Abstract: A line of sight (LOS) delivery system. The system includes a carrier device having a first collimated light source for targeting an object, a distance meter; and a second collimated light source for outputting a beam substantially parallel to a targeting beam of the first collimated light source. The system further includes an aerial vehicle mounted on the carrier device having a camera for acquiring an image including the object targeted by the first collimated light source, an optical assembly for reflecting the second collimated light source into the image to form a light dot on the object and a processing unit for controlling a flight of the aerial vehicle based on a location of the light dot with respect to the object in said image.

Abstract: An optical combiner for use with an optical eyepiece which is adjusted for viewing a first image, and which injects a non-collimated light beam from a second image substantially along an optical axis of the eyepiece so as to present a combined image to an observer. The combiner comprises a beam splitter for inserting into the eyepiece and having an entry aperture for intercepting the non-collimated light beam and directing a portion thereof outside the eyepiece so as to superimpose the second image on the first image.