本实验是利用两块空间频率相同的黑白光栅产生的莫尔条纹来测量长焦距透镜的焦距。
In this experiment, we use two gratings with the same frequency to generate Moire fringes and use them to measure the long focus length of lens.
大多数现代的液晶显示器通过发光两极管(LEDs)产生这种白光，并使其漫射到遮光栅栏后的屏幕专用漫射层上。
In the most modern LCDs this light is generated by light-emitting diodes (LEDs) and is then diffused in a special layer of the screen behind the shutters.
光学系统采用白光灯加准直镜，以平行光照射光栅面，通过光栅副产生莫尔条纹。
The optical system uses the fluorescent lamp with the collimation mirror, incident the grating surface by the parallel light, in order to produce the moiréfringe through the grating.
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