Re: [ATM] Mike lockwood's flats page

[Mike Lockwood <melockwo@uiuc.edu>]

Steve,

steve beccue wrote:
> Are LEDs (or subthreshold lasers) to broad a source
> for this?

Sorry I missed that question.  Most LEDs have quite a broad spectrum 
and don't work well for monochromatic sources.  Some may work, but 
I've never seen them.

Lasers are monochromatic, but they would require lots of diffusion to 
work in a setup like mine and then I think the resulting light would 
be REALLY dim.  Diffused laser pointers have been used to fringe test 
smaller mirrors.  See my recent posts for a link to this.

Fluorescent bulbs are safe to look at, easily diffused (they are a 
large light source), inexpensive, and cool in operation, so they are a 
nice compromise.

	Mike Lockwood

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