Re: LED's and laser safety?
I read in !emc-pstc that Richard Hughes rehug...@nortelnetworks.com wrote (in 6b78f2524cd7d5118a0402204840075b02795...@zhard0jc.europe.nort el.com) about 'LED's and laser safety?' on Mon, 28 Oct 2002: If I said that the LVD was 'new approach' then you or someone else would feel the necessity to correct me. Instead I am being castigated for being accurate but hair-splitting. Oh, sure. You can't win. I would not have contested 'new approach', of course, but someone else might indeed do so. Anality rules! -- Regards, John Woodgate, OOO - Own Opinions Only. http://www.jmwa.demon.co.uk Interested in professional sound reinforcement and distribution? Then go to http://www.isce.org.uk PLEASE do NOT copy news posts to me by E-MAIL! --- 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: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: davehe...@attbi.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org 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
RE: LED's and laser safety?
John, If I said that the LVD was 'new approach' then you or someone else would feel the necessity to correct me. Instead I am being castigated for being accurate but hair-splitting. So be it. Richard Hughes -Original Message- From: John Woodgate [mailto:j...@jmwa.demon.co.uk] Sent: 28 October 2002 12:08 To: emc-p...@majordomo.ieee.org Subject: Re: LED's and laser safety? I read in !emc-pstc that Richard Hughes rehug...@nortelnetworks.com wrote (in 6b78f2524cd7d5118a0402204840075b02795...@zhard0jc.europe.nort el.com) about 'LED's and laser safety?' on Mon, 28 Oct 2002: A product carries a CE marking to show that it complies with the national implementations of all applicable 'new approach' EU Directives (and the LVD, which isn't 'new approach'). Why do you say that the LVD is not 'new approach'? It refers to standards, and does not embody the technical provisions itself. I suppose it's not formally 'new approach' because it dates from 1973, long before the term 'new approach' was introduced. But that is hair- splitting. -- Regards, John Woodgate, OOO - Own Opinions Only. http://www.jmwa.demon.co.uk Interested in professional sound reinforcement and distribution? Then go to http://www.isce.org.uk PLEASE do NOT copy news posts to me by E-MAIL! --- 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: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: davehe...@attbi.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org 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
Re: LED's and laser safety?
I read in !emc-pstc that Richard Hughes rehug...@nortelnetworks.com wrote (in 6b78f2524cd7d5118a0402204840075b02795...@zhard0jc.europe.nort el.com) about 'LED's and laser safety?' on Mon, 28 Oct 2002: A product carries a CE marking to show that it complies with the national implementations of all applicable 'new approach' EU Directives (and the LVD, which isn't 'new approach'). Why do you say that the LVD is not 'new approach'? It refers to standards, and does not embody the technical provisions itself. I suppose it's not formally 'new approach' because it dates from 1973, long before the term 'new approach' was introduced. But that is hair- splitting. -- Regards, John Woodgate, OOO - Own Opinions Only. http://www.jmwa.demon.co.uk Interested in professional sound reinforcement and distribution? Then go to http://www.isce.org.uk PLEASE do NOT copy news posts to me by E-MAIL! --- 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: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: davehe...@attbi.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org 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
RE: LED's and laser safety?
