Invention Grant
- Patent Title: Coatings for increasing near-infrared detection distances
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Application No.: US17126593Application Date: 2020-12-18
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Publication No.: US11808833B2Publication Date: 2023-11-07
- Inventor: Eldon L. Decker , Kristen Kruszewski , Luann Holsing , Stephen G. McQuown , Stuart D. Hellring , Michael Andrew Zalich
- Applicant: PPG Industries Ohio, Inc.
- Applicant Address: US OH Cleveland
- Assignee: PPG Industries Ohio, Inc.
- Current Assignee: PPG Industries Ohio, Inc.
- Current Assignee Address: US OH Cleveland
- Agent Christopher T. Meta
- Main IPC: G01S17/08
- IPC: G01S17/08 ; B32B33/00 ; C09D5/33 ; C09D7/40 ; C09D7/41 ; G01S17/931 ; C25D13/00 ; G01S7/481 ; C09D5/38 ; C09D17/00

Abstract:
A method for increasing a detection distance of a surface of an object illuminated by near-IR electromagnetic radiation, including: (a) directing near-IR electromagnetic radiation from a near-IR electromagnetic radiation source towards an object at least partially coated with a near-IR reflective coating that increases a near-IR electromagnetic radiation detection distance by at least 15% as measured at a wavelength in a near-IR range as compared to the same object coated with a color matched coating which absorbs more of the same near-IR radiation, where the color matched coating has a ΔE color matched value of 1.5 or less when compared to the near-IR reflective coating; and (b) detecting reflected near-IR electromagnetic radiation reflected from the near-IR reflective coating. A system for detecting proximity of vehicles is also disclosed.
Public/Granted literature
- US20210116563A1 Coatings for Increasing Near-Infrared Detection Distances Public/Granted day:2021-04-22
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