| 摘要 |
PURPOSE: To provide a circular fluorescent lamp and its luminaire in which indirect lighting can be conducted by a circular fluorescent lamp, and also the detaching and attaching of the circular fluorescent lamp can be conducted without removing the luminaire main body. CONSTITUTION: A glass tube 1 is bent into approximately circle-like, the respective ends of the glass tube 1 are respectively sandwiched in bases 22 having electrode portions F2, a gap A of L2 (>L1) in width is provided between the tips of the respective electrodes F2 so as to form a circular fluorescent lamp La13. A suspending cord 6 having a wire diameter of L1 is interposed in the gap A in order to constitute so as to fit the circular fluorescent lamp La13 on the top face of a luminaire main body 4 and so as to exchange the same. Thereby, it is possible to obtain the circular fluorescent lamp La13 and its luminaire in which indirect lighting can be conducted by a circular fluorescent lamp La13, and also the detaching and attaching of the circular fluorescent lamp La13 can easily be conducted without removing the luminaire main body 4. |
