CN103730454A - LED with functions of adjusting color temperature and improving color rendering - Google Patents
LED with functions of adjusting color temperature and improving color rendering Download PDFInfo
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- CN103730454A CN103730454A CN201310686393.1A CN201310686393A CN103730454A CN 103730454 A CN103730454 A CN 103730454A CN 201310686393 A CN201310686393 A CN 201310686393A CN 103730454 A CN103730454 A CN 103730454A
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- led
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Abstract
The invention relates to an LED, in particular to an LED with functions of adjusting the color temperature and improving the color rendering. The LED comprises a substrate, an electrical induced blue light emitting LED unit arranged on the substrate, and a packaging body with yellow fluorescent powder distributed. The LED is characterized by further comprising a first LED unit comprising at least one electrically induced red light emitting LED wafer, the electrical induced blue light emitting LED unit and the first LED unit are connected with respective drive power sources through electrodes, and the electrical induced blue light emitting LED unit and the first LED unit are packaged in the packaging body. The LED with the functions of adjusting the color temperature and improving the color rendering can overcome the defect that the color rendering performance of a common LED is poor, and can improve the color rendering performance of the LED, especially the color rendering performance and brightness when color temperature is low.
Description
Technical field
The present invention relates to light-emitting diode, particularly a kind of light-emitting diode with adjustable color temperature raising coloring function.
Background technology
Light-emitting diode (LED), is a kind of semiconductor subassembly, multiplex as indicator light, display panel etc. at the beginning; Along with the appearance of white light LEDs, be also used as illumination; Because it has advantages of that efficiency is high, the life-span is long, can recycling, anti-seismic performance well not the conventional light source such as cracky cannot compare with it, and be widely used by multi-field.With reference to Fig. 1, Fig. 2.Existing LED comprises pedestal 1, is located at the packaging body 4 that the electricity on pedestal causes blue light-emitting LED unit 2 and is scattered with yellow fluorescent powder, the blue-ray LED wafer 21 of blue-ray LED unit is packaged in packaging body 4, the cathode and anode of blue-ray LED wafer 21 is electrically connected electrode 51,52, and external power source provides drive current by electrode for 2 yuan of blue-ray LED lists.What this LED adopted is blue-ray LED wafer force mouth yellow fluorescent powder, when yellow fluorescent powder is subject to after blue-light excited to send sodium yellow, result, blue light and yellow light mix are sent white light, but its color rendering is poor is only 60-80, and especially when low colour temperature, its color rendering and brightness thereof are poorer.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, the light-emitting diode of a kind of adjustable color temperature and colour developing is provided, improve the poor deficiency of common light-emitting diode color rendering, improve the color rendering of LED, particularly color rendering and brightness during low colour temperature.
For achieving the above object, the technical scheme that this aspect provides is:
Have that the light-emitting diode that adjustable color temperature improves coloring function comprises pedestal, the electricity be located on pedestal causes the LED unit of blue light-emitting and the packaging body that is scattered with yellow fluorescent powder;
On wherein said pedestal, be also equiped with the 2nd LED unit, the 2nd LED unit at least comprises that an electricity causes the LED wafer glowing; Blue-ray LED unit, the 2nd LED unit connect driving power separately by electrode respectively; Blue light-emitting LED unit and the 2nd LED unit are together packaged in described packaging body;
In described the 2nd LED unit, also comprise that a plurality of electricity cause the LED wafer that sends respectively other different wave length visible rays, after all wafers serial connection, be electrically connected counter electrode; Described packaging body adopts epoxy resin or silica gel transparent material to make.
The invention has the beneficial effects as follows and in the packaging body of light-emitting diode, be provided with the LED wafer that two-way is independently connected separately, wherein a road is the LED unit that known electricity causes blue light-emitting; Another road at least comprises that an electricity causes the 2nd LED unit of the LED wafer that glows.After yellow fluorescent powder is excited by blue-ray LED unit, send sodium yellow, blue light and yellow light mix form white light, and the 2nd LED unit provides red visible ray at least again, and LED color rendering is increased to more than 88.Blue-ray LED unit, the 2nd LED unit drive respectively, and when different electric current is adjusted in the 2nd LED unit, it can make colour temperature change equally, and when low colour temperature, its brightness can show get Geng Gao; If reduce illumination, need only adjust blue-ray LED unit.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is described in further detail.
Fig. 1 is the structural representation of existing light-emitting diode (LED).
Fig. 2 is the cutaway view of existing light-emitting diode (LED).
Fig. 3 is structural representation of the present invention.
Fig. 4 is structure cutaway view of the present invention.
