Folks, IEC 60825-1:2001 has an Annex G "Information to be provided by manufacturers of LEDs". This is an informative annex, the purpose for which is explained in the above title.
I suggest that you start with asking your LED vendor to send you data in conformity with the above. If you're lucky you'll get some useful info. If you're unlucky you'll get "but IEC 60825-1 says it's for laser products" - tell such suppliers to go read the scope, which states "Throughout this part 1 light emitting diodes (LED) are included whenever the word "laser" is used." If enough users of LEDs ask their LED suppliers for Annex G data then eventually those suppliers will twig that this is an important marketing requirement so they had better start providing the info. Before anyone complains, yes it is known that the latest version of EN 60950-1 only cross-refers to the older version of 60825-1, but we're working to correct this in IEC TC108 (now responsible for IEC 60950-x). Reason? - difficulty of balancing revision dates within multiple standards - both revised documents were published the same year. It is therefore for users in this forum to satisfy themselves that an LED that is e.g. Class 1 per IEC 60825-1:2001 also meets the national implementations of IEC 60825-1 for the countries they wish to supply into. End of personal views... Regards, Richard Hughes -----Original Message----- From: Peter L. Tarver [mailto:[email protected]] Sent: 10 October 2002 22:44 To: EMC-PSTC (E-mail) Subject: RE: LED's and laser safety? Gary - IEC60825-1 uses units of energy, energy/unit area, power and power/unit area (regardless of any "special" names associated with them) rather than candela or lumens, which are typical for simple LEDs. You'd need some formula to convert the units to those compatible with IEC60825-1. However, you might also want to look into IEC TS60825-6, Safety of Laser Products - Part 6: Safety of Products with Optical Sources, Exclusively Used for Visible Information Transmission to the Human Eye. A Technical Specification doesn't hold the same sway as a standard, but it is a useful reference for indicator LEDs. Regards, Peter L. Tarver, PE Product Safety Manager Sanmina-SCI Homologation Services San Jose, CA [email protected] > -----Original Message----- > From: Gary McInturff > Sent: Thursday, October 10, 2002 8:53 AM > > IEC-825 has incorporated LED's into the > safety standard but, from what I can tell, left a > great deal of confusion. > I typically deal with the 5 - 10 mcd > devices and haven't been required to provide any > IEC-825 conformity proof for the Western European > test house. We may be jumping up to about 60 mcd > and non-focused devices and I don't know where > the standard starts to become concerned. I hate > to buy the standard if it doesn't provide any > clarity for these types of parts. > Could you folks clue me in? > Gary > ------------------------------------------- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: [email protected] with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: [email protected] Dave Heald: [email protected] For policy questions, send mail to: Richard Nute: [email protected] Jim Bacher: [email protected] All emc-pstc postings are archived and searchable on the web at: http://ieeepstc.mindcruiser.com/ Click on "browse" and then "emc-pstc mailing list"
