Test apparatus, test method, and computer-readable storage medium

A test method comprising:

• electrically connecting an electrical connection unit to a terminal of each of a plurality of light emitting devices to be tested;
• collectively irradiating the plurality of light emitting devices with light;
• measuring a photoelectric signal which is obtained by photoelectrically converting irradiated light and output via the electrical connection unit by each of the plurality of light emitting devices;
• changing an intensity of the light irradiated in the irradiating;
• and
• determining a quality of each of the plurality of light emitting devices on a basis of a measurement result of the measuring in a case where the intensity is changed in the changing.

A test apparatus comprising:

• an electrical connection unit configured to be electrically connected to a terminal of each of a plurality of light emitting devices to be tested;
• a light source unit configured to collectively irradiate the plurality of light emitting devices with light;
• a measuring unit configured to measure a photoelectric signal which is obtained by photoelectrically converting light irradiated by the light source unit and output via the electrical connection unit by each of the plurality of light emitting devices;
• a light source control unit configured to change a wavelength of the light irradiated by the light source unit within a predetermined range including a predetermined reaction wavelength of the plurality of light emitting devices;
• and
• a determination unit configured to determine a quality of each of the plurality of light emitting devices on a basis of a measurement result by the measuring unit in a case where the wavelength is changed by the light source control unit.

A test method comprising:

• electrically connecting an electrical connection unit to a terminal of each of a plurality of light emitting devices to be tested;
• collectively irradiating the plurality of light emitting devices with light;
• measuring a photoelectric signal which is obtained by photoelectrically converting irradiated light and output via the electrical connection unit by each of the plurality of light emitting devices;
• changing a wavelength of the light irradiated in the irradiating within a predetermined range including a predetermined reaction wavelength of the plurality of light emitting devices;
• and
• determining a quality of each of the plurality of light emitting devices on a basis of a measurement result of the measuring in a case where the wavelength is changed in the changing.