Three-dimensional structure forming apparatus provided with a liquid-level control system for a main resin tank
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United States of America Patent
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Sep 28, 1993
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app pub date -
Dec 29, 1992
filing date -
Jul 27, 1990
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Abstract
A three-dimensional structure forming apparatus for forming an optical three-dimensional structure by sequentially laminating hard resin layers by repeating a hard resin layer forming cycle by irradiating the surface of a liquid photosetting resin with a light beam including a main resin tank which contains liquid photosetting resin and has a liquid level control so as to maintain the liquid level of the photosetting resin constant. A replenishing tank and a resin supply, supply resin to the main resin tank at a predetermined rate so that the resin continuously overflows the main resin tank.
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