Light-emitting element, detection device, and processing apparatus

Abstract

According to one embodiment, a light-emitting element includes a substrate, a first electrode, a first layer, a second electrode, a light-emitting layer, and a second layer. The substrate, the second electrode, and the first layer are light-transmissive. A refractive index of the first layer is lower than a refractive index of the substrate. At least a portion of the first layer is provided between the first electrode and a portion of the substrate. The second electrode is provided between the first electrode and at least a portion of the first layer. The light-emitting layer is provided between the first electrode and the second electrode. The second layer is light-transmissive. The second layer is configured to modify a travel direction of light incident on the second layer. At least a portion of the second layer is provided between the first electrode and at least a portion of the first layer.

Dependencies are inferred from the claim text.