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1
US2021039310A1
SLM SYSTEM AND METHOD FOR OPERATING THE SLM SYSTEM
Publication/Patent Number: US2021039310A1 Publication Date: 2021-02-11 Application Number: 16/964,242 Filing Date: 2019-01-22 Inventor: Geisen, Ole   Assignee: Siemens Aktiengesellschaft   IPC: B29C64/153 Abstract: A method for operating an SLM system, includes the following steps: a) providing a construction space in the SLM system, which construction space includes a component and, adjacent thereto, a powder, a surface of the construction space that faces upward having regions that are formed by the component and other regions that are formed by the powder; b) scanning the surface that faces upward with laser radiation, the power and duration of action of which are selected in such a way that the component and the powder are not melted; c) detecting radiation that results from interaction of the laser radiation with the construction space; d) inferring a position and dimensions of the component from the radiation detected in step c).
2
US2021001540A1
SYSTEM AND METHOD FOR SUBMICRON ADDITIVE MANUFACTURING
Publication/Patent Number: US2021001540A1 Publication Date: 2021-01-07 Application Number: 17/025,505 Filing Date: 2020-09-18 Inventor: Saha, Sourabh Kumar   Panas, Robert Matthew   Chen, Shih-chi   Assignee: Lawrence Livermore National Security, LLC   IPC: B29C64/135 Abstract: The present disclosure relates to a method for performing an additive manufacturing operation to form a structure by processing a photopolymer resist material. A laser beam is directed at a tunable mask. At least one emergent beam is collected from a plurality of emergent beams emerging from the tunable mask. The at least one emergent beam is collimated to create a collimated beam. Each emergent beam from the tunable mask has a plurality of beam lets of varying or identical intensity, and each beam let emerges from a unique subsection or region of the tunable mask. The collimated beam is focused into a laser beam which is projected as an image plane onto or within the photopolymer resist material, such that the same optical path length is created between the tunable mask and the focused image plane for all optical frequencies of the focused laser beam. The focused laser beam illuminates a select pattern of subsections on the tunable mask for a finite duration of time to cause simultaneous polymerization of select portions of the photopolymer resist material corresponding to the select pattern.
3
US2021023788A1
3-DIMENSIONAL OBJECT-FORMING APPARATUS
Publication/Patent Number: US2021023788A1 Publication Date: 2021-01-28 Application Number: 16/766,930 Filing Date: 2018-12-07 Inventor: Shimoda, Akio   Takahashi, Keisuke   Kawai, Kazunori   Echigo, Takaharu   Assignee: HONDA MOTOR CO., LTD.   IPC: B29C64/268 Abstract: A 3dimensional object-forming apparatus is provided which may avoid lowering of irradiation efficiency of laser light due to fumes and so forth while avoiding lowering of quality of the formed object. A shroud 20 includes an inside partition wall portion 21 that demarcates an inside space S1 which extends from one end opening 202 to another end opening 206, and an outside partition wall portion 22 that opens in the other end opening 206 of a shroud 20 on an outside of the inside space S1 and demarcates, together with the inside partition wall portion 21, an outside space S2 which closes in a position closer to the one end opening 202 than the other end opening 206 of the shroud. A ventilation area of the inside space S1 in the other end opening 206 of the shroud 20 is larger than the ventilation area of the inside space S1 in an upstream portion closer to the one end opening 202 than the other end opening 206.
4
US2021016493A1
HEAT TREATMENT OF 3D PRINTED PARTS FOR IMPROVING TRANSPARENCY, SMOOTHNESS AND ADHESION OF LAYERS
Publication/Patent Number: US2021016493A1 Publication Date: 2021-01-21 Application Number: 16/766,809 Filing Date: 2018-11-21 Inventor: Bracha, Arik   Gal-or, Eran   Assignee: D. Swarovski KG   IPC: B29C64/118 Abstract: A system for improving transparency and/or smoothness and/or adhesion of layers of a 3D printed object, comprising: a base plate; a 3D printed object mounted on the base plate; a controller; a motion system connected with the base plate and controlled by the controller for enabling movement in Z axis and at least one more axis; and at least one treating device; the at least one treating device configured to be directed towards the 3D printed object for heating a target spot area on one of the outer surface and the inner surface of the 3D printed object during the movement of the base plate.
