| dc.description.abstract | This paper proposes to use Matlab to calculate the optimal value design of triplet lens. First, correct the longitudinal chromatic aberration, use three thin lens glass materials to correct the longitudinal primary and secondary chromatic aberration, and then add two wavelengths to correct the longitudinal chromatic aberration of five wavelengths. Chromatic aberration and using the ?? − ??? diagram and the ??? − P?? diagram through the three lens materials can quickly find the combination of the three lenses with smaller chromatic aberration, which is called the illustration method, and obtain the three lens material combination with the best correction of longitudinal chromatic aberration; secondly Derive the formula of third-order aberration of triplet lens, and calculate the optimal correction of third-order spherical aberration, third-order coma aberration, third-order oblique astigmatism by means of damped least squares method, and use Matlab programming language The aberration optimization program uses the refractive index and shape factor of the triplet lens to fix the refractive index of the combination of the three lenses, and controls the third-order spherical aberration, the third-order spherical aberration, and the third-order spherical aberration of the three thick lenses by exploring the influence of the third-order aberration value on the real aberration. First-order coma aberration, third-order oblique astigmatism, to correct its real aberration and compare the image quality with the Kingslake triplet lens design to obtain the optimal design of the three-piece thick lens group. Then, the concept of the illustration method and the method of third-order aberration optimization are used to design a 300,000-pixel digital camera lens as an example. | en_US |