光栅缺级对光盘彩色线的影响
Effect of grating missing orders on color lines of compact discs
刘然玉 1王拴 2曹峰 3陈晓彬 3陈书湄 3邓柏昌3
作者信息
- 1. 哈尔滨工业大学(深圳)电子与信息工程学院,广东 深圳 518055
- 2. 哈尔滨工业大学(深圳)实验与创新实践教育中心,广东 深圳 518055
- 3. 哈尔滨工业大学(深圳)理学院,广东 深圳 518055
- 折叠
摘要
根据光盘的结构,可将光盘等效为反射光栅,光入射到光盘上会产生干涉和衍射现象,最后通过反射进入观察者眼睛.受单缝衍射因子调制反射后的光强会发生缺级现象,进而对观察到的光的颜色产生影响.本文论述了光栅缺级现象对光盘彩色线颜色的影响,通过实验探究了观察者角度、光盘旋转角度和光盘自身结构等参量对彩色线的颜色变化影响.本文所涉及的实验对器材和场地要求较少,可以为大学物理实验教学的创新设计型项目或高校物理相关专业课程的课外延伸提供参考.
Abstract
Considering the structure of the compact disc as analogous to a reflection grating,the incident light undergoes phenomena of interference and diffraction,and is then reflected into the ob-server's eyes.The intensity of the reflected light is modulated by the single-slit diffraction factor,leading to missing order phenomena,which in turn affects the colors observed.The effect of missing order phenomena on the color of the compact disc's color lines was studied,and experiments were conducted to explore the variation such as the observer's angle,the rotational angle of the compact disc,and the intrinsic structure of the compact disc itself affected the color changes in the lines.The experiments involved in this paper required less equipment and experimental field,and could serve as a reference for innovative design projects in experiment teaching or extracurricular extensions of related physics courses in universities.
关键词
光盘/光栅缺级/光栅衍射/光强Key words
compact disc/grating missing order/grating diffraction/light intensity引用本文复制引用
出版年
2024
NETL
NSTL
万方数据