lithiumav2010 Posted January 13, 2011 Share Posted January 13, 2011 I have had a couple of customers asking about UV lamps and why are they becoming difficult to get hold of certain brands of UV i.e. Iwasaki Lamps. So I just thought I would post a couple of links to some information with regards to UV lamps: Health and Safety Comprehensive operating instructions are supplied. Where personal UV light exposure can occur during operation, maximum permissible exposure times for the unprotected skin and eye are provided at specified distances from the UV lamp. This enables strict compliance with the new EU rules, defined by the Optical Radiation Directive 2006/25/EC which was brought into law in Great Britain on the 27th April 2010 by the Control of Artificial Optical Radiation at Work Regulations 2010. Link to Osram UV http://en.wikipedia.org/wiki/Mercury-vapor_lamp "The use of mercury vapor lamps for lighting purposes will be banned in the EU in 2015. As this ban is designed to phase out less efficient lamps it does not affect the use of mercury in compact fluorescent lamp nor the use of mercury lamps for purposes other than lighting.[5] In the USA, ballasts and fixtures were banned in 2008.[6] Because of this, several manufacturers have begun selling Compact Fluorescent replacement bulbs for mercury vapor fixtures, which do not require modifications to the existing fixture." http://www.hse.gov.uk/radiation/nonionising/employers-aor.pdf http://www.hse.gov.uk/radiation/nonionising/optical.htm I look forward to hearing peoples thoughts with regards to alternatives and how this will effect the use of UV ? I hope this was helpful... Link to comment Share on other sites More sharing options...
sleah Posted January 13, 2011 Share Posted January 13, 2011 Interesting. Will this affect the kind of UV that we use? i.e. Blacklight.Will a similar situation stand to other 'banned' lamp types, where it's the general everyday use that's banned, but specialist areas are largely unaffected? Does any one know if there is a CFL 'type' blacklight produced yet that can match a canon? I know low power one's are around as I bought one to play with at home :D Link to comment Share on other sites More sharing options...
Ynot Posted January 13, 2011 Share Posted January 13, 2011 I've seen some of the LED 'UV' lamps that are getting close to being good...Haven't ventured into that to replace our florries or cannon yet, but......... Link to comment Share on other sites More sharing options...
Jamtastic3 Posted January 13, 2011 Share Posted January 13, 2011 The big 400W jobbies are rediculous! I've seen a couple explode over a dancefloor. 4 x 36W strips anyday! :P Link to comment Share on other sites More sharing options...
peza2010 Posted January 13, 2011 Share Posted January 13, 2011 Some of the uv panels are getting pretty good, but how good can they get? I'm probly wrong here but led's will never be able to throw out actual ultraviolet right? Link to comment Share on other sites More sharing options...
dbuckley Posted January 13, 2011 Share Posted January 13, 2011 Some of the uv panels are getting pretty good, but how good can they get? I'm probly wrong here but led's will never be able to throw out actual ultraviolet right?Wasn't that long ago the LEDs were only available in red, and only useful as panel lights... Link to comment Share on other sites More sharing options...
pritch Posted January 13, 2011 Share Posted January 13, 2011 led's will never be able to throw out actual ultraviolet right? Why not? Choosing a random result from Google, I immediately found some LEDs at 395nm, just within what Wikipedia tells me is the UV range. Link to comment Share on other sites More sharing options...
Sparx Posted January 13, 2011 Share Posted January 13, 2011 I have a cheap chinese LED torch, 9 white LED's, 5 UV led's, and one laser pointer. The uv led's will quite happily floresce the security features on a bank note, and UV facepaint / glowsticks that havent snapped yet, so I'd imagine there are UV leds available! Link to comment Share on other sites More sharing options...
Simon Lewis Posted January 13, 2011 Share Posted January 13, 2011 Someone has posted on BR that UV LEDs lose their efficacy over a relatively short period of time, due to the UV degrading the epoxy lens? However, UV LEDs are available down to 247nm, so black light versions should be fairly easy to make.The withdrawal of high pressure mercury lamps is driven by the Eco-Design Requirements for Energy-Using Products, 2005/32/EC, but the restrictions on exposure are from the Optical Radiation Directive2006/25/EC. The latter doesn't ban their use, but requires exposure to be reduced as far as is reasonably practical.So, two different drivers, but it might be understandable if manufacturers restrict certain sales lines now. Is there an argument for stating that theatre use is not the same as "Street, office and industrial lighting" and therefore earns an exemption? Simon Link to comment Share on other sites More sharing options...
musht Posted January 14, 2011 Share Posted January 14, 2011 Can`t say be sorry to see back of mercury vapour lamps, in any form, really all heat and no light things. Personally hate mercury UV `cannons`, as Jamtastic says they have a reasonable possiblilty of going ker ferking bang and they really aren`t that efficient a source of UVA anyway. The self ballasted mercury lamps make great non radiating heaters :-( UV fluro comes in more than just strips http://www.terralec.co.uk/uv_lighting/ultra_violet_wash_light_100_watt/24521_p.html thought Terralec had a DMX version of this at one point. and the very handy http://www.terralec.co.uk/uv_lighting/uv_lamp_holder_with_reflector/19324_p.html both available in similar formats from other suppliers UV fluro and MV blacklight blue are both centered around 370nm. LEDs as used in typical current LED UV floods, great for fast on and strobe effects 14hours a day in a theme park probably not, are centered around 400nm +- 5nm , which is a visible purple, eye sensitivity drops sharply below 400nm. Typical 400nm LEDs on ebay yesterday ;-) http://cgi.ebay.co.uk/20x-5mm-Ultra-Violet-UV-2000-mcd-LED-Free-Resistors-/120670676166?pt=UK_BOI_Electrical_Components_Supplies_ET&hash=item1c188864c6 3 quid for 20, 15p per LED. 247nm LEDs are possible but not quite in Maplins yet: http://www.semiconductor-today.com/news_items/2010/JUNE/SET_020610.htm Below 400nm yields from wafers drop and costs skyrocket, 380nm LED, metal can, glass lens to avoid epoxy aging problem http://parts.digikey.com/1/parts/1665416-led-ultraviolet-metal-can-380nm-oue8a380y1.html 11.87 USD/piece about 7.50 GBP an LED. Link to comment Share on other sites More sharing options...
adam2 Posted January 14, 2011 Share Posted January 14, 2011 Many less eficient lamp types are to be banned in the next few years including most mercury lamps, most old style circular flourescents,most T12 flourescents, and most types of copper/iron control gear. Specialist lamps including blacklight are exempt, as are specialist uses such as theatre.I suspect however that some blacklight lamps though not actually banned, will go out of production for economic reasons.The ban on mercury lamps for general lighting will probably render production of the blacklight versions uneconomic.The ban on T12 flourescents may make production of the blacklight version uneconomic. I would expect that T5, T8, and CFL blacklights will be available for many years yet. The presently available blacklight LEDs are borderline uv/violet, but LED technology is improving rapidly. Link to comment Share on other sites More sharing options...
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