Accession Number : ADD003344

Title :   High Reflectance Third Surface Mirror.

Descriptive Note : Patent Application,

Corporate Author : DEPARTMENT OF THE AIR FORCE WASHINGTON D C

Personal Author(s) : Champetier,Robert J

Report Date : 29 Sep 1976

Pagination or Media Count : 14

Abstract : In the patent application the total solar thermal reflectance of spacecraft protective mirrors is improved by providing the back surface of a silica platelet with a first silver film 400 to 600 A thick and a second aluminum film at least 700 A thick. The mirror exhibits the reflectance of silver in the red band and the average reflectance of silver and aluminum in the violet band while providing hardness to nuclear radiation.

Descriptors :   *Mirrors, *Spacecraft components, *Protective coatings, *Patent applications, Silicon dioxide, Silver, Aluminum, Substrates, Radiation effects, Solar radiation, Nuclear radiation protection

Subject Categories : Optics
      Unmanned Spacecraft

Distribution Statement : APPROVED FOR PUBLIC RELEASE