously.
At present, poor for the narrow colour rendering of LED illumination spectrum, have for improving the colour rendering Adopts measure: the white light that produces after the blue-light excited yellow fluorescent powder of the one, LED and the ruddiness of miniwatt red-light LED mix to promote colour rendering; The 2nd, control by the composition that changes fluorescent powder; The 3rd, RGB three primary colours chip hybrid becomes white light.Above-mentioned scheme has only solved the raising colour rendering, and ultraviolet ray and the blue light spectral coverage of different proportion are arranged in the spectrum for LED, and wherein visible light blue light part can produce damage and unresolved to layer of retina,pigmentary.
Along with the fast development of photobiology research, the photo-biological of LED safety caused the concern of international community day by day in recent years.Since 2002, the third non-visual light receiver (cell) of the relevant mankind, optical radiation progress on the fundamental researchs such as impact of circadian rhythm and internal system provides effective analysis tool and evidence for it is found that and study the potential hazard that artificial light source occurs in application process.Melanopsin is the sensitization opsin that a kind of retinal ganglial cells is expressed, it is continue the third light sensitivity cell outside the cone and rod cell of mammal, its function is to participate in non-Vision imaging system, participates in the activity of regulation and control biological rhythm, pupillary light reflex.Existing studies show that, Melanopsin experiences the surrounding environment light radiant illumination, this sensitization protein ratio is with more responsive to 440 nanometers ~ 480 nanometer spectral coverages in three kinds of photopigments, and this light stimulus is very important to the biological rhythm regulation mechanism of body.There is the multiple tissue that can experience the light circadian changes in non-lactation vertebrate, as pineal body and surrounding tissue, dermal melanin cell etc.Mammal only has the melanopsin/pRGC system can experience the light rhythm and pace of moving things to change.There is experimental result to find that melanopsin is to the regulating action of pupillary light reflex than the regulating action of cone cell large 3 times.The above-mentioned human biological rhythm's of studies show that adjusting might be subject to the LED optical radiation to be affected greatly, and nonstandard LED illumination may extensively produce insomnia in the crowd, dizzy, headache, and nervous function such as the disturbances of emotion etc. widely are abnormal.
In sum, solve simultaneously and improve colour rendering and reduce blue light and endanger this two problems, may need to greatest extent spectrum segment to be changed or improves, with respect to the color wavelength in the colour purity standard, each harmful emission wavelength reduces as far as possible, and need to solve from the angle of considering cost complicated technology.
Summary of the invention
The technical matters that the present invention mainly solves is to provide a kind of LED coated filter, can enough a kind of simple modes readjust two sections different wave length spectrum content in white-light spectrum, when improving colour rendering, reduce people and biological healthy influential unfavorable spectrum segment.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: a kind of LED coated filter is provided, described LED coated filter comprises matrix, the first extinction film plating layer and the second extinction film plating layer that overlaps, described the first extinction film plating layer and described the second extinction film plating layer all comprise rare earth oxide, the absorbing wavelength of described the first extinction film plating layer comprises 570 nanometers ~ 600 nanometers, and the absorbing wavelength of described the second extinction film plating layer comprises 440 nanometers ~ 480 nanometers.
In a preferred embodiment of the present invention, the rare earth oxide that described the first extinction film plating layer comprises is neodymium oxide.
In a preferred embodiment of the present invention, the rare earth oxide that described the second extinction film plating layer comprises is holimium oxide.
In a preferred embodiment of the present invention, the rare earth oxide that described the second extinction film plating layer comprises is the potpourri of praseodymium oxide and neodymium oxide.
In a preferred embodiment of the present invention, described matrix is clear glass matrix or transparent resin matrix.
In a preferred embodiment of the present invention, described the first extinction film plating layer and described the second extinction film plating layer are separately positioned on the relative both sides of described matrix.
In a preferred embodiment of the present invention, described the first extinction film plating layer and described the second extinction film plating layer all are arranged on the same side of described matrix.
The present invention also provides a kind of LED light source, and described LED light source comprises LED luminescence unit and LED coated filter, and described LED coated filter is arranged on light emission direction the place ahead of described LED luminescence unit.Described LED coated filter comprises matrix, the first extinction film plating layer and the second extinction film plating layer that overlaps, described the first extinction film plating layer and described the second extinction film plating layer all comprise rare earth oxide, the absorbing wavelength of described the first extinction film plating layer comprises 570 nanometers ~ 600 nanometers, and the absorbing wavelength of described the second extinction film plating layer comprises 440 nanometers ~ 480 nanometers.
