LIGHT-EMITTING DEVICE

摘要

The present invention provides a light-emitting device with which it is possible to efficiently suppress a rise in the temperature of a phosphor in a phosphor member. The present invention is characterized in being provided with a light source (20) for radiating excitation light (2), a phosphor member (10) for emitting fluorescence upon incidence of the excitation light (2) from the light source (20), a cooling medium (4) for immersing the phosphor member (10), a container (30) for accommodating the cooling medium (4), and a cooling mechanism (40), connected to the container (30), for cooling the cooling medium (4), the container (30) having an incidence part (31) for letting the excitation light (2) from the light source (20) enter the inside of the container (30) and an emission part (32) for letting the fluorescence (3) from the phosphor member (10) be emitted to the outside of the container (30).