LED and the traditional lighting is different, it has a point light source, high brightness, narrow beam output and other characteristics. Therefore, the new LED lighting designers will put forward higher requirements. Do LED street lamps should first consider the limited luminous flux to fully utilize the effective irradiation range. Street light requirements are road lighting effect, beyond the road surface is not the way of street lighting. LED Street Light
Therefore, effective control of the range of light distribution, the light emitted by the light-emitting tube becomes a strip-shaped strip of light spreading along the road, while also taking into account the glare produced, the light intensity of the luminaire in the direction of the 80° and 90° heights shall not exceed 30cd/1000lm and 10cd/, respectively, at the azimuth angle of the driver's view. 1000LM, and regardless of the light flux size, its 90° angle in the direction of the maximum intensity of light is not super 1000CD. Therefore, if the light angle is not strictly controlled will produce a strong glare, some high-brightness LED products will even cause a certain amount of radiation harm to the human body. LED Street Light
Street lighting is a systems engineering, to do a good job of semiconductor street lamps must first understand the standards and requirements of road lighting and the principle of conventional lighting light distribution, spherical surface light reflector and point light source of the reasonable distribution of the difference between the pros and cons of complementary, give full play to the LED point light beam angle of the controllable advantages and cold light source long life advantage. LED Street Light
Semiconductor LED light source structure and optical characteristics have their own characteristics, therefore, the semiconductor lamps should be designed according to these characteristics of lamps, today some manufacturers use the traditional lamp shell to change the wick of a semiconductor, with the transition conduction mode of heat dissipation is not a good lamp. The problem is that the external shape of the lamp body should be combined with the heat dissipation of the light-emitting tube, and the heat dissipation is the area, the surface area of the existing conventional illumination lamp is far from enough "jiao joule law" is to have good natural air convection environment. LED Street Light
The working temperature of LED products should be controlled under 65 ℃ (International standard is 80 ℃, when the working temperature of the LED reaches 85 ℃, the luminous flux will decrease by half; the wavelength becomes longer, i.e. red shift, and more than 90 ℃ is the risk of burning down). The installation of luminous tube, scientific and reasonable optical distribution, and the sealing of light body are very important. At the same time, the design of the light body structure is also conducive to high-volume industrial production. LED Street Light
