Coatings for Increasing Near-Infrared Detection Distances
First Claim
1. A method for increasing a detection distance of a surface of an object illuminated by near-IR electromagnetic radiation, comprising:
- detecting, with a near-IR detector, reflected near-IR electromagnetic radiation reflected from a near-IR reflective coating at least partially coating an object, wherein the near-IR reflective coating 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, wherein the color matched coating has a Δ
E 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.
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Accused Products
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.
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Citations
20 Claims
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1. A method for increasing a detection distance of a surface of an object illuminated by near-IR electromagnetic radiation, comprising:
detecting, with a near-IR detector, reflected near-IR electromagnetic radiation reflected from a near-IR reflective coating at least partially coating an object, wherein the near-IR reflective coating 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, wherein the color matched coating has a Δ
E 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.- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
Specification