On Thu, 8 Aug 2002 06:32:14 +0100 Sergio Masci writes: > ----- Original Message ----- > From: Harold M Hallikainen > To: > Sent: Wednesday, August 07, 2002 10:53 PM > Subject: Re: [EE]:Is this true or is it Bull .... !! > > > > Sounds like a crock to me! However, I recently read a couple > places of a > > new kind of filament that keeps radiation other than visible light > from > > escaping, so the lamp efficiency goes from something like 20% to > 60%. I'm > > waiting for those! > > > > I thought a normal household light bulb only converted 4% of the > power into > visible light. Can anyone confirm or point to a reference for this > 20% > figure. > Looks like you're right! I was using my faulty memory. Here's an article on the subject (from the San Francisco Chronicle) that says the new technique increases efficiency from 5% to almost 100%. http://sfgate.com/cgi-bin/article.cgi?file=/gate/archive/2002/06/06/nanot ch.DTL And here's an article from Electronic Engineering Times suggesting an increase from 5% to 60%. http://www.eetimes.com/story/OEG20020618S0014 Harold FCC Rules Online at http://hallikainen.com/FccRules Lighting control for theatre and television at http://www.dovesystems.com Reach broadcasters, engineers, manufacturers, compliance labs, and attorneys. Advertise at http://www.hallikainen.com/FccRules/ . ________________________________________________________________ GET INTERNET ACCESS FROM JUNO! Juno offers FREE or PREMIUM Internet access for less! Join Juno today! For your FREE software, visit: http://dl.www.juno.com/get/web/. -- http://www.piclist.com hint: To leave the PICList mailto:piclist-unsubscribe-request@mitvma.mit.edu