Light emitting module and lighting device

摘要

A light emitting module according to one embodiment includes a substrate; a light emitting body disposed on the substrate; and a phosphor layer having a first phosphor and a second phosphor which are excited by emitted light of the light emitting body. The first phosphor has a light emitting peak whose half-value width is 20 nm or less in a wavelength range from 610 nm to less than 650 nm, and the second phosphor has the light emitting peak in the wavelength range between a peak wavelength of a light emitting spectrum of the light emitting body and the peak wavelength of the light emitting spectrum of the first phosphor. Then, a distribution of the first phosphor in the phosphor layer has density gradient, where the density of the first phosphor increases toward at least one end of the phosphor layer in a direction perpendicular to the substrate.

主权项

1. A light emitting module comprising:
a substrate; a light emitting body disposed on the substrate; and a phosphor layer having a first phosphor and a second phosphor which are excited by emitted light of the light emitting body, the first phosphor having a light emitting peak whose half-value width is 20 nm or less in a wavelength range from 610 nm to less than 650 nm, the second phosphor having the light emitting peak in the wavelength range between a peak wavelength of a light emitting spectrum of the light emitting body and the peak wavelength of the light emitting spectrum of the first phosphor, and a distribution of the first phosphor in the phosphor layer having density gradient, where the density of the first phosphor increases toward at least one end of the phosphor layer in a direction perpendicular to the substrate.