Optics.
a prism that inverts a beam of light, often used in a telescope to produce an erect image. Also called erecting prism, reversing prism, rotating prism .
[ named after Heinrich W. Dove (1803-79), German physicist ]
Optics.
a prism that inverts a beam of light, often used in a telescope to produce an erect image. Also called erecting prism, reversing prism, rotating prism .
[ named after Heinrich W. Dove (1803-79), German physicist ]
Random House Webster's Unabridged English dictionary. Полный английский словарь Вебстер - Random House . 2012