# How do I determine the size of the image needed to reflect onto a cylinder (see Q for better description)?

I plan to take a large disc shaped screen and then reflect that image onto a cylinder to create a holographic effect.

Right now this is just a concept but I am wondering if this is plausible and what size the disk would need to be to create an image to cover the cylinder.

If a formula could be provided that would be best or just a general explanation of how to find a formula.

Right now this is just a concept but I am wondering if this is plausible and what size the disk would need to be to create an image to cover the cylinder.

If a formula could be provided that would be best or just a general explanation of how to find a formula.

active| newest | oldestI don't see how to make this into a 3D display, but that may just be because I'm missing something.

also I plan to have a clear cylinder that will let you see the other side

as for the specifics this is just a concept and I probably wont build this until I get older