<p>This illumination device (100) is used in an external quality inspection apparatus for agricultural produce, the apparatus emitting light onto each item of agricultural produce (14) transported in one direction, and inspecting the external quality of the agricultural produce on the basis of light reflected from the agricultural produce. This illumination device (100) comprises an upper illumination unit (110) for emitting light onto the agricultural produce from above the agricultural produce (14), four lateral illumination units (121-124) for emitting light onto the agricultural produce from the side of the agricultural produce, and a control device for controlling the amount of light emitted from the upper illumination unit and the lateral illumination units. The control device (130) controls the emission time of the lateral illumination units (121-124) such that the illuminance at a first point falls within a range ±10% of the illuminance at a second point. At the first point, light emitted from
