[ATM] additional lurie-houghton degrees of freedom

[Richard]

Hi Ukyo,

Wednesday, September 20, 2006, 2:23:12 PM, you wrote:

UC> Formular version:*SPOT SIZES    GEO RMS Y   GEO RMS X   GEO
UC> RMS R  DIFFR LIMIT     CENTY       CENTX  3.9825e-05 
UC> 3.9825e-05  5.6321e-05    0.000151      --          --    
UC>  
UC> OSLO optimized version:*SPOT SIZES    GEO RMS Y   GEO RMS X
UC> GEO RMS R  DIFFR LIMIT     CENTY       CENTX  2.4127e-05 
UC> 2.4127e-05  3.4121e-05    0.000151      --          --    

I'm not sure what you are doing there Ukyo, but I put Guy's
primary mirror and separation into the LH calculator. I then fed
the calculator output into Zemax and entered Guys corrector
thickness numbers. With NO optimisation whatsoever, I get spot
sizes of 0.799e-06 RMS, 1.568e-06 GEO on-axis, and the spot diagram
shows a fully diffraction limited design up to more than +/- 1
degree field, over full F,d,C visible spectrum. RMS wavefront
error on-axis is 0.0002 waves and at 1 degree field 0.0484
waves.

I'm quite sure Zemax could optimise that to a siginificant
degree more than OSLO, as it always does, but what's the point?

(Dimensions in millimeters)
Surf     Radius  Thickness     Glass  Diameter Conic
 OBJ   Infinity   Infinity                   0     0
 STO   1738.874      17.78    N-BAK4     95.25     0
   2   -4729.94       2.54               95.25     0
   3  -1738.874      10.16    N-BAK4     95.25     0
   4    4729.94      914.4               95.25     0
   5      -2032  -1014.116    MIRROR     101.6     0
 IMA   Infinity                       35.66137     0


-- 

Best regards,
  Richard in the UK