公开(公告)号：US20230380720A1

公开(公告)日：2023-11-30

申请号：US18031662

申请日：2021-10-14

Applicant: IMEC VZW

Inventor： Peter PEUMANS ,  Benjamin JONES ,  Xavier ROTTENBERG ,  Chengxun LIU ,  Ahmed TAHER

IPC: A61B5/097 ,  A61B5/00

CPC classification number: A61B5/097 ,  A61B5/0082

Abstract: A collecting device (200) for collection of particles and presentation of collected particles for analysis comprises: a first layer (202) and a second layer (220) spaced apart for defining a particle collection chamber (240); wherein the first layer (202) is configured to receive a flow of air (104) carrying airborne particles, wherein the first layer (202) comprises a plurality of inlet nozzles (210) configured to extend through the first layer (202) for transporting the flow of air (104) therethrough; wherein the inlet nozzles (210) are configured to face a first surface (222) of the second layer (220) for capturing airborne particles in the flow of air (104) entering the particle collection chamber (240) by impaction of airborne particles; wherein the collecting device (200) is configured to provide optical access for performing a measurement, based on light, of airborne particles collected in the particle collection chamber (240).

公开(公告)号：US20210364409A1

公开(公告)日：2021-11-25

申请号：US16957101

申请日：2018-12-19

Applicant: IMEC VZW

Inventor： Chengxun LIU ,  Dries VERCRUYSSE ,  Niels VERELLEN ,  Abdulkadir YURT

IPC: G01N15/14

Abstract: A device (110) for illuminating a particle comprises: a light waveguide (112; 412a, 412b; 512a, 512b) arranged on a substrate (114); an output coupler (118) configured to output a light beam (150; 450a, 450b; 550a, 550b) forming a sheet-like shape having a cross-section which has an extension in a first direction being larger than a size of a particle; and a fluidic channel (116; 416; 516) arranged on the substrate (114) for guiding a flow of particles along a longitudinal direction of the fluidic channel (116; 416; 516); wherein the sheet-like shape of the light beam (150; 450a, 450b; 550a, 550b) is arranged within the fluidic channel (116; 416; 516) and the first direction of the cross-section of the light beam (150; 450a, 450b; 550a, 550b) forms an angle to the longitudinal direction of the fluidic channel (116; 416; 516). A system (100) for imaging the particle comprises the device, an array (130; 430a, 430b; 530) of light-detecting elements (132; 432a, 432b; 532); and a lens (120) to converge light towards the array (130; 430a, 430b; 530) such that each light-detecting element (132; 432a, 432b; 532) detects light originating from a corresponding position in the fluidic channel (116; 416; 516).