Radiant energy – Invisible radiation responsive nonelectric signalling – Luminescent device
Reexamination Certificate
2007-12-04
2007-12-04
Hannaher, Constantine (Department: 2884)
Radiant energy
Invisible radiation responsive nonelectric signalling
Luminescent device
Reexamination Certificate
active
11375623
ABSTRACT:
Phosphor-containing panels or screens have improved resistance to yellowing and image defects by the incorporation of a primary or secondary amine having a pKa of 8.5 or more and a molecular weight of less than 10,000 daltons into the phosphor layer or an overcoat layer. A peroxide scavenger can also be present to further improve stability of the phosphor panel. The phosphors are preferably storage phosphors containing iodine. This phosphor panels can be prepared using non-peroxide-generating organic solvents for further stabilization.
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Bermel Alexandra D.
Bermel Marcus S.
Broadus Katherine M.
Griggs James H.
Steklenski David J.
Carestream Health Inc.
Hannaher Constantine
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