Education lighting, optical - ahead China lighting network

First of all let us know about the education class blackboard lamp's standards and requirements. Basic requirements 1, according to the national standard requirement, students look at the blackboard perspective is low, the blackboard lighting should not produce reflected glare to the students and direct glare. 2, the teacher write on the blackboard, or for students, can't suffer the blackboard lamp direct glare. Installation requirements 1, the classroom blackboard lamp layout diagram. The blackboard center horizontal line of OA and the center and light attachment OB form near the elevation Angle is 55 °, vertical illuminance value is highest. At the same time, the position of the Angle also conforms to the blackboard lamp should outside the teachers level above the line of sight Angle 45 °. 2, the classroom blackboard lamp layout diagram and the blackboard lamp installation position reference table as shown in the figure below. Intensity of illumination and intensity of illumination uniformity requirements in accordance with GB/T 5700 - illumination measurement requirements 2008 lighting measurement method on illumination measurement requirements, the center location method is adopted. Conventional blackboard lamp bidding basic size 4000 mm * 1295 mm or more parameters, can be adjusted according to the match machine, ensure the effective matching with all-in-one. Heng kun photoelectric | HercuLux called blackboard lamp solutions introduced bar bar advantages for its light bead is free to switch, can use the light source, such as the 3030, 2835, due to its for one dimensional light distribution, light color uniformity is better, not easy to appear the obvious yellow and so on. Strip light distribution plan a strip light distribution ErChan a scheme introduced single star advantages for transverse controlled light, beyond the blackboard may be part of the light cut, higher utilization rate of the blackboard. Drawback for the use of light source, such as 3030 or 2835 is extremely prone to yellow, macular, etc. , can only choose weak yellow 3535 light source, and because of the lamps and lanterns into single discontinuity, glare will be bigger. Plan to conclude the practical application reference standard case YanZhiXiang

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