Patent ID: 11890805
Assignee: YOUNG OPTICS INC.
Field: Other special machines (Mechanical engineering)
Classification: CPC B | IPC B

Claim 9:
10. A three-dimensional printing apparatus, comprising:
a container, configured to contain a liquid photosensitive material; and
a projecting structure, configured to provide a variety of molding beams to irradiate the liquid photosensitive material, wherein the variety of molding beams at least comprises a first molding beam with a first wavelength and a second molding beam with a second wavelength, and the first wavelength is different from the second wavelength;
wherein the projecting structure comprises a light combiner module and a light valve, disposed on transmission paths of the variety of molding beams, wherein the light combiner module is configured to transmit the variety of molding beams toward the light valve in the same direction;
wherein the wavelength of at least one of the variety of molding beams is less than 400 nm.