A specially shaped camera lens and processing method to ensure images are always in focus has been developed.

Physicist Dr Andy Harvey said it was a “simple system with a simple lens” which uses an optical encoder so that no information in images is lost.

Developed primarily for military night vision cameras, the technology could find its way into camera phones.

The quality of picture phone images is fast improving, with more models now capable of 1.3 mega pixels per image.

Dr Harvey, an optics expert from Heriot Watt University and chair of the Optics and Photonics Division of the Institute of Physics (IOP), was presenting the research at the IOP’s Photon 04 optics conference.

More here.