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Design of asymmetrical total internal reflection optics with microstructures for lighting museum exhibits

机译：具有照明博物馆展品的微结构非对称全内反射光学器件的设计

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摘要

A high-quality museum lighting system should demonstrate optimal color rendering and high light source efficiency. In addition, an adequate lighting management system is required for energy saving and visual comfort. However, symmetrical total internal reflection (TIR) lenses typically applied in lighting fixtures are inadequate for providing a comfortable lighting experience for museum visitors. This paper presents a new optical lens that forms a novel asymmetrical triangular light distribution for improving the vertical illuminance uniformity of museum exhibits. Moreover, the proposed lens can reduce the reflective glare caused by the glass covering exhibits. Monte Carlo ray tracing simulation techniques were used to develop various lens structures and numerous microstructures, which enabled changing the light distribution from a traditional symmetrical to an asymmetrical triangle. Finally, an asymmetrical TIR lens with a microstructure surface was constructed and applied to exhibit lighting. According to the ray tracing results obtained using Tracepro simulation software and DIALux lighting design software, the asymmetrical lens formed an asymmetrical triangular light distribution with an LED light source and enhanced the illuminance uniformity by 29 %, improving the light quality of museum exhibits. The preliminary simulation results revealed that the proposed lens structure effectively improved the LED lighting quality in the museum.
机译：高质量的博物馆照明系统应表现出最佳的显色性和高光源效率。此外，还需要适当的照明管理系统以节省能源和视觉舒适度。但是，通常用于照明设备的对称全内反射（TIR）透镜不足以为博物馆游客提供舒适的照明体验。本文提出了一种新型光学透镜，可形成新颖的不对称三角光分布，以改善博物馆展品的垂直照度均匀性。而且，提出的透镜可以减少由玻璃覆盖物展品引起的反射眩光。蒙特卡洛光线追踪模拟技术用于开发各种透镜结构和许多微结构，从而可以将光分布从传统的对称三角形更改为非对称三角形。最终，构造了具有微结构表面的不对称TIR透镜，并将其应用于照明。根据使用Tracepro仿真软件和DIALux照明设计软件获得的光线跟踪结果，不对称透镜与LED光源形成不对称三角光分布，并提高了29％的照度均匀度，从而改善了博物馆展品的照明质量。初步的仿真结果表明，所提出的透镜结构有效地改善了博物馆的LED照明质量。

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  • 来源
    《Optical and quantum electronics》 |2016年第4期|236.1-236.11|共11页
  • 作者

    Ke-Fang Hsu; Chih-Wei Lin; Mei-Wen Chen; Jung-Min Hwang; Li-Ling Lee;

  • 作者单位

    Advanced Lighting Technology Department, Green Energy and Environment Research Laboratories, Industrial Technology Research Institute (ITRI), Rm. 401, Bldg. 64, 4F, 195, Sec. 4, Chung Hsing Rd., Chutung, Hsinchu 31040, Taiwan;

    Advanced Lighting Technology Department, Green Energy and Environment Research Laboratories, Industrial Technology Research Institute (ITRI), Rm. 401, Bldg. 64, 4F, 195, Sec. 4, Chung Hsing Rd., Chutung, Hsinchu 31040, Taiwan;

    Advanced Lighting Technology Department, Green Energy and Environment Research Laboratories, Industrial Technology Research Institute (ITRI), Rm. 401, Bldg. 64, 4F, 195, Sec. 4, Chung Hsing Rd., Chutung, Hsinchu 31040, Taiwan;

    Advanced Lighting Technology Department, Green Energy and Environment Research Laboratories, Industrial Technology Research Institute (ITRI), Rm. 401, Bldg. 64, 4F, 195, Sec. 4, Chung Hsing Rd., Chutung, Hsinchu 31040, Taiwan;

    Advanced Lighting Technology Department, Green Energy and Environment Research Laboratories, Industrial Technology Research Institute (ITRI), Rm. 401, Bldg. 64, 4F, 195, Sec. 4, Chung Hsing Rd., Chutung, Hsinchu 31040, Taiwan;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Asymmetrical TIR lens; Microstructure; Museum lighting; Illuminance uniformity;

    机译：非对称TIR透镜;微观结构博物馆照明;照度均匀度;

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