Camera = Latin for “room”Obscura = Latin for “dark”
Camera obscura occurs a darkened enclosure having an aperture usually provided with a lens through which light from external objects enters to form an image of the objects on the opposite surface. In other words when an image is shown inverted on a surface, made by closing off all resources of light, aside from one small pinhole. This hole will allow the rays to bounce around and invert the image.