White Papers

(610) 360-7874 info0@0dreamscopes.com

C e l e b r a t i n g__1 5__Y e a r s__I n__B u s i n e s s

Dream specializes in the optimized design, engineering and in-house production of its bubble-free zeroDELTA-lightweight mirror blanks, as well as finishing of lightweight optical mirrors & sets. Dream's level of engineering, innovation and process control offers our customers the latest in modern, unparalleled performance, including low MSF and low surface roughness.

Dream also produces athermal mirror mounts and cutting-edge athermal full telescopes.

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 amazing videos.



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

zeroDELTA enables our customers through SWaP; Size, Weight & Performance:
* Elimination of quality-robbing boundary-layer mirror seeing, which is a centuries old problem with solid mirrors.
* Elimination of figure-distortion caused by internal temperature gradients, making zeroDELTA mirrors process & finish to the same levels as zero-expansion mirrors.
* Maintain tight optical alignment tolerances that come with today's latest optical designs - 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.
* Dream's level of engineering and therefore the mechanical performance of the mirrors does not force the use of expensive finishing techniques and/or technologies.
* All of the above at 6-10x lower cost than pocket-milled zero-expansion mirrors.

Click above for white papers page.

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

Moon used to quantify

telescope performance

"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 mid-October 2017. 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).

Solid glass mirror technology has changed little in 166 years. Dream's zeroDELTA.mirrors provide a modern, superior alternative.

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, booths 212 & 701

European manufacturer receives Dream 10" f3 zeroDELTAmirror blank.

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

November 2017 

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

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 finished & coated Ritchey-Chrétien optical set.

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.



QED Optics displays Dream mirror at SPIE's Photonics West

Designing, Engineering & Using Lightweight Mirrors Since 2003

Copyright © 2003 - 2018 Dream, All Rights Reserved.

Print Through
ghtweight optical mirrors, lightweight telescope mirrors, lightweight parabolic mirrors, lightweight parabola, lightweight sphere, lightweight Cassegrain optical set, lightweight ritchey-chretien optical set, honeycomb mirrors, honeycomb cellular mirror, lightweighted mirror, cellular optical mirror