Embodiment
As shown in Figure 3, Figure 4.The light-emitting diode of adjustable color temperature and colour developing, comprises pedestal 1, is equiped with LED unit 2 and the 2nd LED unit 3 that electricity causes blue light-emitting on pedestal 1, and blue-ray LED unit 2 and the 2nd LED unit 3 are together packaged in packaging body 4.Packaging body 4 adopts epoxy resin, silica gel or other transparent materials to make; Packaging body 4 is scattered with the yellow fluorescent powder being covered on blue-ray LED unit 2 and a LED unit 3.
Blue-ray LED unit 2 comprises blue-ray LED wafer 21, and the cathode and anode of blue-ray LED wafer 21 is electrically connected electrode 51,52, and external power source provides drive current by electrode 51,52 for blue-ray LED unit 2.Blue-ray LED unit 2 is conventional construction, at this, is not described in detail.
The 2nd LED unit 3 is installed on pedestal 1 with above-mentioned 2 intervals, blue-ray LED unit, it includes a plurality of electricity and causes the LED wafer 31 that glows, after all red-light LED wafers 31 serial connection of the one LED unit, cathode and anode is electrically connected counter electrode 61,62, and another separate external power source provides drive current by electrode for blue-ray LED unit.The power of the 2nd all red-light LED wafers 31 in LED unit is roughly 1/3 of 2 blue-ray LED unit, blue-ray LED unit.But be not limited to this, the 2nd LED is mono-also can comprise one or more LED wafers in other visible rays such as yellow, blueness, green, all the 2nd 1ED unit wafers are mutually connected in series rear cathode and anode and are electrically connected counter electrode 61,62.Blue-ray LED unit 2, a LED unit 3 be respectively by power supply drive separately, and while adjusting the 2nd LED unit 3 electric current, it can make colour temperature change equally, and when low colour temperature, its brightness can show get Geng Gao; If reduce illumination, need only adjust blue-ray LED unit 2.
The above, be only preferred embodiment of the present invention, is not the present invention to be done to the restriction of other form, and any those skilled in the art may utilize the technology contents of above-mentioned announcement to be changed or be modified as the equivalent embodiment of equivalent variations.But every technical solution of the present invention content that do not depart from, any simple modification, equivalent variations and the remodeling above embodiment done according to technical spirit of the present invention, still belong to the protection range of technical solution of the present invention.
Claims (1)
1. have the light-emitting diode that adjustable color temperature improves coloring function, the electricity of comprise pedestal, being located on pedestal causes the LED unit of blue light-emitting and the packaging body that is scattered with yellow fluorescent powder; It is characterized in that: on described pedestal, be also equiped with the 2nd LED unit, the 2nd LED unit at least comprises that an electricity causes the LED wafer glowing; Blue-ray LED unit, the 2nd LED unit connect driving power separately by electrode respectively; Blue light-emitting LED unit and a LED unit are together packaged in described packaging body; In a described LED unit, also comprise that a plurality of electricity cause the LED wafer that sends respectively other different wave length visible rays, after all wafers serial connection, be electrically connected counter electrode; Described packaging body adopts epoxy resin or silica gel transparent material to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310686393.1A CN103730454A (en) | 2013-12-13 | 2013-12-13 | LED with functions of adjusting color temperature and improving color rendering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310686393.1A CN103730454A (en) | 2013-12-13 | 2013-12-13 | LED with functions of adjusting color temperature and improving color rendering |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103730454A true CN103730454A (en) | 2014-04-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310686393.1A Withdrawn CN103730454A (en) | 2013-12-13 | 2013-12-13 | LED with functions of adjusting color temperature and improving color rendering |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103730454A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105932145A (en) * | 2016-07-17 | 2016-09-07 | 王培培 | LED packaging structure and light string structure formed thereof |
| CN106024769A (en) * | 2016-07-17 | 2016-10-12 | 王培培 | Semiconductor lighting device |
-
2013
- 2013-12-13 CN CN201310686393.1A patent/CN103730454A/en not_active Withdrawn
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105932145A (en) * | 2016-07-17 | 2016-09-07 | 王培培 | LED packaging structure and light string structure formed thereof |
| CN106024769A (en) * | 2016-07-17 | 2016-10-12 | 王培培 | Semiconductor lighting device |
| CN105932145B (en) * | 2016-07-17 | 2018-02-13 | 深圳市乐的美光电股份有限公司 | A kind of LED encapsulation structure and its lamp string structure of formation |
| CN106024769B (en) * | 2016-07-17 | 2018-10-02 | 管伟 | A kind of semiconductor illumination device |
| CN109442229A (en) * | 2016-07-17 | 2019-03-08 | 管伟 | Semiconductor illumination device with LED light string |
| CN109442229B (en) * | 2016-07-17 | 2020-07-14 | 乐清市智格电子科技有限公司 | Semiconductor lighting device with L ED lamp string |
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| PB01 | Publication | ||
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| C04 | Withdrawal of patent application after publication (patent law 2001) | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20140416 |