DSH 656 Equivalent measurement setup for the Condition 1 for certain laser beams

小米

广东安规检测
有限公司提供：

小型摆管淋雨试验机

IPX5X6X7喷水试验机

1000L恒温恒湿箱

各种试验指现货

可程式恒温恒湿试验箱

水平垂直燃烧机

自动卷线器试验机

耐划痕试验机

各种灯头量规现货

灼热丝试验机现货

GB1002插头量规

IPX1-X7淋雨现货

IEC61347/UL935镇流器热试验箱

灯具防风罩

IK冲击试验机

UL498插头插座量规

VDE0620插头插座量规

稳定性试验台

家电温升测试角

针焰试验机现货

热电偶焊机现货

家电125mm试验指

E12灯头量规

无绳壶无绳电熨斗插拔寿命试验机

IEC60335试验指甲

DSH 656   K3 W% K7 f/ {3 i0 L' q1 z  Z/ E

Equivalent measurement setup for the Condition 1 for certain laser beams 4 \3 T9 \" v- i

Clause 9.1 Tests Clause 9.2 Measurement of laser radiation Clause 9.3 Measurement geometry

60825-1(ed.1);am1;am2 & 60825-1(ed.2)

/ `* V/ C1 U% I* ~- E( H9 \Standard(s):
IEC 60825-1, Ed 1.2 (2001) & Ed 2.0 (2007)
7 j* z3 T% w) _3 x% P& m, K% r3 F; |6 tSub clause(s):
Clause 9.1 Tests
Clause 9.2 Measurement of laser radiation
6 c8 U# y8 j# e* c. PClause 9.3 Measurement geometry
Decision Sheet n°: DSH 656
Subject: Equivalent measurement setup for the Condition 1 for certain laser beams
Key words:
- Condition 1
0 K+ G' k" o+ n- U( v- Telescoping viewing
- Aperture stop
Approved by the 45th CTL Plenary meeting 2008
$ z" d2 V, x) b) W- BQuestion:
3 e4 {$ |( M! R1 Q* h6 MIs it necessary to always use a 50 mm aperture stop in order to fulfil the requirements for the measuring Condition 1?
Decision:
If the laser beam is well collimated so that the entire radiant power is passing through a 7 mm aperture within 2000 mm distance, it is acceptable to use a 7 mm aperture stop for the purpose of testing according to Condition 1.
Note: National Certification Bodies shall provide objective evidence that the whole laser beam is captured with the reduced aperture size.

, n3 U; p1 ]0 \6 {5 B( a) f2 D$ r