Optical modeling with precise spatial-chromatic light distribution in phosphor-converted white LEDs

Ching Cherng Sun, Yu Yu Chang, Yu Huan Wang, Ching Yi Chen, Yi Chien Lo, Han Hsiang Cheng

研究成果: 書貢獻/報告類型會議論文篇章同行評審

1 引文 斯高帕斯(Scopus)

摘要

White light LEDs become more and more important in display and lighting in various structures. Here a new modeling algorithm for phosphor-converted white light-emitting diodes (pcW-LEDs) is proposed, aiming to perform accurate simulation for color appearance, where potentially enabling optical designers to remove yellowish/bluish spots in LED lighting. The proposed modeling method is applied to simulate a pcW-LED with a hemi spherical lens. The simulation accurately predicts the blue and yellow light distribution. The model is further verified by applying a total internal reflector lens to the pcW-LED. In the midfield region, the blue and yellow light distribution exhibit large variations as the observation distance changed; this varying light pattern for both the blue and yellow lights can be accurately predicted by using the proposed model. The well-established optical model should facilitate designing a pcW-LED that features high-quality illumination and enhances color uniformity.

原文???core.languages.en_GB???
主出版物標題Current Developments in Lens Design and Optical Engineering XVI
編輯Virendra N. Mahajan, Simon Thibault, Virendra N. Mahajan, Simon Thibault, R. Barry Johnson, R. Barry Johnson
發行者SPIE
ISBN(電子)9781628417449, 9781628417449
DOIs
出版狀態已出版 - 2015
事件Conference on Current Developments in Lens Design and Optical Engineering XVI - San Diego, United States
持續時間: 10 8月 201511 8月 2015

出版系列

名字Proceedings of SPIE - The International Society for Optical Engineering
9578
ISSN(列印)0277-786X
ISSN(電子)1996-756X

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???event.eventtypes.event.conference???Conference on Current Developments in Lens Design and Optical Engineering XVI
國家/地區United States
城市San Diego
期間10/08/1511/08/15

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