本文選題：光學(xué)設(shè)計　切入點：自由曲面　出處：《激光與光電子學(xué)進(jìn)展》2017年05期 　論文類型：期刊論文

【摘要】：提出一種設(shè)計自由曲面輪廓的方法以實現(xiàn)目標(biāo)面特定區(qū)域照度均勻性為常數(shù)的目標(biāo),該方法可應(yīng)用于漫反射曲面間接照明系統(tǒng)。基于理想漫反射曲面和發(fā)光二極管朗伯特性,推導(dǎo)了目標(biāo)面照度分布函數(shù)的方程組。求解方程組得到曲面面型數(shù)據(jù),繞軸旋轉(zhuǎn)得到漫反射自由曲面。根據(jù)目標(biāo)面照明情況建立評價函數(shù)用于優(yōu)化求解陣列間距。對系統(tǒng)用TracePro軟件進(jìn)行非序列光線追跡仿真,仿真結(jié)果表明漫反射自由曲面間接照明目標(biāo)面大小為50mm圓形區(qū)域,照明距離為200mm,均勻度達(dá)到91.5%,效率為6.73%。對比間距優(yōu)化的線性陣列、環(huán)形陣列和矩形陣列下的漫反射自由曲面間接照明與直射照明,漫反射間接照明照度均勻性更高。仿真結(jié)果驗證了方案的正確性和有效性。
[Abstract]:In this paper, a method of designing free-form surface contours is proposed to achieve the objective of constant illumination uniformity in a specific area of the target surface. The method can be applied to the indirect illumination system of diffuse reflection surface. Based on the ideal diffuse surface and Lambert characteristic of light-emitting diode (LED), a new method is proposed. The equations of the illumination distribution function of the target surface are derived, and the surface data are obtained by solving the equations. The diffuse reflection free-form surface is obtained by rotating around the axis. According to the illumination of the target surface, an evaluation function is established to optimize the array spacing. The system is simulated with TracePro software for non-sequential ray tracing. The simulation results show that the target surface size is 50mm circular area, the illumination distance is 200mm, the uniformity is 91.5, the efficiency is 6.73.Contrasting the linear array with optimized spacing, the simulation results show that the target surface is 50 mm circular, the illumination distance is 200 mm, the uniformity is 91.5 mm and the efficiency is 6.73. The diffuse surface indirect illumination and direct illumination under circular and rectangular arrays are more uniform. The simulation results show that the scheme is correct and effective.
【作者單位】： 華東交通大學(xué)電氣與自動化工程學(xué)院;
【基金】：國家自然科學(xué)基金(51305137) 江西省科技支撐計劃項目(20151BBE50116) 江西省杰出青年資助計劃(20162BCB23047) 江西省發(fā)明專利產(chǎn)業(yè)化重點項目(20161BBM26037)
【分類號】：TN312.8

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