LED透镜组光学设计与精度分析
|
摘要
采用CREE XLamp XL-M2 LED封装模块作为光源,应用贝塞尔曲线作为透镜自由曲面,通过光学系统设计软件Lighttools,设计了光束角22°、光通量249. 78 lm、光效83. 26%、最大强度1352. 8 cd的LED透镜组。结果表明:采用贝塞尔曲线设计的透镜光学曲面满足成型精度要求,在相同成型工艺参数条件下,注射压缩成型与注射成型相比,透镜组的翘曲变形范围分别为0. 022 8～0. 198 1 mm和0. 007 6～0. 203 4 mm,透镜组的翘曲变形量减小2. 7%,注射压缩成型和注射成型的透镜组轮廓峰谷的高度变化范围分别为-50～50 nm和-200～0 nm,透镜组的表面粗糙度减小40. 6%,与注射成型相比,成型精度和表面形貌精度均较佳,可以明显提高LED透镜组的光学性能。
Using encapsulated module of CREE XLamp XL-M2 LED as light source and Bessel curve as lens free surface,LED lens group with beam angle 22°,luminous flux 249. 78 lm,photosynthetic efficiency 83. 26% and maximum strength1352. 8 cd was designed through the optical system design software Lightools. The results showed that lens optical surface with Bessel curve met the requirement of processing precision. Warpage deformation range and morphological peak valley height variation of lens group in injection compression molding were 0. 022 8 ～ 0. 198 1 mm and-50 ～ 50 nm respectively,and those in injection molding were 0. 007 6 ～ 0. 203 4 mm and-200 ～ 0 nm respectively. Warpage deformation and surface roughness of lens group in injection compression molding reduced 2. 7% and 40. 6% respectively in comparison with those in injection molding under the same processing parameters. Injection compression molding improved the optical performance of LED lens group by means of the superior of processing precision and surface morphological precision.
Using encapsulated module of CREE XLamp XL-M2 LED as light source and Bessel curve as lens free surface,LED lens group with beam angle 22°,luminous flux 249. 78 lm,photosynthetic efficiency 83. 26% and maximum strength1352. 8 cd was designed through the optical system design software Lightools. The results showed that lens optical surface with Bessel curve met the requirement of processing precision. Warpage deformation range and morphological peak valley height variation of lens group in injection compression molding were 0. 022 8 ～ 0. 198 1 mm and-50 ～ 50 nm respectively,and those in injection molding were 0. 007 6 ～ 0. 203 4 mm and-200 ～ 0 nm respectively. Warpage deformation and surface roughness of lens group in injection compression molding reduced 2. 7% and 40. 6% respectively in comparison with those in injection molding under the same processing parameters. Injection compression molding improved the optical performance of LED lens group by means of the superior of processing precision and surface morphological precision.
引文
[1]谢志国,李伟平,李程,等.亮度均匀的LED路灯透镜设计与研究[J].光学与光电技术,2012,10(5):84-88.
[2]杜遥雪,周阳,殷小春,等. LED非球面透镜注射压缩成型工艺稳健性优化分析[J].中国塑料,2016,30(3):78-83.
[3]王乐. LED应用于照明的计算和仿真[J].照明工程学报,2007,18(1):25-30.
[4]陈宇宏,袁渊,周克斌,等.注射压缩成型和注射成型平板的光学性能对比研究[J].工程塑料应用,2010,38(9):25-28.
[5]李毅超,张宜生,李德群.透明塑料板件注射-压缩成型模拟研究[J].航空材料学报,2011,31(3):76-80.
[6]李海涛,张苏娟,张炜,等.液体封装LED汽车远光灯光学设计[J].光子学报,2012,41(11):1327-1330.
[7]谢春稳,王克俭.变厚度透镜注射压缩成型的三维数值模拟[J].高分子材料科学与工程,2013,29(9):169-174.
[8]周阳. LED透镜注射压缩成型工艺优化与实验研究[D].江门:五邑大学,2016.
[9]朱俊杰.注射压缩成型的CAE三维模拟分析[J].塑料,2014,43(3):4-6.
[10]陈新欣,杜遥雪,孙锐,等.非球面透镜注射压缩成型工艺优化与透光率分析[J].塑料,2017,46(3):96-98.
[11]陈宇宏,袁渊,刘小艳,等.注射成型和注射压缩成型透明件的光学性能对比与分析[J].航空材料学报,2011,31(2):55-60.
[12]张娜,吴大鸣,郑秀婷,等.导光板的注射压缩模拟及实验[J].塑料,2013,42(6):88-89.
[13]蒋丰泽,刘义伦,陈磊,等.工艺参数对注射压缩成型微透镜阵列基板双折射率的影响[J].中南大学学报:自然科学版,2014,45(8):2610-2616.
[14]陈俊云,赵近川.全内反射透镜注射压缩成型过程仿真及工艺优化[J].塑料工业,2013,41(8):49-53.
[15]五邑大学. LED射灯非球面透镜异腔注射压缩热流道模具:中国,CN205364440U[P]. 2016-07-06.
[2]杜遥雪,周阳,殷小春,等. LED非球面透镜注射压缩成型工艺稳健性优化分析[J].中国塑料,2016,30(3):78-83.
[3]王乐. LED应用于照明的计算和仿真[J].照明工程学报,2007,18(1):25-30.
[4]陈宇宏,袁渊,周克斌,等.注射压缩成型和注射成型平板的光学性能对比研究[J].工程塑料应用,2010,38(9):25-28.
[5]李毅超,张宜生,李德群.透明塑料板件注射-压缩成型模拟研究[J].航空材料学报,2011,31(3):76-80.
[6]李海涛,张苏娟,张炜,等.液体封装LED汽车远光灯光学设计[J].光子学报,2012,41(11):1327-1330.
[7]谢春稳,王克俭.变厚度透镜注射压缩成型的三维数值模拟[J].高分子材料科学与工程,2013,29(9):169-174.
[8]周阳. LED透镜注射压缩成型工艺优化与实验研究[D].江门:五邑大学,2016.
[9]朱俊杰.注射压缩成型的CAE三维模拟分析[J].塑料,2014,43(3):4-6.
[10]陈新欣,杜遥雪,孙锐,等.非球面透镜注射压缩成型工艺优化与透光率分析[J].塑料,2017,46(3):96-98.
[11]陈宇宏,袁渊,刘小艳,等.注射成型和注射压缩成型透明件的光学性能对比与分析[J].航空材料学报,2011,31(2):55-60.
[12]张娜,吴大鸣,郑秀婷,等.导光板的注射压缩模拟及实验[J].塑料,2013,42(6):88-89.
[13]蒋丰泽,刘义伦,陈磊,等.工艺参数对注射压缩成型微透镜阵列基板双折射率的影响[J].中南大学学报:自然科学版,2014,45(8):2610-2616.
[14]陈俊云,赵近川.全内反射透镜注射压缩成型过程仿真及工艺优化[J].塑料工业,2013,41(8):49-53.
[15]五邑大学. LED射灯非球面透镜异腔注射压缩热流道模具:中国,CN205364440U[P]. 2016-07-06.