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

Equivalent measurement setup for the Condition 1 for certain laser beams   W/ @  c8 B8 w4 @5 x

Clause 9.1 Tests Clause 9.2 Measurement of laser radiation Clause 9.3 Measurement geometry 8 a9 S/ `6 Y& h3 E1 T2 F* n4 m% M

60825-1(ed.1);am1;am2 & 60825-1(ed.2) $ `0 I) E2 @. `1 V4 h' y% U- I

Standard(s):
; Q; q' h. x6 ?+ ^& sIEC 60825-1, Ed 1.2 (2001) & Ed 2.0 (2007)
Sub clause(s):
Clause 9.1 Tests
Clause 9.2 Measurement of laser radiation
( }/ a! x9 C$ p- Q& M5 FClause 9.3 Measurement geometry
Decision Sheet n°: DSH 656
$ i6 A1 ?6 j+ `( N8 H. GSubject: Equivalent measurement setup for the Condition 1 for certain laser beams
7 l3 |$ T0 [8 R7 z% ?" ]9 pKey words:
# [" j% G& ^0 c- Condition 1
- Telescoping viewing
8 u. D! B  \6 F3 i( L# [- Aperture stop
0 ]0 J4 Z& X0 y8 Y; N- OApproved by the 45th CTL Plenary meeting 2008
Question:
6 T( e( K1 W+ `1 R1 ?! Q4 Z* K8 SIs it necessary to always use a 50 mm aperture stop in order to fulfil the requirements for the measuring Condition 1?
Decision:
: X$ m' r  @2 C6 o; eIf 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.
5 X7 N. d$ S9 j' B! M