Design methodology for street lighting luminaires based on a photometrical analysis

In this paper, an optical design method to solve the problem of illuminance distribution for LED street lighting luminaires is proposed. With this method, it is possible to calculate the amount of luminous flux required for a LED lamp, optimizing the uniformity of illuminance and luminance with use of lenses, in order to ensure the current national lighting standards for street lighting. As an example, a 75 W LED street lighting luminaire is analyzed. Simulations are performed and experimental results are used to show the agreements with standards requirements.