Improved Coatings For Large Astronomical Telescope Mirrors

H. A. Macleod; D. Y. Song

doi:10.1117/12.948151

22 October 1985 Improved Coatings For Large Astronomical Telescope Mirrors

H. A. Macleod, D. Y. Song

Proceedings Volume 0542, Optical Fabrication & Testing Workshop; (1985) https://doi.org/10.1117/12.948151
Event: 1985 Albuquerque Conferences on Optics, 1985, Albuquerque, United States

Abstract

Coatings with lower emissivity than the traditional aluminum coating are required for large telescope mirrors. Multilayer coatings consisting of silver with ultraviolet boosting overlayers and copper underlayers for increased environmental resistance have been proposed. These multilayers are examined briefly, and some of their implications for the coating of large astronomical telescope mirrors are considered. A major problem is that they demand much greater uniformity than simple metallizing. A possible coating plant layout is suggested.

Citation Download Citation

H. A. Macleod and D. Y. Song "Improved Coatings For Large Astronomical Telescope Mirrors", Proc. SPIE 0542, Optical Fabrication & Testing Workshop, (22 October 1985); https://doi.org/10.1117/12.948151

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