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PULM Lab |
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Schematic of Electroforming Laboratory | |
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| Mirror Specifications | |
| The large aperture electroformed mirrors will meet these specifications: | |
| Mirror size:.............................................. 0.5 to 1 m (20 to 40 inches) diameter | |
| Shape:.............................................. 1.9 to 3.8 m (75 to 150 inch) radius sphere | |
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Figure:............................................
0.5 waves per 15 cm (6 inches) |
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| Surface finish: ............................... < 15 Angstroms | |
| Nominal mirror thickness ............ 1.4 mm (55 mils) | |
| Thickness variation........................ < 3% | |
| Composition: ................................ 77% Ni-23% Co (nominal) | |
| Weight ........................................... < 0.5 to 3 kg/m2 | |
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Images: |
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