公开(公告)号：US20240399660A1

公开(公告)日：2024-12-05

申请号：US18326966

申请日：2023-05-31

Applicant: NISSAN NORTH AMERICA, INC. ,  NORTHWESTERN UNIVERSITY

Inventor： Nanzhu ZHAO ,  Evan JONES ,  Sandeep PATIL ,  Cheng SUN

IPC: B29C64/245 ,  B29C64/124 ,  B29C64/30 ,  B33Y30/00

Abstract: A three-dimensional printing system is provided that includes a tank, a textured substrate connected to the tank, and an auxiliary reservoir. The tank contains a liquid photopolymer resin. The textured substrate is configured to allow light to pass through into the liquid photopolymer resin. The auxiliary reservoir contains lubricant, and the textured substrate includes a plurality of internal channels connected to the auxiliary reservoir.

公开(公告)号：US20240399664A1

公开(公告)日：2024-12-05

申请号：US18326971

申请日：2023-05-31

Applicant: NISSAN NORTH AMERICA, INC. ,  NORTHWESTERN UNIVERSITY

Inventor： Nanzhu ZHAO ,  Evan JONES ,  Sandeep PATIL ,  Cheng SUN

IPC: B29C64/307 ,  B29C64/129 ,  B29C64/245

Abstract: A three-dimensional printing system is provided that includes a tank, a textured substrate connected to the tank, and a reservoir. The tank contains a liquid photopolymer resin. The textured substrate is configured to allow light to pass through into the liquid photopolymer resin. The reservoir contains lubricant and is formed around a perimeter of the tank. The reservoir is connected to the textured substrate and configured to supply the lubricant to the textured substrate.

公开(公告)号：US20230158744A1

公开(公告)日：2023-05-25

申请号：US17535546

申请日：2021-11-24

Applicant: NISSAN NORTH AMERICA, INC. ,  NORTHWESTERN UNIVERSITY

Inventor： Nanzhu ZHAO ,  Sandeep PATIL ,  Cheng SUN ,  Rihan HAI

IPC: B29C64/314 ,  B29C64/129 ,  B29C64/264 ,  B29C64/245 ,  B29C64/232 ,  B33Y30/00 ,  B33Y40/10

CPC classification number: B29C64/314 ,  B29C64/129 ,  B29C64/264 ,  B29C64/245 ,  B29C64/232 ,  B33Y30/00 ,  B33Y40/10

Abstract: A 3D printing system includes a tank containing a liquid photopolymer resin. The tank includes an optically transparent window through which light is configured to pass. A heat exchanger is connected to the tank and is configured to cool the liquid polymer resin. A transducer is connected to the tank. The transducer is configured to emit an acoustic wave toward the optically transparent window.

公开(公告)号：US20230158741A1

公开(公告)日：2023-05-25

申请号：US17535540

申请日：2021-11-24

Applicant: NISSAN NORTH AMERICA, INC. ,  NORTHWESTERN UNIVERSITY

Inventor： Nanzhu ZHAO ,  Sandeep PATIL ,  Cheng SUN ,  Rihan HAI

IPC: B29C64/264 ,  B29C64/245 ,  B29C64/129 ,  B29C64/232 ,  B33Y30/00

CPC classification number: B29C64/264 ,  B29C64/245 ,  B29C64/129 ,  B29C64/232 ,  B33Y30/00

Abstract: A 3D printing system includes a tank containing a liquid photopolymer resin. A textured surface is connected to the tank. The textured surface is configured such that light passes therethrough and into the liquid polymer resin. A transducer is connected to the tank. The transducer is configured to emit an acoustic wave toward the textured surface.

公开(公告)号：US20230158736A1

公开(公告)日：2023-05-25

申请号：US17993763

申请日：2022-11-23

Applicant: NISSAN NORTH AMERICA, INC. ,  NORTHWESTERN UNIVERSITY

Inventor： Nanzhu ZHAO ,  Evan JONES ,  Sandeep PATIL ,  Cheng SUN

IPC: B29C64/135 ,  B33Y30/00 ,  B29C64/255 ,  B29C64/245

CPC classification number: B29C64/135 ,  B33Y30/00 ,  B29C64/255 ,  B29C64/245 ,  B29K2683/00

Abstract: A 3D printing system includes a tank containing a liquid photopolymer resin. A textured surface is disposed in the tank. The textured surface is configured such that light passes through therethrough and into the liquid polymer resin. A layer of an inert material is disposed on the textured surface.

