Patent ID: 11933999
Assignee: CORETRONIC CORPORATION
Field: Optics (Instruments)
Classification: CPC G | IPC F

Claim 15:
16. A light source module, comprising:
a plurality of light emitting elements, configured to provide a light beam; and
an optical structure film, located on a transmission path of the light beam, comprising:
a substrate, having a first surface and a second surface back facing each other, wherein the first surface faces the light emitting elements; and
a plurality of optical unit microstructures, wherein each of the optical unit microstructures has four side surfaces and an inwardly concave beam splitting surface, the beam splitting surface is respectively connected to the side surfaces and the beam splitting surface has four endpoints when viewed from a front viewing angle, connection lines of the four endpoints form a rectangle, and the beam splitting surface comprises:
at least one beam splitting curved surface, wherein a junction of the beam splitting surface and one of the four side surfaces is a first line segment, and a projection of a midpoint of an edge of the rectangle on the beam splitting surface overlaps with a relative extreme point of the first line segment.