Invention Grant
- Patent Title: System and method for glint reduction
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Application No.: US17647929Application Date: 2022-01-13
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Publication No.: US11902494B2Publication Date: 2024-02-13
- Inventor: Bodo Schmidt , Paul S. Banks , Charles Stewart Tuvey
- Applicant: nLIGHT, Inc.
- Applicant Address: US WA Camas
- Assignee: nLIGHT, Inc.
- Current Assignee: nLIGHT, Inc.
- Current Assignee Address: US WA Camas
- Agency: Stoel Rives LLP
- Main IPC: H04N13/254
- IPC: H04N13/254 ; G01S17/10 ; G01S7/484 ; G01S7/486 ; G01S7/499 ; G02B30/25 ; G01S17/894

Abstract:
Systems and methods for reducing the deleterious effects of specular reflections (e.g., glint) on active illumination systems are disclosed. An example system includes an illuminator or light source configured to illuminate a scene with electromagnetic radiation having a defined polarization orientation. The system also includes a receiver for receiving portions of the electromagnetic radiation reflected or scatter from the scene. Included in the receiver is a polarizer having a polarization axis crossed with the polarization orientation of the emitted electromagnetic radiation. By crossing the polarizer with the polarization of the emitted electromagnetic radiation, the polarizer may filter out glint or specular reflections in the electromagnetic radiation returned from the scene.
Public/Granted literature
- US20220141446A1 SYSTEM AND METHOD FOR GLINT REDUCTION Public/Granted day:2022-05-05
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