Flat fluorescent lamp and structure of the same

Details Flat fluorescent lamp and structure of the same Flat fluorescent lamp and structure of the same

2006-07-21

2010-12-14

Williams, Joseph L (Department: 2889)

Electric lamp and discharge devices

With gas or vapor

Three or more electrode discharge device

Reexamination Certificate

active

07852000

ABSTRACT:
A flat fluorescent lamp structure comprising a first substrate, a second substrate, a wall structure, a phosphor layer, and a discharge gas is provided in the present invention. The second substrate is oppositely assembled to the first substrate to form a sealed space. The wall structure is utilized to separate the sealed space into a plurality of illuminating chambers. A tunnel penetrates the wall structure to communicate the illuminating chambers. In addition, the tunnel divides the adjacent illuminating chamber into a first illuminating sub-chamber and a second illuminating sub-chamber connecting with each other. The phosphor layer is formed on inner surfaces of the illuminating chambers. The discharge gas is filled in the illuminating chambers. A ratio of a length and a cross-section area of the tunnel defines a first coefficient, a ratio of a length and a cross-section area of the first illuminating sub-chamber defines a second coefficient, a ratio of a length and a cross-section area of the second illuminating sub-chamber defines a third coefficient, and a ratio of the first coefficient and the second coefficient or the third coefficient is greater than 1/20.

REFERENCES:
patent: 5479071 (1995-12-01), Lynn
patent: 6771330 (2004-08-01), Moon
patent: 2001/0004250 (2001-06-01), Kado et al.
patent: 2004/0189171 (2004-09-01), Bettinelli et al.
patent: 2006/0055296 (2006-03-01), Park et al.
patent: 594830 (1992-04-01), None

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