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"I went
to bed at about 10PM and I let it run all night without focusing.
I blinked through the images and focus did not
change. Also, I did all of my other images by letting it run
through the night without focusing."
- Mel Helm, Sierra
Remote Observatories, 16" f3.75
Dream Astrograph owner. |
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32"
f2.4 Dream Hypergraph
The
only athermal
instruments
in the world that use such a high percentage of carbon fiber (95% of the weight of the telescope
structures without optics)
and mates those low-mass,
high stiffness athermal structures with highly engineered, lightweight
zeroDELTA™
mirrors.
The entire system is optimized from the ground up for cutting
edge installed performance, eliminating countless
areas of performance
loss.
These are truly modern instruments with unrivaled consistent, long-term installed
performance
and the lowest possible maintenance. |
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Click either photo (left or
right) to watch a video about the interferometry technology developed
for JWST and funded by NASA. Dream uses this technology to finish
its world-class
lightweight mirrors in house. |
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The zeroDELTA™ mirrors are tested in their final
athermal carbon fiber mirror mounts, in Dream's 5m vertical test
tower. |
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OTA diameter - OD |
length |
focal length |
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38" |
72" |
1955mm - f2.4 |
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space domain awareness |
satellite debris tracking |
815mm CA |
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space domain awareness |
space situational awareness |
NASA NEO search & recovery |
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secondary |
weight - pounds |
single unit pricing |
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12.8" |
<225 |
contact Dream |
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IMX411 151Mp CMOS detector: 3.76µm pixels, 14192 x
10640, 66.7mm image circle. |
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Field Of View: 70.2' x 93.6' (1.825 deg²) |
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Arc-seconds/pixel: 0.4 |
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These dedicated optical systems are optimized
for 100% illumination of the given detector. The Dream Hypergraphs
come with 90mm of back focus. |
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The latest CMOS detectors have much, much smaller
pixels (3.76µm versus the typical 9µm pixels of the
previous generation of detectors). Dream and our existing customers
don't need to upgrade anything. Our optical instruments have
always achieved higher performance and we've always designed
closer to the diffraction limit. In 2020 alone we designed more
than a half a dozen optical systems ranging from 16" to
25", with f-ratios from f2.95 to as fast as f1.35 and for
sensors from as small as 24mm x 36mm to as large as 95mm x 95mm. |
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Roughly 90% of what Dream designs
& produces is custom. Contact us to determine whether your
project can use an existing design, a slightly modified existing
design or requires something completely custom. We've been designing
fast optical systems since 2003. Our lead optical engineer has
four decades of experience with fast systems. |
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pricing, availability and
specifications subject to change without notice |
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Copyright
© 2003-2023 Dream All Rights Reserved. |
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space domain awareness (SDA),
space Situational Awareness (SSA), Ball Aerospace, Lockheed martin,
Boeing space, Airbus defence & space, planewave instruments,
NASA JPL, NASA goddard, lightweight telescope, lightweight precision
optics, lightweight precision mirrors |
