Bulb-shaped fluorescent lamp and illumination device

Details Bulb-shaped fluorescent lamp and illumination device Bulb-shaped fluorescent lamp and illumination device

2006-05-30

2006-05-30

Vu, David (Department: 2828)

Electric lamp and discharge devices

With gas or vapor

Envelope with particular structure

C313S493000, C315S056000

Reexamination Certificate

active

07053554

ABSTRACT:
A bulb-shaped fluorescent lamp with an emission bulb having a bent tube and a lighting device having a circuit board and electronic parts mounted on the circuit board. The lighting device has a cover member with a cap and a holder for holding the emission bulb and the circuit board has a great part of its electronic parts disposed on the cap side. The lighting device has a fine tube that extends from the end of a portion of the bent tube toward the cap side within the cover member, and protrudes so that the surface temperature of a portion of said fine tube is kept in the range between 40–70°C. at the time of normal lighting and/or the fine tube extending from the end of the bent tube toward the cap side within the cover member protrudes from the end of said bent tube by 25–70 mm.

REFERENCES:
patent: 4645972 (1987-02-01), Takao et al.
patent: 2002/0109462 (2002-08-01), Nishio et al.
patent: 2001-243913 (2001-09-01), None
patent: 3262168 (2001-12-01), None

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