公开(公告)号：US20230067468A1

公开(公告)日：2023-03-02

申请号：US17463479

申请日：2021-08-31

Applicant: Nissan North America, Inc.

Inventor： Cheng SUN ,  Rihan HAI ,  Nanzhu ZHAO ,  Sandeep PATIL

IPC: B29C64/277 ,  B33Y30/00 ,  B33Y10/00 ,  B29C64/124 ,  B29C64/30 ,  B33Y40/20 ,  B29C64/393 ,  B33Y50/02

Abstract: A 3D printing system includes a vat containing a liquid photopolymer resin and a rigid base on which an object is configured to be printed. A control arm connected to the rigid base is configured to move the rigid base relative to the vat. A first light source is configured to emit light to the vat to form the object on the rigid base. A second light source is configured to emit light on the object externally of the liquid photopolymer resin in the vat to cure the object.

公开(公告)号：US20240361665A1

公开(公告)日：2024-10-31

申请号：US18646304

申请日：2024-04-25

Applicant: Northwestern University ,  The Board of Trustees of The Leland Stanford Junior University

Inventor： Hao F. ZHANG ,  Cheng SUN ,  Tingwei ZHANG ,  Roman V. KURANOV ,  David Andrew MILLER

IPC: G02F1/35 ,  G02F1/377

CPC classification number: G02F1/3534 ,  G02F1/377 ,  G02F2202/32

Abstract: The present disclosure provides a new visible light swept source that enables ultrafast visible light OCT to operate at a faster rate to reduce the motion artifacts and increase the field of view without sacrificing image quality. The new visible light swept source further provides for improved roll-off performance and mitigation of influence of RIN and wash-out effect for wide-field imaging. With a much-improved increase in imaging speed, increased signal-to-noise ratio (SNR), and increased imaging depth, visible light swept-source OCT (vis-ss-OCT) has the capability to perform more accurate functional and structural imaging.

公开(公告)号：US20210008246A1

公开(公告)日：2021-01-14

申请号：US16646848

申请日：2018-09-13

Applicant: NORTHWESTERN UNIVERSITY

Inventor： Guillermo A. AMEER ,  Henry Oliver Tenadooah WARE ,  Cheng SUN ,  Congwen DUAN

IPC: A61L27/16 ,  A61L27/12 ,  A61L27/04 ,  A61L27/10 ,  A61L27/58 ,  B33Y70/00 ,  B29C64/124 ,  B33Y10/00 ,  B29C35/02 ,  B33Y40/20 ,  B29C64/30

Abstract: Provided herein photo-reactive inks, thermal-curable materials and objects (e.g., medical implants, scaffolds, devices, etc.) made therefrom, and methods of preparation and use thereof.

公开(公告)号：US20240085670A1

公开(公告)日：2024-03-14

申请号：US18367349

申请日：2023-09-12

Applicant: Northwestern University

Inventor： Cheng SUN ,  Rihan HAI ,  Henry Oliver Tenadooah WARE ,  Evan Hunter JONES

IPC: G02B13/00 ,  G02B7/00 ,  G02B7/02

CPC classification number: G02B13/001 ,  G02B7/003 ,  G02B7/006 ,  G02B7/022 ,  G02B7/026 ,  B29D11/00

Abstract: Provided herein are methods of making imaging systems. In one aspect, the method may comprise providing a lens; providing an optomechanical assembly; providing an imaging sensor; and operably connecting the optomechanical assembly with said lens and said imaging sensor, forming said imaging system. In some aspects, providing an optomechanical assembly may comprise manufacturing a component of the optomechanical assembly using additive manufacturing. In some aspects, providing an optomechanical assembly may comprise manufacturing a component of the optomechanical assembly using micro-continuous liquid interface production (μCLIP) 3D printing.

公开(公告)号：US20210016496A1

公开(公告)日：2021-01-21

申请号：US16975458

申请日：2019-03-08

Applicant: NORTHWESTERN UNIVERSITY

Inventor： Xiangfan CHEN ,  Wenzhong LIU ,  Hao F. ZHANG ,  Cheng SUN

IPC: B29C64/129 ,  B33Y10/00

Abstract: In an aspect, a method for additive manufacture of a three-dimensional object based on a computational model comprises steps of: grayscale photohardening a precursor material to form a portion of the object; and applying a hardened meniscus coating at a feature of the object; wherein the three-dimensional object is formed via at least the combination of the steps of gray scale photohardening and applying the meniscus coating. In some embodiments, the grayscale photohardening step is a grayscale photopolymerization step. In some embodiments, the applying a hardened meniscus coating step is a meniscus equilibrium post-curing step.