Figure 5.

Capability in printing aspherical surface. a) Ray tracing of the plano‐convex singlet with the spherical surface (top) and aspherical surface (bottom), b) SEM image of the plano‐convex single with spherical surface, c) image of the element of the fourth group in USAF resolution target captured by the lens in (b), d) SEM image of the plano‐convex single with aspherical surface, e) surface deviation of the printed and designed aspherical surface, and f) image of the element of the fourth group in USAF resolution target captured by the lens in (d).