Research on Multi-Optical Axes of Linear Array Parallelism Calibration System

Multi-sensor optical axes parallel calibration is the important link to guarantee high-precision multi-source data acquisition of linear array of active and passive imaging sensors.In this paper,presented is a suitable axis parallel calibration system for this type of load.Based on large-diameter collimator combined with assisted laser light source,this system uses image acquisition system to obtain the spot center so as to mach the multi-linear array laser receive and transmit optical axes.At the same time,linear visible light sources are used to extract the optical axis of the laser.Then the parallelism calibration between the linear visible optical axis and the laser optical axis can be finalized.The system enables the parallelism calibrations of the optical axes of multi-line sensors including receiving and transmitting optical axes of both active detectors and active/passive detector,presenting good versatility and scalability.