公开(公告)号：US11945169B2

公开(公告)日：2024-04-02

申请号：US17332511

申请日：2021-05-27

Applicant: XEROX CORPORATION

Inventor： Vijay Kumar Baikampady Gopalkrishna ,  Raja Bala ,  Palghat Ramesh ,  David Allen Mantell ,  Peter Michael Gulvin ,  Mark A. Cellura

IPC: B29C64/393 ,  B29C64/112 ,  B29C64/209 ,  B33Y30/00 ,  B33Y50/02 ,  G06K9/32 ,  G06T7/13 ,  G06T7/70 ,  G06V10/20

CPC classification number: B29C64/393 ,  B29C64/112 ,  B29C64/209 ,  B33Y30/00 ,  B33Y50/02 ,  G06T7/13 ,  G06T7/70 ,  G06V10/255

Abstract: A 3D printer includes a nozzle configured to jet a drop of liquid metal therethrough. The 3D printer also includes a light source configured to illuminate the drop with a pulse of light. A duration of the pulse of light is from about 0.0001 seconds to about 0.1 seconds. The 3D printer also includes a camera configured to capture an image, video, or both of the drop. The 3D printer also includes a computing system configured to detect the drop in the image, the video, or both. The computing system is also configured to characterize the drop after the drop is detected. Characterizing the drop includes determining a size of the drop, a location of the drop, or both in the image, the video, or both.

公开(公告)号：US11808680B2

公开(公告)日：2023-11-07

申请号：US17332445

申请日：2021-05-27

Applicant: XEROX CORPORATION

Inventor： Vijay Kumar Baikampady Gopalkrishna ,  Raja Bala ,  Palghat Ramesh ,  David Allen Mantell ,  Peter Michael Gulvin ,  Mark A. Cellura

IPC: G01N15/02 ,  B22F12/90 ,  B22F10/31 ,  B22F10/85 ,  B33Y40/00 ,  B33Y50/02 ,  B33Y10/00

CPC classification number: G01N15/0227 ,  B22F10/31 ,  B22F10/85 ,  B22F12/90 ,  B33Y10/00 ,  B33Y40/00 ,  B33Y50/02

Abstract: A method includes illuminating a drop with a pulse of light from a light source. A duration of the pulse of light is from about 0.0001 seconds to about 0.1 seconds. The method also includes capturing an image, video, or both of the drop. The method also includes detecting the drop in the image, the video, or both. The method also includes characterizing the drop after the drop is detected. Characterizing the drop includes determining a size of the drop, a location of the drop, or both in the image, the video, or both.

公开(公告)号：US11760000B2

公开(公告)日：2023-09-19

申请号：US17314933

申请日：2021-05-07

Applicant: XEROX CORPORATION

Inventor： Raja Bala ,  Vijay Kumar Baikampady Gopalkrishna ,  Palghat Ramesh ,  David Allen Mantell ,  Peter Michael Gulvin ,  Mark A. Cellura

IPC: B33Y50/02 ,  B29C64/112 ,  G06T7/00 ,  B29C64/209 ,  G06T7/64 ,  B29C64/393 ,  B33Y10/00

CPC classification number: B29C64/112 ,  B29C64/209 ,  B29C64/393 ,  G06T7/0004 ,  G06T7/64 ,  B33Y10/00 ,  B33Y50/02 ,  G06T2207/30144

Abstract: A method includes capturing a video of a plurality of drops being jetted through a nozzle of a printer. The method also includes measuring a signal proximate to the nozzle based at least partially upon the video. The method also includes determining one or more metrics that characterize a behavior of the drops based at least partially upon the signal.

公开(公告)号：US20220381666A1

公开(公告)日：2022-12-01

申请号：US17332445

申请日：2021-05-27

Applicant: PALO ALTO RESEARCH CENTER INCORPORATED ,  XEROX CORPORATION

Inventor： Vijay Kumar Baikampady Gopalkrishna ,  Raja Bala ,  Palghat Ramesh ,  David Allen Mantell ,  Peter Michael Gulvin ,  Mark A. Cellura

IPC: G01N15/02 ,  B22F12/90 ,  B22F10/31 ,  B22F10/85

Abstract: A method includes illuminating a drop with a pulse of light from a light source. A duration of the pulse of light is from about 0.0001 seconds to about 0.1 seconds. The method also includes capturing an image, video, or both of the drop. The method also includes detecting the drop in the image, the video, or both. The method also includes characterizing the drop after the drop is detected. Characterizing the drop includes determining a size of the drop, a location of the drop, or both in the image, the video, or both.

