Optical Modeling Analysis of Red, Green, and Yellow Phosphors with a Blue LED

Author:

Sun Wen-Shing1,Tien Chuen-Lin2ORCID

Affiliation:

1. Department of Optics and Photonics, National Central University, Chungli 32001, Taiwan

2. Department of Electrical Engineering, Feng Chia University, Taichung 40724, Taiwan

Abstract

The luminous properties of red, green, and yellow phosphors with a blue LED are evaluated and a corresponding optical model is constructed using the optical simulation software LightTools®. According to the phosphor particle model, the desired chromaticity coordinate of the multicomponent light which is excited by a blue LED can be achieved by modifying the weight concentration of the phosphors. A comparison of the four types of LED package modules tested shows that the yellow phosphor encapsulated with a semispherical module takes up a lesser percentage of the total weight percentage of a constructed white light with a correlated color temperature of around 4000 K. The simulation and experimental results provide a cross-reference for better packaging and encapsulating designs for lumen improvement.

Funder

Ministry of Science and Technology, Taiwan

Publisher

Hindawi Limited

Subject

Condensed Matter Physics

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