Lighting device having improved light emission and clean air function

Abstract

A light emitting device (100) includes a phosphor application printed wiring board (30) in which a phosphor layer (36) is provided on a substrate surface, a first light emitting unit (20A) provided in the phosphor application printed wiring board (30) and outputting light having a peak wavelength in a wavelength region of visible light, a second light emitting unit (20B) provided in the phosphor application printed wiring board (30) and outputting light having a peak wavelength in a range of 315 nm to 470 nm (that is, near-ultraviolet ray), a photocatalyst unit (160) including a substance (photocatalyst) that undergoes a photocatalytic reaction with light of a second light emitting unit (20B), and a cover member (110) (lamp cover) that covers the phosphor application printed wiring board (30). The phosphor layer (36) is provided separately from the first light emitting unit (20A) and the second light emitting unit (20B).

Dependencies are inferred from the claim text.