Magnifying glass
device · 1250 · Middle Ages
A magnifying lens.
Inventor: Ibn al-Haytham.
What it is made of
- Lens — has part. A converging lens.
- Magnifier frame with handle — has part. A frame with a handle.
Principles and materials it uses
- Glass — is made of. Lenses were ground from glass.
- Refraction of light — uses. A magnifying glass enlarges through refraction.
History: what it evolved from and what it influenced
- Glasses — evolved into. Reading stones — magnifying lenses — preceded glasses.
- Microscope — evolved into. Magnification with glass.
What it is a kind of
- Lens — is a kind of. A single lens.