Low-pressure mercury vapor discharge lamp

Details Low-pressure mercury vapor discharge lamp Low-pressure mercury vapor discharge lamp

1983-12-19

1987-02-17

DeMeo, Palmer C.

Electric lamp and discharge devices

With luminescent solid or liquid material

With gaseous discharge medium

H01J 6144

Patent

active

046442235

ABSTRACT:
A low-pressure mercury vapor discharge lamp having a very satisfactory color rendition (R(a,8).gtoreq.85) and having a color temperature of at least 3200 K. and a color point located on or near the Planckian locus. The lamp is provided with a luminescent layer comprising:

REFERENCES:
patent: 2143077 (1939-01-01), Leverenz
patent: 3294699 (1966-12-01), Lange
patent: 3595802 (1971-07-01), Blasse
patent: 3925239 (1975-12-01), Wanmaker et al.
patent: 4174294 (1979-11-01), Murakami et al.
patent: 4319161 (1982-03-01), Looye et al.

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