Reflective meta-surface primary mirror, secondary mirror and telescope system

摘要

It relates to a reflective metasurface primary mirror, secondary mirror and telescope system. The reflective meta surface primary mirror includes a transparent substrate; and a primary mirror meta surface functional unit pattern positioned on the transparent substrate; the primary mirror meta surface functional unit pattern includes a primary mirror sub-wavelength structure having anisotropy located within the set annular region, and the phase introduced by the primary mirror sub-wavelength structure satisfies the primary mirror phase distribution; The set annular area surrounds the light-transmitting hole, and the light reflected by the reflective meta-surface secondary mirror is condensed through the light-transmitting hole.