CN2567782Y - High-brightness white-light diode white-light source - Google Patents
High-brightness white-light diode white-light source Download PDFInfo
- Publication number
- CN2567782Y CN2567782Y CN02205967U CN02205967U CN2567782Y CN 2567782 Y CN2567782 Y CN 2567782Y CN 02205967 U CN02205967 U CN 02205967U CN 02205967 U CN02205967 U CN 02205967U CN 2567782 Y CN2567782 Y CN 2567782Y
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- CN
- China
- Prior art keywords
- light source
- white
- chip
- light
- blue
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Abstract
The utility model relates to a high-brightness white light diode white-light source, which comprises a chip, conducting wires, a supporting seat light-reflecting bowl, a fluorescent layer, a terminal and a colorless resin mushroom head. The utility model is characterized in that the blue-light chip which is used as a blue light source and has the wavelength of 430 to 475 NM is arranged in the supporting seat light-reflecting bowl; the blue-light chip is conducted and connected with the terminal; one layer of yellow fluorescent layer is covered on the chip. The white light source composed of the structure is contained in the mushroom head by transparent resin.
Description
The utility model relates to a kind of high-brightness white-light light emitting semiconductor device.Be particularly related to the white light source of the white light die that is coated with fluorescent material.
At present, various source materials all develop to energy-conservation, pollution-free direction aspect.Though the fluorescent lamp energy savings, fluorescent material often causes environmental pollution when discarded, and the useful life of fluorescent lamp is also shorter.Light-emitting diode is as a kind of display device, not only saved the energy but also pollution-free, but light-emitting diode has only the RGB isochrome usually, and luminosity is not high, must improve as a kind of lighting source.White light-emitting diodes is the target that people crave for always.Achievement in research in the past is for to become white light-emitting diodes with the three primary colors LED chip, still, its complex structure, manufacturing cost is very high, particularly the impure problem of color occurs because of indivedual single color LED deteriorations.Ri Ben Ri Ya chemical company had developed the fluorescent material cooperation blue light-emitting diode with jaundice spectrum row afterwards, produced the light source that emits white light.Yet the white light source that the patent of Ri Ya company is invented has important disadvantages, it is the blue light that its employed phosphor powder layer only can be applicable to specific wavelength, if the wavelength change of blue light source, then the impure problem of white light that is produced appears in the conversion efficiency of gold-tinted meeting deterioration.And in fact blue light source is along with the difference of material and manufacturing process, and the centre wavelength of being launched can change to some extent, and is general in the scope of 430～475 nanometers, so the patented technology of Ri Ya company has sizable problem in practicality.
The purpose of this utility model is to provide a kind of white light source of high brightness pure color, and promptly can cooperate the blue light of 430～475 nanometer range and produce the white light source of high-brightness white-light, and the setting by transparent resin mushroom head, so that high-quality white light source to be provided.This lighting source has characteristics such as total solids, pollution-free, life-span length, usefulness height, can be widely used in office equipment, shows, automotive lighting shows, general lighting demonstration etc.
The purpose of this utility model realizes by technical scheme shown in the drawings, accompanying drawing is the utility model structural representation, it comprises chip 1, lead 2, supporting seat reflector 3, several terminals 4 and colourless resin mushroom 5 composition, it is characterized in that being provided with in the supporting seat reflector 3 as the wavelength of blue light source is the blue chip 1 of 430 ~ 475 nanometers, itself and terminal 4 connect, and be coated with one deck yellow fluorescence layer 6 on the chip, the blue-light excited yellow fluorescence layer that chip sends sends the white light that gold-tinted can form high brightness with blue-light source.Be included in the mushroom head with transparent resin at the white light source that constitutes thus.
The chemical composition of this yellow fluorescence layer is Y
3Al
4.8Ga
0.2O
12: 0.01Ce, 0.1Gd or Y
3Al
4.8Ga
0.2O
12: 0.01Ce, 0.2Gd.Can in operation wavelength 430～475 nanometer range, obtain the gold-tinted transfer ratio of high brightness.
Wherein said blue light source is InGaN or GaN type blue LED chip.
The emission wavelength of fluorescence coating is in 530～560 nanometers, and the thickness of fluorescence coating is at 0.1～0.9 micron, and the colour temperature (color) that the thickness difference of fluorescence coating can make the light that diode sends and color rendering index (light color pure) are different.
