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1. 发明授权

US11639031B2 Photocurable resins for volumetric additive manufacturing 有权
公开(公告)号：US11639031B2
公开(公告)日：2023-05-02
申请号：US15930822
申请日：2020-05-13
申请人： Lawrence Livermore National Security, LLC , The Regents of the University of California
发明人： Maxim Shusteff , James Oakdale , Robert Matthew Panas , Christopher M. Spadaccini , Hayden K. Taylor , Brett Kelly , Indrasen Bhattacharya , Hossein Heidari
IPC分类号： B29C64/393 , C08F2/50 , B29C64/153 , B29C64/232 , B33Y50/02 , B33Y30/00 , C08F20/18 , B33Y10/00 , B29K33/00 , B33Y70/10 , B33Y40/20 , B29C64/268 , B29C64/282 , B29C64/264 , B29C64/124 , B29C64/277 , B29C64/241 , B29C64/386 , B29C64/106
摘要： Methods and materials for volumetric additive manufacturing, including computed axial lithography (“CAL”), using photosensitive resins comprising a photocurable resin prepolymer; a photoinitiator; and (optionally) a curing inhibitor. In various embodiments, such photosensitive polymers comprise (a) one or more monomer (or prepolymer) molecules, which form the backbone of the polymer network of the polymeric material and define its architecture; and (b) a photoinitiator that captures illumination energy and initiates polymerization.

2. 发明授权

US11370173B2 System and method for computed axial lithography (CAL) for 3D additive manufacturing 有权
公开(公告)号：US11370173B2
公开(公告)日：2022-06-28
申请号：US16691053
申请日：2019-11-21
申请人： Lawrence Livermore National Security, LLC
发明人： Brett Kelly , Robert Panas , Maxim Shusteff , Christopher Spadaccini , Hayden Taylor , Indrasen Bhattacharya
IPC分类号： B29C64/20 , B29C64/393 , B29C64/129 , B29C64/277 , B33Y50/02 , B29C64/245 , B29C64/241 , B29C64/264 , B29C64/232 , B33Y10/00 , B33Y30/00
摘要： In one aspect the present disclosure relates to a system for forming a three dimensional (3D) object from a volume of photo-responsive material contained within a material container. A plurality of optical projection subsystems are adapted to be arranged circumferentially around a material container containing the volume of photo-responsive material, and are controlled by a controller. The optical projection subsystems direct optical projections at a plurality of angles θ through the volume of photo-responsive material. The optical projections are further directed about a z axis extending through the volume of photo-responsive material. The plurality of optical subsystems are further controlled by the controller to provide each of the optical projections with a calculated three-dimensional intensity distribution acting over a fixed temporal exposure period, which is sufficient to at least one of cure or remove selected portions of the volume of photo-responsive material, and leave other portions unmodified, to form a desired 3D part.

3. 发明申请

US20220011742A1 COMPUTED AXIAL LITHOGRAPHY OPTIMIZATION SYSTEM 有权
公开(公告)号：US20220011742A1
公开(公告)日：2022-01-13
申请号：US16927469
申请日：2020-07-13
申请人： Lawrence Livermore National Security, LLC
发明人： Maxim Shusteff , Kyle Champley , Erika Jo Fong , Hayden Taylor , Chi Chung Li , Trevor Rongey, JR. , Sui Man Luk , Heting Fu , Samira Feili , Joseph Toombs , Hossein Heidari
IPC分类号： G05B19/4099 , G06T7/00
摘要： A system for determining a light intensity field for use in manufacturing a 3D object from a volume of material. The system receives a 3D specification of a 3D geometry for the 3D object that specifies voxels within the volume that contain material that is to be part of the 3D object. The system employs a cost function for effectiveness of a light intensity field in manufacturing the 3D object. The cost function may be an adjoint of an Attenuated Radon Transform that models an energy dose that each voxel would receive during manufacture of the 3D object using the light intensity field. The system applies an optimization technique that employs the cost function to generate a measure of the effectiveness of possible light intensity fields and outputs an indication of a light intensity field that will be effective in manufacturing the 3D object.

4. 发明申请

US20180015672A1 MULTI-BEAM RESIN CURING SYSTEM AND METHOD FOR WHOLE-VOLUME ADDITIVE MANUFACTURING 审中-公开
公开(公告)号：US20180015672A1
公开(公告)日：2018-01-18
申请号：US15651861
申请日：2017-07-17
申请人： Lawrence Livermore National Security, LLC
发明人： Maxim Shusteff , Christopher M. Spadaccini , Nicholas Fang , Robert Matthew Panas , Johannes Henriksson , Brett Kelly , Allison E. Browar
IPC分类号： G03H1/22
CPC分类号： B29C64/282 , B29C64/124 , B29C64/268 , B33Y10/00 , B33Y30/00 , G03H1/0005 , G03H1/2205 , G03H1/2294 , G03H2001/0094 , G03H2001/0491 , G03H2001/2207 , G03H2001/221 , G03H2210/30 , G03H2210/33 , G03H2225/22 , G03H2225/32 , G03H2225/52
摘要： A multi-beam volumetric resin curing system and method for whole-volume additive manufacturing of an object includes a bath containing a photosensitive resin, a light source for producing a light beam, and a spatial light modulator which produces a phase- or intensity-modulated light beam by impressing a phase profile or intensity profile of an image onto a light beam received from the light source. The system and method also include projection optics which then produces multiple sub-image beams from the modulated light beam which are projected to intersect each other in the photosensitive resin to cure select volumetric regions of the resin in a whole-volume three-dimensional pattern representing the object.

5. 发明授权

US08991614B2 Microfluidic ultrasonic particle separators with engineered node locations and geometries 有权
标题翻译：具有工程节点位置和几何形状的微流体超声波颗粒分离器
公开(公告)号：US08991614B2
公开(公告)日：2015-03-31
申请号：US14246981
申请日：2014-04-07
申请人： Lawrence Livermore National Security, LLC
发明人： Klint A. Rose , Karl A. Fisher , Douglas A. Wajda , Raymond P. Mariella, Jr. , Christopher Bailey , Dietrich Dehlinger , Maxim Shusteff , Byoungsok Jung , Kevin D. Ness
IPC分类号： B03B5/00 , B01D21/28 , B01L3/00 , G01N33/49 , G01N33/487
CPC分类号： B01L3/50273 , B01D21/28 , B01D21/283 , B01D2221/10 , B01L3/502761 , B01L2200/0631 , B01L2200/0636 , B01L2200/0652 , B01L2300/0816 , B01L2300/0864 , B01L2400/0439 , B01L2400/0487 , G01N1/4077 , G01N33/48728 , G01N33/491 , G01N2001/4094
摘要： An ultrasonic microfluidic system includes a separation channel for conveying a sample fluid containing small particles and large particles, flowing substantially parallel, adjacent to a recovery fluid, with which it is in contact. An acoustic transducer produces an ultrasound standing wave, that generates a pressure field having at least one node of minimum, pressure amplitude. An acoustic extension structure is located proximate to said separation channel for positioning said acoustic node off center in said acoustic area and concentrating the large particles in said recovery fluid stream.
摘要翻译：超声波微流体系统包括用于输送包含小颗粒和大颗粒的样品流体的分离通道，所述样品流体基本上平行于与其接触的回收流体相邻流动。声换能器产生超声波驻波，其产生具有至少一个最小压力振幅节点的压力场。声学延伸结构位于所述分离通道附近，用于将所述声音节点偏离所述声学区域的中心，并将大颗粒集中在所述回收流体流中。

