公开(公告)号：US11095835B2

公开(公告)日：2021-08-17

申请号：US16722877

申请日：2019-12-20

Applicant: IMEC VZW

Inventor： Nicolaas Tack ,  Andy Lambrechts

IPC: H04N5/33 ,  G02B5/28 ,  H04N5/357 ,  H04N5/374

Abstract: An example method and hyperspectral imaging (HSI) system for imaging a scene are provided. The method is for imaging the scene with the HSI system including a sensor with a plurality of sensor pixels and a plurality of spectral filters, each of the spectral filters being associated with one of the sensor pixels. The method comprises obtaining a higher-resolution spatial image by illuminating the scene with a first set of wavelengths, wherein each spectral filter passes the first set of wavelengths to the sensor pixel it is associated with. The method further comprises obtaining a lower-resolution hyperspectral image by illuminating the scene with a second set of wavelengths, wherein each spectral filter passes only a subset of the second set of wavelengths to the sensor pixel it is associated with.

公开(公告)号：US10742916B2

公开(公告)日：2020-08-11

申请号：US16094165

申请日：2017-04-06

Applicant: IMEC VZW

Inventor： Jonathan Borremans ,  Nicolaas Tack ,  Maarten Rosmeulen ,  Paul Goetschalckx ,  Piet De Moor

IPC: H04N5/372 ,  H04N5/347 ,  H04N5/378

Abstract: An imaging sensor is disclosed, comprising: a set of at least two charge-coupled device, CCD, sub-arrays, wherein each sub-array comprises pixels arranged in columns and rows, and each pixel being arranged to accumulate an electric charge proportional to an intensity of light incident on the pixel; a time delay and integration, TDI, clocking circuitry for controlling and timing transfer of accumulated electric charges between rows of pixels in a column direction in order to integrate the accumulated electric charges in each column of pixels; wherein each CCD sub-array further comprises a readout row for converting the integrated electric charge of each column of pixels into voltage or current, wherein the readout row comprises transistors enabling readout of the signal by the readout block; and a readout block which is arranged to receive input from selected readout rows and convert the input into digital domain or convert the input to a combined representation of pixel values based on the set of CCD sub-arrays.

公开(公告)号：US11408769B2

公开(公告)日：2022-08-09

申请号：US16592228

申请日：2019-10-03

Applicant: IMEC VZW

Inventor： Nicolaas Tack ,  Nick Spooren ,  Bart Vereecke

IPC: G01J3/28 ,  G01J3/36

Abstract: A spectral sensor comprises (i) a first type of interference filter comprising reflective multilayers of a first type and an intermediate layer configured to give a constructive interference for a wavelength in a first range, and (ii) a second type of interference filter comprising reflective multilayers of a second type and an intermediate layer configured to give a constructive interference for a wavelength in a second range. The sensor further comprises first and second filter stacks configured to selectively transmit light in the first and second wavelength ranges to first and second photo-sensitive areas, respectively. The first filter stack includes the first type of interference filter and a second type of dielectric mirror that is reflective in the second wavelength range. The second filter stack includes the second type of interference filter and a first type of dielectric mirror that is reflective in the first wavelength range.

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：US09929206B2

公开(公告)日：2018-03-27

申请号：US15191412

申请日：2016-06-23

Applicant: IMEC VZW

Inventor： Bart Vereecke ,  Deniz Sabuncuoglu Tezcan ,  Philippe Soussan ,  Nicolaas Tack

IPC: H01L27/32 ,  H01L27/146 ,  G01J3/51 ,  G01J3/50 ,  G01J3/02 ,  G01J3/12

CPC classification number: H01L27/14685 ,  G01J3/0259 ,  G01J3/50 ,  G01J3/513 ,  G01J2003/1226 ,  H01L27/1461 ,  H01L27/14623 ,  H01L27/14625 ,  H01L27/14629 ,  H01L27/14643

Abstract: An integrated circuit for an imaging device including an array of photo-sensitive areas is disclosed. In one aspect the integrated circuit includes a first multi-layer structure and a second multi-layer structure arranged over a first and a second photo-sensitive area, respectively. The second multi-layer structures each have a bottom and a top reflective structure and a spacer layer arranged therebetween. The spacer layer has a thickness such that the multi-layer structure selectively transmits a narrow range of wavelengths of electro-magnetic radiation. The bottom and top reflective structures include a stack of alternating layers of a first and a second material. Thickness and/or material of the alternating layers of the first multi-layer structure differ from thickness and/or material of the alternating layers of the second multi-layer structure.

公开(公告)号：US10924696B2

公开(公告)日：2021-02-16

申请号：US16002253

申请日：2018-06-07

Applicant: IMEC VZW

Inventor： Julien Pichette ,  Nicolaas Tack

IPC: H04N5/369 ,  H04N5/374 ,  H04N5/235 ,  H04N9/04 ,  H04N5/349 ,  G02B5/20

Abstract: An image sensor for acquiring an image of an object comprises: an array of photo-sensitive areas (112); and a mosaic filter (114) associated with the array dividing the array into sub-groups (118) of photo-sensitive areas (112) extending across at least two rows and two columns, wherein the mosaic filter (114) transmits unique light properties to the photo-sensitive areas (112) within the sub-group (118); wherein the mosaic filter (114) comprises a sequence of unique filter portions associated with a set of photo-sensitive areas (112) along a row, wherein the set extends through more than one sub-group (118); wherein sequences comprising the unique filter portions are associated with each row and wherein the sequences associated with adjacent rows comprise different orders of the unique filter portions, such that different light properties are transmitted to photo-sensitive areas (112) in the same column of adjacent rows.