In various embodiments, a conversion LED is provided. The conversion LED may include a chip on which a first layer containing a fluorescent substance is deposited, a second layer containing a second fluorescent substance being deposited on said first layer, wherein the first layer is a potting material in which the first fluorescent substance is dispersed, and wherein the second layer is a solid body, said first layer being provided with a spacer.
1. A conversion LED, comprising:
a chip on which a first layer containing a fluorescent substance is deposited,
a second layer containing a second fluorescent substance being deposited on said first layer,
wherein the first layer is a potting material in which the first fluorescent substance is dispersed, said potting material adhering the chip and the second layer together,
wherein the second layer is a solid body, said first layer being provided with a spacer of a predefined spacing distance, and
wherein the spacer is within the potting material of the first layer.
2. The conversion LED as claimed in 1 ,
wherein the spacer is implemented by balls of predefined diameter.
3. The conversion LED as claimed in 1 ,
wherein the spacer is implemented by frame sections.
4. The conversion LED as claimed in 1 ,
wherein the first fluorescent substance is configured to emit at longer wavelength than the second fluorescent substance.
5. The conversion LED as claimed in 4 ,
wherein the first fluorescent substance is configured to emit red.
6. The conversion LED as claimed in 4 ,
wherein the second fluorescent substance is configured to emit in the green to yellow region.
7. The conversion LED as claimed in 1 ,
wherein the potting material is silicone.
8. The conversion LED as claimed in 2 ,
wherein the balls are made of glass.
9. The conversion LED as claimed in 2 ,
wherein the balls range in diameter from 150 nm to 25 μm.
10. The conversion LED as claimed in 3 ,
wherein the frame sections have breakouts.
11. The conversion LED as claimed in 1 ,
wherein the second layer is a ceramic converter.
12. The conversion LED as claimed in 1 ,
wherein the chip is configured to emit primary radiation in the UV to blue region.
13. The conversion LED as claimed in 5 ,
wherein the first fluorescent substance is configured to emit red, the peak wavelength being in the range 580 to 680 nm.
14. The conversion LED as claimed in 6 ,
wherein the second fluorescent substance is configured to emit in the green to yellow region, the peak wavelength being in the range 480 to 560 nm.
15. The conversion LED as claimed in 12 ,
wherein the chip is configured to emit primary radiation in the range 300 nm to 480 nm.
16. The conversion LED as claimed in 15 ,
wherein a third fluorescent substance is provided.
17. A conversion LED, comprising:
a chip on which a first layer containing a fluorescent substance is deposited,
a second layer containing a second fluorescent substance being deposited on said first layer,
wherein the first layer is a potting material in which the first fluorescent substance is dispersed,
wherein the second layer is a solid body, said first layer being provided with a spacer of a predefined spacing distance,
wherein the spacer is implemented by balls of predefined diameter, and
wherein the spacer is implemented by a single layer of balls distributed within the potting material of the first layer.
18. The conversion LED as claimed in 17 ,
wherein the balls are made of glass.
19. The conversion LED as claimed in 17 ,
wherein the balls range in diameter from 150 nm to 25 μm.
20. The conversion LED as claimed in 1 ,
wherein the spacer is distributed within the potting material of the first layer.