公开(公告)号：US20240126092A1

公开(公告)日：2024-04-18

申请号：US17966891

申请日：2022-10-17

Applicant: PIXART IMAGING INC.

Inventor： Sai-Mun LEE ,  Hun-Kwang LEE ,  Yee-Loong CHIN ,  Chee-Pin T'NG

IPC: G02B27/09 ,  G01S7/481

CPC classification number: G02B27/0955 ,  G01S7/4815

Abstract: There is provided an optical navigation device including a substrate, a light sensor, a first light source, a second light source and a light directing member. The light sensor is arranged on the substrate and has a field of view (FOV) perpendicular to the substrate. The emission light of the first light source forms a first illumination light beam after passing the light directing member. The emission light of the second light source forms a second illumination light beam after passing the light directing member. A first crossover region of the first illumination light beam with the FOV is closer to the substrate than a second crossover region of the second illumination light beam with the FOV.