文章同时给出了计算渐晕系数的新方法。
Meanwhile a new method to compute the vignetting coefficients has been given.
叙述一种用于测试大口径、长焦距光学系统杂光系数、渐晕系数、像面照度均匀性等光学参数的检测方法。
A method is introduced for testing stray light coefficient, vignetting coefficient and image surface uniformity optical system with large aperture and long focal length.
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