Abstract

We have tested several cast Tenzaloy aluminum mirrors, using standard optical test procedures. Although our tests are not extensive, we have established that Tenzaloy mirrors stable within one or two waves (5000 Å), or less, can and have been made. This result is in contrast to that which has been obtained for mirrors cast from 356-T6 alloy, which are not satisfactorily stable.

© 1971 Optical Society of America

A 40-cm Welded-Segment Lightweight Aluminum Alloy Telescope Mirror

Fred F. Forbes
Appl. Opt. 8(7) 1361-1363 (1969)

Effect of Microstructure on the Dimensional Stability of Cast Aluminum Mirror Substrates

E. Benn and W. W. Walker
Appl. Opt. 12(5) 976-978 (1973)

High Precision 10-cm Aperture Penta and Roof-Penta Mirror Assemblies

P. R. Yoder
Appl. Opt. 10(10) 2231-2234 (1971)

Orthogonal Mirror Telescopes for X-ray Astronomy

L. P. VanSpeybroeck, R. C. Chase, and T. F. Zehnpfennig
Appl. Opt. 10(4) 945-949 (1971)

Third Order Aberrations in Cassegrain-Type Telescopes and Coma Correction in Servo-Stabilized Images

M. Bottema and R. A. Woodruff
Appl. Opt. 10(2) 300-303 (1971)