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    • 8. 发明授权
    • Method for determining resin curing areas in an optical stereolithography process
    • 在光学立体光刻工艺中确定树脂固化区域的方法
    • US06652797B1
    • 2003-11-25
    • US09700012
    • 2001-05-30
    • Ying Kit ChewYoke San WongYing His Jerry FuhHan Tong LohYeh Ching Andrew NeeYoo Sang ChooLi LuKah Bin LimChee Leong TeoEn Tang KangTetsuo Miyazawa
    • Ying Kit ChewYoke San WongYing His Jerry FuhHan Tong LohYeh Ching Andrew NeeYoo Sang ChooLi LuKah Bin LimChee Leong TeoEn Tang KangTetsuo Miyazawa
    • B29C3508
    • B29C64/135B33Y40/00B33Y50/00
    • A method for determining the areas of resin to be cured in an optical stereolithography process for rapid prototyping using sequential laser curing of layers of a resin having a selected thickness to produce a desired shape of cured resin. The method includes the steps of generating a computer model of desired shape and dividing the model into layers of thickness equal to the thickness of the layers each defining an area of resin to be cured. A set of layers including and sequentially adjacent an intermediate layer is selected and the areas in the intermediate layer of resin which would be oversized by laser curing of layers later in the curing sequence is determined. The 2-D layer data used to build a 3-D model is modified to compensate for the oversizing and the steps repeated by sequentially selecting sets of layers to include substantially all of the layers as the intermediate layer. The sets are sequentially selected with each subsequent set having the intermediate layer being the layer adjacent the intermediate layer of the previously selected set. The first selected set includes the first layer to be cured and the sequential subsequent sets respectively include as the intermediate layer the subsequently cured adjacent layer.
    • 一种用于通过使用具有所选厚度的树脂的层的顺序激光固化来快速成型的光学立体光刻工艺中的待固化树脂的面积以产生所需形状的固化树脂的方法。 该方法包括以下步骤:产生所需形状的计算机模型,并将模型划分成等于每个限定要固化的树脂区域的层的厚度的厚度的层。 选择包括中间层并且顺序地邻近中间层的一组层,并且确定在固化顺序中稍后通过激光固化的层中的树脂中间层中的区域。 用于构建3-D模型的2-D层数据被修改,以通过依次选择层数来包括基本上所有的层作为中间层来补偿过大和重复的步骤。 顺序地选择这些组,每个随后的集合具有中间层,其是与先前选择的集合的中间层相邻的层。 第一选定组包括待固化的第一层,并且顺序后续组分别包括随后固化的相邻层作为中间层。