摘要
阐述了激光电离空气成像的理论及其可行性,描述了激光电离空气成像方式与装置,提出了激光电离空气成像可触控的理论方法和方式,认为只有用低功率飞秒激光电离空气成像,才能让人触碰;并提出基于检测激光回波相关参数,检测图像是否被触碰的检测方式,以及基于三角定位法向成像位置发射触碰检测信号的检测方式;提出带有触感的、可应用于实践的空间可触控成像的方式,即全息投影成像、雾屏成像与激光电离空气成像相结合,前两者用来形成基本图像,后者用来形成按钮图像并用于触控,并在触碰时有触感。
The theoretical structure for generating floating images from laser-ionized air is described and tested.A sensor mechanism by which users can interact with these images via touch is also proposed.The image-projection and touch feedback system uses a low-power femtosecond laser to ionize the air to create images and senses tactile interactions by detecting the laser echo.This method can be used for detecting a touch signal that changes the image position and for determining the location of a touch via triangulation.The proposed system can be applied in holographic projection imaging,fog-screen imaging,and laser imaging combined with ionized air.The holographic projection image or fog imaging screen is used to form a basic image,and the laser-ionized air is used to form images for touch interactions and buttons.
作者
黄振鑫
陈庆生
孙佳忆
Huang Zhenxin;Chen Qingsheng;Sun Jiayi(School of Mechanical Engineering,University of Shanghai for Science and Technology,Shanghai 200093,China;School of Microelectronics,Hehai University,Shanghai 200433,China;School of Optical-Electrical and Computer Engineering,University of Shanghai for Science and Technology,Shanghai 200093,China)
出处
《激光与光电子学进展》
CSCD
北大核心
2019年第3期163-171,共9页
Laser & Optoelectronics Progress
关键词
成像系统
激光聚焦
空气电离
可触控成像
空气投影
触感
imaging systems
laser focusing
air ionization
touch imaging
air projection
tactile
