光笔 - 百度百科
光笔是计算机的一种 输入设备，结构简单、价格低廉、响应速度快、操作简便，常用于交互式计算机图形系统中。 在 图形系统 中光笔将人的干预、显示器和计算机三者有机地结合起来，构成人机通信系统。 利用光笔能直接在显示屏幕上对所显示的图形进行选择或修改。 光笔的外形象一支 圆珠笔，由笔体、透镜组、 光导纤维 、开关和导线等组成。 工作时,光笔接受显示屏幕上的光，并将其变成电信号经放大、整形，产生脉冲信号，输入计算机，向计算机发出中断请求。 储存在 …
Light pen - Wikipedia
A light pen is a computer input device in the form of a light-sensitive wand used in conjunction with a computer's cathode-ray tube (CRT) display. It allows the user to point to displayed objects or draw on the screen in a similar way to a touchscreen but with greater positional accuracy.
What is a Light Pen? - GeeksforGeeks
2023年10月18日 · A light pen is a type of pointing input device that detects light and is frequently used to select or alter text or data on a screen. These devices, when used with a CRT (cathode ray tube) monitor, were an early method of highlighting and modifying data on the screen.
What is a Light Pen? - Definition from Techopedia
2016年7月26日 · A light pen is a light-sensitive computer input device, basically a stylus, that is used to select text, draw pictures and interact with user interface elements on a computer screen or monitor.
What is a Light Pen? - Computer Hope
2017年10月11日 · A light pen is a light-sensitive pointing input device commonly used to select or otherwise modify text or data on a screen. Used with a CRT (Cathode Ray Tube) monitor, these devices were an early form of manipulating and highlighting data on the screen.
What is Light Pen | Definition & Uses of Light Pen
2023年6月24日 · Definition of Light pen -: Light Pen, which is similar to the Normal Pen, is a pointing input device that is used to select the menu or picture display on the screen of a mobile or computer.
Amazon.com: Light Pen
WORKPRO LED Pen Light, Aluminum Pen Flashlights, Pocket Flashlight with Clip for Inspection, Emergency, Everyday, 8AAA Batteries Include, Gray(4-Pack)
Light Pen – Definition & Detailed Explanation - PCPartsGeek
2024年6月2日 · What is a Light Pen? A light pen is a pointing device that resembles a pen and is used to interact with a computer screen or monitor. It is a handheld device that emits light and is equipped with a light-sensitive detector at the tip. The light pen is used to select objects on the screen by pointing directly at them.
Light Pen – The Computer Mouse - Jeffrey W. McClurken
2017年4月4日 · “penlike input device that was used with cathode-ray tube display to point at items on the screen or to draw new items or modify existing ones. The light pen had a photosensor at the tip that responded to the peak illumination that occurred when the cathode-ray tube scanning spot passed its point of focus.
Light Pen Advantages And Disadvantages - Insightvity
2023年7月28日 · Light pens are designed to mimic the experience of using a traditional pen or pencil, making them incredibly user-friendly. The familiar grip and movement of a light pen create a seamless transition from traditional writing to digital input.