Patent ID: 11945156
Assignee: YOUNG OPTICS INC.
Field: Other special machines (Mechanical engineering)
Classification: CPC B | IPC B

Claim 10:
11. A three-dimensional printing apparatus, comprising:
a liquid tank, having an opening and capable of accommodating a photosensitive liquid, the liquid tank comprising:
a film, disposed in the bottom of the liquid tank and covering entire of the opening of the liquid tank and having a central area comprising a workpiece curing area and an outer area surrounding the central area; and
a plate, disposed under the film and capable of supporting the film and having at least one fluid tunnel extending from a first surface of the plate contacting the film to a second surface of the plate, wherein, during separation of a cured workpiece from the film, a lowest point of the film is lower than a lowest point of the plate;

a motor, connected to the liquid tank to incline the liquid tank; and
a light source device, disposed below the liquid tank and capable of providing a curing light beam passing through the plate and irradiating the workpiece curing area.