公开(公告)号：US20230375406A1

公开(公告)日：2023-11-23

申请号：US18197357

申请日：2023-05-15

Applicant: IMEC VZW ,  Katholieke Universiteit Leuven

Inventor： Vladimir PEJOVIC ,  David CHEYNS ,  Xavier ROTTENBERG ,  Kristof LODEWIJKS ,  Pawel MALINOWSKI ,  Yunlong LI ,  Gauri KARVE

IPC: G01J3/28 ,  G01J3/02 ,  H10K39/32

CPC classification number: G01J3/2823 ,  G01J3/021 ,  H10K39/32 ,  G01J2003/2826

Abstract: A light sensor for spectrally resolved light detection, said light sensor comprises: an upper reflective element; a lower reflective element; a photo-sensitive element therebetween; a spacer element, configured to form the lower reflective element or arranged between the upper and the lower reflective element; wherein the elements form a stack of layers which define a resonance structure between the upper and the lower reflective element for providing a resonance of light; wherein the spacer element comprises at least two different materials, a distribution of which is different between different pixels in an array of pixels such that a resonance wavelength is different for different pixels; and wherein for a plurality of pixels, geometrical structures smaller than the resonance wavelength are defined by the at least two different materials.

公开(公告)号：US20220252909A1

公开(公告)日：2022-08-11

申请号：US17628657

申请日：2020-07-09

Applicant: IMEC VZW ,  KATHOLIEKE UNIVERSITEIT LEUVEN

Inventor： Anabel DE PROFT ,  Xavier ROTTENBERG ,  Kristof LODEWIJKS

IPC: G02F1/01 ,  G03H1/02 ,  G03H1/22

Abstract: According to an aspect of the present inventive concept there is provided an optical device (1) for modulating incident light (L), comprising a resonance defining layer structure (110) comprising an optical state change material (112), and an electrode layer (120) comprising at least two spaced-apart electrode elements (121, 122, 123). The electrode elements are individually addressable and arranged to cause an optical state change of a portion of the optical state change material between a first state and a second state, wherein the portion forms a geometric structure (131, 132, 133, 134, 135, 136) defined by the arrangement of the at least two spaced-apart electrode elements. The optical state change material is configured to alter an optical response of the optical device upon the optical state change between the first state and the second state, thereby determining the modulation of the incident light.

公开(公告)号：US20210033895A1

公开(公告)日：2021-02-04

申请号：US16966456

申请日：2019-01-30

Applicant: IMEC VZW

Inventor： Xavier ROTTENBERG ,  Kristof LODEWIJKS

IPC: G02F1/03 ,  G03H1/22

Abstract: An optical device for forming a distribution of a three-dimensional light field comprises: an array of individually addressable unit cells; each unit cell in the array of unit cells comprising a stack including: at least one electrode; and a resonance defining layer, comprising at least a phase change material, PCM, layer, wherein the resonance defining layer is patterned to define a geometric structure dimensioned for defining a wavelength-dependent in-plane resonance of an electromagnetic wave; wherein the at least one electrode causes a phase change of the phase change material based on receiving a control signal to alter a wavelength-dependency of resonance in the resonance defining layer for controlling the optical property of the unit cell; wherein unit cells in the array of unit cells are separated such that the PCM layer of a unit cell is separated from the PCM layer in an adjacent unit cell.

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.