spherical aberrationmedical dictionary

<microscopy> A lens defect in which image forming rays passing through the outer zones of the lens focus at a distance from the principal plane, different from that of the rays passing through the centre of the lens.

The aberration caused by (near-paraxial) monochromatic light rays or electron beams passing through different radii of a lens not coming to the same focus.

(05 Aug 1998)

sphere, spheresthesia, spheric, spherical < Prev | Next > spherical amalgam, spherical form of occlusion

Bookmark with: icon icon icon icon iconword visualiser Go and visit our forums Community Forums