Fluorescent lamp system including light blocking members to crea

Details Fluorescent lamp system including light blocking members to crea Fluorescent lamp system including light blocking members to crea

1997-04-15

1999-04-27

Wong, Don

Electric lamp and discharge devices: systems

With load device temperature modifier

Electric heater for the load device

315 32, 315 49, 362351, H01J 724

Patent

active

058982752

ABSTRACT:
A fluorescent light source includes a fluorescent lamp, lamp bases attached to opposite ends of the fluorescent lamp, and an electrically insulating substrate connected to the fluorescent lamp. A heating element is positioned on the fluorescent lamp, and a first and second pair of power traces are formed on the electrically insulating substrate. The first pair of power traces are connected to the heating element to provide power thereto. The second pair of power traces are connected to a pair of electrical conductors that provide power to the fluorescent lamp. This fluorescent lamp can be used in a replaceable fluorescent light source unit for a document scanner. The replaceable fluorescent light source unit includes a housing, lamp base receiving members attached to the housing, and registration notches to properly align the fluorescent lamp. Lastly, the fluorescent lamp source includes light blocking material to provide a uniform illumination profile along the length of the lamp.

REFERENCES:
patent: 3887816 (1975-06-01), Colley
patent: 4248517 (1981-02-01), Nishikawa
patent: 5029311 (1991-07-01), Brandkamp et al.
patent: 5189340 (1993-02-01), Ikeda
patent: 5282117 (1994-01-01), Fritts
patent: 5616989 (1997-04-01), Tallie et al.
patent: 5645337 (1997-07-01), Gleckman

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