Fluorescent lamp with integral thermal-insulating plastic jacket

Details Fluorescent lamp with integral thermal-insulating plastic jacket Fluorescent lamp with integral thermal-insulating plastic jacket

1978-01-31

1979-04-03

Demeo, Palmer C.

Electric lamp and discharge devices

With temperature modifier

Double wall, jacket or casing for envelope

313 44, 313312, 313493, H01J 6142, H01J 6152

Patent

active

041479475

ABSTRACT:
The light output of a fluorescent lamp is improved under cold temperature operating conditions by enclosing the envelope in a jacket of light-transmitting plastic material that has a plurality of air pockets or bubbles formed therein. The pockets of entrapped air collectively function as a thermal blanket for the envelope which conserves the heat produced by the lamp during operation without obstructing the generated light rays. The "thermo-bubble" jacket is preferably fabricated from flexible two-ply plastic so that it can also serve as a lightweight protective component for the lamp when it is packed with other jacketed lamps in a shipping container.

REFERENCES:
patent: 2131888 (1938-10-01), Harris
patent: 3093448 (1963-06-01), Kirkpatrick et al.
patent: 3426234 (1969-02-01), Hayasaka et al.
patent: 3808495 (1974-04-01), Win

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