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QED, MRF, metrology, cellular mirror, cellular
blank, open-back cellular, lightweight optics, lightweight mirror,
lightweighting, ribbed mirror |
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Understand
The Benefits Of Dream's Engineered Lightweight Mirrors |
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The image to the right shows
the back of an engineered 0.4m (16") round primary mirror
produced in-house at Dream. The following page shows some of the extensive FEA that was done
on this design prior to casting the first article. 18 separate
iterations were run on one of two machines that each have 32Gb
of RAM.
Dream's engineered
substrates achieve much shorter Thermal
Time Constants (TTC) compared to even an extremely
thin monolithic substrate. The TTC
of a 1.2" thick 16" monolithic (13-1/3:1 aspect ratio)is
36 times slower than Dream's engineered cellular optic. The TTC
of a 2.7" thick 16" (6:1, full-thickness) is 178 times
slower than Dream's mirror.
For a detailed look at the thermal
benefits of our engineered cellular blanks, please click here. |
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Our engineered lightweight mirror
substrates can be used both perforated, like a conventional Cassegrain
employs, or non-perforated. They can also be produced for anything
from flat to fast, deeply curving f-ratios; plano to f0.5. We
customize each blank so the ribs match your ROC, thus making
the face an even thickness across the entire aperture. |
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Click below to see the dedicated
packing Dream provides for this engineered cellular blank. |
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Dream Cellular, LLC can also
engineer and produce other shapes, in-house. Click on the image
above to see ellipse examples. |
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Above is a 16" Ritchey-Chretién
optical set for one of Dream's OEM clients. Click on either image
to see other photos and the custom packing used for optical sets
like this.
Contact
Dream Cellular, LLC to discuss your project requirements. |
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Contact:
shane @ dreamcellularllc.com |
