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Q: We need 120 pcs. of LED street lights with wide angle of illumination. They should be fixed in one line, standard distance between each followin lamp to be 36 meters. Being fixed 8 meters high they should provide minimal illumination of 6 lumen on the ground level line in 9.5 meters from the lamp line.
2 D/ a8 A* `: }* i) C8 s* r1 S Can you offer us a solution?谁帮我瞅瞅这个，没明白" n& t, d' k9 g" ^( x j$ A
A:路灯高度8米，每两个间隔36米，距离灯杆9.5米处 能达到6流明的光效吧!数量120pcs 灯与灯距36m, 灯头到地面距离8m,
1 `. R9 E, g/ p. g! U3 }Q:距离灯杆9.5米处 能达到6流明的光效吧？这个是什么情况
( x2 J) t! R, k# FA:应该是测试的时候最远的亮度。灯杆为圆心 ，距离灯杆9.5米， 还有6流明的光亮度。按道理越远亮度越低
9 F! z9 A U8 c( `: D: Y3 V4 NQ: 这话啥意思？Being fixed 8 meters high they should provide minimal illumination of 6 lumen on the ground level line in 9.5 meters from the lamp line.
1 `: f/ C) q: P$ g1 WA:8米高度的灯杆, 在距离灯杆9米的地方最小照度是6LM。6 lumen应该是照度，6lx" x' J+ @$ ], M3 Q6 A' F7 t$ T
一般情况下，钠灯的话，9米杆子 杆子底部的照度都在100以上，接近200，所以这个6其实很小了，应该确定就是距离灯杆9米远的地方9 h4 y" m; l8 q( e
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发表于 2016-3-14 13:52:40
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