激光与光电子学进展, 2019, 56 (3): 031101, 网络出版: 2019-07-31
激光电离空气可触控成像方法研究 下载: 1553次
Touch-Imaging Method Employing Laser-Ionized Air
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
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。
Abstract
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.
黄振鑫, 陈庆生, 孙佳忆. 激光电离空气可触控成像方法研究[J]. 激光与光电子学进展, 2019, 56(3): 031101. Zhenxin Huang, Qingsheng Chen, Jiayi Sun. Touch-Imaging Method Employing Laser-Ionized Air[J]. Laser & Optoelectronics Progress, 2019, 56(3): 031101.