Light sources

Details Light sources Light sources

1990-08-07

1993-01-26

Yusko, Donald J.

Electric lamp and discharge devices

With luminescent solid or liquid material

With gaseous discharge medium

313489, 313493, 428690, 220 21R, H01J 170, H01J 504

Patent

active

051824906

ABSTRACT:
A fluorescent tube (2) is made of a plastics material containing at least one organic fluorescent dye and attached to the inner surface of this tube is a barrier layer (3) for absorbing ultraviolet radiation, and attached to the inner surface of the layer (3) there is a phosphor layer (3a).

REFERENCES:
patent: T861024 (1969-04-01), Bloom et al.
patent: 3358167 (1967-12-01), Shanks
patent: 3720826 (1973-03-01), Gillmore et al.
patent: 4678966 (1987-07-01), Mager
patent: 4691140 (1987-09-01), Sakakibara et al.
patent: 4751148 (1988-06-01), Popma et al.
patent: 4859903 (1989-08-01), Minematu et al.
patent: 4911830 (1990-03-01), Bromley et al.

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