一种确定环形孔径二次曲面非球面度梯度的方法

• Format: Patent
• Language: Chinese
• Published: 12.04.2024
• Subjects: OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICS; PHYSICS

本发明公开了一种基于三级像差理论确定环形孔径二次曲面非球面度梯度的方法，全口径二次曲面可以看作是内环孔径为0的环形孔径二次曲面。本发明克服了全口径和环形孔径二次曲面计算非球面度梯度没有函数形式，表达式不统一、不直观的缺点，理论可靠，结果简单。利用非球面参数便可快速、准确、直接地写出各种孔径二次曲面非球面度梯度的表达式，适用范围广，能显著提高工作效率，为非球面的加工和检测方案的制定，以及为工程时间和造价评估提供依据。 The invention discloses a method for determining the asphericity gradient of a circular aperture quadric surface based on the third-order aberration theory. A full-aperture quadric surface can be regarded as a circular aperture quadric surface with an inner ring aperture of 0. The method for determining the asphericity gradient of the circular aperture quadric surface overcomes the shortcomings that the asphericity gradient calculation of the full-aperture and circular aperture quadric surfaces has no function form and uniform expression, and is unintuitive; the theory is reliable, and the result is simple. The expression of the asphericity gradient of quadric surfaces with various apertures can be quickly, accurately and directly written by using the aspheric parameters; the application range is wide;