Low-pressure mercury discharge lamp and illumination panel...

Details Low-pressure mercury discharge lamp and illumination panel... Low-pressure mercury discharge lamp and illumination panel...

H - Electricity

01

J

H01J 61/42 (2006.01) H01J 61/09 (2006.01) H01J 61/30 (2006.01) H01J 61/78 (2006.01)

Patent

CA 2103366

2103366 9320579 PCTABS00027 The invention relates to a meander-shaped low-pressure mercury discharge lamp with cold electrodes (7, 8), in particular for use in an illumination panel for a liquid crystal display, in which lamp the geometry of the tubular lamp vessel (1) bent into a meander shape is so chosen, for obtaining a good homogeneity of the luminance and a high luminous efficacy, that the length of the discharge path is between 250 and 1000 times the internal diameter of the lamp vessel (1). The internal diameter of the lamp vessel (1) preferably has a value of between 2.0 and 3.5 mm.

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