Wave optics experimental slit which improves the precision

摘要

PURPOSE: A wave optics experimental slit is provided to manufacture a slit of a uniform width and interval to accurately recognize the location and the strength of the diffraction and the interference. CONSTITUTION: A slit is drawn on a monitor with a line or a circle by using a computer and a program. A print film which does not pass the light is introduced into an output device and is exposed by a laser light for a predetermined period of time, and the slit is positively photographed. Then, infrared rays are irradiated by an infrared lamp, and is converted to negative.