Open AccessModeling of reflection-type laser-driven white lighting considering phosphor particles and surface topography
Author(s) -
DongHo Lee,
Jinho Joo,
Sun-Kyu Lee
Publication year - 2015
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.23.018872
Subject(s) - phosphor , optics , laser , materials science , lens (geology) , fabrication , optoelectronics , led lamp , diode , luminous flux , total internal reflection , color rendering index , physics , light source , medicine , alternative medicine , pathology
This paper presents a model of blue laser diode (LD)-based white lighting coupled with a yellow YAG phosphor, for use in the proper design and fabrication of phosphor in automotive headlamps. First, the sample consisted of an LD, collecting lens, and phosphor was prepared that matches the model. The light distribution of the LD and the phosphor were modeled to investigate an effect of the surface topography and phosphor particle properties on the laser-driven white lighting systems by using the commercially available optical design software. Based on the proposed model, the integral spectrum distribution and the color coordinates were discussed.