Electric control type zoom lens

The invention belongs to the technical field of optical liquid crystal zoom, and particularly relates to a zoom lens. The electronic control type zoom lens comprises a circuit control part and a zoompart, the zoom part comprises two nematic phase liquid crystal devices, each nematic phase liquid crystal device comprises a nematic phase liquid crystal box and two electrodes, and the two electrodesare arranged on the two opposite sides of the nematic phase liquid crystal box respectively. The length directions of the two electrodes are consistent with the optical axis direction of the nematicphase liquid crystal box; the optical axes of the nematic phase liquid crystal boxes of the two nematic phase liquid crystal devices are perpendicular to each other; the circuit control part controlsthe two electrodes of each nematic phase liquid crystal device through output voltage values, so that potential difference is generated on the two sides of a nematic phase liquid crystal box of each nematic phase liquid crystal