【作者】 王瑞； 程琦； 秦建敏；

【Author】 Wang Rui~(1,2) Cheng Qi~(1,2) Qin Jianmin~1 (1.Taiyuan University of Technology Taiyuan 030024 China;2.Shanxi Polytechnic College Taiyuan 030006 China)

【机构】 太原理工大学测控研究所； 山西职业技术学院电子信息工程系；

【摘要】 激光显示技术是近年来一项新兴的显示技术,本设计基于"李萨如图"形成原理,以AT89S52单片机为核心,输出两路数字信号,经数模转换和放大后,由两个低音扬声器分别控制行、场两块振镜做不同频率的简谐运动。这时,将一束激光照射在振镜上,反射激光束就可通过机械扫描方法偏转扫描到显示屏或墙体上,显示出不同的图形和符号,由于人眼的视觉惰性,我们就会看到一幅完整的图形。更多还原

【Abstract】 Laser display technology is an emerging display technology in recent years.Based on the form principle of "Lissajous Figure",this design,which takes AT89S52 microcontroller as core,outputs two digital signals,and then these two signals are processed by DAC and amplification.Signals after processing are controlled by two subwoofers to do simple harmonic motion of different frequencies with line & field vibrating mirrors,respectively.At this time,irradiate laser beam in the vibrating mirror and the reflected laser beam can scan the display screen or wall by mechanical scanning method to show different graphics and symbols.Because of human eye’s visual inertia,we will see a complete figure.更多还原