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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.

High Performance Doesn't Fear Change. It Defies The Status Quo.

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.

zeroDELTAaspheres 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 zeroDELTAlightweight mirror.

Dream also produces athermal carbon fiber mirror mounts & cutting-edge, athermal full optical assemblies & instruments.

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.

635mm zeroDELTAengineered lightweight mirror & 4D Technology PhaseCam 6000 dynamic interferometer inside Dream.

"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!"

- Ted Kamprath

40 years in professional optics, using everything from

$1.5m test rooms to 144" Continuous Polishers (CP).

2019/2020 - Dream is growing, adding two

new members inside Dream; Nic & Josh

Adding bandwidth in composites, optics & CAD/CAM/CNC

Dream is proud to be chosen for

a wide range of projects in


* An athermal, alignment telescope for the world's highest resolution telescope array.
* A critical fold mirror and dedicated, athermal mirror mount for the world's largest solar telescope.
* Two custom 400mm f3.75 dual-band IR Dream telescopes for daytime LEO (Low-Earth Orbit) for USAF.
* 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.
* Lightweight fast steering mirrors with dedicated, athermal carbon fiber mirror mounts. 
All projects above use Dream's core technologies; carbon fiber and highly optimized, lightweight mirrors.

Dream successfully delivers custom ~250mm, f1.0 perforated zeroDELTA lightweight substrate for aerospace prime.

This is the fastest mirror Dream has produced to date, beating out a ~400mm, f1.376 Dream designed and fully finished in-house previously.

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.

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.

zeroDELTA enables our customers through SWaP-C; Size, Weight & Power, Cost:

* Elimination of quality-robbing boundary-layer mirror seeing,

* Elimination of figure-distortion caused by internal temperature gradients,
making zeroDELTA mirrors process & finish to zero-expansion levels.

* Maintain today's tight optical alignment tolerances through low mass
1/3 to 1/6 the mass of solid mirrors.

* Faster slews, better tracking performance and higher throughput due to
lower inertia of the total instrument.

* Dream's level of engineering & mechanical performance does not force
the use of expensive finishing techniques and/or technologies.

All of the above benefits at 5-10x lower cost than pocket-milled zero-expansion mirrors.


QED displays Dream mirror at SPIE's Photonics West

0.4m CA Dream instrument achieves sub arc-second raw, single-frame image performance, illustrating the value of 25+

years of devotion by Dream's founder to understand all aspects of instrument performance; optical, mechanical and thermal.

Lightweight Cassegrain optical sets can be finished to CC, D-K or R-C.

 Click above for white papers page.

"We shall look back and see how inefficient, how primitive it was to work with thick, solid mirrors, obsolete mirror-curves, ..."

- George Willis Ritchey 1928

JRASC, Vol. XXII, No. 9, November 1928.

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).

Dream's zeroDELTA™ .mirrors and CF & CFSC™ structures are enabling the future of modern ground, air and space with next generation performance.

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.


European manufacturer receives Dream 25cm zeroDELTAfully generated mirror blank.

"Can I say: holy cow!! This looks awesome!!"

Q u a l i t y

S t a r t s

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16" f2 IR carbon fiber telescope with gold-coated lightweight mirrors.

Dream mirror finished to higher quality level than Hubble Space Telescope's M2

This hyperboloidal convex secondary mirror (M2) was part of a Dream 24" Ritchey-Chrétien telescope for a NASA project.

Click here for additional information.


Dream delivers a fast & demanding 300mm CA f3 (system f-ratio) finished & coated Ritchey-Chrétien optical set.



Designing, Engineering & Using Lightweight Mirrors Since 2003

Copyright © 2003 - 2020 Dream, All Rights Reserved.

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