Effect of grating missing orders on color lines of compact discs
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.
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