White Papers

phone: (610) 360-7874

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

Moon used to quantify

telescope performance


Solar eclipse taken from Dream; August 21st, 2017, 2:31pm. 


Dream specializes in the optimized design, engineering and in-house production of bubble-free lightweight mirror blanks, as well as finishing of lightweight optical mirrors and optical sets.

Dream's level of engineering, innovation and process control offers our customers the latest in unparalleled performance, including low MSF.

Dream's lightweight optical mirrors offer:
* Elimination of quality-robbing mirror seeing, which is a centuries old problem with solid mirrors.
* Maintain tighter optical alignment tolerances that are a must for modern optical designs. This produces higher system performance because Dream's mirrors are 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.
* Less down time because their lower mass means faster removal and re-installation after recoating.


Solid glass mirror technology has changed little over 166 years. Dream's state of the art mirrors deal directly with old tech's shortcomings.

"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
From the book "Mirror Mirror" by Mark Pendergrast

See a Dream engineered lightweight mirror in person:
- .April, SPIE DCS, booth 822
- .August 8-10, SPIE Optics and Photonics, booth 8548
- September 19-20, OSA Frontiers in Optics, booth 314
- October 17-19, SPIE Optifab, booth 212


Q u a l i t y

S t a r t s

A t

T h e

S u b s t r a t e

Click below to see Zygo data of a finished plano elliptical Dream mirror.

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 Ritchey-Chrétien optical set.

Dream directly 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.





QED Optics displays Dream mirror at SPIE's Photonics West

Designing, Engineering & Using Lightweight Mirrors Since 2003

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

Read the article about a Dream 9.5 pound engineered, lightweight 16" f1.376 mirror used for a cutting-edge Adaptive Optics project.

Copyright © 2003 - 2017 Dream, All Rights Reserved.

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