公开(公告)号：US20230319245A1

公开(公告)日：2023-10-05

申请号：US18056431

申请日：2022-11-17

Applicant: NICHIA CORPORATION

Inventor： Wataru KITAHARA ,  Takanori ARUGA

IPC: H04N9/31 ,  G02B27/28 ,  G02B3/00

CPC classification number: H04N9/3161 ,  H04N9/3164 ,  H04N9/3167 ,  G02B27/283 ,  G02B3/0056

Abstract: A light source device includes a polarization multiplexing member including first and second regions, and a light source part. The light source part includes a first light source configured to emit a first laser beam having a first peak wavelength, a second light source configured to emit a second laser beam a second peak wavelength different from the first peak wavelength, a third light source configured to emit a third laser beam having the first peak wavelength, and a fourth light source configured to emit a fourth laser beam having the second peak wavelength. The first laser beam passes through the first region. The second laser beam passes through the second region. The third laser beam is reflected by the first region. The fourth laser beam is reflected by the second region.

公开(公告)号：US20220196998A1

公开(公告)日：2022-06-23

申请号：US17555502

申请日：2021-12-20

Applicant: NICHIA CORPORATION

Inventor： Wataru KITAHARA ,  Takanori ARUGA

IPC: G02B17/08 ,  G02B5/02 ,  G02B3/08

Abstract: An optical lens includes a first light incident portion where a narrow-angle light from a light source is incident, a second light incident portion where a wide-angle light from the light source is incident, a first total reflecting portion that totally reflects incident light from the first light incident portion, a second total reflecting portion that totally reflects incident light from the second light incident portion, and a light exiting portion that emits light totally reflected at the second total reflecting portion. The second total reflecting portion allows light totally reflected at the first total reflecting portion to pass through.