Re: light gathering vs diameter of reflecting spheres

[Charles Stumpfel <stumpfel@xxxxxxxxxxxx>]

My original message (bottom) on the acrylic hemispheres with 9"  dia. at
$30-40 was from memory and likely wrong since I could not find it again.
Badger has 9" dia stainless hemispheres but no price was listed.  They also
      have larger diameter acrylic hemispheres.
Sun-Rise has some prices on larger spheres but they are more than the
      $30-40.

Chas Stumpfel




This company supplies hemispherical mirrors for safety applications:

Badger Merchandise Service

1-800-771-4972

(phone message says they are closed until Monday)

http://www.badgermart.com/sentinel.html
----------------------------------------------------------------------------
Another company was

http://www.sun-rise.com/mirrors/621884.001.html
----------------------------------------------------------------------------

Probably found by searching     convex mirror.......safety mirror......whole sky mirror.... all sky mirror.

Sun-Rise states these acrylic hemispherical mirrors are coated on the inner side - not front surface.
I think they are sold mostly for viewing with the eye.

For some applications there might be objectionable reflections, especially of strong sources,  from the uncoated acrylic surface.  ??


Chas Stumpfel


---------------------- Forwarded by Charles Stumpfel/arl on 07/07/2000
02:33 PM ---------------------------


Ron <security@xxxxxxx> on 07/07/2000 01:52:05 PM





To:   panorama-l@xxxxxxxxxxxxxxxxx
cc:
Subject:  Re: light gathering vs diameter of reflecting spheres


Would you mind posting the site address so others could take a peek at the
reflecting spheres. I have been searching for proper lighting for months
without success. Thanks in advance .....
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----- Original Message -----
From: "Charles Stumpfel" <stumpfel@xxxxxxxxxxxx>
To: <panorama-l@xxxxxxxxxxxxxxxxx>
Sent: Friday, July 07, 2000 8:11 AM
Subject: RE: light gathering vs diameter of reflecting spheres


>
>
> Mike,
>
> Thanks for the information on safety reflectors.  An internet search
found
> a company that supplies acrylic hemispheres at $30-40 for a 9" diameter
> with larger diameters available.
>
> Chas
>
>