useful magnification

См. также в других словарях:

• Stereo microscope — Modern stereomicroscope opti …   Wikipedia

• microbiology — microbiological /muy kroh buy euh loj i keuhl/, microbiologic, adj. microbiologically, adv. microbiologist, n. /muy kroh buy ol euh jee/, n. the branch of biology dealing with the structure, function, uses, and modes of existence of microscopic… …   Universalium

• Microscopy — is the technical field of using microscopes to view samples and objects that cannot be seen with the unaided eye (objects that are not within the resolution range of the normal eye). There are three well known branches of microscopy, optical,… …   Wikipedia

• Maximum resolving power and depth of focus for a visual microscope — ▪ Table Maximum resolving power and depth of focus for a visual microscope objective focal length (mm) numerical aperture (N.A.) maximum useful magnification in compound microscope maximum resolution on object (mm) objective depth of focus (mm)… …   Universalium

• полезное увеличение — Наименьшее увеличение оптической системы, при котором разрешающая сила объектива может быть полностью использована приемником излучения. [Сборник рекомендуемых терминов. Выпуск 79. Физическая оптика. Академия наук СССР. Комитет научно технической …   Справочник технического переводчика

• microscope — /muy kreuh skohp /, n. 1. an optical instrument having a magnifying lens or a combination of lenses for inspecting objects too small to be seen or too small to be seen distinctly and in detail by the unaided eye. 2. (cap.) Astron. the… …   Universalium

• 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

• Scanning electron microscope — These pollen grains taken on an SEM show the characteristic depth of field of SEM micrographs …   Wikipedia

• Depth of field — The area within the depth of field appears sharp, while the areas in front of and beyond the depth of field appear blurry …   Wikipedia

• Telescopic sight — Scope redirects here. For other uses, see Scope (disambiguation). View through a 4x rifle scope. A telescopic sight, commonly called a scope, is a sighting device that is based on an optical refracting telescope. They are equipped with some form… …   Wikipedia

• Circle of confusion — For the closely related topic in microscopy, see Point spread function. In optics, a circle of confusion is an optical spot caused by a cone of light rays from a lens not coming to a perfect focus when imaging a point source. It is also known as… …   Wikipedia