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RE: [ATM] Star test with laser light sources




I have no first hand knowledge. Are you trying to "see" or "image" the
rings?

Why not just use an incandescent light? Must you have monochromatic light?
The monochromatic nature of the laser may be causing you trouble such as the
speckles and rings. Or those speckles you couldn't remove might be pits...
Nah! Just dust on the surface and strange diffraction effects with the dust
from the monochromatic light. Alternatively the grain of the steel ball may
be causing you to see a "cluster" of stars on the ball surface.

Jerry


-----Original Message-----      Snipped
From: Ray@J-Engineering.com


Hi All,

I used a 6 mm polished ball bearing and shined a green laser pointer on 
it such that the reflection was directed toward a telescope 350 feet 
away. 



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