Optical axis deviation real-time correction method for photoelectric detection equipment

Abstract

The invention discloses a photoelectric detection equipment optical axis deviation real-time correction method, and particularly relates to the field of photoelectric detection. Equivalent imaging is carried out on the CCD module and the infrared detector through the composite light source; wherein the composite light source comprises visible light and infrared light, the visible light is imaged into a first target and a second target in the CCD module, and the infrared light is imaged into a third target and a fourth target in the infrared detector; connecting the first target and the second target to form a first straight line; acquiring a light spot coordinate of the laser on the CCD module; presetting a light spot equivalent point according to the light spot coordinate; according to the included angle between the third target and the light spot equivalent point, the included angle between the fourth target and the light spot equivalent point, and the relative position relation between the light spot and the first straight line, the coordinates of the light spot equivalent point are determined; and correcting the optical axis of the infrared detector by using the coordinates of the light spot equivalent points. Compared with a traditional optical axis correction method, the precision of the obtained optical axis deviation is improved, and then the accuracy and stability of laser ranging are improved.