单词light-pen
na.: 【电】光笔
（用于向计算机输入信息的）光笔:
a piece of equipment, shaped like a pen, that is sensitive to light and that can be used to pass information to a computer when it touches the screen
光笔；条码识读器:
a similar piece of equipment that is used for reading barcodes
〔电〕光笔
The light pen is a hand-held probe with three point light sources (LEDs) and a spherical touch stylus arranged in one line.
光笔是一种手持式触发测头，在笔体上装有三个与球形笔尖测头中心成一条直线的点光源（发光二极管）。
All these seem uninhibited absurdity of life is always light pen color, slowly and over time slowly grinding sand flow swab.
似乎这些都是荒诞不羁的，生活的笔彩总是轻描淡写，慢慢地又随着时间的沙流慢慢地磨拭。
Light pen: Light-sensitive stylus used to EDIT on a VDU (visual display unit).
光笔：在直观显示器上作编辑用的光敏尖笔。
features a magnetic-stripe credit card reader and a light pen to scan bar codes.
但它还有两项特色：可读磁条式信用卡的读卡机与扫描条码的光笔。
Through experiment, the feasibility of the Two-light pen-camera visual 3D coordinate measuring system is proved.
通过实验验证了双摄像机光笔式三维坐标视觉测量系统建立的可行性。
The geometric graphics drawn through devices(Tablet, Light pen, Digital pen etc) are recognized by the method based on graphics unit.
对通过手写板、光笔、数字笔等输入设备绘制的几何图形，采用基于图元表示法进行识别。
A novel 3D-coordinate measurement system using light-pen based on binocular stereoscopic vision system was presented.
提出了光笔式视觉坐标测量中被测特征点像面坐标的提取方法。
Self-calibration and Simulation of the Structure Parameters in a Light-pen Vision Measurement System
光笔视觉测量系统结构参数的自标定与仿真
Optimization Design of Light Pen for Use in Space Coordinate Measuring Systems Without Guideway
无导轨空间坐标测量系统的光笔优化设计
The Image Processing Method Based on Curve Fitting in Light Pen Vision Coordinates Measurement
光笔式视觉坐标测量中基于曲线拟合的图像处理方法