Direct luminescent cathode ray device with improved color...

Details Direct luminescent cathode ray device with improved color... Direct luminescent cathode ray device with improved color...

H - Electricity

01

J

313/35.151

H01J 29/89 (2006.01)

Patent

CA 1234410

ABSTRACT: "Direct luminescent cathode ray device with improved color filter- ing system". Undesired light radiations emitted by europium activated red luminescent phosphors employed in projection color televisions are greatly reduced, with essentially no reduction in the desired radiation, by employing as a filter a solution containing a soluble holmium salt and a soluble neodymium salt.

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