Chang Hui: How to ensure the uniformity of solar street lighting?

In road lighting design, the light distance of solar street lights is generally 3 times of the light height, and the light height is generally equal to the road width of the road. According to the geometric relationship, the light distribution angle of the lighting fixtures can be calculated in the direction of 0 degrees to 180 degrees about 140 degrees. About 80 degrees in the direction of 90 degrees to 270 degrees. In order to improve the utilization rate of street lamps in road lighting, the luminous center of the light source is inclined to a certain angle in the direction of the road. The ideal situation is that the center of light intensity falls on the center line of the road. Considering that the solar street light source itself will have an elevation angle of about 10 degrees from the horizontal direction, according to the geometric relationship, it can be calculated that the center of the luminous intensity of the LED light source should be offset by 15 degrees to 20 degrees in the direction of the road. The lens is assembled on the LED bracket, and the high-power LED chip is fixed on the bracket. The surface of the lens can be coated with an anti-reflection film, and the cavity between the lens and the chip is potted with high-temperature resistant silica gel to reduce the multiple reflections of light in the cavity and directly refracted through the lens. Compared with the conventional LED lens, the lens plays the role of polarizing and antireflection, which is equivalent to the integration of the secondary optical lens and the primary lens. Because high-power LED light sources are equipped with reflectors, and the efficiency of such reflectors is significantly higher than that of lamp reflectors. In addition, the efficiency of the self-reflector has been included in the light efficiency detection of the LED light source. In this way, the installation position of the LED light source and the direction of the emitted light can achieve a good secondary light distribution function and ensure better uniformity of road lighting. The company : Shanghai CHZ Changhui Lighting Technology Co., Ltd. Website: www.chz-lighting.com