Phosphor converted white light emitting diode with high angular cct uniformity by adding scattering particles
Journal
Digest of Technical Papers - SID International Symposium
Journal Volume
46
Journal Issue
Book 3
Pages
1495-1497
Date Issued
2015
Author(s)
Abstract
The most common white LED is phosphor converted. It uses a blue LED chip to excite yellow phosphors to create white light However, this type of white LED has poor angular CCT uniformity because of the structure of colloid or the light distribution of blue LED chip. It was reported to hurt our eyes for long-term work under illumination of such a white LED. Therefore, this paper will be focused on the discussion of phosphor converted white LED. Then, we will try to reduce the poor angular uniformity by adding scattering particles into the colloid. © 2015 SID.
Subjects
Angular uniformity; Conformal phosphor; Phosphor; Remote phosphor; Scattering particle
Other Subjects
Angular distribution; Light emission; Phosphors; Angular uniformity; Blue LED chips; Light distribution; Phosphor converted white leds; Remote phosphors; Scattering particles; White light emitting diodes; Yellow phosphors; Light emitting diodes
Type
conference paper