Fig. 1. Geometry diagram of off-axis wave aberration

Fig. 2. Model of reversed optical path for off-axis wave aberration

Fig. 3. Off-axis point wave aberration measurement system based on PMD

Fig. 4. Forward wave aberrations, reversed wave aberrations and their differences of plano-convex lens at different fileds. (a)－(c) 0° half field angle; (d)－(f) 3° half field angle; (g)－(i) 5° half field angle

Fig. 5. Zernike coefficient comparison between wave aberration and reversed wave aberration of plano-convex lens at 5° half field angle

Fig. 6. Coefficients of primary coma and astigmatism of plano-convex lens under different conditions. (a) Different field angles with aperture of 75 mm; (b) different apertures with field angle of 5°

Fig. 7. Experimental devices. (a) Diagram of measuring device; (b) plano-convex lens to be measured

Fig. 8. Acquired fringe patterns. (a) Fringes with lens; (b) fringes without lens

Fig. 9. Transmission fringe images under different fields of view

Fig. 10. Experimental and simulated wave aberrations after removing first four terms of Zernike polynomials. (a)－(c) 0° half field angle; (d)－(f) 3° half field angle; (g)－(i) 5° half field angle

Fig. 11. Experimental and simulated results at 5.17° half field angle

Fig. 12. Coefficients of primary coma and astigmatism of plano-convex lens under different conditions. (a) Different field angles with aperture of 60 mm; (b) different apertures with field angle of 5.17°