Re: [ATM] Luri-Houghton prescriptions.

["Richard F.L.R. Snashall" <rflrs@rcn.com>]

Bob May wrote:

>Dave Rowe's program will be pessimistic as it focuses to the
>average of the three spots that are generated which means that
>the on-axis will be off because the off-axis spot is used in the
>calculation for spot diameter.  Focus is also usually a bit off
>to minimize the aoo-axis spot size  to the best possible,
>providing that the center spot isn't too badly degraded by this.
>
If this other program can't handle curved focal planes,
I'd suggest OSLO-EDU.  But anyway you might want:

Surf      Radius    Thickness      Glass      Diameter
 OBJ    Infinity     Infinity                        0
 STO    Infinity   -0.1872489                     12.5
   2       104.4         1.23      N-BK7            13
   3        -180         0.12                       13
   4         -93         0.91      N-BK7            13
   5       225.6           61                       13
   6        -119     -59.4853     MIRROR      14.01214
 IM    -109.9273                              1.500205

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