OPTICAL SHUTTER FOR A BACTERICIDAL IRRADIATOR Russian patent published in 2020 - IPC A61L9/20 

FIELD: devices for air sterilization.

SUBSTANCE: invention relates to devices for air sterilization using bactericidal ultraviolet radiation. Disclosed is an optical shutter for a bactericidal irradiator, arranged at the inlet and / or outlet of the cavity of the bactericidal irradiator, which is at least one perforated layer with a surface facing the cavity of the irradiator, diffusively reflecting bactericidal radiation, wherein total thickness of perforated layer H is not less than minimum transverse size of perforation and side surface of perforation is made diffusively reflecting bactericidal radiation.

EFFECT: invention provides significant increase in efficiency and productivity of bactericidal irradiator.

6 cl, 8 dwg