refracting surface
21Rigid gas permeable — lenses are rigid contact lenses made of oxygen permeable polymers. Initially developed in the late 1970s, and through the 1980s and 1990s, they were an improvement over prior hard lenses that restricted oxygen transmission to the eye. Rigid… …
22Moon ring — An example of a moon ring. A moon ring, also known as a winter halo, is a phenomenon that usually appears in conjunction with a full moon. There appears to be a whitish ring, approximately 10 to 20 times the size of the moon, surrounding the moon …
23angle of refraction — n the angle between a refracted ray and the normal drawn at the point of incidence to the interface at which refraction occurs * * * the angle between a refracted ray and a line perpendicular to the refracting surface; see refraction …
24focal line anterior — a line whose direction is perpendicular to the meridian of greatest curvature of a refracting surface …
25focal line posterior — a line whose direction is perpendicular to the meridian of least curvature of a refracting surface …
26angle of refraction — noun Physics the angle made by a refracted ray with a perpendicular to the refracting surface …
27aplanat — [ aplənat] noun Physics a reflecting or refracting surface which is free from spherical aberration. Derivatives aplanatic adjective Origin C19: coined in Ger. from Gk aplanētos, from a not + planan wander …
28преломляющая поверхность (сейсм.) — — [http://slovarionline.ru/anglo russkiy slovar neftegazovoy promyishlennosti/] Тематики нефтегазовая промышленность EN refracting surface …
29aplanatic — adj. (of a reflecting or refracting surface) free from spherical aberration. Etymology: Gk aplanetos free from error f. a not + planao wander …
30refraction — n. the process by which or the extent to which light is refracted. Phrases and idioms: angle of refraction the angle made by a refracted ray with the perpendicular to the refracting surface. Etymology: F reacutefraction or LL refractio (as… …
