Two-component phosphor in a cool white lamp

Details Two-component phosphor in a cool white lamp Two-component phosphor in a cool white lamp

1979-06-22

1981-03-24

Demeo, Palmer C.

Electric lamp and discharge devices

With luminescent solid or liquid material

With gaseous discharge medium

2523014P, H01J 6144

Patent

active

042582857

ABSTRACT:
Fluorescent lamps containing a two-component phosphor system consisting essentially of europium activated barium magnesium aluminate as a blue emitter and manganese and antimony activated calcium chlorofluorapatite as a yellow emitter use less energy to achieve at least comparable brightness as a standard cool white lamp with a suitable color rendering index.

REFERENCES:
patent: 2488733 (1949-11-01), McKeag et al.
patent: 2965786 (1960-12-01), Aia et al.
patent: 3513103 (1970-05-01), Shaffer
patent: 3549552 (1970-12-01), van Broekhoven
patent: 3670194 (1972-06-01), Thornton et al.
patent: 4038204 (1977-07-01), Wachtel
patent: 4075532 (1978-02-01), Piper et al.
Walter, "Applied Optics", vol. 10, pp. 1108-1113, May 1971.

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