To provide a lighting system capable of improving light utilization efficiency and a reflection type liquid crystal display system having the same applied.

This system is provided with a first light guiding means 200 for emitting light entering through one side surface from whole surface uniformly, a second light guiding means 120 arranged in adjacent of the one side surface of the first light guiding means 200 and emitting light entering from either of both side surfaces to the one side surface mentioned before of the first light guiding means 200, and one or more light sources 110 arranged in adjacent of either of both side surfaces of the second light guiding means 120 and supplying light to the second light guiding means. The second light guiding means has a shape that distance between an emission surface of the second light guiding means and a surface opposing to the emission surface gets smaller as light flux distribution of light emitted from one or more light source 110 gets smaller. Consequently, probability of route change of light emitted from the light source 110 is increased even if the number of the light source 110 provided on one side of the second light guiding means 120 increases.