CN110382206A - 并用使用数字光处理投影仪及激光扫描仪的三维印刷装置 - Google Patents
并用使用数字光处理投影仪及激光扫描仪的三维印刷装置 Download PDFInfo
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Abstract
本发明涉及采用复合光学引擎来生成芯‑壳光固化造型物的并用数字光处理投影仪及激光扫描仪的三维印刷装置,本发明包括:树脂储存部,用于储存光固化树脂;数字光处理投影仪部,配置于所述树脂储存部的上部,用于向所述树脂储存部投射与造型物的轴向剖面的芯部相对应的光;造型台部,以能够从所述树脂储存部的底部沿着垂直方向升降的方式设置,在上部形成造型物;激光扫描仪部,配置于所述树脂储存部的上部,用于向所述树脂储存部扫描与造型物的轴向剖面的壳部相对应的光;扫描仪移送部,以能够使所述激光扫描仪部沿着x轴方向移动的方式支撑及移送所述激光扫描仪部;图像处理部,将造型物的一个剖面图像划分为芯部分和壳部;以及控制部,通过接收所述芯部分来向所述数字光处理投影仪部输出,接收所述壳部,基于所接收的所述壳部来控制所述激光扫描仪部及所述扫描仪移送部,以及基于造型物的数据来使所述造型台部升降。
Description
技术领域
本发明涉及并用数字光处理(DLP,Digital Light Processing)投影仪及激光扫描仪的三维印刷装置,更具体地,涉及通过应用复合光学引擎来生成芯-壳光固化造型物的并用使用数字光处理投影仪及激光扫描仪的三维印刷装置。
背景技术
形成三维结构物的技术有如下的多种方式:挤出热塑性塑料类来进行层叠;向装有液体状态的光固化树脂的水槽(Vat)内照射激光束,每当水槽内的造型物形成一层(Layer)时,水槽将下降与层的厚度相同的高度,之后重新照射激光,来形成立体结构物;向液体状态的光固化树脂(照射光后固化的树脂)照射形状与所要形成的造型相同的光,并使树脂层层固化,来形成立体结构物;利用喷墨印刷机的原理,从印刷机头部的喷嘴向粉末原料挤出液体状态的彩色墨水和固化物质(粘结剂),来形成立体结构物;在没有粘结剂的情况下,直接对金属粉末进行烧结。
其中,光固化方式的印刷机具有所形成的三维结构物非常精致、表面质量优秀的优点,但为了形成大型三维造型物,以能够覆盖大面积为目的,需使用多个数字光处理投影仪或xy激光扫描仪,或者需使数字光处理投影仪、xy激光扫描仪或树脂储存部沿着x轴方向或y轴方向移动。根据这种现有的光固化印刷机,需要对数字光处理投影仪或xy激光扫描仪的投射图像的倾斜度、位置及大小进行补正的校正(Alignment)过程,因此,存在需开发高难度补正算法来进行应用的问题。
[现有技术文献]韩国授权专利第10-1504419号
发明内容
技术问题
本发明用于解决现有方式中存在的问题,本发明的目的在于,提供可以仅利用一个数字光处理投影仪和单轴激光扫描仪来制作大型三维造型物的并用数字光处理投影仪及激光扫描仪的三维印刷装置。
并且,本发明的目的在于,通过利用数字光处理投影仪来形成与大型三维造型物的大体骨架相对应的芯部(Core)以及通过利用单轴激光扫描仪来形成与大型三维造型物的精密表面相对应的壳部(Shell)并可快速、准确地输出精密的大型造型物的并用数字光处理投影仪及激光扫描仪的三维印刷装置。
技术方案
用于实现所述目的的本发明包括:树脂储存部,其用于储存光固化树脂;数字光处理投影仪部,其配置于所述树脂储存部的上部,其用于向所述树脂储存部投射与造型物的轴向剖面的芯部相对应的光;造型台部,其可以从所述树脂储存部的底部沿着垂直方向升降,在上部形成造型物;激光扫描仪部,其配置于所述树脂储存部的上部,用于向所述树脂储存部扫描与造型物的轴向剖面的壳部相对应的光;扫描仪移送部,其支撑及移送所述激光扫描仪部,以使所述激光扫描仪部沿着x轴方向移动;图像处理部,其将造型物的一个剖面图像划分为芯部和壳部;以及控制部,其通过接收所述芯部来向所述数字光处理投影仪部输出,接收所述壳部,基于所接收的所述壳部来控制所述激光扫描仪部及所述扫描仪移送部,基于造型物的数据来使所述造型台部升降。
