Light emitting module and lighting system

摘要

A light emitting module (10a) includes a toric sealing unit (3a) which seals blue LEDs (2a) arranged in a toric shape on a substrate (1) from above, and a sealing unit (5a) which seals red LEDs (4a) arranged in the vicinity of a center of the toric shape of the blue LEDs (2a). The sealing unit (5a) is formed to fill the inside of the toric shape of the toric sealing unit (3a). The sealing unit (5a) has a refractive index of light higher than that of the toric sealing unit (3a). The light which are emitted from the blue LEDs (2a) and the red LEDs (4a), are refracted on the interface between the sealing unit (3a) and sealed gas, and proceed to the direction of the sealed gas, thereby being composed appropriately.