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apertures 中文解釋 wordnet sense Collocation Usage Collins Definition
Noun
/ˈapərˌCHər/,
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apertures, plural;
  1. An opening, hole, or gap
    • - the bell ropes passed through apertures in the ceiling
  2. A space through which light passes in an optical or photographic instrument, esp. the variable opening by which light enters a camera

  1. (aperture) a device that controls amount of light admitted
  2. (aperture) a natural opening in something
  3. (aperture) an man-made opening; usually small
  4. In optics, an aperture is a hole or an opening through which light travels. More specifically, the aperture of an optical system is the opening that determines the cone angle of a bundle of rays that come to a focus in the image plane. ...
  5. (Aperture (antenna)) As a receiver, antenna aperture can be visualized as the area of a circle constructed broadside to incoming radiation where all radiation passing within the circle is delivered by the antenna to a matched load. ...
  6. (Aperture (botany)) Apertures are very small spots on the walls of a pollen, where the wall is thinner and/or softer. For germination it is necessary that the pollen tube can reach out from the inner of the pollen and transport the chromosomes to the egg deep down in the pistil. ...
  7. (Aperture (computer memory)) In computing, an aperture is a portion of the address space which is persistently associated with a particular peripheral device or a memory unit. Apertures may reach external devices such as ROM or RAM chips, or internal memory on the CPU itself.
  8. (Aperture (magazine)) Aperture is a quarterly photography magazine and a book publisher based in New York, New York, USA. The magazine is published by Aperture Foundation, a non-profit organization devoted to fine art photography.
  9. (Aperture (mollusc)) The aperture is an opening in certain kinds of mollusc shells: it is the main opening of the shell, where part of the body of the animal emerges for locomotion, feeding, etc.
  10. (aperture) An opening; an open space; a gap, cleft, or chasm; a passage perforated; a hole; as, an aperture in a wall; Something which restricts the diameter of the light path through one plane in an optical system; The diameter of the aperture (in the sense above) which restricts the width of ...
  11. (apertured) Having an aperture (or a specified type of aperture)
  12. (Aperture) In optics, an aperture is a hole or an opening through which light is admitted. However when we speak of aperture and binoculars, aperture refers to the diameter of a binoculars' objective lenses and is measured in millimeters. ...
  13. (APERTURE) The light gathering area of a lens, controlled by the iris.
  14. (Aperture) Small opening. The dials of some watches (in French: montres à guichet) have apertures in which certain indications are provided (e.g. the date, the hour, etc).
  15. (Aperture) An opening or space between bones or within a bone.
  16. (Aperture) In photography, lens opening or lens stops expressed as an f/no. Such as f/22.
  17. (Aperture) A recyclable metal block containing a hole through which the radiation (photon or proton) beam passes. Each portal for the patient requires a custom-made aperture. The lateral shape of the hole is the approximate shape of the target being treated by the beam. ...
  18. (Aperture) The size of the binoculars' objective lenses. The second number represented in the numbers describing a set of binoculars, measured in millimeters. Example: In the Steiner 8x22 Predator Binoculars, 22 would represent the aperture.
  19. Effective Aperture: The apparent diameter of a lens viewed from the position of the object against a diffusely illuminated background, such as a sky. ...
  20. (Aperture) An opening in the dial of the watch that displays various information such as the date.
  21. (APERTURE) A circle-shaped opening in a lens (a hole, really) through which light passes to strike the image sensor or the film. ...
  22. (Aperture) An opening in a shield through which electromagnetic energy passes.
  23. (aperture) hole, gap, slit, or other opening
  24. (Aperture) An opening; in solar collectors, the area through which solar radiation is admitted and directed to the absorber.
  25. (Aperture) opening at the front end of gastropod shell and a tusk shell.