Kathy, IEC60825-1 is a standard for LED's and LASERs. In most cases, LEDs are class 1 and thus harmless, but the data of the LED should tell you about this. I was told by LEd manufacturer that LED's are mostly class 1, but due to the requirement of more light power for LEDs, they could get at the edge of beiing harmless. The latter also depends on the temperature (the colder the worse) and the color of the LED (blue coloured LEDs are worse). Also EN60950, 2nd ed. has a special Amendement 11 telling about the laserclassification of LEDs. Regards, Chris Collin
On Thu, 05 October 2000, Kathy Toy wrote: > Sender: [email protected] > X-Listname: emc-pstc > To: [email protected] > Delivered-To: altavista.com%[email protected] > X-Moderator-Address: [email protected] > X-Resent-To: Multiple Recipients <[email protected]> > Received: by ruebert.ieee.org (8.9.3/8.9.3)id OAA23170; Thu, 5 Oct 2000 > 14:05:27 -0400 (EDT) > from ruebert.ieee.org (199.172.136.3) > by smtp.c012.sfo.cp.net (209.228.13.148) with SMTP; 5 Oct 2000 13:06:59 > -0700 > by ruebert.ieee.org (8.9.3/8.9.3) id OAA23170; Thu, 5 Oct 2000 > 14:05:27 -0400 (EDT) > Content-Length: 942 > Content-Type: TEXT/plain; charset=us-ascii > X-Received: 5 Oct 2000 20:06:59 GMT > Precedence: bulk > Content-Md5: iZNme1BcmS48ynHjhvOMtg== > Subject: Correction - > When is an LED evaluated to IEC 825, like a Laser? > X-Info: [Un]Subscribe requests to > [email protected] > [Un]Subscribe requests to > [email protected] > From: Kathy Toy <[email protected]> > Return-Path: <[email protected]> > Mime-Version: 1.0 > Reply-To: Kathy Toy <[email protected]> > Date: Thu, 5 Oct 2000 11:05:12 -0700 (PDT) > X-Mailer: dtmail 1.3.0 @(#)CDE Version 1.3.4 SunOS 5.7 sun4u sparc > Message-Id: <[email protected]> > > > (I restated the question.) > > Our design engineers are using LED more often and > have been asked if the LED are approved by IEC 825. > > Question: When does an LED need to be evaluated > to IEC 825 standard? Are there any other industry > limits for specific LEDs? > > It seems that in the past LEDs were basicly ignored > except for color issues. What is the current > thought or rule on this issue? > > Thanks in advance, > kt > > > > > ------------------------------------------- > This message is from the IEEE EMC Society Product Safety > Technical Committee emc-pstc discussion list. > > To cancel your subscription, send mail to: > [email protected] > with the single line: > unsubscribe emc-pstc > > For help, send mail to the list administrators: > Jim Bacher: [email protected] > Michael Garretson: [email protected] > > For policy questions, send mail to: > Richard Nute: [email protected] _______________________________________________________________________ Free Unlimited Internet Access! Try it now! http://www.zdnet.com/downloads/altavista/index.html _______________________________________________________________________ ------------------------------------------- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. To cancel your subscription, send mail to: [email protected] with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Jim Bacher: [email protected] Michael Garretson: [email protected] For policy questions, send mail to: Richard Nute: [email protected]
