Optical layout of a two-spherical-mirror system.|@|~(^,^)~|@|Analytic solutions of the anastigmatic two-spherical-mirror system. (a) M = −0.2, positive solution S1. (b) M = −0.2, negative solution S2. (c) M = 0.2, positive solution S3. (d) M = 0.2, negative solution S4.|@|~(^,^)~|@|Variations of design parameters of the negative solution S2 as a function of lateral magnification M (d2 and h2 are normalized to +1). (a) Ray height h1. (b) Axial distance d0. (c) Axial distance d1.|@|~(^,^)~|@|Variations of design parameters of the negative solution S4 as a function of lateral magnification M (d2 and h2 are normalized to +1). (a) Ray height h1. (b) Axial distance d0. (c) Axial distance d1.|@|~(^,^)~|@|Optical layout of the stabilized Lister (numerical aperture 0.25, effective focal length 20 mm).|@|~(^,^)~|@|Chromatic changes of the effective focal length (EFL) and back focal length (BFL) of the stabilized Lister.|@|~(^,^)~|@|Root-mean-square (RMS) wavefront errors of the stabilized Lister.|@|~(^,^)~|@|Diffraction modulation transfer function (MTF) of the stabilized Lister.|@|~(^,^)~|@|Typical example of a refractive-reflective objective using the negative solution S4. (a) On-axis (F1). (b) Off-axis (F6).|@|~(^,^)~|@|Design examples of refractive-reflective objectives with different working distances (WDs). (a) 6 mm WD. (b) 12 mm WD. (c) 18 mm WD.|@|~(^,^)~|@|Final design of refractive-reflective objective (numerical aperture 0.5, working distance 18 mm).|@|~(^,^)~|@|Chromatic changes of the effective focal length (EFL) and back focal length (BFL) of the refractive-reflective objective.|@|~(^,^)~|@|RMS wavefront errors of the refractive-reflective objective.|@|~(^,^)~|@|Diffraction modulation transfer function (MTF) of the refractive-reflective objective.|@|~(^,^)~|@|Diffraction modulation transfer function (MTF) of the Lister up to 500 cycles/mm.|@|~(^,^)~|@|Diffraction modulation transfer function (MTF) of the refractive-reflective objective up to 500 cycles/mm.|@|~(^,^)~|@|Line spread functions of the on-axial field F1.|@|~(^,^)~|@|Line spread functions of the off-axial field F6.

2023;34:248~260 https://doi.org/10.3807/KJOP.2023.34.6.248