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C e l e b r a t i n g__1 7__Y e a r s__I n__B u s i n
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Dream creates world-class, highly
engineered lightweight mirrors with solid mirror-level Mid-Spatial Frequency
(MSF) errors, validating Dream's engineering,
expertise and paradigm-shifting high-performance lightweight
mirrors. |
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High Performance Doesn't
Fear Change. It Defies The Status Quo.™ |
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Dream specializes in the
optimized design, engineering and in-house production of its
disruptive technology, bubble-free zeroDELTA™ -lightweight
glass mirror blanks (20mm to 1.15m), as well as finishing of lightweight optical
mirrors. Dream's level of engineering,
innovation and process control offers our customers an enabling
technology with unparalleled performance, including low MSF and low
surface roughness.
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zeroDELTA™ aspheres have been
finished to L/125 RMS surface, 2Å RMS surface roughness
and radii as close as 0.002% of nominal. They can be finished
to a super-polish (1Å or less), which is limited by the
process & optical metrology, not the zeroDELTA™ lightweight mirror. |
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Dream
also produces athermal carbon fiber mirror mounts & cutting-edge,
athermal full
optical assemblies & instruments. |
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8.2 lb independent test head (right)
allows testing of optics at different angles and in the presence
of vibrations. A modern, enabling technology by itself. |
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635mm zeroDELTA™ engineered lightweight
mirror & 4D Technology PhaseCam
6000
dynamic interferometer inside Dream. |
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"Your
company does phenomenal work. There is a lot of thought and heart
that goes into your products. Dream's engineering sets their
lightweight mirrors apart from competitors. Your engineering
goes beyond the lightweight aspect. You focus on actual performance!" |
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- Ted Kamprath |
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40 years in professional
optics, using everything from |
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$1.5m test rooms
to 144" Continuous Polishers (CP). |
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2019/2020 - Dream is growing, adding two |
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new members inside
Dream; Nic & Josh |
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Adding bandwidth in composites,
optics & CAD/CAM/CNC |
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Dream is proud to
be chosen for |
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a wide range of projects
in |
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2019-2020 |
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* An athermal, alignment telescope for the world's highest resolution
telescope array. |
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* A critical fold mirror and dedicated, athermal mirror mount
for the world's largest solar telescope. |
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* Two custom 400mm f3.75 dual-band IR Dream telescopes for daytime
LEO (Low-Earth Orbit) for USAF. |
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* Design & replace upper structure, including spider assembly
& secondary mirror mount, as well as refinishing the 0.5m
secondary mirror for 1.275m telescope; swapping out metal with
Dream's CF & CFSC™ technologies. |
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* Lightweight fast steering mirrors with dedicated, athermal
carbon fiber mirror mounts. |
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All projects above use Dream's core technologies;
carbon fiber and highly optimized, lightweight mirrors. |
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Dream successfully delivers custom
~250mm, f1.0 perforated zeroDELTA™
lightweight substrate for aerospace prime. |
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This is the fastest mirror Dream
has produced to date, beating out a ~400mm, f1.376 Dream designed
and fully finished in-house previously. |
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During the coldest weather in at least
25 years, Dream finishes two more zeroDELTA™
mirrors in its extremely stable
polishing & testing room. Click the image to see Dream's
amazingly stable test environment. |
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Dream casts and fully
processes a bubble-free f1.376 mirror for an Adaptive
Optics project. The mirror is six
times lower in areal density than
Hubble's M1, but is finished with conventional polishing techniques. |
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zeroDELTA™ enables our customers
through
SWaP-C; Size, Weight
& Power, Cost: |
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* Elimination of figure-distortion caused
by internal temperature gradients, |
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* Maintain today's tight optical alignment
tolerances through low mass |
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1/3 to 1/6
the mass of solid mirrors. |
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* Faster slews,
better tracking performance and higher throughput due to |
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lower inertia
of the total instrument. |
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the use of
expensive finishing techniques and/or technologies. |
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All of the above
benefits at 5-10x lower cost than pocket-milled zero-expansion
mirrors. |
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QED displays Dream mirror at SPIE's Photonics
West |
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0.4m CA Dream instrument
achieves sub arc-second raw, single-frame image performance,
illustrating the value of 25+ |
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years of devotion by Dream's
founder to understand all aspects of instrument performance;
optical, mechanical and thermal. |
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Lightweight Cassegrain optical
sets can be finished to CC, D-K or R-C. |
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Click above for white papers page. |
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"We shall look back and see how inefficient,
how primitive it was to work with thick, solid mirrors, obsolete
mirror-curves, ..." |
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- George Willis
Ritchey 1928 |
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JRASC,
Vol. XXII, No. 9, November 1928. |
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Optifab: Rochester, NY. RJ in the
Schott booth with two Dream zeroDELTA™ mirror blanks (left)
and Don in 4D Technologies booth with the NanoCam Sq on top of
a 400mm Dream zeroDELTA™ mirror; 9.5 lbs (right). |
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Dream's
zeroDELTA™ .mirrors and CF &
CFSC™ structures are enabling the future of modern ground,
air and space with next generation performance. |
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From concave to convex to plano ellipses,
small to large, fully generated mirror blanks to finished &
coated zeroDELTA™
high-performance mirrors in dedicated athermal carbon fiber mirrors
mounts. Contact Dream. |
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European manufacturer receives Dream
25cm zeroDELTA™
fully generated mirror blank. |
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"Can I
say: holy cow!! This looks awesome!!" |
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Q
u a l i t y |
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S
t a r t s |
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A
t |
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T
h e |
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S
u b s t r a t e |
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16" f2 IR carbon fiber telescope with gold-coated
lightweight mirrors. |
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Dream mirror finished to higher
quality level than Hubble Space Telescope's M2 |
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This hyperboloidal convex secondary mirror (M2) was
part of a Dream 24" Ritchey-Chrétien telescope for
a NASA project. |
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Click here for additional information. |
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Dream delivers a fast & demanding 300mm CA f3 (system f-ratio)
finished & coated Ritchey-Chrétien optical set. |
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Designing,
Engineering & Using Lightweight Mirrors Since 2003 |
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