The invention has the beneficial effects as follows: LED coated filter of the present invention absorbs two sections different wavelength in LED luminescence unit spectrum simultaneously; readjust spectral content of all kinds in the LED luminescence unit; when improving the LED colour rendering; reduce blue light spectrum in spectrum; effective protection people and other is biological healthy makes light source that the LED luminescence unit sends closer to natural light.
Description of drawings
Fig. 1 is the institutional framework schematic diagram of LED coated filter of the present invention;
Fig. 2 is another institutional framework schematic diagram of LED coated filter of the present invention;
Fig. 3 is the LED luminescence unit position view of LED coated filter of the present invention.
In accompanying drawing, the mark of each parts is as follows: 1, matrix; 2, the first extinction film plating layer; 3, the second extinction film plating layer; 4, LED luminescence unit.
Embodiment
Below in conjunction with accompanying drawing, preferred embodiment of the present invention is described in detail, thereby so that advantages and features of the invention can be easier to be it will be appreciated by those skilled in the art that, protection scope of the present invention is made more explicit defining.
See also Fig. 1, the embodiment of the present invention comprises: a kind of LED coated filter, comprise the matrix 1, the first extinction film plating layer 2 and the second extinction film plating layer 3 that overlap, described the first extinction film plating layer 2 and described the second extinction film plating layer 3 all comprise rare earth oxide, the absorbing wavelength of described the first extinction film plating layer 2 comprises 570 nanometers ~ 600 nanometers, and the absorbing wavelength of described the second extinction film plating layer 3 comprises 440 nanometers ~ 480 nanometers.
Further, the rare earth oxide that described the first extinction film plating layer 2 comprises is neodymium oxide, and the rare earth oxide that the second extinction plated film 3 comprises is holimium oxide, is perhaps the potpourri of praseodymium oxide and neodymium oxide.The Coating Materials on matrix 1 surface is high-purity neodymium and neodymium target, or is high-purity holmium and holmium target.Matrix 1 is clear glass matrix or transparent resin matrix.The first extinction film plating layer 2 and described the second extinction film plating layer 3 are separately positioned on the relative both sides of matrix 1.
See also Fig. 2, the first extinction film plating layer 2 and the second extinction film plating layer 3 are arranged on the same side of matrix 1.
See also Fig. 3, the LED luminescence unit 4 that LED coated filter of the present invention presents, the matrix 1 of LED coated filter is arranged on light emission direction the place ahead of described LED luminescence unit 4.
The outward appearance of the matrix 1 of LED coated filter of the present invention can be the glass case of thin slice plane formula, LED spheric bulb lamp or the LED particle of employing glass-encapsulated.
LED coated filter of the present invention is different from prior art: the first extinction film plating layer 2 in LED coated filter of the present invention and the absorbing material in the second extinction film plating layer 3 are by LED luminescence unit 4, a LED light source that improves for the present invention is close to natural light, have mildness, reduced true colors.More flexible on using, power drives is had no requirement, only its optical filter need to 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 by its optical filter, and reduces blue color spectrum content.
The above is only embodiments of the invention; not thereby limit the scope of the claims of the present invention; every equivalent structure or equivalent flow process conversion that utilizes instructions of the present invention and accompanying drawing content to do; or directly or indirectly be used in other relevant technical fields, all in like manner be included in scope of patent protection of the present invention.
Claims (7)
1. LED coated filter, it is characterized in that, described LED coated filter comprises the matrix that overlaps, the first extinction film plating layer and the second extinction film plating layer, described the first extinction film plating layer and described the second extinction film plating layer all comprise rare earth oxide, the rare earth oxide that described the first extinction film plating layer comprises is neodymium oxide, the rare earth oxide that described the second extinction film plating layer comprises is the potpourri of praseodymium oxide and neodymium oxide, the absorbing wavelength of described the first extinction film plating layer comprises 570 nanometers ~ 600 nanometers, the absorbing wavelength of described the second extinction film plating layer comprises 440 nanometers ~ 480 nanometers.
2. LED coated filter according to claim 1, is characterized in that, the rare earth oxide that described the second extinction film plating layer comprises is holimium oxide.
3. LED coated filter according to claim 1, is characterized in that, described matrix is clear glass matrix or transparent resin matrix.
4. LED coated filter according to claim 1, is characterized in that, described the first extinction film plating layer and described the second extinction film plating layer are separately positioned on the relative both sides of described matrix.
