公开(公告)号：US12125861B2

公开(公告)日：2024-10-22

申请号：US17177190

申请日：2021-02-16

Applicant: IMEC VZW

Inventor： Nick Spooren ,  Bert Geelen

IPC: H01L27/146

CPC classification number: H01L27/14621 ,  H01L27/14623 ,  H01L27/14627 ,  H01L27/14643

Abstract: The present invention relates to a spectral sensor. The spectral sensor comprising: a light detecting element; a microlens; and an interference filter arranged between the light detecting element and the microlens, and configured to transmit light in one or more spectral bands; wherein the microlens has an effective focal length (F) exceeding a distance (D) between the microlens and the light detecting element. The microlens may be configured such that light refracted by the microlens, to be transmitted through the interference filter, converges towards a position (P) behind the light detecting element. The present invention further relates to an image sensor comprising a plurality of spectral sensors.

公开(公告)号：US11244977B2

公开(公告)日：2022-02-08

申请号：US15846584

申请日：2017-12-19

Applicant: IMEC VZW

Inventor： Nicolaas Tack ,  Bert Geelen ,  Bart Vereecke

IPC: H01L27/146 ,  G01J3/02 ,  G01J3/28 ,  G01J3/26 ,  G01J1/42

Abstract: An imaging sensor comprises: an array of light-detecting elements, wherein each light-detecting element in the array of light-detecting elements is arranged in the imaging sensor so as to detect a respective wavelength interval, wherein the respective wavelength interval differs for different light-detecting elements; a pattern arranged on the array of light-detecting elements, wherein the pattern defines a plurality of transparent areas, each transparent area being associated with a corresponding light-detecting element in the array of light-detecting elements, wherein a size of a transparent area among the plurality of transparent areas is dependent of the corresponding light-detecting element with which the transparent area is associated.

公开(公告)号：US20190067344A1

公开(公告)日：2019-02-28

申请号：US16101080

申请日：2018-08-10

Applicant: IMEC VZW

Inventor： Bert Geelen

IPC: H01L27/146 ,  H01L31/0216 ,  G01J3/28

Abstract: Example embodiments relate to image sensors and imaging apparatuses. One embodiment includes an image sensor for acquiring an image of an object. The image sensor includes an array of photo-sensitive areas formed on a substrate. Each photo-sensitive area is a continuous area within the substrate and is configured to detect incident light. The image sensor also includes an array of interference filters. Each inference filter is configured to selectively transmit a wavelength band. The array of interference filters is monolithically integrated on the array of photo-sensitive areas. A plurality of the interference filers is associated with a single photo-sensitive area of the array of photo-sensitive areas. Each interference filter in the plurality of interference filters is configured to selectively transmit a unique wavelength band to the photo-sensitive area and each interference filter in the plurality of interference filters is associated with a respective portion of the single photo-sensitive area.