并且,所述激光扫描仪部可以为电流镜扫描仪。
另一方面,所述激光扫描仪部可以为多面镜扫描仪。
并且,所述激光扫描仪部可以为微机电系统(MEMS)反射镜扫描仪。
另一方面,所述数字光处理投影仪部可以包括:高功率紫外发光二极管(UV LED),其用于照射光;反射镜,其用于反射从所述高功率紫外发光二极管照射的光;透镜,其朝向所述树脂储存部的上部投射从所述反射镜反射的光;以及投影仪外罩,其用于容纳所述高功率紫外发光二极管、所述反射镜以及所述透镜。
并且,所述图像处理部调整所述芯部的大小,使得沿着所述芯部的轮廓线包含与所述壳部重叠的区域的预定厚度。
发明的效果
根据本发明的并用数字光处理投影仪及激光扫描仪的三维印刷装置,仅利用一个被固定的数字光处理投影仪和通过控制来沿着x轴方向进行往复移动的单轴激光扫描仪就能够制作大型三维造型物。
并且,根据本发明的并用数字光处理投影仪及激光扫描仪的三维印刷装置,通过利用可进行高速作业的数字光处理投影仪来形成与大型三维造型物的大体骨架相对应的芯部以及通过利用可进行精密作业的单轴激光扫描仪来形成与大型三维造型物的精密表面相对应的壳部,从而可快速、准确地输出精密的大型造型物。
本发明的效果并不限定于以上所提及的内容,可以通过以下记载的内容明确理解未提及的其他效果。
附图说明
图1为简要示出本发明的并用数字光处理投影仪及激光扫描仪的三维印刷装置的图。
图2为示出本发明的并用数字光处理投影仪及激光扫描仪的三维印刷装置的结构的图。
图3a为示出通过本发明的并用数字光处理投影仪及激光扫描仪的三维印刷装置输出的三维造型物的一例的图。
图3b及图3c为示出用于输出图3a中所示的三维造型物的轴向剖面的图。
图4a为示出通过本发明的并用数字光处理投影仪及激光扫描仪的三维印刷装置输出的三维造型物的一例的图。
图4b为示出用于输出图4a中所示的三维造型物的轴向剖面的图。
图5为示出图1及图2中所示的数字光处理投影仪部的一例的图。
图6为示出图1及图2中所示的激光扫描仪部为多面镜扫描仪的情况的图。
图7为示出图1及图2中所示的激光扫描仪部所使用的电流镜扫描仪的电流镜及电流镜驱动部的图。
图8为用于说明本发明的并用数字光处理投影仪及激光扫描仪的三维印刷装置的动作的图。
[附图标记的说明]
100:树脂储存部
200:数字光处理投影仪部
300:造型台部
400:激光扫描仪部
500:扫描仪移送部
600:图像处理部
700:控制部
具体实施方式
以下,参照附图,对本发明的优选实施例进行说明。本发明的实施方式可以改变为多种不同的实施方式,本发明的范围并不限定于以下说明的实施方式。为了更加明确地进行说明,可以夸张地显示附图中的结构要素的形状及大小等,在附图中,相同的附图标记表示相同的结构要素。
而且,在说明书全文中,当表示某个部分与其他部分“相连接”时,这不仅包括“直接连接”的情况,还包括在中间隔着其他器件“电连接”的情况。并且,当表示某个部分“包括”或“设置有”某个结构要素时,只要没有特别相反的记述,则意味着还可以包括或设置有其他结构要素,而不是排除其他结构要素。
图1及图2为示出本发明的并用数字光处理投影仪及激光扫描仪的三维印刷装置的图,本发明的并用数字光处理投影仪及激光扫描仪的三维印刷装置包括树脂储存部100、数字光处理投影仪部200、造型台部300、激光扫描仪部400、扫描仪移送部500、图像处理部600以及控制部700。
树脂储存部100用于储存光固化树脂101,优选地,以适合形成大型三维造型物的方式采用具有约400×400mm以上的水平剖面积的储存槽。
