Accession Number:

ADA339317

Title:

Vertically Fused Facesheet Performance

Descriptive Note:

Final rept. 11 Jun 81-9 Apr 82

Corporate Author:

LITTON INDUSTRIES INC LEXINGTON MA ITEK OPTICAL SYSTEMS

Personal Author(s):

Report Date:

1982-04-01

Pagination or Media Count:

63.0

Abstract:

This study evaluates the performance of vertically fused face sheet mirrors used in adaptive optical systems that are subjected to high thermal irradiance. A one meter diameter by 20 mm thick segmented, low expansion glass face sheet was fabricated from different boules of glass and characterized for material properties. The study includes thermal irradiation testing using interferometric measurements and detailed analytical modeling.

Subject Categories:

  • Ceramics, Refractories and Glass
  • Optics
  • Thermodynamics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE