The name 'camera obscura' comes from the Latin words meaning 'darkened room'. The Camera Obscura is an ancient optical device. In its most basic form it is, quite simply, a dark room with a small hole in one wall.
A camera obscura (Latin: "dark chamber") is an optical device that led to photography and the photographic camera. The device consists of a box or room with a hole in one side. The Camera Obscura is an ancient optical device. In its most basic form it is, quite simply, a dark room with a small hole in one wall.
The Camera Obscura is an ancient optical device. In its most basic form it is, quite simply, a dark room with a small hole in one wall. On the wall opposite the hole, an image is formed of whatever is outside. This image is upside-down (inverted) and back to front (laterally transposed).
The size of the hole has a great effect on the picture that is being projected. A small hole produces a sharp image, which is dim, while a larger hole produces a brighter picture which is less well focused.
The size of the hole has a great effect on the picture that is being projected. A small hole produces a sharp image, which is dim, while a larger hole produces a brighter picture which is less well focused.
Later on, in the 10th Century, the Arabian scholar Al Hassan used the camera obscura to demonstrate how light travels in straight lines. In the 13th Century, the camera obscura was used by astronomers to view the sun.