object glass aperture

См. также в других словарях:

• Aperture — Ap er*ture (?; 135), n. [L. apertura, fr. aperire. See {Aperient}.] 1. The act of opening. [Obs.] [1913 Webster] 2. An opening; an open space; a gap, cleft, or chasm; a passage perforated; a hole; as, an aperture in a wall. [1913 Webster] An… …   The Collaborative International Dictionary of English

• Lens [object(ive) glass, relative] aperture — Относительное отверстие объектива …   Краткий толковый словарь по полиграфии

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• immersion — 1. The placing of a body under water or other liquid. 2. In microscopy, filling the space between the objective lens and the top of the cover glass with a fluid, such as water or oil, to reduce …   Medical dictionary

• Isaac Newton's early life and achievements — IsaacNewtonSegmentsThe following article is part of an in depth biography of Sir Isaac Newton, the English mathematician and scientist, author of the Principia .ChildhoodSir Isaac Newton was born on December 25, 1642 [ OS: 25 December 1642] in… …   Wikipedia

• Newtonian telescope — The Newtonian telescope is a type of reflecting telescope invented by the British scientist Sir Isaac Newton (1642–1727), using a concave primary mirror and a flat diagonal secondary mirror. Newton’s first reflecting telescope was completed in… …   Wikipedia

• Eyepiece — For the device for looking through a camera, see viewfinder. A collection of different types of eyepieces. An eyepiece, or ocular lens, is a type of lens that is attached to a variety of optical devices such as telescopes and microscopes. It is… …   Wikipedia

• Objective — In a microscope, the objective (also called the objective lens) is the lens nearest to the object being examined whereas the lens closest to the eye is termed the ocular (the eyepiece). The light microscope today is usually binocular (with one… …   Medical dictionary