Share Email Print

Proceedings Paper

Characterization of AlBeMet 162 as an optical substrate material
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

The use and manufacturing of AlBeMet 162 material as an optical substrate for head mirrors, night vision systems and fire control optics is discussed. The paper discusses the validation AlBeMet 162's thermal stability over the military environmental temperature range of -40F to +140F. The paper will discuss the manufacturing processing to yield dimensional stable optics in AlBeMet material. It will also discuss the results of interferometric testing on 150 mm diameter flats produced by 3 separate optical fabrication companies. Demonstrating the ability of the process and material to produce optical mirrors over temperature with thermal distortions of less than 0.25 wavelengths P-V. The paper will show interfermetrically that AlBeMet and nickel have an excellent coefficient of thermal expansion match over the temperature range of interest, so that there is no bi-metallic issue or distortion due to the electroless nickel. The paper will also discuss the continuing characterization program with the initial results from testing a light weighted substrates with a spherical surface.

Paper Details

Date Published: 12 December 2003
PDF: 7 pages
Proc. SPIE 5179, Optical Materials and Structures Technologies, (12 December 2003); doi: 10.1117/12.506539
Show Author Affiliations
James E. Heber, Brush Wellman, Inc. (United States)
Thomas B. Parsonage, Brush Wellman, Inc. (United States)

Published in SPIE Proceedings Vol. 5179:
Optical Materials and Structures Technologies
William A. Goodman, Editor(s)

© SPIE. Terms of Use
Back to Top