Systems, devices, and methods for stopping the rotation of propellers used in unmanned aerial vehicles (UAV) such as drones are disclosed. The propellers are stopped in response to detecting when beams of light adjacent the propellers are blocked.

An evacuation slide light system may comprise a sensor, a controller configured to receive a signal from the sensor, and a plurality of lights operably coupled to the controller. The sensor may be configured to measure at least one of a pressure of the evacuation slide or a stretch of a material of the evacuation slide. The controller may determine the pressure of the evacuation slide based on the signal from the sensor. The controller may be configured to cause the plurality of lights to emit a first color if the pressure of the evacuation slide is less than a threshold pressure and to emit a second color if the pressure of the evacuation slide is greater than or equal to the threshold pressure.

An evacuation slide light system may comprise a sensor, a controller configured to receive a signal from the sensor, and a plurality of lights operably coupled to the controller. The sensor may be configured to measure at least one of a pressure of the evacuation slide or a stretch of a material of the evacuation slide. The controller may determine the pressure of the evacuation slide based on the signal from the sensor. The controller may be configured to cause the plurality of lights to emit a first color if the pressure of the evacuation slide is less than a threshold pressure and to emit a second color if the pressure of the evacuation slide is greater than or equal to the threshold pressure.

An exterior aircraft light includes a mounting board, a light source arranged on the mounting board and a lens arranged over the light source. The lens includes a first lens portion on a first side of a cross-sectional center plane, which is orthogonal to the mounting board and which runs through the light source, and a second lens portion on a second side of the cross-sectional center plane. The light also includes a reflector, arranged to reflect light, emitted by the light source into the first lens portion, towards the second lens portion, wherein the lens fully encloses the light source and the reflector.

Systems, methods, and devices of the various embodiments enable local visual identification and verification of robotic vehicles. Various embodiments may enable disambiguation of a robotic vehicle from among a plurality of robotic vehicles.

Systems, methods, and devices of the various embodiments enable local visual identification and verification of robotic vehicles. Various embodiments may enable disambiguation of a robotic vehicle from among a plurality of robotic vehicles.

An aircraft search light system is disclosed. Voice commands may be used to control one or more aspects of the operation of the aircraft search light system, including to initiate the detection of objects in image data, to select a particular object in the image data to be tracked by the search light, and the like. The search light may be moved based upon processed image data, for instance such that the selected object continues to be illuminated by the search light. Voice commands may also be used to initiate movement the search light relative to the selected object (e.g., to keep the selected object in the field of view of the search light). Audio output may be generated by the aircraft search light system to provide information to aircraft personnel on the processed image data, and on which one or more subsequent voice commands may be based.

An aircraft search light system is disclosed. Voice commands may be used to control one or more aspects of the operation of the aircraft search light system, including to initiate the detection of objects in image data, to select a particular object in the image data to be tracked by the search light, and the like. The search light may be moved based upon processed image data, for instance such that the selected object continues to be illuminated by the search light. Voice commands may also be used to initiate movement the search light relative to the selected object (e.g., to keep the selected object in the field of view of the search light). Audio output may be generated by the aircraft search light system to provide information to aircraft personnel on the processed image data, and on which one or more subsequent voice commands may be based.

A non-pyrotechnic aerial display system may include a launcher configured to launch a non-pyrotechnic aerial display apparatus. The apparatus may include a head portion and a wing portion. The head portion may include a front portion, a rear portion, and a plurality of channels extending from the front portion toward the rear portion. The wing portion may extend rearward from the head portion. The wing portion may include a top surface, a bottom surface, a leading edge, a trailing edge, a rear edge extending from the leading edge to the trailing edge, and an airfoil extending along the leading edge. The wing portion may include a counterweight. The apparatus may include one or more forward-facing lights. The apparatus may include one or more rearward-facing lights. Other examples may be described and claimed.

A non-pyrotechnic aerial display system may include a launcher configured to launch a non-pyrotechnic aerial display apparatus. The apparatus may include a head portion and a wing portion. The head portion may include a front portion, a rear portion, and a plurality of channels extending from the front portion toward the rear portion. The wing portion may extend rearward from the head portion. The wing portion may include a top surface, a bottom surface, a leading edge, a trailing edge, a rear edge extending from the leading edge to the trailing edge, and an airfoil extending along the leading edge. The wing portion may include a counterweight. The apparatus may include one or more forward-facing lights. The apparatus may include one or more rearward-facing lights. Other examples may be described and claimed.