Jining light,

LED used in road lighting device is involved in material development, the optical structure design, packaging materials, drive circuit, development of lamps and lanterns, lighting and visual matching, multidisciplinary cross high technology fields such as test method. As LED production technology mature,

leds in the application of road lighting is a high-tech field, relates to the development of material and devices, optical structure design, packaging materials, drive circuit, development of lamps and lanterns, lighting and visual matching, detection methods, and other areas of the multi-disciplinary cross. With the light-emitting diode production technology mature, compared with the traditional light source, light emitting diode has a long service life, good color rendering, high luminous efficiency, luminous intensity and close to the point light source, which determine the light-emitting diodes (leds) has the potential to enter the field of road lighting. In order to better promote the white light leds in the application of road lighting, it is necessary from the theoretical height and depth of practice for the second time optical design, thermal management, driving power and comprehensive study on the key technology and comprehensive balance, to fully embody the advantage of energy saving, the led street lamp is widely used. Compared with the application of indoor LED lighting products, solar LED street light is much more complex. Design scheme of solar led streetlight applications including lighting requirements, determine the design goal, estimates - light Electric - Heat integrated features, calculate the number of leds, choose the best design scheme, and other aspects. Among them, the solar led street lamp system of light - Electric - Thermal characteristics of design and research is the focus of scientific research institutions and enterprises at home and abroad. In terms of the secondary light distribution, based on the edge of the optical principle and the law of conservation of light spread of mapping method of separation of variables, solving the free surface of solar led street lamp light distribution structure parameters. In terms of heat dissipation, using microarray or heat pipe system, cooling system by numerical simulation method to calculate the temperature of the different types of solar led street lamp power field, and get the best working temperature of street lamp system. In terms of driver, the present invention light - light emitting diode (led) Electric - Heat integration theory as the instruction, broke through the traditional active drive circuit system, the design principle of the novel passive light emitting diode drive circuit system attempts to pioneering in the field of street lamp lighting applications, make the circuit system has the characteristics of long service life, more environmental protection. In terms of detection, through the transient thermal response characteristics and the structure function theory to analyze the thermal resistance of each material - in the system The heat capacity properties. Although now for solar led street lamp system carried out some research work, but how to overall consideration of solar led street lamp system of light distribution effect, thermal and electrical properties, light, heat and electric properties of coordination and optimization, the best is still need to do a lot of research and analysis.