6. 发明授权

US08900434B2 Three dimensional microelectrode system for dielectrophoresis 有权
标题翻译：用于介电电泳的三维微电极系统
公开(公告)号：US08900434B2
公开(公告)日：2014-12-02
申请号：US13945768
申请日：2013-07-18
申请人： Lawrence Livermore National Security, LLC
发明人： Dietrich A. Dehlinger , Klint A. Rose , Maxim Shusteff , Christopher G. Bailey , Raymond P. Mariella, Jr.
IPC分类号： G01N27/447 , G01N27/26 , B03C5/02 , B01D57/02 , B03C5/00
CPC分类号： B03C5/005 , B01L2400/0424 , B03C5/026 , G01N27/447
摘要： A dielectrophoresis method for separating particles from a sample, including a dielectrophoresis channel, the dielectrophoresis channel having a central axis, a bottom, a top, a first side, and a second side; a first mesa projecting into the dielectrophoresis channel from the bottom and extending from the first side across the dielectrophoresis channel to the second side, the first mesa extending at an angle to the central axis of the dielectrophoresis channel; a second mesa projecting into the dielectrophoresis channel from the bottom and extending from the first side across the dielectrophoresis channel to the second side, the second mesa parallel to said first mesa; a space between at least one of the first electrode and the second side or the second electrode and the second side; and a gap between the first electrode and the second electrode, and pumping a recovery fluid through said gap between said first electrode and into said space between at least one of said first mesa and said second side or said second mesa and said second side.
摘要翻译：一种用于从样品中分离颗粒的介电电泳方法，包括介电电泳通道，具有中心轴的介电电泳通道，底部，顶部，第一侧和第二侧; 第一台面从底部突出到介电电泳通道中并且从第一侧穿过介电电泳通道延伸到第二侧，第一台面以与介电电泳通道的中心轴线成一定角度延伸; 从底部突出到介电电泳通道的第二台面，并且从第一侧穿过介电电泳通道延伸到第二侧，第二台面平行于所述第一台面; 第一电极和第二电极和第二电极和第二侧中的至少一个之间的空间; 以及第一电极和第二电极之间的间隙，并且将回收流体泵送通过所述第一电极之间的所述间隙并且在所述第一台面和所述第二侧面或所述第二台面和所述第二侧中的至少一个之间进入所述空间。

7. 发明申请

US20210146619A1 MULTI-BEAM RESIN CURING SYSTEM AND METHOD FOR WHOLE-VOLUME ADDITIVE MANUFACTURING 有权
公开(公告)号：US20210146619A1
公开(公告)日：2021-05-20
申请号：US17133244
申请日：2020-12-23
申请人： Lawrence Livermore National Security, LLC
发明人： Maxim Shusteff , Christopher M. Spadaccini , Nicholas Fang , Robert Matthew Panas , Johannes Henriksson , Brett Kelly , Allison E. Browar
IPC分类号： B29C64/282 , G03H1/22 , B29C64/124 , B29C64/268 , B33Y10/00 , B33Y30/00 , G03H1/00 , B29C64/286 , B29C64/264
摘要： A multi-beam volumetric resin curing system and method for whole-volume additive manufacturing of an object includes a bath containing a photosensitive resin, a light source for producing a light beam, and a spatial light modulator which produces a phase- or intensity-modulated light beam by impressing a phase profile or intensity profile of an image onto a light beam received from the light source. The system and method also include projection optics which then produces multiple sub-image beams from the modulated light beam which are projected to intersect each other in the photosensitive resin to cure select volumetric regions of the resin in a whole-volume three-dimensional pattern representing the object.

8. 发明申请

US20150196911A1 MICROFLUIDIC ULTRASONIC PARTICLE SEPARATORS WITH ENGINEERED NODE LOCATIONS AND GEOMETRIES 有权
标题翻译：具有工程节点位置和几何的微流体超声颗粒分离器
公开(公告)号：US20150196911A1
公开(公告)日：2015-07-16
申请号：US14659825
申请日：2015-03-17
申请人： Lawrence Livermore National Security, LLC
发明人： Klint A. Rose , Karl A. Fisher , Douglas A. Wajda , Raymond P. Mariella, JR. , Christopher Bailey , Dietrich Dehlinger , Maxim Shusteff , Byoungsok Jung , Kevin D. Ness
IPC分类号： B01L3/00 , G01N1/40
CPC分类号： B01L3/50273 , B01D21/28 , B01D21/283 , B01D2221/10 , B01L3/502761 , B01L2200/0631 , B01L2200/0636 , B01L2200/0652 , B01L2300/0816 , B01L2300/0864 , B01L2400/0439 , B01L2400/0487 , G01N1/4077 , G01N33/48728 , G01N33/491 , G01N2001/4094
摘要： An ultrasonic microfluidic system includes a separation channel for conveying a sample fluid containing small particles and large particles, flowing substantially parallel, adjacent to a recovery fluid, with which it is in contact. An acoustic transducer produces an ultrasound standing wave, that generates a pressure field having at least one node of minimum pressure amplitude. An acoustic extension structure is located proximate to said separation channel for positioning said acoustic node off center in said acoustic area and concentrating the large particles in said recovery fluid stream.
摘要翻译：超声波微流体系统包括用于输送包含小颗粒和大颗粒的样品流体的分离通道，所述样品流体基本上平行于与其接触的回收流体相邻流动。声换能器产生超声驻波，其产生具有至少一个最小压力振幅节点的压力场。声学延伸结构位于所述分离通道附近，用于将所述声音节点偏离所述声学区域的中心，并将大颗粒集中在所述回收流体流中。