5
US10882247B2
Additive manufacturing device with release mechanism
Publication/Patent Number: US10882247B2 Publication Date: 2021-01-05 Application Number: 15/546,321 Filing Date: 2016-01-27 Inventor: Van, Esbroeck Hubertus Theodorus Petrus   Tan, Teck Wee   Sharma, Devansh   Lam, Siu Hon   Chin, Kah Fai   Assignee: STRUCTO PTE LTD   IPC: B29C64/264 Abstract: An additive manufacturing device has a vessel for containing a polymerizable material, a build platform and a curing unit. The vessel has a flexible wall which is at least partially transparent to radiation at one or more wavelengths at which the material is polymerizable. The build platform is movable relative to the vessel to position a build surface thereof to face the flexible wall. The curing unit has a rigid component with a planar contact surface, the rigid component being at least partially transparent to radiation at the one or more curing wavelengths, and a radiation module positioned to emit radiation through the rigid component. The rigid component and the vessel are movable relative to each other. In a first position, the planar contact surface of the rigid component is in contact with the flexible wall, and in a second position, the rigid component is separated therefrom.
6
US2021023772A1
METHOD AND APPARATUS FOR CREATING AND SINTERING FINE LINES AND PATTERNS
Publication/Patent Number: US2021023772A1 Publication Date: 2021-01-28 Application Number: 16/965,840 Filing Date: 2019-01-30 Inventor: Arutinov, Gari   Smits, Edsger Constant Pieter   Van, Den Brand Jeroen   Assignee: Nederlandse Organisatie voor toegepast-natuurwetenschappelijk onderzoek TNO   IPC: B29C64/112 Abstract: The invention aims to provide a contactless method to create small conductive tracks on a substrate. To this end a method is provided for selective material deposition, comprising depositing a first material on a substrate; followed by solidifying the first material selectively in a first solidified pattern by one or more energy beams; and followed by propelling non-solidified material away from the substrate by a large area photonic exposure, controlled in timing, energy and intensity to leave the solidified first pattern of the first material.
7
US10882135B2
Apparatus for additively manufacturing of three-dimensional objects
Publication/Patent Number: US10882135B2 Publication Date: 2021-01-05 Application Number: 16/041,607 Filing Date: 2018-07-20 Inventor: Bauer, Maximilian   Hertel, Kai   Assignee: Concept Laser GmbH   IPC: B29C64/286 Abstract: An apparatus for additively manufacturing three-dimensional objects includes a scanning unit configured to scan an energy beam over a build plane, and a focusing unit that includes an optical lens or lens system. The focusing unit may be configured to control a focal position of the energy beam based on calibration information. The focal position may be controlled by moving the focusing unit in the z-direction relative to the build plane without changing the focal length of the energy beam. Methods of calibrating such an apparatus may include moving a focusing unit in the z-direction relative to a build plane based on calibration information and scanning an energy beam over at least a portion of the build plane using a scanning unit, with the focusing unit being configured to control a focal position of the energy beam without changing the focal length of the energy beam.
8
WO2020028192A1
METHODS, SYSTEMS, AND DEVICES FOR THREE-DIMENSIONAL OBJECT GENERATION AND PHYSICAL MASK CURING
Publication/Patent Number: WO2020028192A1 Publication Date: 2020-02-06 Application Number: 2019043764 Filing Date: 2019-07-26 Inventor: Katz, Warren   Villafane, Irene   Lawless, Ross   Assignee: KATZ, Warren   VILLAFANE, Irene   CALT DYNAMICS LTD   LAWLESS, Ross   IPC: B29C64/286 Abstract: Systems, apparatus, and methods are described for additive manufacturing or three dimensional (3D) printing of objects using a set of physical masks. An additive manufacturing device can include one or more light sources, a vessel containing a volume of print material and a transparent base through which light can enter the vessel to cure a portion of the volume of print material, and a set of masks defining a series of patterns associated with layers of a 3D object that are each positionable between the light source and the transparent base to control a pattern of the light that is received through the transparent base and therefore the pattern of the cured portion of print material.
