COMPACT FLUORESCENT LAMP AND LIGHTING DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a compact fluorescent lamp 11 capable of reducing a size of a cover 13 and providing a roughly same appearance as that of general lighting bulbs by efficiently housing a lighting unit 17 inside a base 12.

SOLUTION: The base 12 is fitted to one end of the cover 13 and a light emitting tube 14 is supported by the cover 13 at the other end. Electronic parts 60 forming a lighting circuit 59 for lighting the light emitting tube 14 are mounted on a substrate 58 of the lighting unit 17. The substrate 58 is formed to have such a width dimension that allows the substrate to be inserted into the base 12 and is vertically disposed along a direction of a centerline of the base 12 at a position offset from the centerline of the base 12. Large electronic parts 60 among the electronic parts 60 are disposed on a surface of the substrate 58 which is largely spaced from the base 12. An electrolytic capacitor C2 among the large electronic parts 60 is mounted to a vertical direction with respect to the substrate 58 at a base side end part on one surface of the substrate 58, and is disposed inside the base 12.

COPYRIGHT: (C)2009,JPO&INPIT