Re: [ATM] Luri-Houghton prescriptions.

["Bob May" <bobmay@nethere.com>]

>>Hi Bob,
Please find attached 2 .len files, they both have spot size less
than 4um
across 0.6x2 degree field
Best Regards,
Ukyo Chen
>>

Interesting that the optimum solutions seem ot be taking the form
of a pair of meniscus lenses rather than a double convex and a
double concave.  those designs that you sent are indeed a lot
better than anything that the typical LH design produces.  The
spots are pretty much free of any aberrations at all.
LEN NEW "No name" 1463.8 9
EBR  159.0
ANG  0.6
DES  "OSLO"
UNI  1.0
// SRF 0
AIR
TH   1.0e+20
AP  1.0472358322e+18
NXT  // SRF 1
GLA BK7
RD   2203.5107301570442
TH   20.0
APN  1
AY1 A -12.5
AY2 A 12.5
AX1 A -12.5
AX2 A 12.5
ATP A 1
AAC A 2
NXT  // SRF 2
AIR
RD   3107.8199784348085
TH   15.0
PK  AP  -1
NXT  // SRF 3
PK  GLA  -2
RD   -1256.309766197812
TH   15.0
PK  AP  -2
NXT  // SRF 4
AIR
RD   -1517.7055342170192
TH   1280.0
PK  AP  -3
NXT  // SRF 5
RFH
RD   -2925.0
PK THM  -1 80.0
NXT  // SRF 6
RFH
TH   159.0
NXT  // SRF 7
AIR
PY   0.0
NXT  // SRF 8
AIR
NXT  // SRF 9
AIR
WV 0.54607 0.48613 0.65627 0.58756 0.43583 0.40466
WW 1.0 1.0 1.0 1.0 1.0 1.0
END  9
SDSA On
OPDF 1.0e-32
OPDS 1.0e-32
OPST 1.0e-32
VAR NEW
V 1 1 0 CV 0.0 0.0 1.0 6.2893081761e-07
V 2 2 0 CV 0.0 0.0 1.0 6.2893081761e-07
V 3 3 0 CV 0.0 0.0 1.0 6.2893081761e-07
V 4 4 0 CV 0.0 0.0 1.0 6.2893081761e-07
END
for those that didn't see the design.
Bob May
bobmay at nethere.com
http: slash /nav.to slash bobmay
http: slash /bobmay dot astronomy.net
Replace the obvious words with the proper character.

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