A surface light source equipment includes a light source and a light
conductive plate having a light outgoing surface from which a light
introduced from the light source outgoes. The light conductive plate is
configured so tat the outgoing light is spread across substantially the
entire surface of the light outgoing surface, and a plurality of patterns
for reflection of a light conducted in the light conductive plate is
formed on an opposite surface to the light outgoing surface of the light
conductive plate. The respective patterns are structurcd such that, as
viewed from a direction perpendicular to the light outgoing surface, a
light is incident from a substantially fixed direction determined for
every pattern. Each of the patterns has an inclined surface on a light
incident side. The inclined surface substantially wholly shields both
side surfaces of the pattern, as viewed from a direction of light
incidence.