A light pen

美 [ə laɪt pen]英 [ə laɪt pen]

A light pen

1

The system mainly consists of a light pen , a CCD camera , a set of special calibration accessories and a image card built in computer installed measuring software .

系统主要由一支光笔、一架摄像机、专用标定附件和一台装有图像采集卡和测量软件的电脑所组成。
2

In computer graphics , an input device used to specify a particular display element or segment . Example : a light pen .

在计算机图形学中，为标识某个具体显示单元或显示段所用的一种输入设备，例如光笔。
3

After a comprehensive review on the indoors and overseas current situation and developing tendency of portable 3D coordinate vision measurement system , a single camera 3D coordinate vision measurement system using a light pen has been designed and set up .

在对国内外便携式视觉坐标测量系统发展现状和趋势全面分析的基础上，设计组建了光笔式单摄像机三维坐标视觉测量系统。