US 11,698,477 B2
Visible quality additive manufactured aluminum mirror finishing
John P. Schaefer, Plano, TX (US); and Paul Gasloli, Richardson, TX (US)
Assigned to RAYTHEON COMPANY, Waltham, MA (US)
Filed by Raytheon Company, Waltham, MA (US)
Filed on Jul. 15, 2020, as Appl. No. 16/929,177.
Prior Publication US 2022/0019002 A1, Jan. 20, 2022
Int. Cl. G02B 5/08 (2006.01); B33Y 70/10 (2020.01); B33Y 80/00 (2015.01); B32B 15/20 (2006.01); B32B 18/00 (2006.01); B32B 7/023 (2019.01); B32B 7/12 (2006.01); B33Y 40/20 (2020.01); B32B 15/01 (2006.01); C22C 21/02 (2006.01); B32B 38/00 (2006.01)
CPC G02B 5/0808 (2013.01) [B32B 7/023 (2019.01); B32B 7/12 (2013.01); B32B 15/017 (2013.01); B32B 15/20 (2013.01); B32B 18/00 (2013.01); B33Y 40/20 (2020.01); B33Y 70/10 (2020.01); B33Y 80/00 (2014.12); C22C 21/02 (2013.01); B32B 2038/0064 (2013.01); B32B 2307/416 (2013.01); B32B 2307/536 (2013.01); B32B 2310/08 (2013.01); B32B 2551/08 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A mirrored apparatus comprising:
a substrate having a surface and comprising an additive manufactured aluminum and about 2 to about 3 wt. % silicon;
a binding layer arranged on the surface of the substrate, wherein the binding layer is titanium, nickel, nickel chromium, chromium, gold, aluminum, molybdenum, germanium, zinc sulfide, or any combination thereof;
a finish layer arranged on the binding layer, the finish layer having a polished surface opposite the substrate; and
a reflective layer arranged on the polished surface of the finish layer.