Additive manufacturing apparatus
AssigneeNational Chung Hsing University
InventorHsi-Fu SHIH
Life of this patent
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Abstract
An additive manufacturing apparatus is adapted to produce a solid object from a liquid resin and includes a vat, a lifting platform, an optical pickup head, and a planar scanning module mounted with the optical pickup head and operable to move the optical pickup head on a two-dimensional plane. The optical pickup head includes a focusing unit that has a first laser source for producing a laser beam, at least one first objective lens, and a first collimator lens disposed between the first laser source and the at least one first objective lens, such that the laser beam passes through the first collimator lens and the at least one first objective lens to strike and cure the liquid resin during movement of the lifting platform away from the vat.
Claims10
An additive manufacturing apparatus adapted to produce a solid object from a liquid resin, said additive manufacturing apparatus comprising:
- a vat adapted for containing the liquid resin;
- a lifting platform adapted to be dipped into the liquid resin and to serve as a base on which the solid object is cumulatively formed;
- a linear conveying module connected to said lifting platform for moving said lifting platform vertically away from said vat;
- an optical pickup head spaced apart from said vat, disposed at a side of said vat opposite to said lifting platform, and including a focusing unit that has
- a first laser source for producing a laser beam,
- at least one first objective lens spaced apart from said first laser source, and
- a first collimator lens disposed between said first laser source and said at least one first objective lens, such that said laser beam passes through said first collimator lens and said at least one first objective lens to strike the liquid resin and cure the liquid resin during a vertical movement of said lifting platform away from said vat;
- and
- a planar scanning module mounted with said optical pickup head and operable to move said optical pickup head on a two-dimensional plane.
Dependencies are inferred from the claim text.