The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Sep. 03, 2024

Filed:

Apr. 21, 2021
Applicant:

Ams-osram International Gmbh, Regensburg, DE;

Inventor:

Gerd Plechinger, Saal a.d.Donau, DE;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 21/359 (2014.01); G01J 3/10 (2006.01); G01N 21/55 (2014.01);
U.S. Cl.
CPC ...
G01N 21/359 (2013.01); G01J 3/10 (2013.01); G01N 21/55 (2013.01); G01N 2021/558 (2013.01); G01N 2201/123 (2013.01);
Abstract

A method for the time-differentiated detection of a spectrum of a test object comprises providing a first conversion dye, which is configured to convert light with a first spectral distribution in the visible range into light with a second spectral distribution in the infrared range. The first conversion dye is excited with a light pulse in the range of the first spectral distribution during a first time period, and a light fraction, reflected or transmitted by the test object, in the range of the first spectral distribution is registered during a first time interval. During a subsequent second time period, a fraction of converted light reflected or transmitted by the test object is registered. According to the invention, the first time interval is selected so that it lies substantially inside a luminescence lifetime for the first conversion dye in the first time period.


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