A method is introduced for testing stray light coefficient, vignetting coefficient and image surface uniformity optical system with large aperture and long focal length.
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。
The system can be set up and adjusted quite easily and used to test large-aperture optical elements without high quality reference optics of the same size.
该系统结构简单，调整方便，并可以用作检验大口径光学元件而勿需同样尺寸的高质量参考光学件。
The Gravity deformation of large aperture optical cell greatly affect the optical surface test and the optical system performance.
大口径光学元件的重力变形对元件检测和光学系统性能影响很大。
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