[Laser] The Golly factor

[Thomas Upton]

Thanks!

Tom Upton AD6N

W2MXW wrote:

> -----Original Message-----
> From: Thomas Upton <stjohn@ocsnet.net>
> To: laser@mailman.qth.net <laser@mailman.qth.net>
> Date: Monday, January 13, 2003 1:21 AM
> Subject: [Laser] The Golly factor
>
> >The cone idea (light traveling down a tubular conical reflector from
> >wide end to smaller end) is my own, but in this great world some one
> >much more significant than I must have already researched it -- and
> >perhaps discovered its inapplicability!
> >
>
> Yes, "they" beat you to it... sorry! :-( And I'd say it is indeed quite
> applicable to our purposes. The idea, in one permutation or another, is used
> in a variety of applications and at frequencies from mm-wave to x-ray. Some
> examples are collectors for bolometers (total power detectors) in the
> mm-wave thru IR used in astronomical research; solar collectors for interior
> lighting of buildings (using mirrored tubes (overmoded wguide!!) or
> dielectric rod or fiber bundles to deliver the light to "fixtures"; a
> project at the AMASCI website (forgot URL, you'll have to search) for
> collecting IR from the night sky to send to a detector for monitoring cloud
> cover and IR scattering, collector is made from Al foil glued into a funnel,
> some flashlights (used in "reverse" for beam-forming, a` la conical horn
> uwave antennas), and in x-ray telescopes where it is called a "grazing
> incidence" mirror.
> Easy enough to do, so why not try one out??
>
> 73 es happy lasering,
> Jon W2MXW
>
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