ILLUMINATION DEVICE AND IMAGE-READING DEVICE PROVIDED WITH ILLUMINATION DEVICE

摘要

One embodiment of the disclosed illumination device is provided with a light source unit and a reflective member. The light source unit is formed in a linear shape, and has a light-emitting section that emits light. The reflective member has a reflective surface that reflects light emitted from the light-emitting section of the light source unit to a predetermined area. The reflective surface has a cross section that is a broken-line shape having a plurality of line segments along a benchmark ellipse having a major axis that forms a predetermined angle with respect to the direction perpendicular to the predetermined area in the direction perpendicular to the lengthwise direction of the light-emitting section of the light source unit.