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[ATM] Null test for convex surface in OSLO

Question to OSLO EDU users:
I'm trying to figure out a test for measuring a convex surface (surface 
5) with Conic Constant of -7.35.
Based on the Meinel and Meinel test, I came to the following set-up in OSLO.

Used a convex-convex lens to produce a "point source" (surface 2 and 3).
Plan to use mono-chromatic "green" light.

With these parameters and conditions, is this a Null test for this 
aspheric convex surface.
Or did a miss something.

*LENS DATA
Test Setup Convex Aspheric
 SRF      RADIUS      THICKNESS   APERTURE RADIUS       GLASS  SPE  NOTE
 OBJ       --        1.0000e+20    1.2218e+18             AIR    

 AST    50.000000    100.000000     50.000000 AS          AIR    

  2    700.000000     15.000000     51.221791 S         N-BK7 C  
  3   -700.000000    1.4590e+03     50.968642 S           AIR    

  4        --         20.000000     74.094706 S         N-BK7 C  
  5   -1.5000e+03        --         75.200854 S    REFL_HATCH   *
  6   -1.5000e+03    -20.000000     75.200854 S         N-BK7 C  
  7        --       -1.2883e+03 S   74.301646 S           AIR    

 IMS       --            --         13.554314 S                 *

*CONIC AND POLYNOMIAL ASPHERIC DATA
 SRF        CC          AD          AE          AF          AG
  5    -7.3500e+00      --          --          --          --   

Any feedback is welcome.

Guy
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