Cui Jian-Peng, Zhang Ning, Liu Jie, Wu Di-Long, Xu Hua, Yan Ding-Yao, Ma Ping
Opt Express. 2018 Oct 15;26(21):28067-28077. doi: 10.1364/OE.26.028067.
A method for testing the transmitted wavefront of large aperture and long-focal-length lens with a multizone computer-generated hologram (CGH) is proposed. The multizone CGH has 5 zones: one main zone for the null testing of long-focal-length lens and four auxiliary zones for the pre-alignment of measured lens. Both 1st order wavefront and 0th order wavefront of CGH are measured, and 0th order wavefront is used to calibrate the substrate error. To verify this test approach, a 450mm × 450mm multizone CGH is designed and fabricated for testing the spatial filter lens. Experiments and error analysis are carried out. The results show that the desired precision can be reached with use of CGH.
提出了一种利用多区域计算全息图（CGH）测试大口径长焦透镜透射波前的方法。多区域CGH有5个区域：一个用于长焦透镜零位测试的主区域和四个用于被测透镜预对准的辅助区域。测量了CGH的一阶波前和零阶波前，并利用零阶波前校准基底误差。为验证该测试方法，设计并制作了一块450mm×450mm的多区域CGH用于测试空间滤波透镜。进行了实验和误差分析。结果表明，使用CGH可以达到预期的精度。
