What kind of the main solar street light is helpful to check the road lighting too

In recent years, the LED as high efficiency, low consumption of new light source development is very rapid. Especially in the new farming village redevelopment in traffic signal lights solar street light is to get the broad masses of farmers and herdsmen. How to design a reasonable light distribution, high luminous efficiency, brightness and with

in recent years, the light-emitting diodes (leds) as a highly efficient low consumption of new light source has developed rapidly. Especially the agriculture heart traffic lights village renovation in solar street light was welcomed by the farmers and herdsmen. How to design a kind of comfortable and beautiful, reasonable light distribution, high luminous efficiency, brightness and uniformity suitable road lighting is of concern to the led industry. According to the regulation of city road lighting design standards, measure the solar street light road lighting quality of main parameters are: the average road brightness Lav ( Or average road illumination Eav) , the total road brightness uniformity U0 ( Or the total road illumination uniformity E0) And threshold value increment TI, etc. The average brightness Lav = 1 / n ∑ Li the Lav - — The road average luminance ( cd/m2) 。 n - The number of measurement point; Li— In the case of a measurement point I measured brightness values. Road of the actual average brightness Lav need to use special imaging luminance meter to measure. 2. Road surface brightness longitudinal uniformity of UL = minimum/maximum to compare each lane UL value, minimum value is the longitudinal uniformity of the surface brightness. 3. Method of center point the average illuminance eav for 1 / mn ∑ ei, eav - — The average illuminance ( lx) 。 M— Sections along the vertical division of the grid number; N— Along the road horizontal partitioning grid number; Ei— In the first measurement point measurement of illuminance value ( lx) 。 In addition, there are visual comfort evaluation index, including the surface brightness of longitudinal uniformity of UL, glare, etc. Other indicators include environmental ratio of SR, visual sense, lighting power density, etc.