LIGHT GUIDE BODY AND ILLUMINATION DEVICE

摘要

A light guide body in which luminance variation when light is caused to enter the light guide body from a portion of one side of the body is minimized. The light body (1) has a first light path change section (21) and second light path change section (22) that are in that incident region (S1) of a first side (11) where light emitting elements (12) are arranged facing each other. The first light path change section (21) is formed such that light enters directly to it from the light emitting elements (12) and refracts the incident light such that the absolute value of the angle formed between the light and a reference line (L) perpendicular to an end surface (11a) of the first side (11) is greater. The second light path change section (22) is formed at a position away from the end surface (11a) of the first side (11) and other than the position of a light path (31) of light having passed the first light path change section (21). Light emitted from the light emitting elements (12) is reflected such that the absolute value of the angle formed between the light and the reference line (L) perpendicular to the end surface (11a) of the first side is greater.