Luminescent device, optical coherence tomographic imaging apparatus provided with the luminescent device and control method of the luminescent device

摘要

A luminescent device including an upper electrode layer, a lower electrode layer and an active layer provided between these electrode layers, the device having such a structure that at least one electrode layer of the upper electrode layer and the lower electrode layer is provided in an in-plane direction of the active layer being divided into plural electrodes, current is injected into plural different regions of the active layer by the plural electrodes to cause emission in plural luminescent regions, and light emitted from one luminescent region of the plural luminescent regions enters in another luminescent region and exits. The device further includes a light receiving portion for detecting light that is emitted from one luminescent region of the plural luminescent regions and does not go through another luminescent region.

主权项

1. A luminescent device comprising an upper electrode layer, a lower electrode layer and an active layer provided between these electrode layers, the device having such a structure that at least one electrode layer of the upper electrode layer and the lower electrode layer is provided in an in-plane direction of the active layer being divided into plural electrodes, currents are injected into plural different regions of the active layer by the plural electrodes to cause emission in plural luminescent regions, and light emitted from one luminescent region of the plural luminescent regions enters in another luminescent region and exits,
wherein the device further comprises plural light receiving portions for detecting light that is emitted from each of the plural luminescent regions and does not go through another luminescent region, and wherein the device further comprises a control portion which controls a current injected into the active layer according to the intensity of the light detected by the plural light receiving portions.