aperture stop diameter


aperture stop diameter
диаметр действующей апертуры

Англо-український і українсько-англійський словник з аналітичної хімії. — Севастополь: «Вебер». . 2002.

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  • Aperture — For other uses, see Aperture (disambiguation). f stops demonstrated on a lens …   Wikipedia

  • aperture — apertural /ap euhr choor euhl/, adj. apertured, adj. /ap euhr cheuhr/, n. 1. an opening, as a hole, slit, crack, gap, etc. 2. Also called aperture stop. Optics. an opening, usually circular, that limits the quantity of light that can enter an… …   Universalium

  • stop —    a unit of relative exposure used in photography. In optics, a stop is a ring shaped baffle or shield used to reduce the aperture (the diameter of the opening) of a lens. In photography, the amount of light used to record the image can be… …   Dictionary of units of measurement

  • stop — verb (stops, stopping, stopped) 1》 come or cause to come to an end.     ↘discontinue an action, practice, or habit. 2》 prevent from happening or from doing something.     ↘instruct a bank to withhold payment on (a cheque).     ↘refuse to supply… …   English new terms dictionary

  • Stop — The word stop has several possible meanings in the English language, but most commonly means to cease moving.Additionally, stop can refer to:* STOP Programme (An acronym for Straight Thinking On Probation ) In some jurisdictions, offenders of… …   Wikipedia

  • stop — v. & n. v. (stopped, stopping) 1 tr. a put an end to (motion etc.); completely check the progress or motion or operation of. b effectively hinder or prevent (stopped them playing so loudly). c discontinue (an action or sequence of actions)… …   Useful english dictionary

  • aperture — 1. An inlet or entrance to a cavity or channel. in anatomy, an open gap or hole. SEE ALSO: fossa, ostium, orifice, pore. 2. The diameter of the objective of a microscope. SYN …   Medical dictionary

  • aperture — noun Etymology: Middle English, from Latin apertura, from apertus, past participle of aperire to open Date: 15th century 1. an opening or open space ; hole 2. a. the opening in a photographic lens that admits the light b …   New Collegiate Dictionary

  • f/stop —    In photography, the focal length of a camera divided by the diameter of its aperture. Knowing the f/stop, a lightmeter can measure the light on the subject, and calculate the exposure time …   Glossary of Art Terms

  • 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

  • F-number — In optics, the f number (sometimes called focal ratio, f ratio, or relative aperture [Smith, Warren Modern Lens Design 2005 McGraw Hill] ) of an optical system expresses the diameter of the entrance pupil in terms of the focal length of the lens; …   Wikipedia