NDLI: Investigation of effects of phosphor particles on optimal design of surface-mount-device light-emitting diode packaging using ray-tracing simulation

Content Provider	IET Digital Library
Author	Kashiwao, Tomoaki Hiura, Mayu Ikeda, Kenji Deguchi, Mikio Bahadori, Alireza
Abstract	This study presents investigation of effects of phosphor particles on optimal structure and optical design of surface-mount-device (SMD) light-emitting diode (LED) packaging (PKG) using ray-tracing simulation. In the authors’ previous study, effects of the reflection properties of the PKG resin and the lead-frame silver plating on the light extraction efficiency was investigated, and the optimisation method of the cavity angle composing the light reflector of the PKG was proposed. In this study, the optimal cavity angle and reflection properties under the condition of phosphor particles present in mould resin of the top-view PKG are investigated. In addition, the better conditions of the reflection properties under the conditions in which the phosphor is contained and not contained in the mould resin are confirmed. Finally, an optical design method of the SMD LED PKG with the mould resin containing a phosphor is proposed on the basis of the simulation results.
Starting Page	86
Ending Page	93
Page Count	8
ISSN	17518768
Volume Number	12
e-ISSN	17518776
Issue Number	Issue 2, Apr (2018)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-opt/12/2
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-opt.2017.0051
Journal	IET Optoelectronics
Publisher	The Institution of Engineering and Technology
Publisher Date	2017-10-25
Access Restriction	Open
Rights License	Creative Commons Attribution-Non Commercial-No Derivs License (http://creativecommons.org/licenses/by-nc-nd/3.0/)
Subject Keyword	Edge And Boundary Effects; Optical Reflection And Refraction Lead-frame Silver Plating Light Emitting Diode Light Extraction Efficiency Light Reflection Light Reflector Light Source Mould Resin Optical Design Method Optical Design Technique Optical Source And Standard Optical System Design Optical Wave Fronts And Ray Tracing Optimal Cavity Angle Optimal Design Optimal Structure Optimisation Optimisation Method Phosphor Particle Phosphors PKG Resin Product Packaging Ray Tracing Ray-tracing Simulation Reflection Property Resins SMD LED PKG Surface Mount Technology Surface-mount-device Light-emitting Diode Packaging Top-view PKG
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics Electrical and Electronic Engineering

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Study of the Optical Properties of Multi-Particle Phosphors by the FDTD and Ray Tracing Combined Method

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Effect of the Phosphor Geometry on the Luminous Flux of Phosphor-Converted Light-Emitting Diodes

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Investigation of effects of phosphor particles on optimal design of surface-mount-device light-emitting diode packaging using ray-tracing simulation

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