Tomkinson T H, Bentley J L, Crawford M K, Harkrider C J, Moore D T, Rouke J L
Appl Opt. 1996 Dec 1;35(34):6674-83. doi: 10.1364/AO.35.006674.
Relay systems in rigid endoscopes can compensate for aberrations in the objective and the eyepiece. Five classes of rigid relay systems are examined: conventional; glass Hopkins; plastic lens, glass-rod Hopkins; modified Hopkins; and gradient index. First-order theory, including achromatization, is developed for these systems. Design results are presented, and aberration, vignetting, and system length trade-offs are analyzed.
硬性内窥镜中的中继系统可以补偿物镜和目镜中的像差。研究了五类硬性中继系统:传统型;玻璃Hopkins型;塑料透镜、玻璃棒Hopkins型;改进型Hopkins型;以及梯度折射率型。针对这些系统建立了包括消色差在内的一阶理论。给出了设计结果,并分析了像差、渐晕和系统长度之间的权衡。