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camera obscura

Line breaks: cam¦era ob|scura
Pronunciation: /ɒbsˈkjʊərə
 
/

Definition of camera obscura in English:

noun

1A darkened box with a convex lens or aperture for projecting the image of an external object on to a screen inside, a forerunner of the modern camera.
Example sentences
  • He was the first to propose adding a convex lens to the camera obscura.
  • My explanation for this very curious result is that Vermeer had a camera obscura with a lens at the painting's viewpoint.
  • In the camera obscura the image is always upside-down.
1.1A small round building with a rotating angled mirror at the apex of the roof, projecting an image of the landscape on to a horizontal surface inside.
Example sentences
  • But the glistening object on the town's market place on Saturday morning turned out to be a mirrored camera obscura.
  • The party also had a camera obscura to produce topographic images, although they seem never to have used it.
  • We are looking to put in a camera obscura or a viewing tower in the church steeple as a tourist attraction to complement the Botanic Gardens across the road.

Origin

early 18th century: from Latin, 'dark chamber'.

Definition of camera obscura in:

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