2004-335426 is referenced by 77 patents.

PROBLEM TO BE SOLVED: To enable compliance with the standard for an existing straight tube type or circular tube type fluorescent lamp and easy conversion from fluorescent lamp type to light emitting diode lamp type, without requiring any modification to a fixture and enclosure for the existing straight tube type or circular tube type fluorescent lamp.SOLUTION: A fluorescent tube conversion type light emitting diode lamp comprises: a synthetic resin outer tube body made of a transparent or opaque pipe formed in a bar or ring shape; a base metal adjustably mounted to both open ends of the bar type synthetic resin outer tube body; an electrode pin attached to the base metal, or to the inside of the ring type synthetic resin outer tube; a bar type wiring board or a ring type wiring board mounted inside the bar type synthetic resin outer tube body; and a light emitting diode fixed to one side or both sides of the bar type wiring board or the ring type wiring board.

Title
Fluorescent lamp conversion type light emitting diode lamp
Application Number
2003-158660
Publication Number
2004-335426
Application Date
April 30, 2003
Publication Date
November 25, 2004
Inventor
Kobayashi Kunimitsu
Assignee
Shingo Kizai
IPC
F21Y
H01L 33/00
F21V 19/00
F21V 17/02
E01F 09/016
F21S 08/04