在此情况下,为使从数字光处理投影仪部200投射的光及从激光扫描仪部400照射的光的焦点在储存于树脂储存部100的光固化树脂101的表面准确聚焦,可以设置用于使储存于树脂储存部100的光固化树脂101的表面高度维持在规定水平的装置(未图示)。例如,控制部700可以包括传感器,所述传感器用于检测光固化树脂101的表面的位置,可以通过控制来向树脂储存部100继续供给光固化树脂101或使容纳光固化树脂101的树脂储存部100进行升降,以使得储存于树脂储存部100的光固化树脂101的表面高度维持规定水平。
数字光处理投影仪部200配置于树脂储存部100的上部,向树脂储存部100投射与造型物的轴向剖面的芯部相对应的光。在此情况下,为了以单一投射区域覆盖树脂储存部100的整个上部面,如图2所示,优选地,数字光处理投影仪部200以固定的状态配置于树脂储存部100的上部,数字光处理投影仪部200与树脂储存部100之间的距离比激光扫描仪部400与树脂储存部100之间的距离大。
造型台部300以可从树脂储存部100的底部沿着垂直方向升降的方式设置,在上部形成三维造型物。即,造型台部300用于使光固化树脂101依次被固化成三维形状,可以通过控制部700的控制来沿着三维造型物的高度方向移动。例如,控制部700可以通过使造型台部300下降来使得高度达到约5μm的光固化树脂填充到造型台部300的底面上,通过对数字光处理投影仪部200及激光扫描仪部400进行控制,来使得造型物剖面芯部及壳部在所填充的光固化树脂上固化,能够以使得高度达到约5μm的光固化树脂重新填充到已固化的造型物剖面芯部及壳部上的方式使造型台部300下降。并且,在三维造型物完全形成于造型台部300的底面上的情况下,控制部700能够以可使所形成的三维造型物向光固化树脂101外露出的方式对造型台部300进行升降控制。
另一方面,优选地,造型台部300在由丙烯酸等的材料形成的底面外罩上形成软膜及离型膜,以能够从底面轻松分离完全形成的三维造型物。即,造型台部300可以通过在与三维造型物相接触的面形成离型膜,来防止三维造型物固着,由此可在从造型台部300摘除完全形成的三维造型物的过程中防止三维造型物受损。并且,造型台部300可以在底面外罩与离型膜之间设置具有规定厚度和弹性的硅酮类膜,即,软膜。这种软膜可以在造型台部300的底面外罩与三维造型物之间起到缓冲作用,能够起到以使得三维造型物并不受损的状态轻轻地从离型膜分离三维造型物的作用。
激光扫描仪部400配置于树脂储存部100的上部,根据控制部700的控制,来向树脂储存部100扫描与三维造型物的轴向剖面的壳部相对应的光。在此情况下,激光扫描仪部400可以为电流镜扫描仪、多面镜扫描仪或微机电系统反射镜扫描仪,如图2所示,优选为可沿着y轴方向执行扫描动作的单轴激光扫描仪。
扫描仪移送部500以可根据控制部700的控制来使得激光扫描仪部400沿着x轴方向移动的方式支撑及移送激光扫描仪部400。其中,如图2所示,在扫描仪移送部500设置与x轴方向平行的第一导轨510及第二导轨520,包括马达、齿轮、气缸等体现驱动原理的多种结构,从而可在树脂储存部100的一侧面与另一侧面之间往复移送激光扫描仪部400。
即,激光扫描仪部400通过调整光照射位置来沿着y轴方向覆盖储存于树脂储存部100的光固化树脂101的表面,通过使扫描仪移送部500移送激光扫描仪部400,将沿着x轴方向覆盖储存于树脂储存部100的光固化树脂101的表面,从而激光扫描仪部400可以向光固化树脂101的表面中的所有位置扫描与三维造型物的轴向剖面的壳部相对应的光。
图像处理部600可以根据控制部700的控制来将三维造型物的一个剖面图像划分为芯部和壳部,并向控制部700输出划分后的图像。在此情况下,图像处理部600可以在将光固化立体造型术(STL,STereoLithography)文件等用于输出三维造型物的文件转换为G-code文件等的切片文件之后生成划分后的图像,可以通过直接接收切片文件来生成划分后的图像,但并不限定于此。并且,为了便于说明,区分为图像处理部600和控制部700来进行了说明,但是,可以采用在软件方面或硬件方面与控制部700集成为一体的形态。
