A surface light source conversion member, which converts emission light
from a light source to planar light, has a predetermined thickness at a
part thereof where a light incidence surface of a light guide, which is
opposed to the light source, is located. A reflector, which reflects
emission light from the light source toward the light incidence surface,
includes a clamp portion that clamps the surface light source conversion
member in a thickness direction thereof. The clamp portion contacts a
corner portion that is formed between a light emission surface of the
light guide and the light incidence surface of the light guide and is
separated from the light emission surface. The reflector creates a gap,
which is smaller than a predetermined thickness, between the light source
and the light incidence surface.