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Proceedings Paper

Beryllium galvanometer mirrors
Author(s): Harold M. Weissman
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Paper Abstract

The present galvanometer mirrors may be manufactured by four different methods: (1) polishing of bare beryllium, (2) electroless plating of Ni, (3) polishing or single diamond-point of electroplated Ni, and (4) thin-film epoxy replication. The IR reflectivity of beryllium in the 3-14 microns range is sufficiently high to obviate additional mirror coatings, while electroless Ni and epoxy-replicated mirrors require a subsequent coating to achieve the requisite reflectivities. Nevertheless, there are galvanometer configurations that do not lend themselves to polishing. Replication is the lowest-cost mirror-fabrication method.

Paper Details

Date Published: 1 September 1991
PDF: 7 pages
Proc. SPIE 1485, Reflective and Refractive Optical Materials for Earth and Space Applications, (1 September 1991); doi: 10.1117/12.46517
Show Author Affiliations
Harold M. Weissman, Opticon Corp. (United States)

Published in SPIE Proceedings Vol. 1485:
Reflective and Refractive Optical Materials for Earth and Space Applications
Max J. Riedl; Robert R. Hale; Thomas B. Parsonage, Editor(s)

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