Diffraction grating
part · 1785 · Industrial Revolution
Splitting light into a spectrum with fine lines (Fraunhofer).
Principles and materials it uses
- Wave interference — uses. Interference.
- Glass — is made of. The grating is ruled on glass.
Where it is used
- Spectroscope — is part of. A grating instead of a prism.
Things built in a similar way
- Optical disc (CD/DVD) — works like. The tracks of a CD split light into a rainbow.