ILLUMINATOR

摘要

A light guide plate 40 comprises: an annular part 41 formed in an annular shape along an element array of multiple light emitting elements 22; and an annular inner part 42 formed on an annular inside of the annular part 41 continuously with the annular part 41. The annular part 41 comprises: an element array-facing part 44 which is a part facing the element array and which has an incident surface 44b to allow light emitted from the light emitting elements 22 to enter; and a first reflecting part 45 which is a part located closer to the annular inner part than the element array-facing part 44, and which has a reflecting surface for reflecting the light entering from the incident surface 44b toward the annular inner part 42. The first reflecting part 45 comprises a first light scattering region 45b having a light scattering treatment applied thereto.