https://imgur.com/a/EJEp1P8
I understand that light acts as a wave and there is interference effects going on here but that’s about as far as my understanding goes. The situation confuses me even more considering there is only one light source.
In: 4
What a nice video!
The phenomenon is well-known in the context of the [Siemens star](https://en.wikipedia.org/wiki/Siemens_star):
> Under optical blur from defocus, a Siemens star (like any periodic pattern) gives rise to the phenomenon of spurious resolution above the resolution limit, i.e. toward the center of the Siemens star. (Spurious resolution appears similar to aliasing, but it is a purely optical phenomenon, so it occurs without need of pixels.) This results in inverted polarity of the stripe pattern: **black stripes appear in the place of white stripes and vice versa** (and further polarity inversions occur further inward).
Here it’s not the resolution of the camera but the sharpness of the shadows.
> I understand that light acts as a wave and there is interference effects going on here
So definitely not light wave interference but “pattern interference”, if I may coin that expression.
Latest Answers