光圈

guāngquān
  1. aperture
  2. diaphragm
  3. halo
  4. aureole

CEDICT

  1. (photography) aperture
  2. aperture

Wiktionary

装在摄影机、照相机镜头的内部，可改变进光孔大小，以控制光线进入镜头的多寡，并有调节景深、减少光差等作用。有彩虹式、光孔式二种。

重編國語辭典

Entry Composition

1 光 guāng
  1. bright; shiny
  2. only; merely
  3. used up; finished
  4. to leave (a part of the body) uncovered

classifier: 道
2 圈 quān
  1. classifier for loops, orbits, laps of race etc
  2. to surround; to circle

classifier: 個

Related entries

孔穴 kǒngxué
  1. aperture
  2. hole
  3. cavity
隙缝 xìfèng aperture
横膈 hénggé diaphragm
横膈膜 hénggémó diaphragm (anatomy)
横隔膜 hénggémó diaphragm (anatomy)
膈 gé diaphragm (anatomy)
膈肌 géjī diaphragm (anatomy)
膈膜 gémó diaphragm (anatomy)
隔膜 gémó
  1. diaphragm (anatomy)
  2. distant (socially aloof)
  3. divided by lack of mutual comprehension
  4. nonexpert
光晕 guāngyùn
  1. halo
  2. (photography) halation
日月晕 rìyuèyùn
  1. halo
  2. ring of light around the sun or moon
圆光 yuánguāng
  1. radiance emanating from the head
  2. halo
晕 yùn
  1. dizzy
  2. halo
  3. ring around moon or sun
她几乎喝晕了。

She almost passed out.

Source: Tatoeba

华盖 huágài
  1. imperial canopy (e.g. domed umbrella-like roof over carriage)
  2. aureole
  3. halo