Glasses
device · 1286 · Middle Ages
Lenses for correcting vision (Italy).
What it is made of
- Lens — has part. Lenses.
- Spectacle frame — has part. A frame.
Principles and materials it uses
- Refraction of light — uses. Correction by refraction.
History: what it evolved from and what it influenced
- Sunglasses — evolved into. Glasses with dark lenses.
- Contact lens — evolved into. A lens right on the eye.
- Telescope — evolved into. The first telescopes were assembled by spectacle makers.
- Microscope — evolved into. Spectacle makers assembled the first microscopes.
- Magnifying glass — evolved from. Reading stones — magnifying lenses — preceded glasses.
- AR glasses — evolved into. Glasses with a display.
Things built in a similar way
- Laser surgery — works like. Laser vision correction solves the same problem as glasses — it changes refraction, but in the cornea itself.