公开(公告)号：US11656497B2

公开(公告)日：2023-05-23

申请号：US17329140

申请日：2021-05-25

Applicant: Lextar Electronics Corporation

Inventor： Lung-Kuan Lai ,  Ting-Kai Chen ,  Jiun-Hong Lin

IPC: G02F1/1335 ,  G02F1/13357

CPC classification number: G02F1/133607 ,  G02F1/133603 ,  G02F1/133611

Abstract: An optical lens includes an optical transparent body which has an upper surface, a lower surface, a lateral surface and a lower concave portion. The upper surface includes a central upper concave portion, an outwardly-concave curved surface continuous from the central upper concave portion, and an inwardly-concave curved surface continuous from the outwardly-concave curved surface. The lateral surface is connected between the inwardly-concave curved surface and the lower surface. The lower concave portion is recessed from the lower surface.