Luminescent screen

Details Luminescent screen Luminescent screen

H - Electricity

01

J

117/22

H01J 9/22 (2006.01) C09K 11/77 (2006.01) H01J 61/20 (2006.01)

Patent

CA 1187349

11 ABSTRACT: Luminescent screen comprising, provided on a carrier, a luminescent rare earth metal metaborate defined by the formula (Y, La)1-x-y-zCexGdyTbz(Mg, Zn)1-pMnpB5O10, wherein when y = z = p = O, it holds that 0.01 ? x ? 1,0, when z = p = O and y ? O, its holds that 0.01 ? x ? 1-y 0.02 ? x ? 0.80, when p = O and z ? O, it holds that 0.01 ? x ? 1-y-z 0 ? y ? 0.98 y+z ? 0.99 0.01 ? x ? 0.75, when z = O and p ? O, it holds that 0.01 ? x ? 1-y 0 ? y ? 0.99 0.01 ? p ? 0.30, and if both p ? O and z ? O, it holds that 0.01 ? x ? 1-y-z 0 ? y ? 0.98 0.01 ? Z ? 0.75 y+z ? 0.99 0.01 ? p ? 0.30, and wherein up to 20 moles of the B may be replaced by Al and/or Ga, the metaborate containing Cd which partly or wholly replaces the Mg and/or Zn.

394611

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