Cathode-ray tube provided with a luminescent indium orthoborate

Details Cathode-ray tube provided with a luminescent indium orthoborate Cathode-ray tube provided with a luminescent indium orthoborate

1986-01-09

1987-03-24

Cooper, Jack

Electric lamp and discharge devices

Cathode ray tube

Screen

2523014R, 313467, C09K 11465

Patent

active

046527931

ABSTRACT:
A cathode-ray tube provided with a luminescent screen comprising a luminescent indium orthoborate activated by trivalent chromium. The tube yields an efficient emission in the near infrared part of the spectrum. If the borate further comprises Eu as an activator, an efficient Eu.sup.3+ emission is obtained in addition to the Cr emission.

REFERENCES:
patent: 2736712 (1956-02-01), Runciman et al.
patent: 3550033 (1970-12-01), Ohlmann et al.
patent: 3595803 (1971-07-01), Dugger
patent: 4524300 (1985-06-01), Ruffen et al.
Sevasfyanov et al., "Chem. Abstracts", vol. 78, 1973, 166773q.
Blasse et al., "Physics Letters", vol. 25A, No. 1, 1967, pp. 29-30.

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