低位路灯眩光问题研究

Elimination of disability glare of luminaires is a common and so a difficult technical problems in road lighting field. However, The theory and technology of the glare based on the famous light-curtain principle have no substantive progress in the recent 20 years. The glare of the fixed Low Mounting Height Luminaires（LMHL）due to the special natures, becomes a key technology- bottleneck problem in it’s applications. The basic principle of physiology, psychology are used to study of the glare of fixed LMHL in this research project, and a new glare theory－the interference theory for the glare and a new glare standard based on the theory are presented, through the argument of the dynamic process of the human pupil under the condition of glare stimulation, the dynamic process of the driver visual focus on among the car’s taillights, road pavement and glare of the fixed LMHL under the condition of multiple objective and the dynamic process of the driver visual focus on between frontward and backward under the condition of more light conditions. Therefore a source theoretical innovation of glare of LMHL is realized because of the interference theory. By which, a significant amendment and remark for the main photometry indicators and glare testing standards at existing road lighting design specifications are put forward, and a new way for road lighting energy saving and the glare control of the fixed LMHL are provided.. A new fixed LMHL is also developed based on the Composite light distribution technology during this research project, by which the glare of fixed LMHL is reduced to an unprecedented lower level, and conduce to turning the technical potential of fixed LMHL into tremendous technological advantage.

消除路灯眩光是道路照明领域共性技术难题，然而基于光幕学说的路灯眩光理论与技术近二十年来并无实质性进展。低位路灯眩光由于其特有性质，更成为实际应用的关键性技术瓶颈。本项目在低位路灯眩光研究中应用生理学、心理学基本原理，通过论证眩光刺激下人眼瞳孔的动态变化过程、多目标条件下驾驶员视觉焦点在车灯与路灯光源之间的动态转换过程和多光源汇聚条件下驾驶员后视与前视动态变换过程，提出低位路灯眩光的干扰理论和基于该理论的眩光标准，在源头实现对现有路灯眩光的理论创新。在此基础上，对现有道路照明设计规范中的主要光度学指标与眩光检测标准进行重大修正，为低位道路照明节能及眩光控制辟出一条新的途径。. 本研究项目同时开发出基于复合配光技术的LED低位路灯，将低位路灯的眩光降低到前所未有的低水平，有助于将低位路灯的技术潜力转变为巨大的技术优势。

本项目研发的新型照明系统（低位照明）基于LED自身发光规律，在理论上以驾驶员视觉需求为导向，以复合配光方法解决眩光控制关键技术问题，以多维度照明解决极端天气条件下的安全照明问题，以前瞻化的自适应系统解决智能化照明共性问题，为低位道路照明提供理论指导和全面解决方案，同时开发出LED低位路灯，将低位路灯的眩光降到前所未有的低水平。. 在成果形式方面，项目负责人出版专著一部《道路照明：多维度理论与技术》；项目组在国内外期刊、会议发表论文 6 篇；国内申请专利4项，授权专利 5 项，PCT 专利 5 项；共培养研究生 6 名，其中 6 名已毕业并获得硕士学位。. 多维道路照明系统基本克服了传统高灯位照明方式和已有的低灯位照明方式存在的弊端，在解决眩光、无效照明和纵向均匀度差等问题、显著提高照明效率、大幅度降低能耗的同时具有良好的路面亮度、纵向均匀度和诱导性，并且不存在“频闪”问题。