* i$ y9 x8 Q$ j9 o( hFor the evaluation of the optical radiation hazards IEC/EN 62471 shall be applied.. C3 O4 U2 ] n- |# O0 \
Awaiting the future modifications of product standards (lamps, luminaires and others), all the# d1 |: B5 b+ d& r. t! E [6 N$ O
requirements, including marking, provided by IEC TR 62471-2 shall be applied. : o/ V J( u, F& F2 ]) I0 A: e- For LEDs with low luminance (< 10^4 cd/m^2) emitting only in the visible range there is no need of( f/ u" Q6 t4 v1 @7 `/ z8 l! G, U
hazards risk classification according to IEC/EN 62471 (see clause 4.1).! b0 ^7 E& r; h7 U9 s1 {
- It’s up to the Certification Body to accept the luminaire manufacturer declaration based on relevant! k' K* S3 s3 o0 v& y
tests showing that the radiation from the luminaire does not exceed the values given in IEC/EN G" o6 P) ?' n0 z c) X
62471 for Exempt Group and Risk Group 1. In the TRF, it is indicated that judgement is based on 9 w( h( `6 Q% L# U S" e! v7 G: I+ Qmanufacturer’s declaration. If such a declaration is not provided, the measurements given in . o/ ~3 N. T3 v; A; X8 D- kIEC/EN 62471 shall be performed.# t, X! b: P5 u/ S. A: l
谁光学好一点的,帮忙理解一下上面这段话。; L6 e' V4 \* X5 d* U9 b
亮度低于10^4cd/m^2不需要根据62471危险分类。这个亮度怎么去理解,距离光源远近不同,亮度肯定不同,它只是笼统的说亮度低于10^4cd/m^2,没有任何前提条件,到底是距离光源1米范围内,还是距离光源0.5米范围内,还是其他范围内,没作任何说明。对了,灯具有个照射距离标,会不会一般按照0.5m来定呢?照射距离标也有标0.1的,或许根据不同的标法有不同的规定,比如标0.3m,那么此条CTL决议就理解为0.3m处亮度小于10^4cd/m^2不用考虑62471. 2 }- p$ i2 A1 X5 `3 i6 `6 a: X' O2 D* u* U 作者: 山炮 时间: 2013-6-18 20:24
照度、亮度、发光强度、光通量,有时比较混乱。作者: jsspace 时间: 2013-6-18 21:40
不董光学,但纠正一下,是光强低于10000的可见光不用测试,很多光源还是包含一些不可见光,如蓝光,紫外等作者: jsspace 时间: 2013-6-19 08:14 本帖最后由 jsspace 于 2013-6-19 08:15 编辑 S* ~4 G! {9 ^) u% i/ J