the name for the degree to which a converging lens will cause parallel light rays to be refracted. A high degree causes a focal point close to the lens, low degree is further away.

FOCUSING POWER: "The focusing power of a lens is measured in diopters."
Cite this page: N., Pam M.S., "FOCUSING POWER," in, May 11, 2013, (accessed September 24, 2020).