Table A.2
Prescription of the CRISP2 wideband system.
| No. | Radius (mm) | Thickness (mm) | Lens dia (mm) | Beam dia (mm) | Glass | Label |
|---|---|---|---|---|---|---|
| 1 | 155.50 | F1 | ||||
| 2 | 111.91 | 4 | 50 | N-LASF45 | L1 | |
| 3 | 51.02 | 13 | 50 | N-PSK53A | L1 | |
| 4 | −175.5 | 145.89 | 50 | L1 | ||
| 5 | 59.08 | 3.15* | P1/P2 | |||
| 6 | 91.00 | 3 | 26 | S-SF57 | L4 | |
| 7 | 30.26 | 7 | 26 | N-LAF2 | L4 | |
| 8 | −71.24 | 1 | 26 | L4 | ||
| 9 | 25 | N-BK7 | PDBS | |||
| 10 | 38.65 | |||||
| 11 | F3 |
Notes. Labelling is made to agree with that of CRISP2 FPI system, the prescription of which is shown in Table A. F1 and F3 are focal planes, L1 and L4 are cemented doublet lenses that are duplicates of the corresponding lenses in the CRISP2 FPI system, P1 is a pupil plane, and PDBS is the phase diversity beam splitter. *This is the pupil diameter; the pupil stop should be about 10% larger. The total length from F1 to F3 is 452 mm. The distance from the first surface of L1 to the last surface of L4 is 233 mm.
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