The mercury vapor discharge in those has lots of visible light

The attached spectrum is from a Circline Fluourescent that screws into a table lamp. -John ============= > On Fri, Jan 29, 2010 at 08:00:41PM -0800, J. Forster wrote: >> I believe that is correct, but don't have a part number on the LED to >> verify it. It's certainly NOT a line spectrum. >> >> BTW, I also looked at a CFL and there were plenty of lines. > > The mercury vapor discharge in those has lots of visible light > lines - especially green and blue if I remember correctly (could obviously > look it up)... so you have a mixture of phosphor output and direct light > from the mercury vapor... > > > >> >> -John > > > -- > Dave Emery N1PRE/AE, die@dieconsulting.com DIE Consulting, Weston, Mass > 02493 > "An empty zombie mind with a forlorn barely readable weatherbeaten > 'For Rent' sign still vainly flapping outside on the weed encrusted pole - > in > celebration of what could have been, but wasn't and is not to be now > either." > >

AARGH! No wonder those things hurt my eyes! One of my biggest concerns with the circline fluorescent lamp in my Luxo magnifier is it burns my hands with UV when I work under it. -Chuck Harris J. Forster wrote: > The attached spectrum is from a Circline Fluourescent that screws into a > table lamp. > > -John >

J. Forster wrote: > The attached spectrum is from a Circline Fluourescent that screws into a > table lamp. This is the type of spectrum I would like to avoid. Continuous spectrum and warm white is my preference for normal light. Fluorescent "sky blue white" is what I don't want. Cheers, Magnus

In general I agree, but the blue-white LED flashlight is pretty useful for looking inside electronics. -John ============= > J. Forster wrote: >> The attached spectrum is from a Circline Fluourescent that screws into a >> table lamp. > > This is the type of spectrum I would like to avoid. > > Continuous spectrum and warm white is my preference for normal light. > Fluorescent "sky blue white" is what I don't want. > > Cheers, > Magnus > >