Fluorescent lamp for use in aquaria

Details Fluorescent lamp for use in aquaria Fluorescent lamp for use in aquaria

1989-10-05

1991-07-02

Yusko, Donald J.

Electric lamp and discharge devices

With luminescent solid or liquid material

With gaseous discharge medium

313486, H01J 162, H01J 6148

Patent

active

050288393

ABSTRACT:
A fluorescent lamp for use in aquaria, the luminescent layer in said lamp comprising a mixture of red, green and blue phosphors, the red phosphor emitting predominantly in the spectral region of from 610 nm to 620 nm, the green phosphor emitting predominantly in the spectral region of from 540 nm to 545 nm and the blue phosphor having a peak emission wavelength between 430 nm and 480 nm with the half peak width not exceeding 80 nm, said red, green and blue phosphors being blended to form said mixture in such proportions that the color co-ordinates of the lamp employing said mixture on the CIE chromaticity diagram differ from the point x equals 0.300 and y equals 0.232 in any direction by no more than 10 standard deviations of color matching (SDCM). Aquaria employing such lamps are also disclosed and claimed.

REFERENCES:
patent: 4176299 (1979-11-01), Thornton, Jr.

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