基于LED的高开间灯具设计技巧

　　基于LED的高开间灯具设计技巧

　　虽然住宅照明的固态照明成为头条新闻，商业和工业高湾照明应用程序独特的优势，利用LED的好处。高湾照明由天花板安装的灯具设计，用来照亮离灯具15至25英尺的表面。使用高湾照明环境远远超出了仓库和工厂车间到包括公共场所，如机场大厅、体育场馆和杂货店。通常，设备每天运行24小时，因此，无论是在运营成本还是减少停机时间方面，LED都可以节省大量开支。为了开发利用这些特性的灯具，照明设计者不仅需要选择合适的发射器，他们还必须采取系统级的方法来解决LED驱动的挑战，比如驱动程序设计和热管理。

　　¹DesignLights联盟建立了以下规格为非住宅固定装置。

　　Table 1： Lighting specifications for non-residential fixtures.

　　Design challenges

　　High-bay lighting presents a number of challenges to designers. The high output lumen specification requires large arrays of LEDs， which can generate a significant amount of heat. Driver topologies must be able to handle hundreds of devices while remaining lightweight， economical， and as efficient as possible. Located up against the ceiling， often near HVAC ducting， fixtures can be subjected to higher than normal ambient temperatures with very little room for convective cooling to take place. In addition， many facilities have very specific requirements for light distribution， which can necessitate beam-shaping components.