9
CN111823589A
一种3D打印用液晶掩膜版及其打印系统
Substantial Examination
Publication/Patent Number: CN111823589A Publication Date: 2020-10-27 Application Number: 202010784279.2 Filing Date: 2020-08-06 Inventor: 丁兴立   Assignee: 苏州驳凡熹科技有限公司   IPC: B29C64/286 Abstract: 本发明公开了一种3D打印用液晶掩膜版,包括液晶面板,所述液晶面板由第一液晶盒和第二液晶盒组成,所述第一液晶盒和第二液晶盒相互平行叠放在一起。一种3D打印系统,包括光源、液体树脂槽和位于光源与液体树脂槽之间的液晶掩膜版,所述光源为平行光源,竖直照射在液晶面板上,所述液体树脂槽内盛放有待打印的液体树脂,位于液晶掩膜版与光源相背一侧。本发明液晶面板采用相互平行且重叠设置的第一液晶盒和第二液晶盒,利用两种液晶盒共同作用,可以减小光透过率,实现黑态的产生并降低黑态的透过率,可以提高液晶器件的对比度与3D打印系统的打印精度。
10
CN210100708U
一种LED光屏3D打印机
Grant
Title (English): One led 3 d printe
Publication/Patent Number: CN210100708U Publication Date: 2020-02-21 Application Number: 201920350746.3 Filing Date: 2019-03-20 Inventor: 赖哲   Assignee: 云南盒子教育信息咨询有限公司   IPC: B29C64/129 Abstract: 本实用新型属于新型打印设备技术领域,具体涉及一种LED光屏3D打印机。所述的上、下偏振膜对应设置在液晶屏的上表面和下表面上,储液槽设置在上偏振膜上部,储液槽内铺设有储液槽底膜,光固化树脂装在储液槽内,所述的固化成型托板设置在储液槽上部;所述的菲涅尔透镜设置在下偏振膜下方,所述的聚焦透镜设置在菲涅尔透镜下方。本实用新型采用液晶屏,液晶屏的显示精度高。使得透过液晶屏成像的产品尺寸精度高,最高可以达到0.16mm。
11
CN107175815B
一种透射式液晶面板与3D打印装置
Grant
Publication/Patent Number: CN107175815B Publication Date: 2020-05-19 Application Number: 201710571113.0 Filing Date: 2017-07-13 Inventor: 王臣   陈杰   Assignee: 上海天马微电子有限公司   IPC: B29C64/124 Abstract: 发明提供一种透射式液晶面板及一种包含其的3D打印装置,所述透射式液晶面板包括:第一基板;第二基板,所述第二基板包括数据线与扫描线,所述数据线与扫描线交叉设置定义多个像素;液晶层,位于所述第一基板与所述第二基板之间;黑矩阵,限定多个开口区,与所述像素对应设置;单色量子点层,覆盖所述黑矩阵的开口区,所述单色量子点层在近紫外光的照射下可以激发出波长范围为385nm‑420nm的光线。本发明提供的透射式液晶面板不再设置彩色滤光层,提高了透射式液晶面板对近紫外光的透过率,当将该透射式液晶面板应用到3D打印装置中时,提升了感光树脂的感光效率及打印速度,提高了对背光源发射的近紫外光的利用率。
12
CN111619108A
一种新型光固化3D打印设备
Public
Publication/Patent Number: CN111619108A Publication Date: 2020-09-04 Application Number: 201910151802.5 Filing Date: 2019-02-28 Inventor: 李方   姚志锋   Assignee: 宁波市石生科技有限公司   北京清锋时代科技有限公司   IPC: B29C64/129 Abstract: 本发明公开了一种新型光固化3D打印设备,包括:料槽、光源、成型台、以及投影片切换机构与多张投影片,所述投影片切换机构用于切换投影片,该投影片切换机构将投影片可移动的放置在光源的光路上,所述投影片由透光部与遮光部组成,所述光源的光经过投影片后将透光部的图案投影在料槽的构造平面上,采用以上所述的设备后,本发明与现有技术相比,具有以下的优点:投影片切换机构能够根据设定的程序将多张投影片依次切换,实现投影图案跟随所述成型台的移动而变化,从而能够固化三维模型对应的层面,无需依赖DLP或LCD技术即可实现大面积的三维打印,且成本更低、寿命更长和设备更简单。
13
CN107498855B
一种光固化3D打印机以及3D打印方法
Grant
Title (English): d 3 printer and 3 d printing method
Publication/Patent Number: CN107498855B Publication Date: 2020-03-13 Application Number: 201710757432.0 Filing Date: 2017-08-29 Inventor: 李厚民   许蓓蓓   刘振亮   王翊坤   朱凯强   Assignee: 优你造科技(北京)有限公司   IPC: B29C64/129 Abstract: 一种光固化3D打印机,包括:用于容纳液态光敏树脂的储存单元和布置于所述储存单元下方的光源;以及,光源以中心波长为大于405nm至小于420nm的光线照射配置成显示以遮挡光线的遮光区域和透过光线的透光区域组成的图案的储存单元的底部;存储单元中盛放的光敏树脂在所述光线照射下发生固化,所述光敏树脂中含有光聚合引发剂的敏感波长包含大于405nm至小于420nm。
14
CN110809512A
成型装置和光学头装置
Substantial Examination
Title (English): Molding device and optical head device
Publication/Patent Number: CN110809512A Publication Date: 2020-02-18 Application Number: 201880039146.3 Filing Date: 2018-04-05 Inventor: 佐藤圭   Assignee: 索尼公司   IPC: B29C64/20 Abstract: 一种成型装置包括工作台、调节主体、光照射部和移动机构。所述工作台具有台面。所述调节主体具有表面和光催化剂层,所述表面包括面向台面的调节面,所述光催化剂层布置在所述调节面上。调节主体通过所述调节面调节待形成在所述台面上的成型物的材料在层叠方向上的位置。所述光照射部经由所述调节主体的所述光催化剂层对所述材料照射光。所述移动机构使所述工作台和所述调节主体相对移动。
15
EP3643478A1
MODELING DEVICE AND OPTICAL HEAD UNIT
