Re: [ATM] Fringe testing Dall Kirkham secondary

[Mike Lockwood <melockwo@uiuc.edu>]

Oops,

Mike Lockwood wrote:
> Now imagine pressing on the right edge of the top of the mirror (as 
> looking from above the pieces).  The mirror would tilt to the right, and 
> the airspace would decrease there.  So, since the mirror is "pivoting" 
> on its center contact point, the decrese in the airspace means you would 
> see fewer fringes between the center and the right side of the test 
> pieces.  You would observe the fringes moving TOWARD the point of 
> pressure, spreading out.

Sorry, make that "AWAY FROM the point of pressure" for this case.  I 
got ahead of myself.

	Mike Lockwood

_______________________________________________
ATM mailing list http://www.atmlist.net/