图3a至图3c为示出可以通过本发明的并用数字光处理投影仪及激光扫描仪的三维印刷装置来输出的球及通过图像处理部600来将图3a中的球的一个剖面图像划分为芯部和壳部的图像的图。
例如,在所要输出的三维造型物为如图3a所示的球的情况下,对于球的一个剖面图像(C+S),图像处理部600生成划分为壳部S和芯部C的数据,其中,壳部S为需进行精密硬化的外部的达到规定厚度的部分,芯部C为除壳部S之外的部分,之后,图像处理部600可以向控制部700输出所生成的数据。
在这之后,控制部700利用与芯部C相关的数据来控制数字光处理投影仪部200,从而向树脂储存部100投射与三维造型物的轴向剖面的芯部相对应的光。即,控制部700通过使得以STL格式存储的图像文件被切片的G-code等来识别用于形成三维结构物的水平剖面的各个坐标,根据所识别的坐标,控制将要通过数字光处理投影仪部200投射的光的形态。
经过如上所述的步骤,借助通过数字光处理投影仪部200投射的光,光固化树脂101按照球的芯部C部分的形状来以约5μm的高度实现高速固化。在此情况下,已固化的芯部C部分的表面并不精密,而是有可能略微粗糙。
接着,控制部700利用与壳部S相关的数据来控制激光扫描仪部400,使得激光扫描仪部400向树脂储存部100扫描与三维造型物的轴向剖面的壳部相对应的激光。即,控制部700通过使得以STL格式存储的图像文件被切片的G-code等来识别用于形成三维结构物的水平剖面的各个坐标,根据所识别的坐标,控制将要通过激光扫描仪部400照射的光的路径。
经过如上所述的步骤,借助通过激光扫描仪部400照射的光,光固化树脂101按照球的壳部S部分的形状来以约5μm的高度实现精密固化。在此情况下,激光扫描仪部400需使三维造型物的最外侧的表面实现精密固化,光扫描速度有可能略微慢,但与现有的仅利用电流镜扫描仪等的三维印刷机不同,在已经使芯部C部分固化的状态下,仅需要相当于薄薄的最外侧部分的壳部S部分固化即可,因而与需使球的一个剖面整体固化的现有方式所消耗的时间相比,可明显减少作业时间。
另一方面,在对于球的一个剖面图像生成划分为壳部S和芯部C的数据的情况下,其中,壳部S为需进行精密硬化的外部的达到规定厚度的部分,芯部C为除壳部S之外的部分,图像处理部600能够以使壳部S和芯部C在边界面略微重叠的方式设定重叠O部分。在此情况下,图像处理部600提供的与壳部相关的数据可以为图3c中的壳部加上重叠(S+O)部分的数据,图像处理部600提供的与芯部相关的数据可以为图3c中的芯部加上重叠(C+O)部分的数据。
即,图像处理部600能够调整芯部的大小,使得沿着芯部的轮廓线包含与壳部重叠的区域的预定厚度,例如,可以增加芯部的大小。由此,可以使得壳部和芯部的边界面被坚固地固化,最终,将提高完全形成的三维造型物的强度。
图4a及图4b为示出可以通过本发明的并用数字光处理投影仪及激光扫描仪的三维印刷装置输出的杯子及通过图像处理部600来将图4a中的杯子的一个剖面图像划分为芯C部分和壳S部分的图像的图。即,根据本发明的三维印刷装置,可以通过调整芯部和壳部的形状来精密、快速地输出多种三维造型物。并且,在输出如图4a所示的杯子形状的三维造型物的情况下,与图3c所示的情况相同地,图像处理部600能够以使壳部S和芯部C在边界面略微重叠的方式设定重叠O部分,从而提高所输出的三维输出物的强度。
控制部700从图像处理部600接收芯部来向数字光处理投影仪部200输出,从图像处理部600接收壳部,基于所接收的壳部,控制激光扫描仪部400及扫描仪移送部500,基于造型物的数据来使造型台部300升降。在此情况下,由于数字光处理投影仪部200被固定,因此,当控制部700控制数字光处理投影仪部200时,除了向数字光处理投影仪部200输出与芯部相关的数据之外,无需进行其他校正相关控制动作。同时,在激光扫描仪部400为单轴激光扫描仪的情况下,控制部700在基于壳部数据来抽取将要照射光的y轴坐标值之后,向激光扫描仪部400传递所抽取的值,通过控制扫描仪移送部500来使激光扫描仪部400沿着x轴方向分段移动规定距离,也是无需进行其他校正相关控制动作。
