Patent ID: 11911969
Assignee: INDUSTRY-ACADEMIC COOPERATION FOUNDATION, DANKOOK UNIVERSITY
Field: Other special machines (Mechanical engineering)
Classification: CPC B  G | IPC B  G

Claim 0:
1. A 3D printer capable of adjusting a light transmission rate, comprising:
a plate on which a forming material is disposed;
a light source disposed above the plate and emitting light for curing the forming material;
a course setting unit setting a processing course of the light emitted to the forming material;
a beam shifting speed determination unit determining a beam shifting speed in each processing zone of the processing course set by the course setting unit; and
a light intensity determination unit determining an accumulated intensity of light emitted to the forming material in each processing zone of the processing course, wherein the accumulated intensity of light is determined based on the beam shifting speed in each processing zone of the processing course determined by the beam shifting speed determination unit;
a translucent plate disposed between the forming material and the light source and adjusting a transmission rate of the light emitted to the forming material based on the beam shifting speed in each processing zone of the processing course and the accumulated intensity of light;
wherein a transparency in each processing zone of the translucent plate is inversely proportional to the accumulated intensity of light, and the transmission rate of light is adjusted corresponding to the transparency of the translucent plate.