Low pressure sodium-mercury lamp yielding substantially white li

Details Low pressure sodium-mercury lamp yielding substantially white li Low pressure sodium-mercury lamp yielding substantially white li

1995-10-18

1997-06-10

Pascal, Robert

Electric lamp and discharge devices: systems

Discharge device load

Plural gases or vapors in the discharge device

315108, 313638, H01J 1700

Patent

active

056379650

ABSTRACT:
Low pressure sodium lamp color output is shifted from yellow to a fuller spectral range of visible light (white) by effective simultaneous excitation of sodium and a mercury additive. This is made possible principally by controlling the vapor constituents and the excitation arrangement.

REFERENCES:
patent: 4137484 (1979-01-01), Osteen
patent: 4963796 (1990-10-01), Gottschling et al.
patent: 5021718 (1991-06-01), Maya et al.
patent: 5266864 (1993-11-01), Michael et al.
J. Maya, "Quantum efficiency of fluorescence from the Na-Hg vapor excited by 253.7-nm radiation," 40(11) Appl. Phys.Lett., pp. 933-935, (1 Jun. 1982).
T.G. Verbeek, "Calculations on low pressure sodium-mercury-neon discharges, 27th Gaseous Electronics Conference", a topical conference of The American Physical Society, Division of Electron and Atomic Physicis, Sponsored by Rice University, Oct. 22-25, 1974, Houston, Texas, Program and Abstracts, p. 110.

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