| 摘要 |
<p>A light guide body (21) has, on at least one side end of a light guide body cross-section that orthogonally intersects the longitudinal direction of the light guide body (21), a fixing section (21b), which is formed thinner than the thick section (21c), i.e., the center section of the cross-section that orthogonally intersects the longitudinal direction of the light guide body (21), and which fixes the light guide body (21) to a chassis. Light scattering bodies (23) are disposed at different densities in a region where the thickness between the thick portion (21c) and the fixing section (21b) varies in the direction orthogonally intersecting the longitudinal direction of the light guide body (21), and in other regions. Thus, the light guide body can be fixed by means of the fixing section (21b), and optical characteristic influence due to having the thin fixing section (21b) provided therein can be compensated by providing the light scattering bodies (23) disposed with adjusted densities in the lateral direction.</p> |
