Ernst Abbe (1840-1905), professor of physics and mathematics at the University of Jena, Germany, and major partner in the Carl Zeiss company, made important contributions to the theory and practice of optical microscopy. His compound microscope is a superb optical design based on a theoretical understanding of diffraction and the minimization of the effects of aberrations. Abbe enunciated his famous sine condition with regard to the axial point in the object plane of a centered image-forming system, such as a microscope or a telescope. When this condition is satisfied, "aberration-free" imaging of the object points located in the vicinity of the optical axis is assured.
Log in or Become a member to view the full text of this article.
This article may be available for purchase via the search at www.osapublishing.org.
OSA Members get the full text of Optics & Photonics News, plus a variety of other member benefits.
Publish Date: 01 February 1998
Developing Standards for the Optical Transport Network
WDM and Optical Networks: Market Directions
Plastic Optical Fiber: A Short-Haul Solution
Military Laser Applications: Providing Focus to Nonlinear Optics R&D
Laser Safety Standards and Fiber Optics: An Update
The OSA-Library Connection
A Wide-Range 35 mm SLR Zoom
Fun with CDs
Computer-Generated Phase-Only Holograms for 3D Displays: A MATLAB Approach
Lighting a Better Path to 3D-Printed Hydrogels
Reconfigurable Metasurfaces Control Light Precisely