Archived posting to the Leica Users Group, 1998/02/08
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]OTT-LITE makes full spectrum, no-emf florescent tubes, and fixtures that run at a high frequency. Much higher than 60hz. I don't remember the exact frequency but 400hz is something that I remember from somewhere. I have OTT lights in all of my fixtures. Call them at 1-800-842-8848 or 1-813-621-0058. Jim At 01:06 PM 2/9/98 -0500, you wrote: > >John_McLeod@designlink.com wrote: > >> Dear Doctors of Leica - >> >> When I use this thing for more than about 10 minutes I begin >> to experience a headache and nausea (no, it's not from the poor quality of my >> slides). I think the problem is either the flickering of the tubes (60 Hz) or >> the EMF radiation from the transformer, but I'm not sure which it is. >> > >As a commercial pilot I am tested for the problem for you are experiencing. It is >called in pilot jargon "flicker vertigo" and is caused by rapid oscillations in >light waves. Yes, it will cause disorientation, dizziness, and nausea. I do not >know of a cure or a way to avoid the condition. Some doctors/scientist say it is >a mild for of epilepsy. I am not a doctor and this is my best guess/observation. >