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US-12169175-B2 · Dec 17, 2024 · US
Articles incorporating thermographic phosphors, and methods and apparatus for authenticating such articles
US8975598B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8975598-B2 |
| Application number | US-201313737594-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 9, 2013 |
| Priority date | Jan 17, 2012 |
| Publication date | Mar 10, 2015 |
| Grant date | Mar 10, 2015 |
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Abstract
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Embodiments include methods and apparatus for identifying a thermographic phosphor (e.g., Er:YIG) incorporated on or within an article. The method and apparatus embodiments include an excitation energy generator selectively exposing the article to excitation energy in an absorption band of the thermographic phosphor. An emitted radiation detector detects first emission characteristics of first emitted radiation from the article within an emission band of the thermographic phosphor when the article has a first temperature, and detects second emission characteristics of second emitted radiation from the article within the emission band when the article has a second temperature that is different from the first temperature. A temperature adjustment element is configured to adjust the temperature of the article. Embodiments further include a processing system determining whether the first emission characteristics are sufficiently different from the second emission characteristics.
First claim
Opening claim text (preview).
What is claimed is: 1. A method for identifying a luminescent material incorporated on or within an article, the method comprising the steps of: selectively exposing the article to excitation energy in an absorption band of the luminescent material; detecting first emission characteristics of first emitted radiation from the article within an emission band of the luminescent material when the article has a first temperature; detecting second emission characteristics of second…
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Physics · mapped topic
Chemistry & Metallurgy · mapped topic
- G01N21/64Primary
Physics · mapped topic
Operations & Transport · mapped topic
Physics · mapped topic
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- What does patent US8975598B2 cover?
- Embodiments include methods and apparatus for identifying a thermographic phosphor (e.g., Er:YIG) incorporated on or within an article. The method and apparatus embodiments include an excitation energy generator selectively exposing the article to excitation energy in an absorption band of the thermographic phosphor. An emitted radiation detector detects first emission characteristics of first …
- Who is the assignee on this patent?
- Honeywell Int Inc
- What technology area does this patent fall under?
- Primary CPC classification G01N21/64. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Mar 10 2015 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).