Characteristics of the present utility model are:
When the blue light source wavelength variation of using, determine the purity of white light by the ratio of Ce and Gd in the adjusting fluorescence coating, and send the white light of high brightness.The life-span of diode can reach more than 100,000, is more than 100 times of incandescent lamp and fluorescent lamp, and power consumption only be identical luminosity light source 1/10th, energy-saving effect is fairly obvious.
Accompanying drawing is the utility model structural representation, below conjunction with figs. the utility model is described.But claim scope of the present utility model is not subjected to the restriction of following embodiment.
Embodiment 1:
White light-emitting diodes is by chip 1, lead 2, supporting seat reflector 3, several terminals 4 and colourless resin mushroom 5 composition, it is characterized in that being provided with in the supporting seat reflector 3 as the wavelength of blue light source is the blue chip 1 of 440 nanometers, itself and terminal 4 connect, and are coated with one deck yellow fluorescence layer 6 on the chip, and the chemical composition of this yellow fluorescence layer is Y
3Al
4.8Ga
0.2O
12: the gold-tinted that the blue-light excited yellow fluorescence layer that 0.01Ce, the yellow fluorescence layer of 0.1Gd, chip send sends is 540 nanometers, with the white light of blue-light source formation high brightness.The white light source that constitutes thus is included in mushroom 5 with transparent resin in.
Embodiment 2:
White light-emitting diodes is by chip 1, lead 2, supporting seat reflector 3, several terminals 4 and colourless resin mushroom 5 composition, it is characterized in that being provided with in the supporting seat reflector 3 as the wavelength of blue light source is the blue chip 1 of 455 nanometers, itself and terminal 4 connect, and are coated with one deck yellow fluorescence layer 6 on the chip, and the chemical composition of this yellow fluorescence layer is Y
3Al
4.8Ga
0.2O
12: the gold-tinted that the blue-light excited yellow fluorescence layer that 0.01Ce, the yellow fluorescence layer of 0.2Gd, chip send sends is 560 nanometers, with blue-light source form high brightness from light.The white light source that constitutes thus is included in mushroom 5 with transparent resin in.
Claims (2)
1. the diode white light source of a high-brightness white-light, include chip, lead, the supporting seat reflector, fluorescence coating, terminal and colourless resin mushroom head is characterized in that: the wavelength that is provided with in the supporting seat reflector as blue light source is the blue chip of 430 ~ 475 nanometers, and itself and terminal connect, and be coated with one deck yellow fluorescence layer on the chip, be included in the mushroom head with transparent resin at the white light source that constitutes thus.
2. according to the diode white light source of the described high-brightness white-light of claim 1, it is characterized in that wherein said blue light source is InGaN or GaN type blue LED chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN02205967U CN2567782Y (en) | 2002-03-18 | 2002-03-18 | High-brightness white-light diode white-light source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN02205967U CN2567782Y (en) | 2002-03-18 | 2002-03-18 | High-brightness white-light diode white-light source |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2567782Y true CN2567782Y (en) | 2003-08-20 |
Family
ID=33687476
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN02205967U Expired - Fee Related CN2567782Y (en) | 2002-03-18 | 2002-03-18 | High-brightness white-light diode white-light source |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2567782Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100466309C (en) * | 2004-05-27 | 2009-03-04 | 罗姆股份有限公司 | Light emitting diode lamp |
| CN101238592B (en) * | 2005-06-23 | 2010-06-16 | 奥斯兰姆奥普托半导体有限责任公司 | Wavelength-converting converter material, light-emitting optical components, and method for the production thereof |
| US7791274B2 (en) | 2004-01-07 | 2010-09-07 | Panasonic Corporation | LED lamp |
-
2002
- 2002-03-18 CN CN02205967U patent/CN2567782Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7791274B2 (en) | 2004-01-07 | 2010-09-07 | Panasonic Corporation | LED lamp |
| US8405307B2 (en) | 2004-01-07 | 2013-03-26 | Panasonic Corporation | LED lamp |
| CN100466309C (en) * | 2004-05-27 | 2009-03-04 | 罗姆股份有限公司 | Light emitting diode lamp |
| CN101238592B (en) * | 2005-06-23 | 2010-06-16 | 奥斯兰姆奥普托半导体有限责任公司 | Wavelength-converting converter material, light-emitting optical components, and method for the production thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20030820 Termination date: 20100318 |