| 摘要 |
<P>PROBLEM TO BE SOLVED: To use a lighting system which is a ceiling direct-mounted type one or is a pendant type one, also as a downlight. <P>SOLUTION: An apparatus body 1 is mounted on a ceiling 200, and a fluorescent lamp lighting circuit 4 and an LED lighting circuit 5 are respectively connected to an AC power supply through a wall switch. When the wall switch is operated and the fluorescent lamp lighting circuit 4 is connected to the AC power supply, a fluorescent lamp 11 is lightened and light is reflected on a reflector 10 to illuminate a room. When the wall switch is operated and the LED lighting circuit 5 is connected to the AC power supply, LED luminous bodies 8, 9 are lightened and light is transmitted through transparent covers 6, 7 to illuminate a surface of the ceiling 200, and light is randomly reflected. When the wall switch is operated to light only the fluorescent lamp 11, the lighting system is used for direct lighting, and when the LED luminous bodies 8, 9 are only lightened, the lighting system is used for indirect lighting. <P>COPYRIGHT: (C)2010,JPO&INPIT |
