Patent ID: 11931490
Assignee: SEOUL VIOSYS CO., LTD.
Field: Chemical engineering (Chemistry)
Classification: CPC A  F  B  Y | IPC A  F

Claim 0:
1. An air purification module, comprising:
a photocatalyst filter configured to purify air flowing therethrough; and
a light source sequentially arranged relative to the photocatalyst filter in a selected direction;
the light source being spaced apart from the photocatalyst filter and providing light to the photocatalyst filter, the light source comprising a substrate and a light emitting device disposed on the substrate,
wherein the substrate is disposed along a direction from the photocatalyst filter,
wherein the substrate further includes a photocatalyst-facing region corresponding to the photocatalyst filter and having first apertures and an outer region disposed outside the photocatalyst-facing region and having second apertures,
wherein a size of the first apertures is greater than a size of the second apertures.