公开(公告)号：US20210258516A1

公开(公告)日：2021-08-19

申请号：US16972982

申请日：2019-06-07

Applicant: LYNRED

Inventor： Alain DURAND ,  Nicolas BOUDOU

IPC: H04N5/33 ,  H04N17/00 ,  G06T7/80 ,  G01J5/06

Abstract: A method of calibrating an infrared (IR) camera including a pixel array housed in a housing, the pixel array having an image sensor and one or more parasitic heat sensing pixels arranged to receive infrared light from different portions of an interior surface of the housing, the method including: receiving, by a processing device, one or more readings from each of the parasitic heat sensing pixels and from each pixel of the pixel array; and generating, by the processing device based on the one or more readings, one or more conversion matrices for converting readings from the parasitic heat sensing pixels into pixel correction values for performing 2D signal correction of the image.

公开(公告)号：US20210270676A1

公开(公告)日：2021-09-02

申请号：US17325827

申请日：2021-05-20

Applicant: LYNRED

Inventor： Nicolas BOUDOU ,  Alexia GORECKI

IPC: G01J5/02 ,  G01J5/08 ,  H01L27/146 ,  G01J5/20 ,  H04N5/33

Abstract: An image sensor includes on a support a plurality of first pixels and a plurality of second pixels intended to detect an infrared radiation emitted by an element of a scene. Each of the pixels includes a bolometric membrane suspended above a reflector covering the support, wherein the reflector of each of the first pixels is covered with a first dielectric layer, and the reflector of each of the second pixels is covered with a second dielectric layer differing from the first dielectric layer by its optical properties.

公开(公告)号：US20210250469A1

公开(公告)日：2021-08-12

申请号：US16972967

申请日：2019-06-07

Applicant: LYNRED

Inventor： Alain DURAND ,  Nicolas BOUDOU

IPC: H04N5/217

Abstract: An infrared camera includes a housing containing a pixel array. The pixel array includes: image pixels forming an image sensor arranged to receive infrared light from an image scene; and a plurality of parasitic heat sensing pixels arranged to receive infrared light from different portions of an interior surface of the housing.

公开(公告)号：US20220236114A1

公开(公告)日：2022-07-28

申请号：US17614830

申请日：2020-06-05

Applicant: LYNRED

Inventor： Nicolas BOUDOU

IPC: G01J5/20

Abstract: The present disclosure relates to a microbolometer comprising an array of pixels, each pixel comprising one or more detection cells, each detection cell comprising an absorption layer (530), wherein: the pitch of the detection cells in at least one direction in the plane of pixel array is between 5 and 11 μm; a pixel fill factor FF of the absorption layer (530) of the one or more detection cells in each pixel is in a range 0.10 to 0.50; and a sheet resistance Rs of the absorption layer (530) of each detection cell is between 16 and 189 ohm/sq.

公开(公告)号：US20220228920A1

公开(公告)日：2022-07-21

申请号：US17615361

申请日：2020-06-05

Applicant: LYNRED

Inventor： Nicolas BOUDOU

IPC: G01J5/20

Abstract: The present disclosure relates to a microbolometer comprising an array of pixels, each pixel comprising one or more detection cells, each detection cell comprising an absorption layer (530) forming a quarter-wave cavity (533) having a height (h) of between 1.5 and 5 μm, wherein the pitch of the detection cells in at least one axis in a plane of the pixel array is in the range 2.4h to 3.6h.