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    Linear-immersed Sweeping Accumulation for 3D Printing
    2.
    发明申请
    Linear-immersed Sweeping Accumulation for 3D Printing 审中-公开
    线性浸没扫描积累3D打印

    公开(公告)号：US20160303805A1

    公开(公告)日：2016-10-20

    申请号：US15099404

    申请日：2016-04-14

    Applicant: University of Southern California

    Inventor： Yong Chen ,  Huachao Mao

    IPC: B29C67/00 ,  G02B27/09 ,  G02B26/10 ,  G06K15/12 ,  H04N1/024

    Abstract: The present disclosure describes systems and techniques relating to computer numerical control (CNC) additive manufacturing. According to an aspect, a tooltip for an additive manufacturing machine includes: an input end configured to receive light from an optical system; and an output end configured to deliver the light to a workpiece on a build platform in the additive manufacturing machine; wherein the output end of the tooltip is configured to be immersed in a liquid resin in a tank of the additive manufacturing machine, and the output end defines a linear opening through which the light is delivered to the workpiece on the build platform.

    Abstract translation: 本公开描述了与计算机数控（CNC）添加剂制造相关的系统和技术。 根据一个方面，一种用于添加剂制造机的工具提示器包括：被配置为从光学系统接收光的输入端; 以及输出端，被配置为将光传送到所述添加剂制造机器中的构建平台上的工件; 其中工具提示的输出端被配置为浸入添加剂制造机器的罐中的液体树脂中，并且输出端限定了光线在构建平台上被输送到工件的线性开口。

    3D PRINTING WITH VARIABLE VOXEL SIZES
    4.
    发明申请
    3D PRINTING WITH VARIABLE VOXEL SIZES 有权

    公开(公告)号：US20220118703A1

    公开(公告)日：2022-04-21

    申请号：US17566112

    申请日：2021-12-30

    Applicant: UNIVERSITY OF SOUTHERN CALIFORNIA

    Inventor： Yong Chen ,  Yuanrui Li ,  Huachao Mao ,  Wei Wu

    IPC: B29C64/268 ,  B29C64/393 ,  B29C64/277 ,  B29C64/245 ,  B29C67/04 ,  B33Y10/00 ,  B33Y30/00 ,  B23K26/067 ,  B29C64/286 ,  B29C64/129

    Abstract: Methods, systems, and apparatus for multi-scale stereolithography. The apparatus includes a light source for providing a laser beam having a first shape and a first size. The apparatus includes a dynamic aperture having multiple apertures that are of the same or different sizes or shapes. The dynamic aperture is configured to receive the laser beam and modify at least one of the shape or the size of the laser beam. The apparatus includes a platform for holding an object to be printed. The apparatus includes a processor connected to at least one of the light source, the dynamic aperture or the platform. The processor is configured to move the platform to direct the laser beam or direct the laser beam to cure resin onto the object to be printed using a first aperture of the multiple apertures to form the object.

    Mask video projection based stereolithography with continuous resin flow
    5.
    发明授权
    Mask video projection based stereolithography with continuous resin flow 有权

    公开(公告)号：US10308007B2

    公开(公告)日：2019-06-04

    申请号：US15187713

    申请日：2016-06-20

    Applicant: University of Southern California

    Inventor： Yong Chen ,  Huachao Mao ,  Xiangjia Li

    IPC: B29C64/124 ,  B33Y50/02 ,  B33Y30/00 ,  B29C64/135 ,  B29C64/20 ,  B29C64/386 ,  B29C64/277 ,  B29C64/129 ,  B29C64/255 ,  B29C64/286 ,  B29C64/241

    Abstract: Methods, systems, and apparatus including medium-encoded computer program products for performing additive manufacturing (AM) using continuous resin flow based mask video projection stereolithography (MVP-SL) According to an aspect, a system for additive manufacturing of an object in three dimensions consisting of an X dimension, a Y dimension, and a Z dimension, the system comprising: a tank configured to contain a liquid resin; a first translation stage coupled with the tank, the first translation stage being configured to move the tank in the X dimension, the Y dimension, or both; a second translation stage coupled with a build platform, the second translation stage being configured to move the build platform in the Z dimension; and a computer control system to cause the second translation stage to elevate the build platform in the Z dimension simultaneously with causing the first translation stage to perform the sliding motion.

    Mask Video Projection Based Stereolithography with Continuous Resin Flow
    6.
    发明申请
    Mask Video Projection Based Stereolithography with Continuous Resin Flow 审中-公开
    基于视觉投影的立体光刻与连续树脂流动

    公开(公告)号：US20160368210A1

    公开(公告)日：2016-12-22

    申请号：US15187713

    申请日：2016-06-20

    Applicant: University of Southern California

    Inventor： Yong Chen ,  Huachao Mao ,  Xiangjia Li

    IPC: B29C67/00 ,  B33Y50/02 ,  B33Y30/00

    CPC classification number: B33Y50/02 ,  B29C64/135 ,  B29C64/20 ,  B29C64/386 ,  B33Y30/00

    Abstract: Methods, systems, and apparatus including medium-encoded computer program products for performing additive manufacturing (AM) using continuous resin flow based mask video projection stereolithography (MVP-SL) According to an aspect, a system for additive manufacturing of an object in three dimensions consisting of an X dimension, a Y dimension, and a Z dimension, the system comprising: a tank configured to contain a liquid resin; a first translation stage coupled with the tank, the first translation stage being configured to move the tank in the X dimension, the Y dimension, or both; a second translation stage coupled with a build platform, the second translation stage being configured to move the build platform in the Z dimension; and a computer control system to cause the second translation stage to elevate the build platform in the Z dimension simultaneously with causing the first translation stage to perform the sliding motion.

