Mangin mirror
Espejo de Mangin
- Date
- 1874 · confidence high
- Place
- France
- Credited to
- Alphonse Mangin
- Field
- Communication
What it is
A Mangin mirror is a negative meniscus lens with the reflective surface on its rear side, acting as a curved mirror that reflects light without spherical aberration under certain conditions. It was invented in 1874 by French officer Alphonse Mangin as an improved reflector for search lights.
What it led to
- Improvement of military search lights
- Use in catadioptric telescopes and other optical instruments
- Basis for later optical designs combining lens and mirror