Blue luminescent cathode ray tube device with improved color fil

Details Blue luminescent cathode ray tube device with improved color fil Blue luminescent cathode ray tube device with improved color fil

1984-04-13

1986-02-25

Yoncoskie, Robert

Electric lamp and discharge devices

Cathode ray tube

Screen

313112, 313478, H01J 2910

Patent

active

045729840

ABSTRACT:
The invention relates to a cathode ray tube device for generating a bright blue light of the type that is particularly useful for projection color television and information display. To filter out undesired radiation emitted by a silver-activated zinc sulfide phosphor, there is located in the path of blue radiation a concentrated solution of a soluble erbium salt and Methyl Violet 2B.

REFERENCES:
patent: 3873868 (1975-03-01), Robinder

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