US 12,066,591 B2
Visible quality mirror finishing
John P. Schaefer, Plano, TX (US); Martin Mather, Addison, 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. 16/929,174.
Prior Publication US 2022/0019001 A1, Jan. 20, 2022
Int. Cl. G02B 5/08 (2006.01); B32B 15/00 (2006.01); B32B 18/00 (2006.01); B32B 38/00 (2006.01); C04B 41/00 (2006.01); C04B 41/52 (2006.01); C04B 41/90 (2006.01)
CPC G02B 5/0808 (2013.01) [B32B 15/00 (2013.01); B32B 18/00 (2013.01); B32B 38/0012 (2013.01); C04B 41/009 (2013.01); C04B 41/52 (2013.01); C04B 41/90 (2013.01); B32B 2038/0064 (2013.01); B32B 2310/08 (2013.01); B32B 2315/02 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A mirrored apparatus comprising:
a non-diamond point turnable substrate comprising a non-metal inorganic material that is non-diamond turnable;
a finish layer arranged on the surface of the substrate, the finish layer having a polished surface opposite the substrate; and
a reflective layer arranged on the polished surface of the finish layer.