Understand The Benefits Of Dream's Engineered Lightweight Mirrors

D r e a m


The chart to the left shows the internal temperature differences between 0.7m mirror substrates as ambient temperature falls.

The chart illustrates the substrates cooling during a 4C/hour drop in ambient temperature. All start at equilibrium at 20C (upper left of the chart).

The Dream engineered substrate stays much closer to ambient temperatures than even an extremely thin monolithic substrate, including those made from Zerodur and Astrosital.

These comparisons did not encompass forced ventilation. The Dream 0.7m substrate has 4 times the surface area of the 1.875" thick monolithic, yet the Dream substrate is 2 times stiffer than the monolithic.

After the web page has downloaded all three animations below, hit the REFRESH button on your browser to synchronize the animations to each other. At the end of the animations it will pause for three seconds before looping again.
 cellular optics, cellular mirrors, cellular substrate


28 inch Full Thickness Monolithic Mirror: 4.67" thick

28 inch Thin Monolithic Mirror: 1.875" thick

28 inch Dream Cellular Mirror: 4.0" thick
lightweight optics, lightweight cellular mirrors, lightweight mirrors

Deep blue is the closest to ambient temperature. Note how the Dream substrate reaches these blues far sooner than the monolithic substrates. 

Click on the image to the left to see an enlarged view. 

Click on the image to the right to see the 5" minor axis secondary mirror for this OEM client.

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