Medical Definition of Depth of focus
1.
The depth or thickness of the image space that is simultaneously in acceptable focus.
The range of distances between a lens and image plane (target in the video pickup device) for which the image formed by the lens at a given setting is clearly focused. With a high-numerical aperture microscope objective, the depth of field is very shallow, but the depth of focus can be quite deep and reach several millimetres.
(05 Aug 1998)
Lexicographical Neighbors of Depth Of Focus
Other Resources:
