Basic categories of dual-contour reflective-refractive aplanats. Academic Article uri icon


  • Aplanats were invented and developed for achieving superior image fidelity in telescopes [1–5] and lenses [6,7]. Aplanats step beyond the elimination of the principal zeroth-order spherical aberration typically achieved with parabolic mirrors or aspheric lenses by fulfilling Fermat's principle of constant optical path length. They additionally remove the next or first-order aber- ration referred to as coma by fulfilling the Abbe sine condition of constant magnification. More recently, aplanats (inherently imaging devices) were recognized to be capable of radiative transfer at the …

publication date

  • January 1, 2015