Publication/Patent Number: EP3643478A1 Publication Date: 2020-04-29 Application Number: 18819965.7 Filing Date: 2018-04-05 Inventor: Satou, Kei   Assignee: Sony Corporation   IPC: B29C64/20 Abstract: [Solving Means] A molding apparatus includes a stage, a regulation body, a light irradiation section, and a movement mechanism. The stage has a stage surface. The regulation body has a surface including a regulation surface facing to the stage surface and a photocatalyst layer arranged on the regulation surface. The regulation body regulates a position in a lamination direction of a material of a molded object to be formed on the stage surface by the regulation surface. The light irradiation section irradiates the material with light via the photocatalyst layer of the regulation body. The movement mechanism relatively moves the stage and the regulation body.
16
US2020130263A1
PROCESS AND APPARATUS FOR PRODUCING 3D MOLDINGS COMPRISING A SPECTRUM CONVERTER
Publication/Patent Number: US2020130263A1 Publication Date: 2020-04-30 Application Number: 16/629,107 Filing Date: 2018-07-09 Inventor: Günther, Daniel   Scheck, Christoph   Bardos, Imre   Assignee: Voxeljet AG   IPC: B29C64/153 Abstract: A process and an apparatus for producing 3D moldings, wherein a spectrum converter is used. Said converter is defined as a means which absorbs a radiation, for example electromagnetic thermal radiation, and radiates or emits one or more defined wavelength ranges; the spectrum converter is here irradiated by an emitter of an electromagnetic thermal radiation (shortwave or longwave radiation), i.e. by a lamp or an emitter, for example an overhead emitter or a sintering unit, and then emits a defined electromagnetic thermal radiation
17
US2020016820A1
ADDITIVE MANUFACTURING VIA OPTICAL APERTURE DIVISION MULTIPLEXING
Publication/Patent Number: US2020016820A1 Publication Date: 2020-01-16 Application Number: 16/513,700 Filing Date: 2019-07-16 Inventor: Penny, Ryan Wade   Hart, Anastasios John   Assignee: Massachusetts Institute of Technology   IPC: B29C64/10 Abstract: Systems, devices, and methods for additive manufacturing as disclosed allow for improved optical access to a build platform. In at least some embodiments a multiplexing optic of an additive manufacturing device is configured to multiplex an arbitrary number of optical paths to a build platform along a substantially common optical axis by dividing a theoretical input aperture of the multiplexing optic into a plurality of sub-apertures. Each sub-aperture can independently receive and direct an optical path to the build platform. An optical path can be a light path from a light source or an optical process monitoring path from an optical process monitoring system or optical process monitoring device. In some embodiments, an optical path can enter the multiplexing optic off-axis and/or off-angle with respect to an optical axis of the multiplexing optic. The multiplexing optic can include one or more lens elements and/or one or more mirror elements.
