Beryllium galvanometer mirrors

Harold M. Weissman

doi:10.1117/12.46517

1 September 1991 Beryllium galvanometer mirrors

Harold M. Weissman

Proceedings Volume 1485, Reflective and Refractive Optical Materials for Earth and Space Applications; (1991) https://doi.org/10.1117/12.46517
Event: Orlando '91, 1991, Orlando, FL, United States

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.

Citation Download Citation

Harold M. Weissman "Beryllium galvanometer mirrors", Proc. SPIE 1485, Reflective and Refractive Optical Materials for Earth and Space Applications, (1 September 1991); https://doi.org/10.1117/12.46517

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available