51Թ

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pinhole camera

noun

  1. a simple camera in which an aperture provided by a pinhole in an opaque diaphragm is used in place of a lens.


pinhole camera

noun

  1. a camera with a pinhole as an aperture instead of a lens
“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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51Թ History and Origins

Origin of pinhole camera1

First recorded in 1890–95
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Example Sentences

Examples have not been reviewed.

If you don't have access to eclipse glasses, you can create a simple pinhole camera with just two sheets of cardboard or even use a colander to project the Sun's image safely onto the ground.

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I walked over to the Oclipsinator, a large pinhole camera that projected the eclipse onto a white card.

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“The sun will be a little bit brighter, but you shouldn’t ever look at it except during totality without either approved eclipse glasses or in the correct pinhole camera,” Christian said.

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Another way to monitor the eclipse’s progression is through a pinhole camera, which can be made by poking a hole in a piece of aluminum foil or paper with a safety pin, paper clip or pencil, and projecting the image of the sun onto the ground.

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If you cannot get one, make a pinhole camera and project the Sun's disk onto paper or another surface.

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