Computer Modelling And Experimental Research of Led Optical Systems

Issue 03-2021 Pub Date : 2021-06-01 DOI:10.33383/2021-022
I. Bayneva, V. Baynev
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引用次数: 1

Abstract

The paper considers the problem of design of modern light devices (LDs) based on LEDs and their optical systems (OSs). LEDs optical systems provide developers with opportunities to implement a variety of modern lighting tasks. In the market of competing products, it is often necessary to calculate and produce LED optics for specific lighting problems. The main one is the formation of a given distribution of illumination over the surface of the object. In comparison with existing lens and reflective OSs, individual projects with their own developed elements can give the desired result. The most popular services in LED lighting are the development of LED optics according to the customer’s specifications, lighting of the simulated product, development of 3D models for further production. The main stage in its development is the calculation and modelling of the OS. The results of this process are largely determined by the complex of lighting, thermal and functional characteristics of LDs. The development of modern LED LDs is inextricably linked with the use of specialized software. The article describes a mathematical model of the geometry of an OS that allows researcher to specify its shape for further design and provides a fast and accurate lighting calculation. To model objects, triangulation grids are often used, which makes it possible to fine tune their shape. To simplify the process of forming smoothed 3D surfaces, an edge was introduced as an auxiliary element of a triangulation grid. It makes it possible to simplify the process of approximating smooth surfaces without increasing the density of this grid. The developed software allows you to build optical surface models, perform ray tracing and calculate photometric body (PB). The article describes the simulation of LED OSs by the example of secondary LED optics. Computer simulation and prototyping of LED modules (LEDMs) for road lighting was carried out. 3D-models, a PB and curves of luminous intensity of LEDMs are received. The thermal imager an experimental study of the luminous and thermal characteristics of these modules was carried out. The results of the experiment showed very good agreement with the calculated models.
Led光学系统的计算机建模与实验研究
本文研究了基于led及其光学系统的现代光器件的设计问题。led光学系统为开发人员提供了实现各种现代照明任务的机会。在竞争产品的市场中,经常需要针对特定的照明问题计算和生产LED光学器件。主要的是在物体表面形成一个给定的光照分布。与现有的透镜和反射操作系统相比,具有自己开发元素的单个项目可以获得理想的结果。在LED照明中,最受欢迎的服务是根据客户的规格开发LED光学器件,照明模拟产品,开发3D模型以进一步生产。其开发的主要阶段是操作系统的计算和建模。这一过程的结果在很大程度上取决于led的照明、热和功能特性的复杂性。现代LED的发展与专业软件的使用密不可分。本文描述了操作系统几何的数学模型,允许研究人员为进一步设计指定其形状,并提供快速准确的照明计算。为了对物体建模,经常使用三角网格,这使得微调它们的形状成为可能。为了简化形成光滑三维曲面的过程,引入了边缘作为三角网格的辅助元素。这使得在不增加网格密度的情况下简化近似光滑表面的过程成为可能。开发的软件允许您建立光学表面模型,执行光线跟踪和计算光度体(PB)。本文以二次LED光学为例,介绍了LED光学系统的仿真。对道路照明用LED模块(LEDMs)进行了计算机仿真和原型设计。得到了发光二极管的三维模型、发光强度曲线和PB。利用热像仪对这些模块的发光和热特性进行了实验研究。实验结果与计算模型吻合较好。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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