Main reasons causing rapid decay of white LED
Date:2011-05-21 09:56
Status:Be resolved
Question:admin
tenuation . This shows that the phosphor decay is the predominant factor.
Others use the same chip and with a phosphor (the deployment of plastic and concentration are the same), and painted in the blue phosphors on the chip thickness is not the same. This experiment found that a phosphor coating thicker than the thin phosphor coated chip, and its white light decreases rapidly, as shown in Figure 4.
Figure 4 chips phosphor coating thickness, the flux changes with time
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