[ATM] ATM Schiefspieglers in Oslo EDU - updated

["Donald Good" <donald.good@comcast.net>]

The correction to the OSLO specifications by Mauritz Andersson to use Tilt
and Bend simplifies the calculations considerably in addition to fixing the
problem with the distortion graph.  The spreadsheet has been modified,
eliminating the extraneous calculations and adding a cell range K3:L48 which
can be copied to a text file with a .len extension.  This file can be opened
by OSLO EDU (formerly OSLO LT) thus eliminating the need to manually enter
the parameters for various Stevick-Paul scope configurations.  Remember to
use the Autofocus function to get the best focus based on the Minimum
on-axis spot size (monochromatic) after opening the file.  I find that this
operation needs to be done twice in succession to converge to the best focus
for a new configuration or any major change to an existing configuration.

The Web page has also been updated with graphics based on these simpler
calculations.  OSLO reports a Strehl ratio of .999733!!

Also, in response to Mauritz's request for additional spot plots, I added
the plots for 4 edge of field points designated North, South, East, and West
;) at the in-focus position.  And the .zip file can now be found.

http://home.comcast.net/~donald.good/SPT/Stevick-Paul.html

Clear skies
Don Good

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