0 a box, room, or device with a small hole that lets light through and shows an image on an opposite surface:
The tower itself is a local landmark and was once a camera obscura.
He turned one of the museum's galleries into a camera obscura by blocking the windows and leaving one pinhole.
Daguerre used the camera obscura to record topographical views of his dioramas.
He was the first to propose the idea of a portable camera obscura, which purportedly was to be used to help create artistic topographical drawings.
In 1777 the windmill burnt out in a storm, and the building was converted into the observatory, which houses a camera obscura.
He was thus the first to successfully project an entire image from outdoors onto a screen indoors with the camera obscura.
Nipce had been experimenting with ways to fix the images of a camera obscura since 1816.
Wollaston fitted it to an artist's aid camera obscura in 1812.
