The application of Led street light with special light shape design in the street lamp industry can shift the light angle of street lamps and improve the utilization of road lighting; according to the aspect ratio of the rectangle, it can produce a spot with an aspect ratio of 2:1. Make no shadows between adjacent light points and form light on the road surface. The uniform lighting band makes it more suitable for the lighting design of traffic roads. It can meet a wider lighting range without increasing the height of the light pole. Improve the lighting efficiency of street lights, reduce the power density of road lighting, and realize energy saving and environmental protection of high-power LED street lights. Compared with traditional high-pressure sodium lamps, road lighting has incomparable advantages:

JD-1072 surface anit-ageing electrostatic Led street light

1. The light emitting mechanism is different. Since LED street lamp is a semiconductor device, its effective life can reach 50,000 hours (that is, after 50,000 hours, the light loss is less than 30%), which is much higher than that of sodium lamp and metal halide lamp (its life is about 12,000 hours). -15000 hours).

2. Since LED street lamp is a kind of semiconductor material, without additional materials such as filament, it has good anti-seismic performance.

3. The color rendering index of the LED street light source can reach more than 80, which is close to natural light. In this case, it is easy for human eyes to distinguish things, which is conducive to driving safety; while the color rendering index of high-pressure sodium lamps is only 20-30.

4. Traditional gas discharge lamps, such as high-pressure sodium lamps, have a preheating process when they are started, which wastes energy and is not conducive to intelligent control. Due to the essential difference of the light source, there is no "start-up time" problem for LED street lights, and it can work normally immediately after power-on, and it is very convenient and systematic to realize intelligent energy-saving control.

5. Since the traditional street lamp light source uses mercury vapor mechanism to emit light, the disposal of waste light source is an urgent problem in the world. At the same time, the light-emitting mechanism of traditional light sources determines that it will produce harmful ultraviolet radiation to the human body. The LED street light source is solid-state lighting, does not contain harmful substances such as mercury, and does not emit ultraviolet radiation. It is an environmentally friendly light source.

6. In the optical system, the traditional street light source is omnidirectional light, half of the light is reflected by the reflector, and the reflector absorbs part of the light, so the light loss is relatively large. Because LED street lights are one-way light, the utilization rate of light is higher than that of traditional street lights. Chapter VII. The light distribution curve of traditional street lamps is determined by reflectors, so there are certain limitations. The LED street light source is a distributed light source. Through the design of various electric light sources, the light source can be made into an ideal batwing shape. By reasonably controlling the distribution of light spots, the road light spots can be made rectangular to achieve effective lighting standards. A high uniformity of illumination is obtained at the periphery.

7. Better automatic control (optional) 0X1778 can set different brightness according to the needs of different time periods to improve energy saving effect. If the brightness is 200W at 7:00 in the evening, and when there are fewer people at 12:00, the brightness can be automatically adjusted to 100W, which can save 60W of power. Currently, in TD Lighting designs, the spacing between luminaires is generally three times higher than the height of the luminaires, and the height of the luminaires is generally equal to the width of the road. According to the geometric triangle relationship, it can be calculated that the light distribution angle of the lamp in the C0/180 direction is about 140 degrees, and the light distribution angle in the C90/270 direction is about 80 degrees. In the past 100 years, light sources have gone through three important stages. Incandescent lamps 0X1775 fluorescent lamps 0X1775 high-intensity discharge lamps (HID) have broad prospects in the lighting industry and are now called the fourth-generation light source. As a new type of light source, LED street lights have long life, high luminous efficiency, high power consumption, short start-up time, short color rendering index, high working temperature, low structure, strong structure, good directionality, high working temperature, and high working voltage. low-level features. Low working voltage, 0X1775 has no ultraviolet radiation, 0X1775 is light in weight and other obvious features. In addition, LED street light sources can achieve mercury-free production, which is also of great significance to environmental protection. As a light source for solid-state lighting, semiconductor LED street lights will gradually replace traditional lighting and enter various application fields.