A strange phenomenon occuring when viewing the moon through window screens

[YoungPhysicist]

TL;DR Summary

Light lines occur when the Moon is seen through window screens

I found an strange phenomenon while observing the moon. When the moon is seen through the window screens, strange light lines will appear:

Half open screen:

Closed screen:

Why is this happening? I saw similar things on street lights, car headlights, etc through screens.

 

[A.T.]

Have a look at the hole geometry of the screen.

 

[YoungPhysicist]

Have a look at the hole geometry of the screen.

Do you mean those lines are reflections of the tiny grids?

 

[confusedhome]

Yes, the reflections of the wires. But study the effect close and it will show you a representation of what a polarizer does with light waves. In the same way only at a far smaller spacing.