Patent ID: 11940138
Assignee: DENKA COMPANY LIMITED
Field: nan (nan)
Classification: CPC nan | IPC F

Claim 6:
7. A light emitting device comprising:
a light emitting substrate including an insulating substrate, a circuit pattern layer disposed on one surface of the insulating substrate, a plurality of light emitting elements bonded to the circuit pattern layer, and a phosphor layer that is disposed on the one surface of the insulating substrate without contacting a top surface of each of the plurality of light emitting elements and includes a phosphor in which a light emission peak wavelength, in a case where light emitted by at least one light emitting element of the plurality of light emitting elements is used as excitation light, is in a visible light region, the light emitting substrate emitting a composite light of light emitting color of the at least one light emitting element and light emitting color of the phosphor layer;
a flat heat pipe that removes heat generated by the phosphor layer, a temperature of which is increased with light emission of the phosphor layer, and heat from the light emitting substrate, a temperature of which is increased with light emission of the at least one light emitting element; and
a cooling fan that cools the flat heat pipe.