Compact fluorescent lamp, self-ballasted fluorescent lamp...

Details Compact fluorescent lamp, self-ballasted fluorescent lamp... Compact fluorescent lamp, self-ballasted fluorescent lamp...

2006-05-09

2006-05-09

Vo, Tuyet (Department: 2821)

Electric lamp and discharge devices: systems

Combined load device or load device temperature modifying...

Discharge device load

C313S493000, C313S634000

Reexamination Certificate

active

07042158

ABSTRACT:
A compact self-ballasted fluorescent lamp which is equivalent to a typical light bulb is provided. The self-ballasted fluorescent lamp includes a cover, a lighting circuit, an arc tube-a base and a globe and formed into a shape whose outline dimensions are nearly identical to the standard dimensions of a typical light bulb. The arc tube is comprised of a plurality of U-shaped bent bulbs which have an inner tube diameter ranging from 6 to 9 mm and arranged in parallel with one another. Having a bulb height ranging from 50 to 60 mm and a discharge path from 200 to 300 mm long, the arc tube is designed such that the total luminous flux is not less than 700 lm with a lamp efficiency of not less than 60 lm/W when the lamp is lit at the lamp power of 7 to 15 W. An envelope comprising the cover and the globe has a height ranging from 110 to 125 mm, including the height of the base.

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