See Also: aberration, spherical(medicine)
spherical aberration(medicine)
Herbal medicine (botanical medicine, herbology, phytomedicine)(health)
Spherical(medicine)
spherical(dictionary)
spherical(dictionary)
spherical recess(medicine)
spherical nucleus(medicine)
spherical amalgam(medicine)
spherical lens(medicine)

spherical aberration (medicine)


spherical aberration
<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.