US 11,808,833 B2
Coatings for increasing near-infrared detection distances
Eldon L. Decker, Gibsonia, PA (US); Kristen Kruszewski, Pittsburgh, PA (US); Luann Holsing, Saxonburg, PA (US); Stephen G. McQuown, Cheswick, PA (US); Stuart D. Hellring, Pittsburgh, PA (US); and Michael Andrew Zalich, Pittsburgh, PA (US)
Assigned to PPG Industries Ohio, Inc., Cleveland, OH (US)
Filed by PPG Industries Ohio, Inc., Cleveland, OH (US)
Filed on Dec. 18, 2020, as Appl. No. 17/126,593.
Application 17/126,593 is a continuation of application No. 16/830,719, filed on Mar. 26, 2020, granted, now 10,901,086.
Application 16/830,719 is a continuation of application No. 16/253,873, filed on Jan. 22, 2019, granted, now 10,641,895, issued on May 5, 2020.
Application 16/253,873 is a continuation of application No. 15/796,040, filed on Oct. 27, 2017, granted, now 10,215,855, issued on Feb. 26, 2019.
Claims priority of provisional application 62/414,065, filed on Oct. 28, 2016.
Prior Publication US 2021/0116563 A1, Apr. 22, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. G01S 17/08 (2006.01); B32B 33/00 (2006.01); C09D 5/33 (2006.01); C09D 7/40 (2018.01); C09D 7/41 (2018.01); G01S 17/931 (2020.01); C25D 13/00 (2006.01); G01S 7/481 (2006.01); C09D 5/38 (2006.01); C09D 17/00 (2006.01)
CPC G01S 17/08 (2013.01) [B32B 33/00 (2013.01); C09D 5/004 (2013.01); C09D 5/38 (2013.01); C09D 7/41 (2018.01); C09D 7/70 (2018.01); C09D 17/003 (2013.01); C09D 17/006 (2013.01); C09D 17/007 (2013.01); C09D 17/008 (2013.01); C25D 13/00 (2013.01); G01S 7/481 (2013.01); G01S 17/931 (2020.01)] 20 Claims
OG exemplary drawing
 
1. A system for detecting proximity of an object in a path of a vehicle, comprising:
an object in the path of a vehicle, wherein the object is 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 between the object and the vehicle as compared to the object coated with a color matched coating which absorbs more of the near-IR radiation, wherein the color matched coating has a ΔE color matched value of 1.5 or less when compared to the near-IR reflective coating, as measured using an integrating sphere with D65 Illumination, 10° observer with specular component included.