[Laser] Sauce pan Lids!!

Richard Burrows [email protected]
Mon, 27 Jan 2003 08:13:59 -0000


IR mirrors
My wife has kindly donated  (for trial purposes) a stainless steel 8" =
dia saucepan lid.This can project an reasonable image at its focus, it =
is like a cassigarian mirror (hole in the middle). When tried with a IR =
Rx it beats a 4" lens hands down, it is lighter and has a f ratio of =
1.1.I am now looking in the charity shops for one I can keep :)

--- StripMime Report -- processed MIME parts ---
multipart/alternative
  text/plain (text body -- kept)
  text/html
The reason this message is shown is because the post was in HTML
or had an attachment.  Attachments are not allowed.  To learn how
to post in Plain-Text go to: http://www.expita.com/nomime.html  ---