Discharge lamp having multiple constrictions

Details Discharge lamp having multiple constrictions Discharge lamp having multiple constrictions

1987-11-02

1989-04-25

Boudreau, Leo H.

Electric lamp and discharge devices

With luminescent solid or liquid material

With gaseous discharge medium

313611, 313634, H01J 6133

Patent

active

048251259

ABSTRACT:
A low pressure discharge lamp, particularly a compact fluorescent lamp, having a plurality of constricting portions axially spaced apart and extending about the circular periphery of the envelope. The constricting portions, which include defined end segments projecting within the envelope, constrict the plasma discharge and spatially separate at least one of the discharge processes occurring within the plasma discharge and cause the separated process to take place in a different portion within the envelope so that the conditions for energy input and energy dissipation may be independently optimized.

REFERENCES:
patent: 2166951 (1939-07-01), Germer
patent: 2916645 (1959-12-01), Lemmers et al.
patent: 2973447 (1961-02-01), Aicher et al.
patent: 3098945 (1963-07-01), Lemmers
patent: 3897233 (1975-07-01), Szilagyi
patent: 3988633 (1976-10-01), Shurgan et al.
patent: 4508993 (1985-04-01), Anderson
patent: 4736134 (1988-04-01), Lagushenko et al.

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