    Abstract translation: 包括用于使用基于连续树脂流动的掩模视频投影立体光刻（MVP-SL）进行添加剂制造（AM）的中等编码计算机程序产品的方法，系统和装置根据一个方面，一种用于三维的对象的附加制造系统 由X尺寸，Y尺寸和Z尺寸组成，所述系统包括：配置成容纳液体树脂的罐; 与所述罐结合的第一平移台，所述第一平移台被构造成在所述X尺寸，Y尺寸或两者中移动所述罐; 与构建平台耦合的第二平移台，所述第二平移台被构造成在所述Z维度中移动所述构建平台; 以及计算机控制系统，用于使所述第二平移台在所述Z维度中同时升高所述构建平台，同时使所述第一平移阶段执行所述滑动运动。

    3D printing with variable voxel sizes
    8.
    发明授权
    3D printing with variable voxel sizes 有权

    公开(公告)号：US11230057B2

    公开(公告)日：2022-01-25

    申请号：US15993197

    申请日：2018-05-30

    Applicant: University of Southern California

    Inventor： Yong Chen ,  Yuanrui Li ,  Huachao Mao ,  Wei Wu

    IPC: B29C64/268 ,  B29C64/393 ,  B29C64/277 ,  B29C64/245 ,  B29C67/04 ,  B33Y10/00 ,  B33Y30/00 ,  B23K26/067 ,  B29C64/286 ,  B29C64/129 ,  B33Y50/02

    Abstract: Methods, systems, and apparatus for multi-scale stereolithography. The apparatus includes a light source for providing a laser beam having a first shape and a first size. The apparatus includes a dynamic aperture having multiple apertures that are of the same or different sizes or shapes. The dynamic aperture is configured to receive the laser beam and modify at least one of the shape or the size of the laser beam. The apparatus includes a platform for holding an object to be printed. The apparatus includes a processor connected to at least one of the light source, the dynamic aperture or the platform. The processor is configured to move the platform to direct the laser beam or direct the laser beam to cure resin onto the object to be printed using a first aperture of the multiple apertures to form the object.

    Linear-immersed sweeping accumulation for 3D printing
    9.
    发明授权
    Linear-immersed sweeping accumulation for 3D printing 有权

    公开(公告)号：US10814546B2

    公开(公告)日：2020-10-27

    申请号：US15099404

    申请日：2016-04-14

    Applicant: University of Southern California

    Inventor： Yong Chen ,  Huachao Mao

    IPC: B29C64/268 ,  B29C64/135 ,  G06K15/12 ,  H04N1/024 ,  G02B26/10 ,  B29C64/241 ,  B33Y30/00 ,  B33Y40/00

    Abstract: The present disclosure describes systems and techniques relating to computer numerical control (CNC) additive manufacturing. According to an aspect, a tooltip for an additive manufacturing machine includes: an input end configured to receive light from an optical system; and an output end configured to deliver the light to a workpiece on a build platform in the additive manufacturing machine; wherein the output end of the tooltip is configured to be immersed in a liquid resin in a tank of the additive manufacturing machine, and the output end defines a linear opening through which the light is delivered to the workpiece on the build platform.

    SLIDING WINDOW SCREEN FOR REDUCING RESIN REFILLING TIME IN STEREOLITHOGRAPHY
    10.
    发明申请
    SLIDING WINDOW SCREEN FOR REDUCING RESIN REFILLING TIME IN STEREOLITHOGRAPHY 审中-公开

    公开(公告)号：US20190291342A1

    公开(公告)日：2019-09-26

    申请号：US16317786

    申请日：2017-07-14

    Applicant: UNIVERSITY OF SOUTHERN CALIFORNIA

    Inventor： Yong Chen ,  Huachao Mao

    IPC: B29C64/129 ,  B29C64/393

    Abstract: A sliding window is used in a projection-based stereolithographic process to more quickly deliver uncured resin after each curing pass. The sliding window may be configured in different patterns, and includes features for delivering resin and exposing resin to curing radiation. The window screen divides the stereolithographic building area divided into two portions, a light exposure portion for resin curing and a liquid resin refilling portion. The light exposure portion is used to selectively solidify liquid resin, while the liquid resin refilling portion is used to quickly refill liquid resin in order to build additional layers. During the layer fabrication process, a mask image is projected to the tank; however, the projection light only passes through the light exposure portion of the window screen.

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