Importance

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Abstract

An acousto-optic modulator system for protecting a photoreceptor from an incident laser beam from a laser source includes a transducer array that is connected to a glass portion. The glass portion is arranged in a predicted path of the laser beam between the laser source and the photoreceptor. An electronic control unit (“ECU”) selectively energizes the transducer array and causes the transducer array to emit sound pressure waves into the glass portion. The sound pressure waves have predetermined oscillation characteristics that change a refractive index of the glass portion to diffract the beam. A camera system includes the transducer array, the ECU, and a camera having an image sensor and an external lens positioned in the predicted path. A host aircraft includes the photoreceptor, fuselage, one or more wings, the glass portion, the transducer array, and the ECU.

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First Claim