The Boeing Company

Kent Optronics, Inc.

Jie Yang

Le Li

Haiping Yu

Yongxin Tang

Jiangbin Zhao

Mark Stewart Wilenski

John Ralph Hull

Mark Joseph Clemen, Jr

Alan Frank Stewart

Donald V Drouin, Jr

George Albert Perry

Philip E Johnson

Shenggang Wang

Rick L McGann

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.

Window method and apparatus for protection from bright light sources

A sensing device may include a cholesteric crystal device including two optically transparent substrates; a liquid crystal having portions adapted for producing a plurality of optical states, said liquid crystal being arranged between the two optically transparent substrates; an optical sensor for changing optical states of respective portions of said liquid crystal to produce a range of respective optical states including all optical states produced by said liquid crystal ranging from one state to any combination of broadband reflection, tunable narrow band reflection, light scattering, and transparency in accordance with an amount of voltage applied across said cholesteric crystal device for changing optical states.

Displays and sensors integrated with multi-state cholesteric liquid crystal devices

Growing community of inventors

Fishkill, NY, United States of America

Jie Yang