图5为简要示出图1及图2中所示的数字光处理投影仪部200的一例的图,数字光处理投影仪部200可以包括高功率紫外发光二极管210、反射镜220、透镜230以及投影仪外罩240。
高功率紫外发光二极管210(Ultra Violet Light Emitting Diode)通过产生紫外线光来朝向反射镜220进行照射。其中,优选地,当供给约500mA的电流时,高功率紫外发光二极管210的光功率应达到约560mW。
反射镜220朝向透镜230的方向反射从高功率紫外发光二极管210照射的光。虽然已在图5中简要示出,但反射镜220可以为数字微镜器件(DMD,Digital MicromirrorDevice)芯片,即,可以为集成微镜而成的半导体光开关芯片。
透镜230向树脂储存部100的上部投射从反射镜反射的光,即,向光固化树脂101的表面投射从反射镜反射的光。
投影仪外罩240在内部容纳高功率紫外发光二极管210、反射镜220以及透镜230,能够以使得数字光处理投影仪部200固定配置于树脂储存部100上部的方式提供规定的结合结构。在此情况下,投影仪外罩240设置于树脂储存部100的上部,可以使透镜230的照射范围231处于可覆盖树脂储存部100的整个上部的高度。
图6为示出作为在图1及图2中所示的激光扫描仪部400的一例的多面镜扫描仪410的图,本发明的多面镜扫描仪410包括:激光二极管411;准直透镜412,使得从激光二极管411照射的激光相对于光轴形成平行光或收敛光;柱状透镜413,使得经过准直透镜412的激光以水平方向的线性方式成像;多面镜驱动用马达415,使得多面镜414匀速旋转;f-θ透镜416,相对于光轴具有规定的折射率,使得在多面镜414反射的匀速的光沿着主扫描方向偏光,通过补正像差来使焦点聚焦在扫描面上;成像用反射镜417,沿着规定的方向反射经过f-θ透镜416的激光,来在作为成像面的光固化树脂的表面以点状成像;同步检测传感器419,通过接收激光来实现水平同步化;以及同步信号检测用反射镜418,用于向同步检测用光传感器侧反射激光。这种部件通常组装在一个框架上来构成多面镜扫描仪410。
察看形成如上所述的结构的多面镜扫描仪410的动作如下。首先,通过控制部700向激光二极管411施加与所要扫描的三维造型物的轴向剖面的壳部相对应的信号,激光二极管411根据控制部700的信号来开启/关闭。并且,从激光二极管411释放的激光经过准直透镜412及柱状透镜413来被整形成规定的束A,经过整形的激光通过多面镜414来沿着与多面镜的旋转平面平行的光照射方向进行扫描。这种扫描光通过f-θ透镜416扩散并在成像用反射镜417反射后按规定大小在光固化树脂的表面上成像。像这样,若沿着y轴方向结束第一线的光照射扫描,则扫描仪移送部500根据控制部700的控制,来按规定速度使多面镜扫描仪410沿着x轴方向移动,以与多面镜扫描仪410的分辨率相对应。接着,多面镜扫描仪410以与对所述第一线进行光照射扫描的步骤相似的方式对作为第一线之后的线的第二线执行光照射扫描。所述步骤可以反复执行到完全输出三维造型物为止。
并且,多面镜414及多面镜驱动用马达415用于使激光偏向,可以使用如图7所示的设置有电流镜424及电流镜驱动用马达425的电流镜扫描仪,来代替多面镜414及多面镜驱动用马达415,或可以使用在所述内容中所述的设置有数字微镜器件芯部片(未图示)的微机电系统反射镜扫描仪,但并不限定于此。
图8为用于说明本发明的并用数字光处理投影仪及激光扫描仪的三维印刷装置的动作的图,参照图1至图8,如下说明本发明的并用数字光处理投影仪及激光扫描仪的三维印刷装置的动作。
首先,控制部700以使得高度达到约5μm的光固化树脂101填充到已固化的造型物剖面芯部及壳部上的方式使造型台部300下降。
