| 摘要 |
<P>PROBLEM TO BE SOLVED: To enhance light utilization efficiency in a lighting fixture with a solid-state light-emitting element and an optical member combined. <P>SOLUTION: The lighting fixture 1 is provided with a light-emitting part 2 having a plurality of LEDs 22, a light distribution control part 3 having a plurality of lenses 32 each fitted to oppose to each LED 22, and an adjusting part 4 retaining the light distribution control part 3 in free rotation. Each lens 32 includes a concave part 32a in which the LED 22 is housed on a surface of the LED 22 side. The adjusting part 4 rotates the light distribution control part 3 after taking off the LED 22 from the concave part 32a by enlarging an interval between the light-emitting part 2 and the light distribution control part 3, then making the interval small with the concave part 32a in a state faced to the LED 22. With this, since the LED 22 can be housed in the concave part 32a of the lens 32 with the LED 22 out of contact with the lens 32, the light emitted from the LED 22 to its sideways is made incident to the lens 32, wherefore, light utilization efficiency of light emitted from the LEDs 22 is enhanced. <P>COPYRIGHT: (C)2013,JPO&INPIT |
