LED Street Lamp Design Considerations
Apr 14, 2023| 1. The light decay of street lamps
The light attenuation of street lamps refers to the negative influence of the optical system and street lamp structure on the luminous flux of the light source, and the pollution of the optical system by dust and particles in the external environment constitutes the phenomenon of premature weakening of the illumination. In the process of street lamp planning, the material selection, shape, volume and sealing method of the reflector must take into account the problem of light decay.
2. Light source maintenance
In street lamp planning, it is necessary to ensure that the light source has a reliable electrical connection, the touch resistance is small, and it will not loosen after being shaken.
In order to maintain the light source and prolong the life of the light source, the internal structure of the street light must be scientific and reasonable. In order to enhance the heat dissipation capacity of the street lamp, the shape and size of the reflector should be made reasonably, and the volume of the street lamp can be appropriately expanded, and the heat dissipation area can be increased, so that the light source can work at a suitable temperature to ensure stable function and safety.
3. Heat radiation problems and heat energy use
In addition to reflecting visible light, the light source also has a lot of thermal radiation. Thermal radiation can make the temperature of the street lamp body too high, affect the service life of the light source, make the street lamp material prematurely aging, and even more dangerously may cause leakage, fire, etc. When planning street lights, try to choose heat-resistant materials and low-radiation light sources. When conditions do not allow, materials with poor thermal conductivity, such as asbestos, should be used to block the light source and luminaire materials and components that have poor heat resistance. Borrowing heat dissipation methods, such as heat sinks and reflectors, refract the heat radiation, and can also rely on electric fans to force air circulation to quickly dissipate the heat.
When the indoor lighting load is as high as 20-40W/m2, the use of heat energy becomes very important. At present, the research on air-conditioning street lamps is aimed at using a lot of heat radiation from the light source.
4. Street lamp planning should combine function and beauty
An important part of lighting street lamp planning is to select suitable street lamps according to functional requirements and environmental conditions, and to reconcile the lighting functions and decorative functions. Street lamp is a functional product, as well as a rich information carrier and cultural shape. It is a comprehensive manifestation of people's aesthetic taste, technological level, and functional needs in the corresponding historical period. Street lamp planning should be combined in many aspects such as function, material selection, shape, color, and craftsmanship. Coordinating. Street lamp planning should also consider the overall connection between street lamps and the relevant space environment. Not only the lighting, the aesthetics of the street lamps are also inseparable from the environment where they are located, and can be integrated with the environment.
5. Integrated planning of street lights
In recent years, new planning concepts and planning methods have continued to emerge. The interface shapes of furniture, furnishings, street lamps and even spaces are no longer independent decorative elements, but are often combined into one by various methods, that is, they are used. The decorative effect of the decoration also expands the indoor space.