I'm not sure that I understand what you want to accomplish with your project. Do you want to make a lens or camera with a 360 degree field of view? Or are you interested in circular images? Could you post more information about your project?
I hope this helps. Please ask again if you have more questions.
Thank you for answering to my query,
I want to make a model in which you can make an ordinary peephole in such a way you can turn it any side and not limit your vison-area to a circular amount of space.
One idea that comes to mind is to mount a small video camera on a swivel. The swivel could be motorized or manually operated. The camera could be moved to view in any direction permitted by the swivel mechanism.
I hope this helps. Please ask again if you have more questions.