What are the types of periscopes?

Periscopes primarily come in two types: the traditional optical periscope and the modern digital or electronic periscope. The traditional periscope uses mirrors or prisms to allow the user to see over obstacles, commonly used in submarines. Digital periscopes incorporate cameras and electronic displays, enabling enhanced image capture and transmission. Additionally, there are specialized periscopes, like those used in military applications or for specific scientific purposes, which may have unique features based on their intended use.