| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a planar lighting fixture which is attached to an attachment hole of various sizes without any shifting. <P>SOLUTION: Shifting of the planar lighting fixture 10 is prevented by having an inclined surface 25a abutted to the attachment hole 12 when the planar lighting fixture 10 is attached to the attachment hole 12 by an attaching section 30 on a back surface 21a of a planar light-emitting section 21 in a case when size d of the attachment hole 12 is smaller than the size D2 of an outer side end of the inclining surface 25a of the planar light-emitting section 21 and greater than the size D1. Furthermore, when the size d is smaller than the size D1, although discharge of heat is bad and the temperature of the planar lighting fixture 10 is made high, since the periphery edge section of the attachment hole 12 is abutted to the back surface 21a of the planar light-emitting section 21 and attached afloat, discoloring due to heat in an attached member such as a ceiling 11 is prevented. Meanwhile, when the size d is greater than the size D2, discharging property is great and discoloring due to heat in the attached member such as the ceiling 11 is prevented and since a flat section 25b on the outer side of the inclining surface 25a is brought into contact with the attached member such as the ceiling 11, the appearance is improved. <P>COPYRIGHT: (C)2010,JPO&INPIT |
