At the time of inspection, the control device lights one or more LED arrays 400 including the position of the electronic device 500 to be inspected and the LED arrays 400 surrounding the LED arrays 400 to emit light to the electronic device 500. Here, as an example, the electronic device 500 is present across the area of two LED arrays 400. Therefore, the LEDs 41 are lighted within an area 401 including a total of twelve LED arrays 400 of the two LED arrays 400 and ten LED arrays 400 surrounding the two LED arrays 400, and the light is emitted to the electronic device 500. It should be noted that, in the following, within the area 401, an area including the two LED arrays 400 where the electronic device 500 is present is referred to as a presence area 401A, which is indicated by a broken line in FIG. 4.

The tester 14 causes a current to pass through the electronic device 500 via the probe 16 to inspect the electronic device 500. It should be noted that, in FIG. 4, the area 401 of the LED arrays 400 that emit light is hatched. Also, in FIG. 3, the light emitted from the light emission mechanism 40 is illustrated by solid arrows B.