Showing papers on "Apochromat published in 1972"
TL;DR: In this paper, the authors derived relations for computation of the plane of best focus in white light and the tolerance of maximum of chromatic aberration by using Strehl's and Hopkin's criteria.
Abstract: Relations for computation of the plane of best focus in white light and the tolerance of maximum of chromatic aberration by using Strehl's and Hopkin's criteria are derived. The correction of the chromatic aberration is taken as the best, if the position of the best focus is identical with that plane in which the condition of the perfect imaging is fulfilled for all wavelengths of the spectral interval. The considerations are based on the precondition that the monochromatic aberrations of the optical system are negligibly small and that only the chromatic aberrations are effective.
1 citations
TL;DR: Spherical and chromatic aberration as functions of lens magnification have been computed for an immersion lens with a ''bell-shaped'' axial field distribution as mentioned in this paper, and the results show that the aberration is proportional to the diameter of the lens.
Abstract: Spherical and chromatic aberration as functions of lens magnification have been computed for an immersion lens with a ``bell‐shaped'' axial field distribution.
01 Jan 1972
TL;DR: In this article, images reconstructed from long-wavelength holograms have aberrations as a result of large construction to reconstruction wavelength ratios, which may seriously degrade image resolution due to the large number of spherical aberrations.
Abstract: Images reconstructed from long wavelength holograms have aberrations as a result of large construction to reconstruction wavelength ratios. For many practical recording geometries, these aberrations of which spherical aberration is often the largest may seriously degrade image resolution.