Dictionary » P » Principal plane

Principal plane

principal plane

(Science: microscopy) A plane normal to the principal axis of a lens, passing through a principal point.

In geometrical construction of ray diagrams through a perfect lens, the single plane that can be considered (disregarding the refraction of the rays at each optical interface) to convert paraxial rays into rays converging onto the rear focal point. For thin symmetrical lenses, there is one principal plane that bisects the lens. For thick or complex lenses, there is a principal plane for the paraxial ray to the left, and another for the paraxial ray to the right, of the lens.

Please contribute to this project, if you have more information about this term feel free to edit this page

Results from our forum

Re: Important unknown nanotech within humans

... Eldor were on their way back to Israel via Switzerland when their plane came down in dense forest three kilometres short of the landing field. ... the world’s top experts on viruses and infectious illnesses who was the principal author of a highly publicized 1992 report by the National Academy ...

See entire post
by vincio
Mon Feb 16, 2009 2:36 am
Forum: Molecular Biology
Topic: Important unknown nanotech within humans
Replies: 32
Views: 175684

This page was last modified 21:16, 3 October 2005. This page has been accessed 1,307 times. 
What links here | Related changes | Permanent link