Development of lightweight, glass mirror segments for the large deoloyable reflector

R. K. Melugin, J. H. Miller, J. R.P. Angel, P. A.A. Wangsness, R. E. Parks, D. A. Ketelsen

Research output: Contribution to journalArticlepeer-review

3 Scopus citations


Accomplishments in the development of lightweight, honeycomb-core, sandwich mirror blanks made of boro- silicate and high-silica glasses at the University of Arizona for the Large Deployable Reflector program are described. In this paper, work spanning the last 2 years is reported, highlighting a new mirror blank fabrication technique that permits the fabrication of the honeycomb core integrally with the front and back plates of the blank in a single furnace cycle. Two types of mirror blanks made by this method, an off-axis, aspheric segment and a smaller Vycor circular piece, are described. The fabrication of two off-axis, aspheric mirror segments is also described. Cryogenic test results are included on the test of a 38-cm diameter, lightweight, honey-comb core, sandwich mirror made of Pyrex.

Original languageEnglish (US)
Pages (from-to)101-114
Number of pages14
JournalProceedings of SPIE - The International Society for Optical Engineering
StatePublished - Feb 21 1986

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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