Technology Trends Although urban street lights can illuminate roads, they also bring a lot of light pollution and energy waste at the same time, but they have been criticized for a long time but there is no solution. However, according to reports, there is currently a group of researchers from Taiwan, China and Mexico who have developed a new type of lighting system. By using LEDs efficiently, the system can ensure that street lights only illuminate the places where light is needed, without generating any unnecessary Light.
“A unique feature of this new type of LED system is that it can adapt to the street lighting layout of different streets and provide efficient lighting for various streets and roads,†said Professor Sun Qingcheng, who is involved in the study in the Department of Optoelectronics and Engineering at Taiwan’s Central University in China. Say.
This new type of street light system consists of three parts. The first part consists of a series of light emitting diodes, each of which is equipped with a device called a total internal reflection lens (TIR). Its function is to collect light and precisely control the direction of the light beam so that the light rays can be emitted in parallel without mutuality. cross.
These lenses are mounted in a reflective cavity to recover light and ensure that they are used more to illuminate the target. This is the second part of the system. The third part is its outermost light filtering device, its role is to reduce the excess glare. With this unique structure, researchers can control the shape of the beam. The currently designed beam shape is rectangular, which is very suitable for road lighting.
Researchers use light utilization (OUF) to quantify the performance of streetlights. The higher the light utilization, the better the streetlight performance. Computer simulation results show that the light utilization rate of this new street lighting system can reach 51% to 81%, far exceeding the current 45% of ordinary street lamps. In addition, compared with traditional street lamps, this new type of street lamp has higher brightness, more energy-saving, and is less prone to glare and light pollution.
“A unique feature of this new type of LED system is that it can adapt to the street lighting layout of different streets and provide efficient lighting for various streets and roads,†said Professor Sun Qingcheng, who is involved in the study in the Department of Optoelectronics and Engineering at Taiwan’s Central University in China. Say.
This new type of street light system consists of three parts. The first part consists of a series of light emitting diodes, each of which is equipped with a device called a total internal reflection lens (TIR). Its function is to collect light and precisely control the direction of the light beam so that the light rays can be emitted in parallel without mutuality. cross.
These lenses are mounted in a reflective cavity to recover light and ensure that they are used more to illuminate the target. This is the second part of the system. The third part is its outermost light filtering device, its role is to reduce the excess glare. With this unique structure, researchers can control the shape of the beam. The currently designed beam shape is rectangular, which is very suitable for road lighting.
Researchers use light utilization (OUF) to quantify the performance of streetlights. The higher the light utilization, the better the streetlight performance. Computer simulation results show that the light utilization rate of this new street lighting system can reach 51% to 81%, far exceeding the current 45% of ordinary street lamps. In addition, compared with traditional street lamps, this new type of street lamp has higher brightness, more energy-saving, and is less prone to glare and light pollution.
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