Optical system, optical sensing unit and optical sensing module

Abstract

The disclosure provides an optical system, an optical sensing unit and an optical sensing module. The optical system is used for forming a plurality of light spots on a plurality of photosensitive regions separated from each other. The optical system includes: a lens for receiving a first light beam and converging the first light beam; a first light-transmitting layer located under the lens, for refracting the converged first light beam into a plurality of second light beams, the plurality of second light beams being used for forming the plurality of light spots on the photosensitive regions, wherein each light spot in the plurality of light spots covers a part of the plurality of photosensitive regions; and a second light-transmitting layer located under the first light-transmitting layer, wherein the plurality of second light beams are respectively incident on the plurality of photosensitive regions through the second light-transmitting layer.

Dependencies are inferred from the claim text.