What is for this Military Lens

[Mustafa Umut Sarac]

I found an acrylic lens tooling company website and there was a missile lens. It was conic shaped, 25 inches long , 4 inches diameter parabolic single piece lens.
It was like a corn or conical missile nose.

How does it work , does it look only front or does it work a very long fisheye.

I am sorry , I lost the site .

What kind of a image does it produce , is there a clear visual image on the focus , or does it corrected by computer.

Thank you ,

Umut

[Maris]

Could be the front element of a Peri Appolar style military lens.

[Mustafa Umut Sarac]

Maris ;

Yes , You are right. Its a fisheye lens.

Thank you ,

Umut