Kent Optronics, Inc.

Other

The Boeing Company

Haiping Yu

Le Li

Yongxin Tang

Jie Yang

Shenggang Wang

Jiangbin Zhao

Ben Tang

Mark Stewart Wilenski

John Ralph Hull

Mark Joseph Clemen, Jr

Alan Frank Stewart

Aaron Boyd Cole

Donald V Drouin, Jr

George Albert Perry

Philip E Johnson

Zhan Chen

Fang Du

Lei Guo

Rick L McGann

Jianhui Li

Hejun Ma

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

An optical viewing apparatus may include an objective lens assembly and an one eye piece assembly connected to the objective lens assembly. The optical viewing apparatus may exhibit a field of view in the range of between 40&#xb0; and, preferably beyond 80&#xb0;, and an eye-relief of at least 15 mm, and the optical viewing apparatus may exhibit a foveated image for at least one field of view (FOV) wherein the optical on-axis resolution decays toward the periphery of the field of view.

Wide field of view foveal night vision systems

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

An m&#xd7;n fan out device for receiving at least m=2 laser beams of different wavelengths and dividing the power of each laser beam into at least two other laser beams directed to at least one of n exit ports of the fan out device is disclosed.

Multi-beam multi-aperture optical beam steering module

Electro-optically operated transmitters containing a wave guide liquid crystal beam steering device in series of fine beam steering devices as well as electrically switchable mirror are disclosed. The wave guide beam steering device is constructed on a planar lightwave circuit that contains a plurality of liquid crystal switching elements intersecting a plurality of optical wave guides and one main wave guide that has a curvature for light propagation. The transceiver is capable of continuously steering multiple beams of light into separate independent directions with a field-of-regard close to 4&#x3c0;. The resulted optical transmitter device is motionless, polarization sensitive or insensitive, stable within the operational spectral region, and stable versus temperature. When an optical receiver is integrated, the transmitters become transceivers. The invention also includes the methods for manufacturing the wave guide beam steering device.

Wide steering-range motionless optical beam steering device, and methods of manufacture

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Hopewell Junction, NY, United States of America

Haiping Yu