Color and Illuminance Uniformity Enhancement of Multi-chip White LEDs by Complementing Silica Particles

Q4 Computer Science

International Journal of Automation and Smart Technology Pub Date : 2017-06-01 DOI:10.5875/AUSMT.V7I2.1261

P. Tin, T. Minh, N. H. Nhan, N. Q. Anh

引用次数: 0

Abstract

We analyze the influence of silica particle (SiO2) concentrations on color and illuminance uniformity of multi-chip white LEDs (MCW-LEDs) with a correlated color temperature (CCT) near 7700 K. It is suggested that the novel phosphor silicone layer (PSL), which added silica particles, can improve CCT and illumination uniformity. Using the commercial simulation program LightTools, based on Monte Carlo method, the novel PSL demonstrated a reduction of the CCT deviation (DCCT) to 1719 K from 2211 K, while the illuminance uniformity increased from 0.328 to 0.353. The simulation results could be totally convinced by Mie theory. This results point towards an approach for manufacturing high-quality MCW-LEDs.

查看原文本刊更多论文

通过补充二氧化硅颗粒增强多芯片白光LED的颜色和照度均匀性

在相关色温(CCT)接近7700 K时，研究了二氧化硅颗粒(SiO2)浓度对多芯片白光led (mcw - led)颜色和照度均匀性的影响。结果表明，添加二氧化硅颗粒的新型荧光硅酮层(PSL)可以改善CCT和照明均匀性。利用商业模拟程序LightTools，基于蒙特卡罗方法，新型PSL显示出CCT偏差(DCCT)从2211 K降低到1719 K，而照度均匀度从0.328增加到0.353。模拟结果完全符合Mie理论。这一结果指出了制造高质量mcw - led的方法。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

International Journal of Automation and Smart Technology Engineering-Electrical and Electronic Engineering

CiteScore

0.70

自引率

0.00%

发文量

审稿时长

16 weeks

期刊介绍： International Journal of Automation and Smart Technology (AUSMT) is a peer-reviewed, open-access journal devoted to publishing research papers in the fields of automation and smart technology. Currently, the journal is abstracted in Scopus, INSPEC and DOAJ (Directory of Open Access Journals). The research areas of the journal include but are not limited to the fields of mechatronics, automation, ambient Intelligence, sensor networks, human-computer interfaces, and robotics. These technologies should be developed with the major purpose to increase the quality of life as well as to work towards environmental, economic and social sustainability for future generations. AUSMT endeavors to provide a worldwide forum for the dynamic exchange of ideas and findings from research of different disciplines from around the world. Also, AUSMT actively seeks to encourage interaction and cooperation between academia and industry along the fields of automation and smart technology. For the aforementioned purposes, AUSMT maps out 5 areas of interests. Each of them represents a pillar for better future life: - Intelligent Automation Technology. - Ambient Intelligence, Context Awareness, and Sensor Networks. - Human-Computer Interface. - Optomechatronic Modules and Systems. - Robotics, Intelligent Devices and Systems.