Re: ATM Very small bad mirrors. (Somewhat OT)

["Bob May" <bobmay@nethere.com>]

If you're trying to make a lightsource for reading by, you really want a
wide angle source of even illumination.  You won't get that with a good,
focused optical system.
If you do want a good concave surface, a small planoconcave lens will
provide the base for that.  In addition, there are places that make
reflectors for things like flashlights and so forth in plastic.  You can
usually get a sample from them for nothing but the begging if you work it
right.
Bob May
http://nav.to/bobmay
bobmay@nethere.com
NEW! http://bobmay.astronomy.net