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:
Dec. 05, 2017
Filed:
Feb. 29, 2016
The Boeing Company, Chicago, IL (US);
Mark J. Clemen, Jr., Southworth, WA (US);
John R. Hull, Sammamish, WA (US);
Philip E. Johnson, Auburn, WA (US);
Rick L. McGann, Kent, WA (US);
George A. Perry, Federal Way, WA (US);
Alan F. Stewart, Seattle, WA (US);
Mark S. Wilenski, Mercer Island, WA (US);
Donald V. Drouin, Jr., O'Fallon, IL (US);
Le Li, Hopewell Junction, NY (US);
Yongxin Tang, Poughkeepsie, NY (US);
Haiping Yu, Hopewell Junction, NY (US);
Jiangbin Zhao, Fishkill, NY (US);
Jie Yang, Fishkill, NY (US);
Shenggang Wang, Fishkill, NY (US);
The Boeing Company, Chicago, IL (US);
Abstract
According to an embodiment, an electrically switchable mirror includes: a first electrically switchable layer of cholesteric liquid crystal material, the first electrically switchable layer having a first state in which right-handed circularly polarized light incident thereon is reflected and left-handed circularly polarized light incident thereon is transmitted and a second state wherein right-handed and left-handed circularly polarized light incident thereon are transmitted; a second electrically switchable layer of cholesteric liquid crystal material, the second electrically switchable layer having a first state in which left-handed circularly polarized light incident thereon is reflected and right-handed circularly polarized light incident thereon is transmitted and a second state wherein right-handed and left-handed circularly polarized light incident thereon are transmitted; and a first electrically switchable wave plate disposed between the first and second electrically switchable layers.