9. 发明申请

US20140216992A1 MICROFLUIDIC ULTRASONIC PARTICLE SEPARATORS WITH ENGINEERED NODE LOCATIONS AND GEOMETRIES 有权
标题翻译：具有工程节点位置和几何的微流体超声颗粒分离器
公开(公告)号：US20140216992A1
公开(公告)日：2014-08-07
申请号：US14246981
申请日：2014-04-07
申请人： Lawrence Livermore National Security, LLC
发明人： Klint A. Rose , Karl A. Fisher , Douglas A. Wajda , Raymond P. Mariella, JR. , Christopher Bailey , Dietrich Dehlinger , Maxim Shusteff , Byoungsok Jung , Kevin D. Ness
IPC分类号： B01D21/28
CPC分类号： B01L3/50273 , B01D21/28 , B01D21/283 , B01D2221/10 , B01L3/502761 , B01L2200/0631 , B01L2200/0636 , B01L2200/0652 , B01L2300/0816 , B01L2300/0864 , B01L2400/0439 , B01L2400/0487 , G01N1/4077 , G01N33/48728 , G01N33/491 , G01N2001/4094
摘要： An ultrasonic microfluidic system includes a separation channel for conveying a sample fluid containing small particles and large particles, flowing substantially parallel, adjacent to a recovery fluid, with which it is in contact. An acoustic transducer produces an ultrasound standing wave, that generates a pressure field having at least one node of minimum, pressure amplitude. An acoustic extension structure is located proximate to said separation channel for positioning said acoustic node off center in said acoustic area and concentrating the large particles in said recovery fluid stream.
摘要翻译：超声波微流体系统包括用于输送包含小颗粒和大颗粒的样品流体的分离通道，所述样品流体基本上平行于与其接触的回收流体相邻流动。声换能器产生超声波驻波，其产生具有至少一个最小压力振幅节点的压力场。声学延伸结构位于所述分离通道附近，用于将所述声音节点偏离所述声学区域的中心，并将大颗粒集中在所述回收流体流中。

10. 发明授权

US09321050B2 Microfluidic ultrasonic particle separators with engineered node locations and geometries 有权
公开(公告)号：US09321050B2
公开(公告)日：2016-04-26
申请号：US14659825
申请日：2015-03-17
申请人： Lawrence Livermore National Security, LLC
发明人： Klint A. Rose , Karl A. Fisher , Douglas A. Wajda , Raymond P. Mariella, Jr. , Christopher Bailey , Dietrich Dehlinger , Maxim Shusteff , Byoungsok Jung , Kevin D. Ness
IPC分类号： B01L3/00 , B01D21/28 , G01N33/49 , G01N33/487 , G01N1/40
CPC分类号： B01L3/50273 , B01D21/28 , B01D21/283 , B01D2221/10 , B01L3/502761 , B01L2200/0631 , B01L2200/0636 , B01L2200/0652 , B01L2300/0816 , B01L2300/0864 , B01L2400/0439 , B01L2400/0487 , G01N1/4077 , G01N33/48728 , G01N33/491 , G01N2001/4094
摘要： An ultrasonic microfluidic system includes a separation channel for conveying a sample fluid containing small particles and large particles, flowing substantially parallel, adjacent to a recovery fluid, with which it is in contact. An acoustic transducer produces an ultrasound standing wave, that generates a pressure field having at least one node of minimum pressure amplitude. An acoustic extension structure is located proximate to said separation channel for positioning said acoustic node off center in said acoustic area and concentrating the large particles in said recovery fluid stream.

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