用于LED光源的反光杯准直效果研究Study on the Effect of Reflector for LED
王海洋;金志樑;王沛沛;熊大曦;
WANG Haiyang;JIN Zhiliang;WANG Peipei;XIONG Daxi;Suzhou Institute of Biomedical Engineering and Technology,China Academy of Sciences;
摘要(Abstract):
为研究抛物面型反光杯用于LED光源准直时的特点,基于TracePro仿真了LED光源在不同尺寸反光杯下的有效射程和光斑直径,分析了反光杯和LED尺寸对射程和光斑直径的影响。仿真结果表明:射程与反光杯的口径和深度都有关系。高度相同时,反光杯口径越大,射程越大;口径相同时,射程随反光杯高度增加先增大后减小。LED光源经反光杯准直,较短距离的光斑中心光强很低,形成光环。LED光源面积直接影响目标面光斑的大小,对射程影响较小。
In order to study the characteristics of reflector for LED,the effective range and beam diameter are simulated based on TracePro.The study found that the range is related to the diameter and depth of the reflector.The larger the diameter of the reflector is,the greater the range is,so as the height factor.However,when the diameter is the same,the range increases with the increase of the height of the reflector,and then decreases.Besides,the light intensity of the spot center in a short distance is very low.The size of the LED directly affects the spot size of the target surface,and it has little effect on the range.
关键词(KeyWords):
LED;反光杯;仿真
LED;reflector;simulation
基金项目(Foundation):
作者(Authors):
王海洋;金志樑;王沛沛;熊大曦;
WANG Haiyang;JIN Zhiliang;WANG Peipei;XIONG Daxi;Suzhou Institute of Biomedical Engineering and Technology,China Academy of Sciences;
参考文献(References):
- [1]Cheng Y K,Cheng K W E.General study for using LED to replace traditional lighting devices[C]//Proc.Second International Conf.on Power Electronics System and Applications.2006.
- [2]Wang L,Qian K,Luo Y.Discontinuous free-form lens design for prescribed irradiance[J].Appl.Optics,2008,46:3716-3723.
- [3]叶荣南.LED路灯用于城市道路照明的探讨[J].照明工程学报,2009,20(增刊):83-91.
- [4]Hu S,Du K,Mei T.Ultra-compact LED lens with double freeform surfaces for uniform illumination[J].Opt Express,2015,23(16):20350-20355.
- [5]Cui Fuqing,He Yaling,Tao Yubing,et al.A new type linear fresnel lens design and concentrating characteristic analysis[J].Journal of engineering thermo physics,2010,31(5):733-736.
- [6]Huang M S,Nian S C,Chen Y C.Optical design of the Fresnel lens for LED-driven flashlight[J].Applied Optics,2016,55(4):712-721.
- [7]Lou Zhibin,Zhang Jianhua,Zhou Bo.Based on microlens array multi chip LED illuminations simulation[J].Appl Laser,2012,32(3):228-230.
- [8]Mehr M,Driel W,Koh S,et al.Reliability and optical properties of LED lens plates under high temperature stress[J].Optical Materials,2014,54(11):2440-2447.
- [9]Parkyn W,Pelka D.New TIR lens applications for light-emitting diodes[J].Proc.of SPIE,1997,3139:135-140.
- [10]Hwang J,Shin D,Gong D,et al.Enhancement of brightness and uniformity by LED backlight using a total internal reflection(TIR)lens[J].Sid International Symposium Digest of Technical Papers,2012,39:1645-1647.
- [11]Parkyn B,Falicoff W,Carlos J,et al.Off-axis TIR lens for conformal luminaires[J].SPIE Proceedings,2003,5186:56-60.
- [12]Chen C,Zhang X.Design of optical system for collimating the light of an LED uniformly[J].JOSAA,2014,31:1118-25.
- [13]苏宙平.非成像光学系统设计方法与实例[M].北京:机械工业出版社,2017.
- [14]Markvart T.The thermodynamics of optical etendue[J].Journal of Optics A Pure&Applied Optics,2008,10(1):015008.
- 王海洋
- 金志樑
- 王沛沛
- 熊大曦
WANG Haiyang- JIN Zhiliang
- WANG Peipei
- XIONG Daxi
- Suzhou Institute of Biomedical Engineering and Technology
- China Academy of Sciences
- 王海洋
- 金志樑
- 王沛沛
- 熊大曦
WANG Haiyang- JIN Zhiliang
- WANG Peipei
- XIONG Daxi
- Suzhou Institute of Biomedical Engineering and Technology
- China Academy of Sciences