Patent ID: 6921878

Claim:
A warmth-keeping structure of cold cathode lamp used in a scanner, comprising: a cold cathode lamp powered by a first power source to radiate; a soft electric heating component wound around the surface of said cold cathode lamp, two ends of said soft electric heating component being respectively joined at two sides of said cold cathode lamp, said soft electric heating component being powered by a second power source to heat in advance; wires connecting the second power source to the soft electric heating component at both ends of the component at two junctions located at respective ends of the soft electric heating component; and two insulating components respectively joined at the joint portions at the two sides of said electric heating component and said cold cathode lamp, and the heating component is a soft electric heating sheet, the heating sheet being connected to the insulating components at both sides of the cold cathode lamp such that the insulating components cover the two junctions for the soft electric heating component and the wires; wherein the soft electric heating component is wound from one side of the cold cathode lamp to the other side; and whereby the ambient temperature of said cold cathode lamp can be raised before the cold cathode lamp radiates by heating the soft electric heating sheet.