From: "Dan Chaffee" 
To: 
Reply-To: "Dan Chaffee" 


>It doesn't matter if you use "ray" or some other theory to support
>your particular set of numbers. If the diagonal mirror is crappy,
>the image will be crappy. The farther away from the mirror the
>image plane is, the farther from the axis deviated rays will be...


If we could explain the nature of aberrations with deviated rays, which
implies an angular displacement of energy, then this sounds reasonable.
However, assuming it's this simple seems to suggest that once waves become
out of phase, the amplitude of the phase error continues to to increase
with distance traveled. I'm not so sure about this...


Dan Chaffee

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