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曲面近场发光二极管阵列照度均匀性分析与设计 被引量:1

Analysis and Design of Illumination Uniformity of Curved Near-Field Light Emitting Diode Array
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摘要 健康医疗领域中往往需要曲面光源照射曲面被测物,如何设计发光二极管(LED)阵列,使其产生均匀的照度分布具有一定的研究意义。为此,将柱面LED曲面面阵分成两部分,直线LED阵列和环形LED阵列。对曲面LED阵列光源和柱状曲面目标接收面的光场分布构建了反映照度分布的目标函数,确定了环形LED阵列的照度均匀性由LED灯珠的光辐射参数、灯珠阵列曲面半径、接收曲面半径和相邻两灯珠之间的夹角决定。采用TracePro光线追迹法分别计算了两种阵列的照度分布情况,通过优化LED曲面面阵排布,在柱面目标面上产生了均匀的照度分布。 In the field of health care,curved surface light sources are often required to illuminate the surface of the test object.It is of research significance to design a light-emitting diode(LED)array to produce uniform illumination distribution.In this paper,the cylindrical LED surface array is divided into two parts,a linear LED array and a circular LED array.The objective function distribution is constructed for the light field distribution of the curved LED array source and the column-shaped surface target receiving surface.The illumination uniformity of the illumination of the annular LED array is determined by the optical radiation parameters of the LED lamp beads,the lamp array surface radius,the receiving surface radius,and the angle between adjacent two lamp beads.The illuminance distribution of the two arrays is calculated by TracePro ray tracing method.By optimizing the arrangement of the LED surface array,a uniform illumination distribution is obtained on the cylindrical target surface.
作者 陈玉芳 张昊 王敏 何剑飞 Chen Yufang;Zhang Hao;Wang Min;He Jianfei(Key Laboratory of Opto-Electronic Science and Technology for Medicine of Ministry of Education,College of Photonic and Electronic Engineering,Fujian Normal University,Fuzhou,Fujian 350007,China;Fujian Hongbo Opto-Electronic Technology Co.Ltd,Fuzhou,Fujian 350007,China)
出处 《激光与光电子学进展》 CSCD 北大核心 2020年第16期266-272,共7页 Laser & Optoelectronics Progress
基金 中央引导地方科技发展专项(2017L3009) 福建省科技厅高校产学合作项目(2019H6013) 福建省科技厅项目(2018G32)。
关键词 成像系统 发光二极管曲面阵列 光照度均匀性 光学设计 医疗 imaging systems light-emitting diode surface array illumination uniformity optical design medical treatment
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