A straight edge diffraction pattern is not the same as a slit or multiple slit diffraction pattern. The spacing between fringes is not equal but gradually gets smaller the farther out you go as in the image below. I have come up with a simple way to calculate the exact locations of these dark and bright fringes and was wanting to compare my calculations to others. I am hoping someone has an equation or solution to this problem (one that I can understand). I have Googled this many times but the only equations I am finding seem way to complex for what is needed. For example if we have a monochromatic light source of $500nm$ wavelength directed toward a single sharp edge and on to an observation screen one meter away,
- what would the distances from the shadows edge to the 1st bright spot or any spot as far out as you want to calculate?
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