lens

名词 n. 动词 v.
中文释义

英文释义

名词 n.
  1. An object, usually made of glass, that focuses or defocuses the light that passes through it.
    — Not long ago, it was difficult to produce photographs of tiny creatures with every part in focus. That’s because the lenses that are excellent at magnifying tiny subjects produce a narrow depth of field.
  2. A device which focuses or defocuses other waves or radiation, such as microwave radiation, electron beams, sound waves (acoustic lenses), or explosions (explosive lenses).
  3. A convex shape bounded by two circular arcs, joined at their endpoints, the corresponding concave shape being a lune.
  4. The transparent crystalline structure in the eye.
    — The single-imaging optic of the mammalian eye offers some distinct visual advantages. Such lenses can take in photons from a wide range of angles, increasing light sensitivity. They also have high spatial resolution, resolving incoming images in minute detail.
  5. A body of rock, ice, or water shaped like a convex lens.
  6. A convex layer of fresh groundwater that floats above the denser saltwater, usually found on small coral or limestone islands and atolls.
  7. A construct used in statically-typed functional programming languages to access nested data structures.
  8. A way of looking, literally or figuratively, at something. broadly,figuratively
    — If "the public looks at the condition of America's children largely through a negative lens," worries Child Trends[…], "it may be more difficult to […] promote child well-being."
动词 v.
  1. To film, shoot. transitive
    — It’s set in an anonymous, upper-middle-class suburb, lensed in the generic gunmetal gray that will one day appear as dated as the fuzzy outlines of ’80s direct-to-video horror movies.
  2. To become thinner towards the edges.

词形变化

lenses plural lens obsolete,plural lentes plural,rare lense alternative lenses present,singular,third-person lensing participle,present lensed participle,past lensed past lense alternative

词汇关系

衍生词
achromatic lens Barlow lens best form lens burning lens capsule of lens circle contact lens circle lens close-up lens contact lens converging lens convex lens corrective lens corrugated lens crystalline lens delens digital single-lens reflex digital single-lens reflex camera dual-lens reflex echelon lens explosive lens eye lens field lens fish-eye lens fisheye lens Fresnel lens goniolens gravitational lens hyperlens immersion lens kit lens lensatic lens blank lens board lens brush lens cap lensectomy lenser lens flare lensfree lenshound lensless lenslet lenslike lens louse lensmaker lensmaking lensman lensmeter lensoid lensoidal lensometry lenswoman lenticel lenticular lenticule lentil lentoid long-focus lens long lens macro lens macrolens magnetic lens Mediterranean lens metalens microlens multiplying lens nanolens narrow-angle lens normal lens objective lens ocular lens pancake lens pebble lens Petzval lens prime lens semilens shoot the lens single lens reflex single-lens reflex spot lens standard lens sublens superlens telephotographic lens telephoto lens twin-lens reflex varifocal lens water lens wide-angle lens zoom lens zoom-lens reflex

词源

词源 1
Etymology tree
Latin lēns
Arabic عَدْسَة (ʕadsa)sl.
Medieval Latin lēnsbor.
English lens
Borrowed from Latin lēns (“lentil”), with Medieval Latin later taking on the sense of “lens”, a semantic loan from Arabic عَدْسَة (ʕadsa, “lentil; optic lens”); the similar shape is the common factor.
词源 2
Etymology tree
Latin lēns
Arabic عَدْسَة (ʕadsa)sl.
Medieval Latin lēnsbor.
English lens
Borrowed from Latin lēns (“lentil”), with Medieval Latin later taking on the sense of “lens”, a semantic loan from Arabic عَدْسَة (ʕadsa, “lentil; optic lens”); the similar shape is the common factor.
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