Warren, A product carries a CE marking to show that it complies with the national implementations of all applicable 'new approach' EU Directives (and the LVD, which isn't 'new approach'). Exactly which EU Directive(s) do you think apply to LEDs as components? The LVD certainly does not apply and neither does the RTTED. The General Product Safety Directive does apply but that does not require the CE marking. If the legislation in Europe did require LEDs to be CE marked then it would require an amending EU directive (which would then need to be transposed into the laws of each Member State) to change things. What we were discussing was the level of detail required to show whether certain LEDs came within the category of being inherently Class 1 per IEC/EN 60825-1. Let's not confuse standards with Directives: it is possible to use a Harmonised Standard to demonstrate conformity with the provisions of certain EU Directives, but that does not mean that compliance with a standard confers the right to fit the CE marking where no directive applies. Regards, Richard Hughes -Original Message- From: Warren Birmingham [mailto:war...@comfortjets.com] Sent: 27 October 2002 21:40 To: emc-p...@ieee.org Subject: Re: LED's and laser safety? I think the confusion came from the different types of lasers, which I did not provide any differentiation. I was speaking about non-focused LEDs that are on display panels, not LEDs that are considered Class I lasers. All LEDs were previously subject to approval for a CE Mark, but non-focused display types were not required to be by UL. The Europeans have adopted UL viewpoint on these types of LEDs only. Non-focused display LEDs are being dropped from the program, the others continue to require approval by both the Europeans and UL. Sorry about any confusion. Warren Birmingham Epsilon-Mu Consultants On Monday, Oct 14, 2002, at 04:53 US/Pacific, richwo...@tycoint.com wrote: I sure would love to hear that argument. Richard Woods Sensormatic Electronics Tyco International -Original Message- From: Warren Birmingham [mailto:war...@comfortjets.com] Sent: Friday, October 11, 2002 6:06 PM To: emc-p...@ieee.org Subject: Re: LED's and laser safety? Gary, I was recently in conversation with UL about LEDs whereas I am now being told that UL has convinced the European counterparts that LEDs are no longer considered Class I Lasers and the requirements for them to be tested as such has been dropped. UL no longer treats them that way in their CB Reports. Warren Birmingham Epsilon-Mu Consultants (510) 793-4806 email: war...@epsilon-mu.com website: http://www.epsilon-mu.com On Thursday, Oct 10, 2002, at 08:53 US/Pacific, Gary McInturff wrote: 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: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: davehe...@attbi.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org 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 --- 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: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: davehe...@attbi.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org 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 --- This message is from the IEEE EMC Society Product Safety Technical Committee emc
Re: LED's and laser safety?
I think the confusion came from the different types of lasers, which I did not provide any differentiation. I was speaking about non-focused LEDs that are on display panels, not LEDs that are considered Class I lasers. All LEDs were previously subject to approval for a CE Mark, but non-focused display types were not required to be by UL. The Europeans have adopted UL viewpoint on these types of LEDs only. Non-focused display LEDs are being dropped from the program, the others continue to require approval by both the Europeans and UL. Sorry about any confusion. Warren Birmingham Epsilon-Mu Consultants On Monday, Oct 14, 2002, at 04:53 US/Pacific, richwo...@tycoint.com wrote: I sure would love to hear that argument. Richard Woods Sensormatic Electronics Tyco International -Original Message- From: Warren Birmingham [mailto:war...@comfortjets.com] Sent: Friday, October 11, 2002 6:06 PM To: emc-p...@ieee.org Subject: Re: LED's and laser safety? Gary, I was recently in conversation with UL about LEDs whereas I am now being told that UL has convinced the European counterparts that LEDs are no longer considered Class I Lasers and the requirements for them to be tested as such has been dropped. UL no longer treats them that way in their CB Reports. Warren Birmingham Epsilon-Mu Consultants (510) 793-4806 email: war...@epsilon-mu.com website: http://www.epsilon-mu.com On Thursday, Oct 10, 2002, at 08:53 US/Pacific, Gary McInturff wrote: 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: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: davehe...@attbi.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org 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 --- 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: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: davehe...@attbi.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org 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 --- 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: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: davehe...@attbi.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org 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
RE: LED's and laser safety?
Folks, Having now communicated with UL and others on this matter, I understand that there is no agreement between UL and their European counterparts that all LEDs are Class 1 (which is what I infer from the comment below). Even if such an agreement been in existence, its significance for companies wishing to use compliance with Harmonised Standards to support their declaration of conformity with the LVD or RTTED would be highly questionable. However, it seems that UL do not (in general - it's impracticable to make a categorical statement about such large organisations) mention those LEDs that are of the surface-emitting type (known as SLEDs) in their reports. However, not all LEDs are of this type and so the generalised statement is inaccurate. For further information about the safety of SLEDs and some other types of semiconductor optical emitter you may be interested in the statement published by the International Commission on Non-Ionising Radiation Protection (ICNIRP): http://www.icnirp.de/documents/led.pdf UL's stance on the safety of SLEDs can be seen to be in line with this statement by the international body on non-ionising radiation. Note also that IEC 60825-1, although mentioning in the Note to Clause 9.1 that single-fault condition testing is not needed for SLEDs, does not go as far as to say that all SLEDs are inherently Class 1. I hope that the above clarifies rather than confuses. My own opinions as always, Richard Hughes -Original Message- From: Warren Birmingham [mailto:war...@comfortjets.com] Sent: 11 October 2002 23:06 To: emc-p...@ieee.org Subject: Re: LED's and laser safety? Gary, I was recently in conversation with UL about LEDs whereas I am now being told that UL has convinced the European counterparts that LEDs are no longer considered Class I Lasers and the requirements for them to be tested as such has been dropped. UL no longer treats them that way in their CB Reports. Warren Birmingham Epsilon-Mu Consultants (510) 793-4806 email: war...@epsilon-mu.com website: http://www.epsilon-mu.com On Thursday, Oct 10, 2002, at 08:53 US/Pacific, Gary McInturff wrote: 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: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: davehe...@attbi.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org 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
Re: LED's and laser safety?
