Polarized structured light module

Abstract

A polarized structured light module includes a substrate, a light source and an optical element. The substrate has a mounting surface. The light source is arranged on the mounting surface of the substrate. The optical element includes a meta optical surface and a plurality of meta-micro structures disposed on the meta optical surface. Each meta-micro structure is arranged asymmetrically. The light source emits non-polarized light irradiated to the meta-micro structure so as to form first polarization structured light and second polarization structured light. The first polarization structured light is provided with a first polarization direction. The second polarization structured light is provided with a second polarization direction. The first polarization structured light is different from the second polarization structured light.

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