Camera module lens tilt angle calibration method

The invention discloses a camera module lens tilt angle calibration method. The camera module lens tilt angle calibration method includes determining tilt angle range of lens in X, Y and Z directions,Determining a dip angle sampling sample interval for rough attitude determination according to the number of sampling samples and the dip angle range; Obtain inclination and edge resolution differences for all samples; According to the difference between the dip angle and the edge resolution of all samples, constructing a nonlinear equation; Calculating equation coefficients of the nonlinear equation; Calculating the extremum of the function to obtain the lens dip angle; According to the inclination angle of the rough attitude determination and sampling interval, determining the inclination angle sampling sample of the precise attitude determination, and repeating the above steps to calculate the lens inclination angle of the precise attitude determination. The test board has the advantages of simple design and l