公开(公告)号：US20220379564A1

公开(公告)日：2022-12-01

申请号：US17332511

申请日：2021-05-27

Applicant: PALO ALTO RESEARCH CENTER INCORPORATED ,  XEROX CORPORATION

Inventor： Vijay Kumar Baikampady Gopalkrishna ,  Raja Bala ,  Palghat Ramesh ,  David Allen Mantell ,  Peter Michael Gulvin ,  Mark A. Cellura

IPC: B29C64/393 ,  B29C64/209 ,  B29C64/112 ,  B33Y30/00 ,  B33Y50/02 ,  G06K9/32 ,  G06T7/70 ,  G06T7/13

Abstract: A 3D printer includes a nozzle configured to jet a drop of liquid metal therethrough. The 3D printer also includes a light source configured to illuminate the drop with a pulse of light. A duration of the pulse of light is from about 0.0001 seconds to about 0.1 seconds. The 3D printer also includes a camera configured to capture an image, video, or both of the drop. The 3D printer also includes a computing system configured to detect the drop in the image, the video, or both. The computing system is also configured to characterize the drop after the drop is detected. Characterizing the drop includes determining a size of the drop, a location of the drop, or both in the image, the video, or both.

公开(公告)号：US20220355535A1

公开(公告)日：2022-11-10

申请号：US17314933

申请日：2021-05-07

Applicant: PALO ALTO RESEARCH CENTER INCORPORATED ,  XEROX CORPORATION

Inventor： Raja Bala ,  Vijay Kumar Baikampady Gopalkrishna ,  Palghat Ramesh ,  David Allen Mantell ,  Peter Michael Gulvin ,  Mark A. Cellura

IPC: B29C64/112 ,  B29C64/209 ,  B29C64/393 ,  G06T7/00

Abstract: A method includes capturing a video of a plurality of drops being jetted through a nozzle of a printer. The method also includes measuring a signal proximate to the nozzle based at least partially upon the video. The method also includes determining one or more metrics that characterize a behavior of the drops based at least partially upon the signal.

公开(公告)号：US11724441B2

公开(公告)日：2023-08-15

申请号：US17314989

申请日：2021-05-07

Applicant: PALO ALTO RESEARCH CENTER INCORPORATED ,  XEROX CORPORATION

Inventor： Raja Bala ,  Vijay Kumar Baikampady Gopalkrishna ,  Palghat Ramesh ,  David Allen Mantell ,  Peter Michael Gulvin ,  Mark A. Cellura

IPC: B29C64/112 ,  B29C64/209 ,  B29C64/295 ,  G06T7/00 ,  B29C64/393 ,  B22F12/53 ,  B33Y30/00 ,  B33Y50/02

CPC classification number: B29C64/112 ,  B22F12/53 ,  B29C64/209 ,  B29C64/295 ,  B29C64/393 ,  G06T7/0004 ,  B33Y30/00 ,  B33Y50/02 ,  G06T2207/30144

Abstract: A 3D printer includes a nozzle and a camera configured to capture an image, a video, or both of a plurality of drops of liquid metal being jetted through the nozzle. The 3D printer also includes a computing system configured to measure a signal proximate to the nozzle based at least partially upon the image, the video, or both. The computing system is also configured to determine one or more metrics that characterize a behavior of the drops based at least partially upon the signal.

公开(公告)号：US20220355536A1

公开(公告)日：2022-11-10

申请号：US17314989

申请日：2021-05-07

Applicant: PALO ALTO RESEARCH CENTER INCORPORATED ,  XEROX CORPORATION

Inventor： Raja Bala ,  Vijay Kumar Baikampady Gopalkrishna ,  Palghat Ramesh ,  David Allen Mantell ,  Peter Michael Gulvin ,  Mark A. Cellura

IPC: B29C64/112 ,  B29C64/209 ,  B29C64/295 ,  B29C64/393 ,  G06T7/00

Abstract: A 3D printer includes a nozzle and a camera configured to capture an image, a video, or both of a plurality of drops of liquid metal being jetted through the nozzle. The 3D printer also includes a computing system configured to measure a signal proximate to the nozzle based at least partially upon the image, the video, or both. The computing system is also configured to determine one or more metrics that characterize a behavior of the drops based at least partially upon the signal.