公开(公告)号：US20240198382A1

公开(公告)日：2024-06-20

申请号：US18589696

申请日：2024-02-28

Applicant: IMEC VZW ,  Katholieke Universiteit Leuven

Inventor： David CHEYNS ,  Yongbin JEONG ,  Xavier ROTTENBERG

IPC: B06B1/06 ,  A61B8/00 ,  B06B1/02

CPC classification number: B06B1/0629 ,  B06B1/0207 ,  B06B1/0685 ,  A61B8/4488 ,  B06B2201/76

Abstract: The present invention provides a flexible ultrasound transducer for an ultrasound monitoring system for examining a curved object. The ultrasound transducer comprises an integrated circuit structure and a multi-layered structure, said multi-layered structure comprising an array of ultrasound transducing elements arranged in a first layer structure and configured for generating ultrasonic energy propagating along a main transducer axis Z and an array of control circuits arranged in a second layer structure, and wherein the array of control circuits and the integrated circuit structure are configured for operating the array of ultrasound transducing elements in said first layer structure, Further, the multi-layered structure comprises at least one flexible layer arranged so that the bending flexibility of the multi-layered structure permits the ultrasound transducer to form a continuous contact with said curved object during operation.

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：US20230378720A1

公开(公告)日：2023-11-23

申请号：US18197841

申请日：2023-05-16

Applicant: IMEC VZW

Inventor： Philippe SOUSSAN ,  Charles CAER ,  Xavier ROTTENBERG

IPC: H01S5/183 ,  H01S5/042 ,  H01S5/42 ,  H01S5/026

CPC classification number: H01S5/18386 ,  H01S5/18361 ,  H01S5/0421 ,  H01S5/423 ,  H01S5/026

Abstract: According to an aspect of the present inventive concept there is provided a light emitting unit, for emitting laser light at a laser wavelength, arranged on a planar surface of a substrate. The unit comprises a first reflective element to reflect light at the laser wavelength, a gain element to amplify the light, and a second reflective element to partially reflect the light, and to emit the laser light. The elements form a stack of layers integrated onto the planar surface. Each layer is parallel with the planar surface, and the gain element is arranged between the first and second reflective elements.
The unit comprises a beam shaping element integrated with the stack. The beam shaping element is configured to shape the emitted laser light. The beam shaping element comprises a plurality of structures spaced apart in a direction of an extension of a layer of the beam shaping element. A size of the structures and/or a distance between adjacent structures is smaller than the laser wavelength.

公开(公告)号：US20210088969A1

公开(公告)日：2021-03-25

申请号：US16975113

申请日：2019-02-19

Applicant: IMEC VZW

Inventor： Xavier ROTTENBERG ,  Kristof LODEWIJKS

IPC: G03H1/22 ,  G02F1/135 ,  G03H1/02

Abstract: An optical device (100) for forming a distribution of a three-dimensional light field comprises: an array (102) of unit cells (104), a unit cell (104) being individually addressable for switching the optical property of the unit cell (104) between a first and a second condition; wherein the unit cells (104) are configured to be selectively active or inactive and wherein the array (102) comprises at least a first and a second disjoint subset (110; 112; 114; 116), and wherein the unit cells (104) in a subset (110; 112; 114; 116) are configured to be jointly switched from inactive to active, wherein the active unit cells (104) are configured to interact with an incident light beam (106) for forming the distribution of the three-dimensional light field; and wherein the optical device (100) is configured to address inactive unit cells (104) for switching the optical property of unit cells (104).

公开(公告)号：US20210003859A1

公开(公告)日：2021-01-07

申请号：US16979512

申请日：2019-03-04

Applicant: IMEC VZW

Inventor： Xavier ROTTENBERG ,  Kristof LODEWIJKS

IPC: G02B30/56 ,  H04N13/388

Abstract: An apparatus for displaying a three-dimensional image comprises: a light field generating unit (110), which is configured to receive an incident light beam (112) and generate a three-dimensional light field; and an image revealing medium (120), which is arranged to receive the three-dimensional light field generated by the light field generating unit (110), wherein the image revealing medium (120) comprises a fluid with bubbles or particles suspended in the fluid, wherein the bubbles or particles have a size in the range of 40-500 nm.

公开(公告)号：US20200319019A1

公开(公告)日：2020-10-08

申请号：US16840269

申请日：2020-04-03

Applicant: IMEC VZW ,  KATHOLIEKE UNIVERSITEIT LEUVEN

Inventor： Wouter Jan WESTERVELD ,  Roelof JANSEN ,  Xavier ROTTENBERG ,  Veronique ROCHUS

IPC: G01H9/00

Abstract: A sensor structure for an acoustical pressure sensor. The structure comprises an optical waveguide closed-loop resonator and a plurality of sensor elements, wherein the individual sensor elements of the plurality of sensor elements are configured to be affected by an acoustical pressure wave such that a physical property of the individual sensor element is changed. Further, the optical waveguide closed-loop resonator is arranged at said plurality of sensor elements and associated with each of the individual sensor elements of the plurality of sensor elements such that a resonance frequency of the optical waveguide closed-loop resonator is shifted due to the affected physical properties of all individual sensor elements of the plurality of sensor elements.