MECHANICALLY ACTUATED HYBRID DIFFRACTIVE-REFRACTIVE VARIABLE-FOCUS LIQUID LENS

摘要

A mechanically actuated hybrid diffractive-refractive variable-focus liquid lens comprises a substrate frame (214), a substrate (211) and a transparent elastic film (213). A ring-shape concave groove (216) is provided on the inside of the substrate frame (214), the peripheries of the substrate (211) and the transparent elastic film (213) are embedded in the ring-shape concave groove (216), the substrate (211) and the transparent elastic film (213) are hermetically connected with the substrate frame (214). The substrate (211) and the transparent elastic film (213) form a sealed cavity (217), the sealed cavity (217) is filled with filling liquid (212). The sealed cavity (217) is connected to the cavity of a control piston (215). The substrate (211) has a diffraction surface.