[Laser] Parabolas.

[Chuck Hast]

On Sunday 11 August 2002 22:33 L, you wrote:
> Kurt,
>
> Good to see your posts here.  I'm also interested in reflector designs.
>
> KD7JYK wrote:
> > meantime try some of the cheap magnifying mirrors used for makeup, you
> > can find them at the drug stores.  Not the best but better than nothing.
>
> I have experimented with several cheap magnifying mirrors at IR freqs.
> None of them were as good as a surplus 4" lens I picked up at a ham
> fest.  But my wife has a magnifying mirror that is excellent.  I didn't
> understand why she was so protective of it until she told me what it
> cost.  $59.95!  And that was maybe 10 years ago.  It was made by Magic
> Focus, Inc.
>


Dexter et al
I was in Bed Bath and Beyond, and came across some 6 and 8 inch
mirrors which had very good focus ability for $19.95 for the 8 inch one.
I do not remember what the cost on the 6 was, I am planning on going
in and getting me 2 for a link I want to build, I could not see anything
wrong with the product of the focus, and the focal point was not that
distant, these mirrors were more designed for I guess checking skin
blemishes as the focal point was only a couple of feet at most from
the mirror. One of those mirrors and some PVC and you have a nice
capture device.


-- 
Chuck Hast
KP4DJT
kp4djt@tampabay.rr.com
To paraphrase my flight instructor;
"the only dumb question is the one you DID NOT ask resulting in my
going out and having to identify your bits and pieces in the midst of
torn and twisted metal."