In this paper, we propose Ca[Mg3SiN4]Ce 3+ Phosphor as a new material solution for improving the optical properties in terms of CRI, CQS. D-CCT, LO of the 5600K remote-packaging white LEDs (RP-WLEDs). In the first stage, we built and...
moreIn this paper, we propose Ca[Mg3SiN4]Ce 3+ Phosphor as a new material solution for improving the optical properties in terms of CRI, CQS. D-CCT, LO of the 5600K remote-packaging white LEDs (RP-WLEDs). In the first stage, we built and investigated the 5600K RP-WLEDs by adding the red phosphor to the phosphor layer. Then, the scattering processes inside the phosphor layer are investigated by Mat Lab software. From the research results, we discovered that the concentration of the adding phosphor significantly improved the optical properties of the 5600K RP-WLEDs. All the results are convinced by Light Tools and Mat Lab software. 1. INTRODUCTION In comparison with incandescent and fluorescent lamps, the InGaN-based white-light-emitting diodes (LEDs) have many advantages in energy efficiency, long lifetime, compactness, and environment-friendly and designable features. Phosphor converted LEDs (pcLED), which combines a blue LED chip and the yellow emitting phosphor, is the most common way to conduct the white light emission through LEDs packaging [1-5]. Thickness and concentration of phosphor are considered as the main factors in the white LEDs packaging because the luminous flux and color of LEDs are adjusted mainly through changing the phosphor thickness and concentration after the phosphor converters are chosen. The influence of phosphor thickness and concentration on LEDs luminous flux and CCT is studied in [6, 7] by experiment. Authors in [8] investigated the effects of phosphor thickness, concentration, and size on the spatial color distribution of white LEDs. In [9-12], the effect of phosphor location on the spatial color distribution was investigated. Moreover, some researchers were concentrated on enhancing the optical performance of multi-chip white LEDs (MCW-LEDs) by adding green or red phosphor into the phosphor layer [13-17]. The optical properties of the 5600K RP-WLEDs is considered as a novel method. From the research, results we can state that the CCT Deviation (D-CCT), CRI, CQS, and lumen output may be significantly increased by varying the concentration of α Ca[Mg3SiN4]Ce 3+ phosphor particles from 10% to 30%. In this paper, we focus on the main contributions as follows: a. We conduct the RP-WLEDs model by Light Tools software. b. The scattering process in the phosphor layer of the RP-WLEDs is investigated with Mat Lab software.