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Re: [ATM] Bench star test
Bob,
> Since the page doesn't show what
> the setup is, I'm not sure of what I'm seeing.
The source is a bare laser diode without the collimating lens. It
makes a cone large enough to cover the mirror. The source was put on
the same stage as the camera--a web cam without the lens. It's a real
artificial star test, except that we aren't worried about the large
amount of spherical aberration present in testing a paraboloid at COC,
because the data reduction should take care of that.
Dale is getting some better images than what he posted, before. I
have spent some time trying to analyze them, but have not had much
success, yet. There are some practicalities of actual images that are
harder than simulated images.
--
Steve Koehler
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