camera obscura

American  

[ob-skyoor-uh] / ɒbˈskyʊər ə /

noun

1. a darkened boxlike device in which images of external objects, received through an aperture, as with a convex lens, are exhibited in their natural colors on a surface arranged to receive them: used for sketching, exhibition purposes, etc.

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camera obscura British  

/ ɒbˈskjʊərə /

noun

1. Sometimes shortened to: camera.  a darkened chamber or small building in which images of outside objects are projected onto a flat surface by a convex lens in an aperture

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Etymology

Origin of camera obscura

1660–70; < New Latin: dark chamber; see camera ¹, obscure

Example Sentences

The rear façade consists of three pavilions that Mr. Lacovara says were modeled on the camera obscura, used by Renaissance artists to achieve accurate perspective.

From The Wall Street Journal • Apr. 2, 2025

To a child, a box can be a doll’s house or a rocket ship, a camera obscura or a magic carpet sailing down the concrete slides in Golden Gate Park.

From Los Angeles Times • Aug. 3, 2023

The museum’s researchers, however, said the brushstrokes contained no evidence of a link to the camera obscura, a type of pinhole camera.

From New York Times • Oct. 7, 2022

He showed me the camera obscura he kept in his loft.

From The Guardian • Jan. 23, 2020

These rays cross each other at the aperture, forming equal angles on each side of it, and represent the tree inverted in the camera obscura.

From Conversations on Natural Philosophy, in which the Elements of that Science are Familiarly Explained by Jones, Thomas P.