Lens outer diameter error non-rotation type detection method

The invention relates to the technical field of lens detection methods, in particular to a lens outer diameter error non-rotation type detection method. The lens outer diameter error non-rotation typedetection method comprises: (1) establishing a coordinate system; (2) measuring three-point coordinates of the outer circle edge of a lens to be detected; 3), determining measured circle diameter D1according to the principle of determining a circle by three points, and comparing the measured circle diameter D1 with a set outer diameter value D of the lens to be detected; and 4), and calculatingthe diameter of a circle confirmed by other three points according to the method, and then performing comparison until the lens is determined to be a qualified product or an unqualified product. The lens to be detected is fixed in the detection process, a sensor probe cannot scratch the outer circle of the lens to be detected, the structure integrity of the lens to be detected is not influenced, whether the lens to be detec