Luminescent materials, articles incorporating luminescent materials, and methods for performing article authentication

US9250183B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9250183-B2
Application numberUS-201213708210-A
CountryUS
Kind codeB2
Filing dateDec 7, 2012
Priority dateDec 19, 2011
Publication dateFeb 2, 2016
Grant dateFeb 2, 2016

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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Abstract

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Embodiments of luminescent materials and articles include first and second particles of first and second inorganic host lattices. The first particles are capable of producing first emissions having one or more first emission peaks at one or more first wavelengths. The first emissions have a first decay half-life that is long enough for the first emissions to be perceptible to the human eye for a first time period that begins when appropriate excitation of the luminescent material is discontinued. The second particles are capable of producing second emissions having one or more second emission peaks at one or more second wavelengths. The second emissions have a second decay half-life that is longer than the first decay half-life by a decay time difference that is sufficient for the second emissions to be perceptible to the human eye for a second time period that begins after the first time period.

First claim

Opening claim text (preview).

What is claimed is: 1. A luminescent material comprising: first particles of a first inorganic host lattice having at least one first substance dispersed within the first inorganic host lattice, wherein the first particles are capable of producing first emissions having one or more first emission peaks at one or more first wavelengths, wherein the one or more first wavelengths include at least one first visible wavelength within the visible spectrum, and the first emissions at th…

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What does patent US9250183B2 cover?
Embodiments of luminescent materials and articles include first and second particles of first and second inorganic host lattices. The first particles are capable of producing first emissions having one or more first emission peaks at one or more first wavelengths. The first emissions have a first decay half-life that is long enough for the first emissions to be perceptible to the human eye for …
Who is the assignee on this patent?
Honeywell Int Inc
What technology area does this patent fall under?
Primary CPC classification G01N21/63. Mapped technology areas include Physics.
When was this patent published?
Publication date Tue Feb 02 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).