| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a lighting system easily adaptable to enlargement of the system, and advantageous to improving productivity and thinning the system because uneven luminance in its frontward direction is dissolved without strictly aligning a light source with other members. <P>SOLUTION: A function taking into consideration of only outgoing light intensity from three adjacent linear light sources is defined as g(X)=f(X-D)+f(X)+f(X+D) by using the distance D between the centers of the linear light sources, the distance H between the linear light source and a light control member, and outgoing light intensity f(X) in the normal line direction at a position coordinate X in the X direction (light source position X=0), the g(X) is set within a range in which the ratio of the minimum value g(X)<SB>min</SB>and the maximum value g(X)<SB>max</SB>, g(X)<SB>min</SB>/g(X)<SB>max</SB>is not less than 0.6, within a range of -D/2≤X≤D/2. Thereby, the distribution of the outgoing light intensity becomes almost uniform by effect of a reflector, the sum of the distribution of the outgoing light intensity in the frontward direction of each linear light source is almost fixed, and uneven luminance in the frontward direction can be dissolved. <P>COPYRIGHT: (C)2007,JPO&INPIT |
