Patent · US Expired

Device for acquiring information contained in a phosphor layer

US7176476B2 · kind B2 · utility

4Cited by

8References

9Claims

0Family size

Assignee

Agfa-Gevaert Healthcare GmbH · DE

Inventors

Martin Lind · Munich, DE
Ralph Thoma · Augsburg, DE
Georg Reiser · Baden, AT
Christian Schulz · Duisburg, DE

Key dates

Filing date	Mar 8, 2004
Grant date	Feb 13, 2007
Priority date	—
Expiry date	Mar 8, 2024

Classification

Technology area (CPC G)Physics
CPC primaryG01T1/2014
WIPO fieldEnvironmental technology
WIPO sectorChemistry

Abstract

A device for acquiring information contained in a phosphor layer comprises a light source (2) for irradiating the phosphor layer (1) with excitation light (3) that is suitable for exciting emission light (4) in the phosphor layer (1), a detector (6) for detecting the emission light (4) that has been excited in the phosphor layer (1), and a filter device (8), arranged between the phosphor layer (1) and the detector (6), that is substantially transparent in a first wavelength range (W1) of the emission light (4) and substantially non-transparent in a second wavelength range (W2) of the excitation light (3). To increase the reliability during the acquisition of the emission light, the filter device (8) is made substantially non-transparent in at least a third wavelength range (W3) having longer wavelengths than the second wavelength range (W2) of the excitation light (3).

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.