18
CN110901058A
一种光固化3D打印系统和打印方法
Substantial Examination
Title (English): A Optical Solidification 3 d Printing System and Printing Method
Publication/Patent Number: CN110901058A Publication Date: 2020-03-24 Application Number: 201911347102.X Filing Date: 2019-12-24 Inventor: 季鹏凯   Assignee: 源秩科技(上海)有限公司   IPC: B33Y30/00 Abstract: 本发明涉及一种光固化3D打印系统和打印方法,包括料载体和铺料器,所述铺料器为刮板式结构,铺料器的铺料侧至少有部分区域为透光区,铺料器与载料体发生相对平移运动,将光敏打印料铺设到透光区相对的所述载料体上,且铺设的光敏打印料还处于被挤压状态时,光束透过透光区并根据要打印的三维模型信息选择性照射所述透光区铺料侧的光敏打印料形成固化层,铺料器与所述料载体能够相对竖向运动,打印过程中,使得铺料器与所述料载体之间的距离拉大,在料载体上由所述固化层形成固化模型。本发明能够实现铺料与光照固化的同步进行,有利于提升3D打印的速度和打印精度,适用范围更加广泛,且有利于降低设备成本和生产成本。
19
CN110662644A
用于预陶瓷聚合物立体光刻的孔系统
Substantial Examination
Title (English): Pore system for stereolithography of pre-ceramic polymers
Publication/Patent Number: CN110662644A Publication Date: 2020-01-07 Application Number: 201780091229.2 Filing Date: 2017-08-11 Inventor: J·m·亨德利   Z·c·埃克尔   E·c·舒勒   S·m·比斯波尔   Assignee: HRL实验室有限责任公司   IPC: B29C64/286 Abstract: 本申请提供一种用于自底向上的立体光刻装置的孔系统,所述孔系统包括具有下部开口的储液器、孔和边界密封件,所述孔包括定位在储液器内并覆盖下部开口的柔性隔膜,所述边界密封件包括围绕柔性隔膜的周边定位,所述边界密封件包括一个或多个边界密封部件,并且抵靠储液器固定柔性隔膜的周边。柔性隔膜由对立体光刻装置中使用的液体树脂以及由该装置制造的固化的光聚合物树脂部件具有低亲和性的材料形成。另外,当将固化的树脂部件从孔中拉出时,柔性隔膜能够变形,因此使得在固化的树脂和孔之间的界面处发生较低能量的混合模式粘合破坏,并且降低了对固化的光聚合物部件的内聚破坏的机会。
20
US2020262152A1
IN-PROCESS MONITORING IN LASER SOLIDIFICATION APPARATUS
Publication/Patent Number: US2020262152A1 Publication Date: 2020-08-20 Application Number: 16/760,014 Filing Date: 2018-11-07 Inventor: Dardis, John   Garrard, James Stephen   Healey, Callum   Assignee: RENISHAW PLC   IPC: B29C64/393 Abstract: A laser solidification apparatus for building objects by layerwise solidification of material. The laser solidification apparatus includes a build platform for supporting the object and a material bed, an optical module including a movable guiding element for directing the laser beam to solidify material of the material bed, and a detector module including a sensor for detecting radiation emitted from the material bed and transmitted to the sensor by the movable guiding element of the optical module. The detector module is removably mounted to the optical module.
Total 7 pages