| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a light source unit which can flexibly accommodate change of the number of LEDs, is low-cost and is thin, and which suppresses occurrence of luminance unevenness and uncomfortable glare, and further is able to suppress color irregularities on an illuminated surface as much as possible even if color temperature for a radiation angle of an LED itself varies significantly. <P>SOLUTION: The light source unit 10 includes: an LED mounting substrate 2 having a plurality of LEDs mounted on the mounting surface and fixed to a reflective fixing member 3; a lens array 4 corresponding to each mounted LED, and having lens function parts 50 for emitting incident light with a narrower light distribution characteristic than a light distribution characteristic of the corresponding LED, each lens function part 50 being fixed and opposed to a mounting surface of the LED mounting substrate 2 so as to face the corresponding LED; and a translucent light diffusion member 6 fixed to a side opposite to the LED mounting substrate 2 with respect to the lens array 4, and allowing light emitted from each lens function part 50 of the lens array 4 to transmit therethrough. <P>COPYRIGHT: (C)2013,JPO&INPIT |