接着,控制部700从图像处理部600接收与芯部相关的数据来向数字光处理投影仪部200输出。数字光处理投影仪部200根据控制部700的控制,来向树脂储存部100投射与造型物的轴向剖面的芯部相对应的光(第一阶段的高速光固化步骤)。
之后,控制部700利用与壳部相关的数据来控制激光扫描仪部400,由此向树脂储存部100扫描与三维造型物的轴向剖面的壳部相对应的激光(第二阶段的精密光固化步骤)。控制部700在基于壳部数据来抽取所要照射光的y轴坐标值之后,向激光扫描仪部400传递所抽取的值,从而可以通过激光扫描仪部400执行以y轴线为单位的激光扫描作业。即,控制部700使得激光扫描仪部400执行对一个线的扫描,若扫描结束,则控制部700控制扫描仪移送部500来使激光扫描仪部400沿着x轴方向移动规定距离,例如,移动与一个线的厚度相对应的距离,并以重新通过激光扫描仪部400对下一线进行扫描的方式进行控制,以这种方式进行精密扫描作业。
若对三维造型物的轴向剖面中的一个剖面的光固化动作结束,则控制部700以使得高度达到约5μm的光固化树脂101重新填充到已固化的造型物剖面芯部及壳部上的方式使造型台部300下降,可以反复执行所述步骤,直到完全形成三维造型物。
如之前所述的内容,现有的三维印刷机为了输出大型三维造型物而使用多个数字光处理或xy激光扫描引擎,因此,需具备用于对各个投射图像的倾斜度、位置及大小进行补正的高难度补正算法。
但是,根据如上所述的本发明的装置,即使没有补正算法,也可以利用一个数字光处理投影仪和单轴激光扫描仪来快速、精密地输出大型三维造型物。
以上,以优选实施例为中心来察看了本发明。本发明所属技术领域的普通技术人员能够理解的是,可以在不脱离本发明的本质特征的范围内以变形的实施方式实现本发明。因此,应以说明的观点看待所公开的实施例,而不是限定的观点。本发明的范围应根据发明要求保护范围而定,而非以上记述的说明,与发明要求保护范围等同的范围内的所有不同之处应解释为属于本发明。
Claims (6)
1.一种并用数字光处理投影仪及激光扫描仪的三维印刷装置,其特征在于,包括:
树脂储存部,其用于储存光固化树脂;
数字光处理投影仪部,其配置于所述树脂储存部的上部,用于向所述树脂储存部投射与造型物的轴向剖面的芯部相对应的光;
造型台部,其能够从所述树脂储存部的底部沿着垂直方向升降,在上部形成造型物;
激光扫描仪部,其配置于所述树脂储存部的上部,用于向所述树脂储存部扫描与造型物的轴向剖面的壳部相对应的光;
扫描仪移送部,其支撑及移送所述激光扫描仪部,以使所述激光扫描仪部沿着x轴方向移动;
图像处理部,其将造型物的一个剖面图像划分为芯部和壳部;以及
控制部,其通过接收所述芯部来向所述数字光处理投影仪部输出,接收所述壳部,基于所接收的所述壳部来控制所述激光扫描仪部及所述扫描仪移送部,以及基于造型物的数据来使所述造型台部升降。
2.根据权利要求1所述的并用数字光处理投影仪及激光扫描仪的三维印刷装置,其特征在于,所述激光扫描仪部为电流镜扫描仪。
3.根据权利要求1所述的并用数字光处理投影仪及激光扫描仪的三维印刷装置,其特征在于,所述激光扫描仪部为多面镜扫描仪。
4.根据权利要求1所述的并用数字光处理投影仪及激光扫描仪的三维印刷装置,其特征在于,所述激光扫描仪部为MEMS反射镜扫描仪。
5.根据权利要求1所述的并用数字光处理投影仪及激光扫描仪的三维印刷装置,其特征在于,所述数字光处理投影仪部包括:
高功率UV LED,其用于照射光;
反射镜,其用于反射从所述高功率UV LED照射的光;
透镜,其朝向所述树脂储存部的上部投射从所述反射镜反射的光;以及
投影仪外罩,其用于容纳所述高功率UV LED、所述反射镜以及所述透镜。
6.根据权利要求1所述的并用数字光处理投影仪及激光扫描仪的三维印刷装置,其特征在于,所述图像处理部调整所述芯部的大小,使得沿着所述芯部的轮廓线包含与所述壳部重叠的区域的预定厚度。
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