Inspecting tool for inspecting micro LED array panel

An inspecting tool for inspecting a micro light emitting diode (LED) array panel, comprising:

• an optical collector group configured to collect light emitted from a micro LED array included in the micro LED array panel;
• an image detector connected with the optical collector group to receive the light collected by the optical collector group, and configured to capture an image of the micro LED array;
• and
• a light measuring device electrically connected with the optical collector group to receive the light collected by the optical collector group, and configured to measure the light emitted from one or more portions of the micro LED array;
• wherein, the optical collector group is disposed above the micro LED array panel for collecting the light emitted from any position of the micro LED array;
• the optical collector group comprises a first optical collector and a second optical collector;
• wherein, the first optical collector is connected with the image detector;
• and, the second optical collector is electrically connected with the light measuring device;
• wherein, the first optical collector and the second optical collector is configured on a fixture element;
• and, the fixture element is rotatable at any direction.