ENCAPSULATING SHEET, PRODUCING METHOD OF OPTICAL SEMICONDUCTOR DEVICE, OPTICAL SEMICONDUCTOR DEVICE, AND LIGHTING DEVICE

摘要

An encapsulating sheet, encapsulating an optical semiconductor element, includes a first layer which contains a phosphor and a second layer which contains a phosphor, is laminated on the first layer, and encapsulates the optical semiconductor element. The ratio of the volume of the phosphor in the first layer to that of the phosphor in the second layer is 90:10 to 55:45.