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Apparatus and method for forming three-dimensional objects in stereolithography utilizing a laser exposure system having a diode pumped frequency quadrupled solid state laser
Apparatus and method for forming three-dimensional objects in stereolithography utilizing a laser exposure system having a diode pumped frequency quadrupled solid state laser
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机译：利用具有二极管泵浦频率四倍固态激光器的激光曝光系统在立体光刻中形成三维物体的设备和方法
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摘要
Embodiments of the instant invention are directed to laser exposure systems that employ a pulsed solid state laser to provide a reactive response wavelength and a pulse repetition rate specifically optimized for application to solidification of a liquid photopolymer in a stereolithographic process. The solid state laser employs two second harmonic crystals for generating an emission wavelength at about 320-345 nm and a pulse repetition rate, wherein the pulse repetition rate is selected such that a resulting pulse separation at the target surface is less than a width of the beam when the beam is being scanned at a desired velocity and an average exposure deposited by the beam is equal to a desired amount.
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