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Analysis and calculation of the veiling glare index in optical systems

机译:光学系统遮蔽眩光指数的分析与计算

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摘要

Veiling glare index (VGI) is an important criterion to evaluate the image quality that can be obtained with an optical system. The VGI can be measured after the design of the optical system. If the measured VGI of an optical system does not meet the requirements, the stray-light suppression must be adjusted to improve its effectiveness. To facilitate this process, we propose a method to calculate the VGI of an optical system during the design stage. In the method, a programme called TracePro is used to model and analyse the optical system using tracing rays, and MATLAB is used to fit the simulation results to obtain the VGI. This method enables analysis and calculation of the VGI before fabrication of the system and provides an accurate technique to evaluate the effectiveness of the stray-light suppression in an optical system.
机译:遮盖眩光指数(VGI)是评估通过光学系统可获得的图像质量的重要标准。 VGI可以在光学系统的设计之后测量。 如果光学系统的测量VGI不符合要求,则必须调整杂散光抑制以提高其有效性。 为了促进该过程,我们提出了一种方法来计算设计阶段期间光学系统的VGI。 在该方法中,使用称为TRACEPRO的程序来模拟和分析使用跟踪光线的光学系统,并且MATLAB用于拟合模拟结果以获得VGI。 该方法能够在制造系统之前对VGI进行分析和计算,并提供准确的技术来评估光学系统中的杂散光抑制的有效性。

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