afocal
- Adjective. (optics, of an imaging system) Not focused.
- Adjective. (optics, of a lens) Neither concave or convex (focal point at infinity).
This is an unmodified, but possibly outdated, definition from Wiktionary and used here under the Creative Commons license. Wiktionary is a great resource. If you like it too, please donate to Wikimedia.
This entry was last updated on RefTopia from its source on 3/20/2012.