From: J-Engineering 
To: atm{at}shore.net
Reply-To: J-Engineering 


Hi All,

Could someone direct me to an online source for Foucault and Ronchi
testing.  What I'm looking for is how to make the images look cleaner, not
how to interpret them.

Two immediate problems in the images are: 1)  In the Ronchi test I see a
bright smearing of the image perpendicular to the lines of the grating .
Smearing extends several mirror diameters to the sides of the mirror. 2)  
In the slitless Foucault test I see a very large number of light
lines parallel to the knife edge.  These lines move when my eye moves.

In both tests, the grating or knife are about 3 mm ahead of a frosted
window.  There is a 3 mm dia hole between window and grating or knife edge.

Mirrors are spherical for now.

Thanks for any help,

Ray

--
Ray Jurevicius
www.J-Engineering.com
Metal Forming Simulation

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