-
wavelengths are), and an
achromat made with
sufficiently low
dispersion gl**** can
yield significantly better correction than an
achromat made with more conventional...
- An
achromatic lens or
achromat is a lens that is
designed to
limit the
effects of
chromatic and
spherical aberration.
Achromatic lenses are
corrected to...
- This word was
first used by
Robert Blair to
characterize a
superior achromatism, and, subsequently, by many
writers to
denote freedom from spherical...
-
costly fluorite gl****es and to very
tight tolerances.
Photographic lens
Achromat Apochromat Herzberger, M., and N. McClure, The
design of superachromatic...
- The Chasman–Green lattice, also
known as a
double bend
achromat lattice (DBA lattice), is a
special periodic arrangement of
magnets designed by Renate...
-
Liquidus temperature sol–gel
technique Viscosity Vitrification Optics Achromat Dispersion Gradient-index
optics Hydrogen darkening Optical amplifier Optical...
-
Liquidus temperature sol–gel
technique Viscosity Vitrification Optics Achromat Dispersion Gradient-index
optics Hydrogen darkening Optical amplifier Optical...
- age.[citation needed] If the
light level during testing is optimized,
achromats may
achieve corrected visual acuity of 20/100 to 20/150 at
lower light...
- that the object-gl****es of
telescopes must
forever remain imperfect,
achromatism and
refraction being incompatible. This
inference was
proved by Dollond...
-
around the image. It can be
minimised by
using an
achromatic doublet (or
achromat) in
which two
materials with
differing dispersion are
bonded together to...
