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Dream spent three months going through design iterations
and FEA modeling for the new 16.375" (physical outer diameter)
cellular primary mirror. This cellular mirror replaces the original
monolithic primary. |
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This is part of the all-cellular mirror 16" Dream
Astrograph. |
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To the right is the displacements of this cellular
primary during polishing. |
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The maximum displacement is 10nm, which is 0.036 P-V
(1/27.5th wave) at the wave front (1/54th
wave at the surface). |
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The mirror was modeled for polishing displacements
(movements that occur while the optician is working on the mirror)
and for different orientations for gravity displacements (mimicing
what it would see in the telescope/actual use). |
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