Free form lens and heat sink design for LED illumination

ASIA unversity > 資訊學院 > 光電與通訊學系 > 博碩士論文 > Item 310904400/11567

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题名:	Free form lens and heat sink design for LED illumination
作者:	Chen-Bo Yan
贡献者:	Department of Photonics and Communication Engineering
关键词:	LED
日期:	2011
上传时间:	2011-09-30 01:08:45 (UTC+0)
出版者:	Asia University
摘要:	The aim of this thesis is to analize the light field radiated from the LED collimator based on the free form secondary optics. It also discusses the thermal distribution cased by different type of heat sink design. The free form collimator can be divided into two parts: the reflection and refraction sections. By the helps of light distribution simulation tool, we can see how light field affected by the start point. For real application, we got an approximate scale of start point length with LED’s size. It gives an idea how to choose the start point of free form collimator to reach as high as 80.17% light collection. Heat sink is a critical point to enhance LED life time and stability of spectrum distribution. This thesis shows the evidence that based on the same power, thermal generated by multi-items LED is lower than that of single chip LED. Relationship between the LED’s geometry setting and its thermal distribution were also discussed.
显示于类别:	[光電與通訊學系] 博碩士論文

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