[Raytrace] Re: Raytrace digest, Vol 1 #23 - 3 msgs

[Jim Havens]

Tom always referred to the Waineo Null as the "reflection null".  A few
ATM's who used the test after Tom popularized it began calling it the
"Waineo Null" in his honor.  And yes, Tom was a super guy.   -Jim Havens

> You can rest assured that it is correct.  Zemax confirms the PV error is
> very close to 1/100 wave (on the wavefront emerging from the Parabola in
the
> test setup).
>
>
> With software like OSLO around tests like these become readily available.
> But I fear that ATM's will never really take advantage of null testing
>
>
> I have never used the test but know someone who has and he is very happy.
> He did a tolerance analysis as well to see what figuring errors might
result
> from spacing errors.  Which would be a good exercise to do on this
> configuration.
>
> If anyone wants to play with a variety of nulls all aimed at possible ways
> to figure Cass secondaries, see my web site then go to page 13 - see below
>
>  <http://www.users.bigpond.com/pjifl>
>
> Somewhere in that article I mentioned the 'Waineo' null test in passing on
> to variants.  I specifically did NOT call it a Waineo test because it was
> around long before Tom Waineo commendably tried to educate the ATM
movement
> about it.
>
> Maybe this was counterproductive on my part because people probably
> recogmise it more easily under this name.  And it would seem that Tom was
a
> really nice guy.  But the ATM world is insular enough as it is.  On the
> other hand, I dont really know what it should be called so maybe calling
it
> the Waineo test is reasonable........
>
>
> I would really love to try this test myself.  Maybe the next project in
> line.......
>