Periscope lens

Schematic of a conventional and a periscope zoom lens
A smartphone with a 5x optical zoom periscope lens camera, recognizable by the rectangular shape of its lens

A periscope lens, sometimes called a folded lens, is a mechanical assembly of lens elements that uses a prism or mirror to redirect the light through the lenses with a 90° angle to the optical axis, as in a periscope.[1][2][3][4]

  1. ^ Samuelson, David (2014-03-26). Hands-on Manual for Cinematographers. CRC Press. p. 208. ISBN 978-1-136-04474-8.
  2. ^ "What is the Difference Between a Periscope and Telephoto Camera?". XDA Developers. 2020-11-27. Retrieved 2023-07-20.
  3. ^ Peter. "Counterclockwise: periscope cameras are old news, optical zoom dates back to 2004". GSMArena.com. Retrieved 2023-07-20.
  4. ^ "Galaxy S20 Ultra Shows Off Samsung's Prowess in Mobile Photography". Counterpoint Research. 2020-04-10. Retrieved 2023-07-31.