hand magnifier — лупа
magnifier spectacles — очки - лупа
n-power magnifier — лупа с n-кратным увеличением
forehead binocular magnifier — бинокулярная козырьковая лупа
English-Russian big medical dictionary. 2005.
Reflecting instrument — Reflecting instruments are those that use mirrors to enhance their ability to make measurements. In particular, the use of mirrors permits one to observe two objects simultaneously while measuring the angular distance between the objects. While… … Wikipedia
optics — /op tiks/, n. (used with a sing. v.) the branch of physical science that deals with the properties and phenomena of both visible and invisible light and with vision. [1605 15; < ML optica < Gk optiká, n. use of neut. pl. of OPTIKÓS; see OPTIC,… … Universalium
