Block, SkipCaptcha, Automoderated users, Bots, edit
57,719
edits
Changes
Jump to navigation
Jump to search
Line 1:
Line 1: − + − http://www.usaarl.army.mil/hmdbook/cp_011.htm+
clean up
A combination of [[lenses]] which reduce [[chromatic aberration]]. Since different wavelengths respond differently to refraction a second lens can be positioned behind a primary lens to bring both ends of the visible light spectrum into focus in the same plane.
A combination of [[lenses]] which reduce [[chromatic aberration]]. Since different wavelengths respond differently to refraction a second lens can be positioned behind a primary lens to bring both ends of the visible light spectrum into focus in the same plane.<ref>http://www.usaarl.army.mil/hmdbook/cp_011.htm</ref>
==References==
==References==
{{reflist}}
[[Category:Aviation]]
[[Category:Aviation]]