Camera obscura
device · 400 BC · Ancient world
A dark chamber with a hole that forms an inverted image.
What it is made of
- Dark room box — has part. A darkened room or box.
- Pinhole — has part. It projects an inverted image.
- Projection screen — has part. The surface on which the image is seen.
Principles and materials it uses
- Refraction of light — uses. A lens makes the image sharper; the camera obscura itself works because light travels in straight lines.
History: what it evolved from and what it influenced
- Camera — evolved into. A camera is a camera obscura with a light-sensitive layer.