Patent ID: 7935273

Claim:
A luminescent screen provided with a phosphor layer comprising: a red-emitting Eu(III)-activated phosphor; and an UV-light emitting phosphor, wherein the red-emitting Eu(III)-activated phosphor includes Y(V 1-x P x )O 4 :Eu, with 0.0≦x≦1.0, wherein the UV-emitting phosphor is selected from a group consisting of (Gd 1-x-y Y x Lu y )PO 4 , (Gd 1-x-y Y x Lu y )BO 3 , (Gd 1-x-y Y x Lu y )B 3 O 6 , Ba(Gd 1-x-y Y x Lu y )B 9 O 16 , (Gd 1-x-y Y x Lu y ) 2 SiO 5 , (Gd 1-x-y Y x Lu y ) 2 Si 2 O 7 , (Gd 1-x-y Y x Lu y )MgB 5 O 10 , (Gd 1-x-y Y x Lu y )MgAl 11 O 19 , or a mixture of at least two thereof, with 0.0≦x≦0.99 and 0.0≦y≦0.99 and x+y <1.