Abstract: A method for calibrating light is adapted to a 3D object generating apparatus including a housing, an optical-transparent component, and a laser light generator. The housing has an accommodating space and an opening communicating with the accommodating space. The optical transparent component is arranged on the opening, and the laser light generator is arranged within the accommodating space. The method includes the following steps: providing a first photodetector and a controller, the controller is electrically connected to the first photodetector and the laser light generator; using the controller to drive the laser light generator to generate the light and perform a scanning procedure; and stopping the scanning procedure when the first photodetector detects the light generated by the laser light generator, and then performing a 3D object generating procedure in the working region by moving the laser light generator with a preset distance.

Abstract: A 3D object generating apparatus includes an optical-transparent, a laser light generating module, and a controller. The laser light generating module includes a light emitter for outputting a spot beam, a polygon mirror, a flat-field convergent lens, and a flat-field optical sensor. The polygon mirror directs the spot beam into a linear beam. The flat-field convergent lens is positioned between the laser light generating module and the optical-transparent component, and a flat-field scanning route is formed after the linear beam passed through the flat-field convergence lens. The flat-field optical sensor is positioned on the flat-field scanning route senses an optical power of the linear beam and generates a sensed signal. The controller is electrically connected to the laser light generating module and the flat-field optical sensor, and receives the sensed signal and calibrates the optical power of the spot beam based on the sensed signal.

Abstract: A 3D object generating apparatus includes an optical-transparent, a laser light generating module, and a controller. The laser light generating module includes a light emitter for outputting a spot beam, a polygon mirror, a flat-field convergent lens, and a flat-field optical sensor. The polygon mirror directs the spot beam into a linear beam. The flat-field convergent lens is positioned between the laser light generating module and the optical-transparent component, and a flat-field scanning route is formed after the linear beam passed through the flat-field convergence lens. The flat-field optical sensor is positioned on the flat-field scanning route senses an optical power of the linear beam and generates a sensed signal. The controller is electrically connected to the laser light generating module and the flat-field optical sensor, and receives the sensed signal and calibrates the optical power of the spot beam based on the sensed signal.

Abstract: A method for calibrating light is adapted to a 3D object generating apparatus including a housing, an optical-transparent component, and a laser light generator. The housing has an accommodating space and an opening communicating with the accommodating space. The optical transparent component is arranged on the opening, and the laser light generator is arranged within the accommodating space. The method includes following steps: providing a first photodetector and a controller, the controller is electrically connected to the first photodetector and the laser light generator; using the controller to drive the laser light generator to generate the light and perform a scanning procedure; and stopping scanning procedure when the first photodetector detecting the light generated by the laser light generator, and then performing a 3D object generating procedure in the working region by moving the laser light generator with a preset distance.