5. LED coated filter according to claim 1, is characterized in that, described the first extinction film plating layer and described the second extinction film plating layer all are arranged on the same side of described matrix.
6. a LED light source, is characterized in that, comprises the described LED coated filter of claim 1 to 5 any one.
7. LED light source according to claim 6, is characterized in that, further comprises a LED luminescence unit, and described LED coated filter is arranged on light emission direction the place ahead of described LED luminescence unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101932387A CN102401918B (en) | 2011-07-12 | 2011-07-12 | LED coated filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101932387A CN102401918B (en) | 2011-07-12 | 2011-07-12 | LED coated filter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102401918A CN102401918A (en) | 2012-04-04 |
| CN102401918B true CN102401918B (en) | 2013-11-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101932387A Expired - Fee Related CN102401918B (en) | 2011-07-12 | 2011-07-12 | LED coated filter |
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| Country | Link |
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| CN (1) | CN102401918B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104181626A (en) * | 2014-08-29 | 2014-12-03 | 上海和辉光电有限公司 | Polaroid, manufacturing method of polaroid and displayer comprising polaroid |
| CN105864648A (en) * | 2016-03-31 | 2016-08-17 | 中山市帝森电子科技有限公司 | LED lighting lamp with color light rings |
| CN109946775A (en) * | 2017-12-20 | 2019-06-28 | 张家港康得新光电材料有限公司 | Optical filter, preparation method and the imaging device with it |
| CN208535741U (en) * | 2018-07-25 | 2019-02-22 | 深圳市绎立锐光科技开发有限公司 | A kind of LED light device |
| CN114415279B (en) * | 2021-12-28 | 2023-05-12 | 嘉兴敏惠汽车零部件有限公司 | White light-permeable composite film layer and preparation method and application thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2154492Y (en) * | 1992-09-23 | 1994-01-26 | 陈陟岗 | Optical film frame and filter assembly in it |
| CN1535393A (en) * | 2001-05-24 | 2004-10-06 | 丹尼尔・内森・卡彭 | Neodymium oxide doped vehicle windshield, safety glazing material and window glass |
| TW200502591A (en) * | 2003-04-15 | 2005-01-16 | Alps Electric Co Ltd | Multi-layer optical filter and optical component |
| CN101004463A (en) * | 2006-01-20 | 2007-07-25 | 义平有限公司 | Lens for enhancing color contrast |
| JP2008216770A (en) * | 2007-03-06 | 2008-09-18 | Bridgestone Corp | Optical filter and manufacturing method thereof, optical filter for display and display provided with same, and plasma display panel |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010087393A (en) * | 2008-10-02 | 2010-04-15 | Fujinon Corp | Light source device |
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2011
- 2011-07-12 CN CN2011101932387A patent/CN102401918B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2154492Y (en) * | 1992-09-23 | 1994-01-26 | 陈陟岗 | Optical film frame and filter assembly in it |
| CN1535393A (en) * | 2001-05-24 | 2004-10-06 | 丹尼尔・内森・卡彭 | Neodymium oxide doped vehicle windshield, safety glazing material and window glass |
| TW200502591A (en) * | 2003-04-15 | 2005-01-16 | Alps Electric Co Ltd | Multi-layer optical filter and optical component |
| CN101004463A (en) * | 2006-01-20 | 2007-07-25 | 义平有限公司 | Lens for enhancing color contrast |
| JP2008216770A (en) * | 2007-03-06 | 2008-09-18 | Bridgestone Corp | Optical filter and manufacturing method thereof, optical filter for display and display provided with same, and plasma display panel |
Non-Patent Citations (2)
| Title |
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| 潘忠泉等.用氧化钬玻璃滤光片校准分光光度计波长.《计量技术》.1995,31-36. |
| 用氧化钬玻璃滤光片校准分光光度计波长;潘忠泉等;《计量技术》;19951231;第31-36页 * |
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| CN102401918A (en) | 2012-04-04 |
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Effective date of registration: 20151208 Address after: 475500, Kaifeng County, Henan province Weishi industrial agglomeration Village Patentee after: HENAN BALASI OPTOELECTRONICS TECHNOLOGY Co.,Ltd. Address before: Taishan Suzhou high tech Zone 215001 Suzhou Road, Jiangsu province No. 2 (Canton Science Park) Patentee before: Suzhou Kunlun Industry Design Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131106 Termination date: 20160712 |