Tsinghua University

National Sun Yat-sen University of Kaohsiung

Yuan-Yao Lin

Yen-Yin Lin

An-Chung Chiang

Ching-Huei Wu

Yu-Chieh Lin

Shou-Tai Lin

Shi-Wei Zhu

Mang-Shiang Lee

A portable surface finishing device based on coherent light source includes a cover, a laser source, an optical calibrating module and a laser scanning module. The cover includes a beam output opening. The laser source is disposed in the cover, and is for providing a laser beam. The optical calibrating module is disposed in the cover, and the laser beam passes through the optical calibrating module. The laser scanning module is disposed in the cover, and the laser beam from the optical calibrating module passes through the laser scanning module so as to linearly output on a target surface. The laser scanning module includes a multifaceted reflective structure, a rotation driving mechanism and an F-theta lens.

Portable surface finishing device based on coherent light source

A vortex laser generation device in a degenerate cavity with a spiral phase element and a vortex laser generation method are provided. The vortex laser generation device has a degenerate cavity, and the degenerate cavity has a resonator mirror, a gain medium, an optical element, and an output coupler. The off-axis beams are formed in multiple pass transverse modes to resonate by disposing an optical element in the degenerate cavity, so that a vortex laser with orbital angular momentum can be generated.

Vortex laser generation device in degenerate cavity with spiral phase element and vortex laser generation method

A laser-optical position detecting module with a laser as a light source is disclosed, which includes a laser mode conversing assembly, having a laser source capable of emitting a time-modulated laser beam; a laser mode conversing unit, used to expand the time-modulated laser beam to a two-dimension sensing plane; a drive control unit, adopted for driving the laser source to emit the time-modulated laser beam; and a detector matrix. The laser mode conversing unit has a phase delay device and a passive optical device capable of reflecting the light; so that, through the laser mode conversing unit, the laser-optical position detecting module can expand the light emitted by the laser source to the two-dimension sensing plane without using any other mechanical scanning.

Laser-optical position detecting module

Growing community of inventors

Kaohsiung, Taiwan

Yuan-Yao Lin