Re: [ATM] Suggestions for a "focus screen" for an optical testbench.

["Thomas Janstrom" <tomjan@ozemail.com.au>]

Hi Bob,

I have some glass cover slips and 5um AlOx, so I'll give that a try, if
that proves too course I'll just have to find a teaspoon's worth of
something finer;)

Clear Skies, Thomas.
www.tjanstrom.com
www.norsewines.com.au 

-----Original Message-----
Bob May
Sent: Monday, 24 October 2005 5:29 AM
 Try a slide cover glass with 5 micron grit grouhd on it til it is
all ground.  If you don't have the glass, I could probably do one
in a few minutes.
I don't know if 5 micron will be fine enough for you as it is
still pretty rouhg for this work.  Maybe somebody has some 1
micron or finer grit and can do a much finer ground glass screen.
 

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