Device for measuring two-dimensional flicker

A device for measuring two-dimensional flicker for two-dimensionally measuring flicker of a measurement target object, the device for measuring two-dimensional flicker comprising:

• a plurality of two-dimensional sensors individually including a plurality of photoelectric conversion elements that are two-dimensionally arranged in a row direction and a column direction, the plurality of two-dimensional sensors having a partial readout function of reading out only a pixel value of some of photoelectric conversion elements included in partial readout regions that have been set, among the plurality of photoelectric conversion elements;
• and
• a hardware processor that:
• two-dimensionally sets a plurality of measurement regions on the measurement target object;
• individually acquires each pixel in the plurality of measurement regions, by setting each of the plurality of partial readout regions of the plurality of two-dimensional sensors, in each of a plurality of partial imaging regions obtained by dividing an entire imaging region corresponding to the measurement target object into the plurality of partial imaging regions;
• and
• individually obtains a flicker value of the plurality of measurement regions, based on each pixel value in the plurality of measurement regions,
• wherein:
• each of the plurality of two-dimensional sensors sequentially scans in the column direction to perform a collective readout operation of collectively reading out each pixel value of the plurality of photoelectric conversion elements arranged in the row direction, and
• the hardware processor sets the plurality of partial imaging regions by dividing the entire imaging region into pieces of a number of the two-dimensional sensors with a division boundary line being parallel to the row direction.