Daylight fluorescent lamps employing blend

Details Daylight fluorescent lamps employing blend Daylight fluorescent lamps employing blend

1979-06-22

1984-07-03

Moore, David K.

Electric lamp and discharge devices

With luminescent solid or liquid material

With gaseous discharge medium

313468, H01J 162

Patent

active

044581769

ABSTRACT:
A fluorescent lamps having colors similar to standard daylight can be prepared using two component compositions. A blue emitting phosphor having a peak emission with a specified range and a 50% band width within a specified range along with specific amounts of a yellow-emitting phosphor having a 50% band width within a specified range and a peak emission within a specified range provide a daylight lamp with a higher lumer per watt than the standard daylight lamp.

REFERENCES:
patent: 2488733 (1949-11-01), McKeag et al.
patent: 2965786 (1960-12-01), Aia et al.
patent: 3509065 (1970-04-01), Palilla
patent: 3513103 (1970-05-01), Shaffer
patent: 3549552 (1970-12-01), Broekhoven
patent: 3670194 (1972-06-01), Thornton et al.
patent: 4038204 (1977-07-01), Wachtel
patent: 4075532 (1978-02-01), Piper et al.
Walter, "Optimum Phosphor Blends for Fluorescent Lamps;" Applied Optics, vol. 10, p. 1108; May, 1971; pp. 1108-1113.

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