FRESNEL LENS


Meaning of FRESNEL LENS in English

[ freɪ'nɛl ]

■ noun Photography a flat lens made of a number of concentric rings, to reduce spherical aberration.

Origin

C19: named after the French physicist and civil engineer Augustin J. Fresnel .

Concise Oxford English vocab.      Сжатый оксфордский словарь английского языка.