公开(公告)号：US12001028B2

公开(公告)日：2024-06-04

申请号：US17953129

申请日：2022-09-26

Applicant: THE TRUSTEES OF DARTMOUTH COLLEGE

Inventor： Xiaoxin Wang ,  Charles J. Carver, Jr. ,  Eric R. Fossum ,  Jifeng Liu ,  Xia Zhou ,  Nicholas R. Shade

IPC: G02B27/48 ,  F21V8/00

CPC classification number: G02B27/48 ,  G02B6/0006 ,  G02B6/0008

Abstract: A speckle-suppressing lighting system includes an optical waveguide, a first solid-state light source, a second solid-state light source, and a diffuser. The optical waveguide has a proximal end and a distal end. At least part of the diffuser is between the proximal end and the distal end. The first solid-state light source is optically coupled to the optical waveguide near the proximal end, and emits a first light beam that propagates toward the distal end and has a first center wavelength. The second solid-state light source is optically coupled to the optical waveguide near the proximal end, and emits a second light beam that propagates toward the distal end and has a second center wavelength differing from the first center wavelength. The diffuser diffuses the first light beam and the second light beam.

公开(公告)号：US20230100241A1

公开(公告)日：2023-03-30

申请号：US17953129

申请日：2022-09-26

Applicant: THE TRUSTEES OF DARTMOUTH COLLEGE

Inventor： Xiaoxin Wang ,  Charlie J. Carver, JR. ,  Eric R. Fossum ,  Jifeng Liu ,  Xia Zhou ,  Nicholas R. Shade

IPC: G02B27/48 ,  F21V8/00

Abstract: A speckle-suppressing lighting system includes an optical waveguide, a first solid-state light source, a second solid-state light source, and a diffuser. The optical waveguide has a proximal end and a distal end. At least part of the diffuser is between the proximal end and the distal end. The first solid-state light source is optically coupled to the optical waveguide near the proximal end, and emits a first light beam that propagates toward the distal end and has a first center wavelength. The second solid-state light source is optically coupled to the optical waveguide near the proximal end, and emits a second light beam that propagates toward the distal end and has a second center wavelength differing from the first center wavelength. The diffuser diffuses the first light beam and the second light beam.