The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 21, 2017
Filed:
Jul. 25, 2011
Applicants:
John P. Schaefer, Plano, TX (US);
Clay E. Towery, Plano, TX (US);
Inventors:
John P. Schaefer, Plano, TX (US);
Clay E. Towery, Plano, TX (US);
Assignee:
RAYTHEON COMPANY, Waltham, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 5/08 (2006.01); B24B 13/00 (2006.01); B24B 1/00 (2006.01);
U.S. Cl.
CPC ...
G02B 5/085 (2013.01); B24B 1/00 (2013.01); B24B 13/0018 (2013.01); G02B 5/08 (2013.01);
Abstract
Low density mirrors for optical assemblies and methods of manufacture thereof. In one example, a reflective mirror is formed of a magnesium or magnesium alloy substrate that is single point diamond turned to provide a reflective surface. The magnesium or magnesium alloy substrate is compatible with thin-film finishing processes and/or magnetorheological finishing which may be applied to improve a surface finish of the mirror.