light pen

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）。

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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

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Study on No Guide 3D Coordinate Measurement Technology Using Light Pen

无导轨三坐标测量技术的研究

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Graphics tablet: Calibrated tablet on which, using light pen, an operator brings together components of a design and fixes them electronically in their correct positions according to the required layout.

图形输入板：分度数的图板，操作员依照设计所需，在它上面用光笔把各设计单元作电子排放。

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The vision detection technology is used in the light pen CMM. The surface of the object is replaced by the probe to be the target. By analyzing the change of probe on the camera, the spatial coordinates of the point to be measured can be determined.

光笔式三坐标测量机引入视觉坐标测量技术，使视觉检测的目标从被测物体表面转移到了目标测头上来，通过分析目标测头在像面上的变化情况确定被测点的空间坐标。

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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。

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Design on Structure of Light Pen in No Guide 3D-coordinate Measuring System Utilizing Redundancy Technique

光笔式无导轨三坐标测量系统中的光笔冗余优化设计

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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

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Low baud light pen

低波特光笔-1200bps

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The error of light pen system is less than 0.1 mm when the coordinate error of point source is(± 0.1 mm.)

点光源坐标误差为±0.1mm时，光笔系统误差≤0.1mm。

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The mathematical model for the coordinates of the probe tip center under the light pen coordinate system has been built.

建立了测头中心在光笔坐标系中的坐标值的估算模型。

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3/ 4 [ G] redundancy technique is applied in the design of the light pen system for the realization of self-calibration and self reparation when one light source is deficit for any reason.

采用工作冗余方式3/4[G]进行光笔系统冗余设计，使光笔系统具有一个冗余度以实现系统自标定和挡光自恢复。

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Input devices include keyboards and pointing devices such as mouse, joystick , track ball, or light pen.

输入设备包括键盘和点击设备如鼠标, 操纵杆, 跟踪球或光笔.

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Recently, all the light pen CMM are pc-based systems, their image processing program and arithmetic program are all run in the computer.

目前，市场上的光笔三坐标测量机都是PC-Based系统，其图像处理程序和算法程序均在计算机中完成，相机只是负责采集图像和对图像进行简单的处理后上传给计算机。

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When measuring, the probe of the light pen contacts the measured point, the CCD camera takes the image of LEDs on the light pen, and the 3D coordinates of the measured point are obtained by computing the coordinates of LEDs in the image plane.

测量时，使笔尖测头接触被测物体表面，摄像机摄取笔体上3个发光二极管的像，由3个发光二极管的像面坐标就可计算出被测点的三维坐标。

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Research on the Technology and System of Portable Light Pen Coordinate Measurement System

便携式光笔三维坐标测量技术与系统研究

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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。

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The design scheme for display operating, the application of memory technology, the design ideas for CRT drive circuit and light pen input system have been given.

给出了系统设计方案，其存储器技术的应用以及CRT驱动电路与光笔输入系统设计思想。

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The measuring precision of the light pen portable coordinate measuring system have been compared with the Brown-Sharp coordinate measuring machine. This comparison proved the correctness of the mathematical model of the light pen portable coordinate measuring system.

光笔式便携三坐标测量系统的测量精度与Brown-Sharp精密三坐标测量机的精度比对实验证明了前者测量的正确性。

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Then the light Pen control of TV tracking window, including the principles of light pen structure, positioning, circuit structure and operation principle of tracking window position controled by light pen and some cautions in the use of light pen are described.

然后叙述数字式电视跟踪窗的光笔控制，其中包括光笔的结构和定位原理，光笔控制跟踪窗位置的电路结构及工作原理，使用光笔中要注意的问题。

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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。

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A system of a specially designed terminal and light pen.

一种由特殊构造的终端和一支光笔组成的系统.

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The adjustable light pen is designed to realize the function that the on/ off status and brightness of LEDs on the light pen are adjustable. 3.

针对传统光笔式三坐标测量系统中光笔的缺陷，设计出了可调光笔，实现了光笔上发光二极管的开关状态和亮度值可调功能。

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Light pen status data buffer

光笔状态数据缓冲区

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The structures of the light pen and the recorder are described briefly.

简要说明了光笔及记录器的基本结构。

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A brief introduction about aeromagnetic profile fitting program with modifiable model using simulation light pen

拟光笔修改模型的航磁剖面正演拟合程序简介

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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。

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The main work includes the following aspects: 1. The current light pen coordinate measuring technology and intelligent camera are introduced. 2.

具体工作如下：1、介绍了当前光笔式三坐标测量技术和智能相机技术的发展状况。

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A TV Tracking Window Controled by Light Pen

光笔控制的电视跟踪窗

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Apple soft light pen& a program for input organic molecular structure

APPLE软光笔&有机结构式输入程序

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