Optical and thermal analysis of secondary optics in light emitting diodes' packaging: Analysis of MR16 lamp

Name: Optical and thermal analysis of secondary optics in light emitting diodes' packaging: Analysis of MR16 lamp
Author: Azarifar, Mohammad, Cengiz, Ceren, Arık, Mehmet

İsim	Optical and thermal analysis of secondary optics in light emitting diodes' packaging: Analysis of MR16 lamp
Yazar	Azarifar, Mohammad, Cengiz, Ceren, Arık, Mehmet
Basım Tarihi:	2021-12-08
Basım Yeri	- IOP Publishing
Tür	Belge
Dil	İngilizce
Dijital	Evet
Yazma	Hayır
Kütüphane:	Özyeğin Üniversitesi
Demirbaş Numarası	1742-6588
Kayıt Numarası	966beca2-1a3a-462f-9f5b-6c8715a30d6f
Lokasyon	Mechanical Engineering
Tarih	2021-12-08
Notlar	Ozyegin University College of Engineering and EVATEG Center
Örnek Metin	Optical and thermal control are two main factors in package design process of lighting products, specifically light emitting diodes (LEDs). This research is aimed to study the role of secondary optics in opto-thermal characterization of LED packages. Novel thin total internal reflection (TIR) multifaceted reflector (MR) lens is modelled and optimized in Monte-Carlo ray-tracing simulations for MR16 package, regarded as one of the widely used LED lighting products. With criteria of designing an optical lens with 50% reduced thickness in comparison to commercially available lenses utilized in MR16 packages, nearly same light extraction efficiency and more uniform beam angles are achieved. Optical performance of the new lens is compared with the experimental results of the MR16 lamp with conventional lens. Only 2.3% reduction in maximum light intensity is obtained while lens size reduction was more than 25%. Based on the detailed CAD design, heat transfer simulations are performed comparing the lens thickness effect on heat dissipation of MR16 lamp. It was observed that using thinner lenses can reduce the lens and chip temperature, which can result in improved light quality and lifetime of both lens and light source.
DOI	10.1088/1742-6596/2116/1/012121
Cilt	2116

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Optical and thermal analysis of secondary optics in light emitting diodes' packaging: Analysis of MR16 lamp

Yazar Azarifar, Mohammad, Cengiz, Ceren, Arık, Mehmet

Basım Tarihi 2021-12-08

Basım Yeri - IOP Publishing

Tür Belge

Dil İngilizce

Dijital Evet

Yazma Hayır

Kütüphane Özyeğin Üniversitesi

Demirbaş Numarası 1742-6588

Kayıt Numarası 966beca2-1a3a-462f-9f5b-6c8715a30d6f

Lokasyon Mechanical Engineering

Tarih 2021-12-08

Notlar Ozyegin University College of Engineering and EVATEG Center

Örnek Metin Optical and thermal control are two main factors in package design process of lighting products, specifically light emitting diodes (LEDs). This research is aimed to study the role of secondary optics in opto-thermal characterization of LED packages. Novel thin total internal reflection (TIR) multifaceted reflector (MR) lens is modelled and optimized in Monte-Carlo ray-tracing simulations for MR16 package, regarded as one of the widely used LED lighting products. With criteria of designing an optical lens with 50% reduced thickness in comparison to commercially available lenses utilized in MR16 packages, nearly same light extraction efficiency and more uniform beam angles are achieved. Optical performance of the new lens is compared with the experimental results of the MR16 lamp with conventional lens. Only 2.3% reduction in maximum light intensity is obtained while lens size reduction was more than 25%. Based on the detailed CAD design, heat transfer simulations are performed comparing the lens thickness effect on heat dissipation of MR16 lamp. It was observed that using thinner lenses can reduce the lens and chip temperature, which can result in improved light quality and lifetime of both lens and light source.

DOI 10.1088/1742-6596/2116/1/012121

Cilt 2116