Are you describing a laser receiver as would be used by a land surveyor? Laser targets of that type are only ~5cm high and don't have much granularity; I'm assuming that they have a row of individual sensors.
Are you describing a laser receiver as would be used by a land surveyor? Laser targets of that type are only ~5cm high and don't have much granularity; I'm assuming that they have a row of individual sensors.