Raytheon Company

Philip T Shimon

Lacy G Cook

Lloyd J Lewins

Kenneth E Prager

Brendan H Robinson

Electro-optical sighting systems and methods are provided. One example includes a optical transmitter configured to emit an infrared beam along an optical path toward a target, a beam director positioned in the optical path and having a plurality of optical elements configured to direct the infrared beam and to collect reflected infrared radiation from reflection of the beam from the target, a focal plane array detector configured to receive reflected infrared radiation from the beam director, an optical phased array (OPA) positioned in the optical path between the optical transmitter and the beam director, and a controller operatively coupled to the OPA and configured to direct the OPA to defocus the infrared beam to broaden a field of view of the optical transmitter for active illumination, and focus the infrared beam to narrow the field of view of the optical transmitter for range determination and/or target designation.

Optical phased array focus control for active illuminated SWIR range selection

According to an embodiment of the disclosure, an optical sensor system comprises a mast, a mast mirror, a navigation unit, one or more faceted mirrors, and at least two beam-steering mirrors. The mast is elevated from a vehicle. The mast mirror reflects signals either to or from object space along a line of sight. The navigation unit determines a location and attitude of the mast mirror. The one or more faceted mirrors reflect an error sensing beam to reveal a flexure of the mast mirror. The at least two beam-steering mirrors prevent the line of sight for the signals reflected off the mast mirror from walking off the mast mirror by adjusting an angle and translation of the signals reflected off the mast mirror.

Auto-alignment system for high precision masted head mirror

Methods for tracking the relative velocity between a vehicle and a target that uses both a measured velocity as well as an estimate of the velocity that is based on tracking the peaks in a laser vibrometer return signal.

Doppler tracking in presence of vehicle velocity uncertainty

A jitter sensing mechanism for a gimbaled optical sensor system. In one example, the jitter sensing mechanism includes a faceted retro-mirror configured to allow a double-pass line-of-sight monitoring beam to sense line-of-sight jitter in a multi-axis gimbaled optical sensor system where the inner-most gimbal axis includes a 2:1 gain mirror.

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Torrance, CA, United States of America

Philip T Shimon