A method and an apparatus for directing an optical receiver (1) toward a light source, using a plurality of light detectors (9') arranged around the receiver's (1) optical axis (10) to check where light (L) hits the light detectors (9') relative to the optical axis (10), the method including the steps of: A) arranging the receiver (1) defocused to embrace a largest possible field of view of the area wherein the light source may be located, and refracting the light with largest possible spread angle; B) letting the receiver (1) search for the light source until the light (L) hits at least one of the light detectors (9'); C) calculating where the light hits relative to the optical axis, and adjusting the receiver, directing the light toward the optical axis; D) reducing the field of view embraced by the receiver; and E) repeating the steps C and D until the light is concentrated in a smallest possible area.