Plant growth type fluorescent lamp

Details Plant growth type fluorescent lamp Plant growth type fluorescent lamp

1972-08-04

1976-11-16

Demeo, Palmer C.

Electric lamp and discharge devices

With luminescent solid or liquid material

With gaseous discharge medium

H01J 6144

Patent

active

039926460

ABSTRACT:
An inexpensive luminescent discharge lamp to efficiently stimulate balanced undistorted plant growth, the lamp emitting radiation having a spectral energy distribution such that the energy in the 400-500 nanometer (nm), 590-640 nm, 640-690 nm, and 690-800 nm bands are approximately in proportions of 0.8:1:1:1. The enumerated spectral energy distribution provide for a very high plant growth rate with balanced plant growth. Preferably the lamp uses a phosphor blend of about 95% by weight stannous tin activated strontium calcium magnesium orthophosphate and about 5% by weight divalent europium activated strontium chloroapatite.

REFERENCES:
patent: 3114067 (1963-12-01), Henderson
patent: 3287586 (1966-11-01), Bickford
patent: 3670194 (1972-06-01), Thornton, Jr. et al.
"Fluorescent Lamps and Lighting," edited by W. Elenbaas chapter III, sections 3.1 and 3.5, pp. 31,32,33,42,43,44, (1962).

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