I read in !emc-pstc that richwo...@tycoint.com wrote (in 846BF526A205F8 4BA2B6045BBF7E9A6A04675859@flbocexu05) about 'LED's and laser safety?' on Mon, 14 Oct 2002: I sure would love to hear that argument. Just get a time machine and go back to the meeting of the IEC TC85 working group on the subject. (;-) Maybe someone on the group will let you read the Minutes; they are not in the public domain. It's a very sensible decision, IMHO. -- Regards, John Woodgate, OOO - Own Opinions Only. http://www.jmwa.demon.co.uk Interested in professional sound reinforcement and distribution? Then go to http://www.isce.org.uk PLEASE do NOT copy news posts to me by E-MAIL! --- 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: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: davehe...@attbi.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org 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
RE: LED's and laser safety?
I sure would love to hear that argument. Richard Woods Sensormatic Electronics Tyco International -Original Message- From: Warren Birmingham [mailto:war...@comfortjets.com] Sent: Friday, October 11, 2002 6:06 PM To: emc-p...@ieee.org Subject: Re: LED's and laser safety? Gary, I was recently in conversation with UL about LEDs whereas I am now being told that UL has convinced the European counterparts that LEDs are no longer considered Class I Lasers and the requirements for them to be tested as such has been dropped. UL no longer treats them that way in their CB Reports. Warren Birmingham Epsilon-Mu Consultants (510) 793-4806 email: war...@epsilon-mu.com website: http://www.epsilon-mu.com On Thursday, Oct 10, 2002, at 08:53 US/Pacific, Gary McInturff wrote: 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: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: davehe...@attbi.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org 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 --- 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: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: davehe...@attbi.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org 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
Re: LED's and laser safety?
Gary, I was recently in conversation with UL about LEDs whereas I am now being told that UL has convinced the European counterparts that LEDs are no longer considered Class I Lasers and the requirements for them to be tested as such has been dropped. UL no longer treats them that way in their CB Reports. Warren Birmingham Epsilon-Mu Consultants (510) 793-4806 email: war...@epsilon-mu.com website: http://www.epsilon-mu.com On Thursday, Oct 10, 2002, at 08:53 US/Pacific, Gary McInturff wrote: 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: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: davehe...@attbi.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org 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
RE: LED's and laser safety?
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:peter.tar...@sanmina-sci.com] 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 peter.tar...@sanmina-sci.com -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: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: davehe...@attbi.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org 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
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 peter.tar...@sanmina-sci.com -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: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: davehe...@attbi.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org 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
RE: LED's and laser safety?
Gary, I have to be concerned about LEDs also and have found that I need to consult EN 60825-1 in order to determine the design and documentation requirements for Class II LEDs. Our EU safety agency requires that we demonstrate compliance even with Class 1 devices. For the lower emission LEDs, compliance can usually be demonstrated by a review of the LED specifications and perhaps a fault test. Otherwise the emissions must be measured. The standard was an requirement for us in one situation where we used a high intensity Class 2 LED inside the product in order to obtain the necessary light outside the product. The external emission was Class 1, but labels and documentation was required for service. Regards, Richard Woods Sensormatic Electronics Tyco International Original Message- From: Gary McInturff [mailto:gary.mcintu...@worldwidepackets.com] Sent: Thursday, October 10, 2002 11:53 AM To: EMC-PSTC (E-mail) Subject: LED's and laser safety? 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: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: davehe...@attbi.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org 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 --- 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: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: davehe...@attbi.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org 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
LED's and laser safety?
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: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: davehe...@attbi.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org 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
