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  2. Ernst Abbe - Wikipedia

    en.wikipedia.org/wiki/Ernst_Abbe

    Ernst Karl Abbe HonFRMS (23 January 1840 – 14 January 1905) was a German businessman, optical engineer, physicist, and social reformer. Together with Otto Schott and Carl Zeiss, he developed numerous optical instruments.

  3. Diffraction-limited system - Wikipedia

    en.wikipedia.org/wiki/Diffraction-limited_system

    Memorial in Jena, Germany to Ernst Karl Abbe, who approximated the diffraction limit of a microscope as = ⁡, where d is the resolvable feature size, λ is the wavelength of light, n is the index of refraction of the medium being imaged in, and θ (depicted as α in the inscription) is the half-angle subtended by the optical objective lens (representing the numerical aperture).

  4. Abbe sine condition - Wikipedia

    en.wikipedia.org/wiki/Abbe_sine_condition

    When the imaging system obeys the Abbe sine condition, the ratio of the sines of these angles equal the (lateral absolute) magnification of the system. In optics , the Abbe sine condition is a condition that must be fulfilled by a lens or other optical system in order for it to produce sharp images of off-axis as well as on-axis objects.

  5. Dispersion (optics) - Wikipedia

    en.wikipedia.org/wiki/Dispersion_(optics)

    Design of compound achromatic lenses, in which chromatic aberration is largely cancelled, uses a quantification of a glass's dispersion given by its Abbe number V, where lower Abbe numbers correspond to greater dispersion over the visible spectrum.

  6. Near-field scanning optical microscope - Wikipedia

    en.wikipedia.org/wiki/Near-field_scanning...

    According to Abbe's theory of image formation, developed in 1873, the resolving capability of an optical component is ultimately limited by the spreading out of each image point due to diffraction. Unless the aperture of the optical component is large enough to collect all the diffracted light, the finer aspects of the image will not correspond ...

  7. Optical aberration - Wikipedia

    en.wikipedia.org/wiki/Optical_aberration

    The preceding review of the several errors of reproduction belongs to the Abbe theory of aberrations, in which definite aberrations are discussed separately; it is well suited to practical needs, for in the construction of an optical instrument certain errors are sought to be eliminated, the selection of which is justified by experience. In the ...

  8. Mieczysław Wolfke - Wikipedia

    en.wikipedia.org/wiki/Mieczysław_Wolfke

    At University of Wrocław in the Otto Lummer’s team Wolfke worked at the generalization of the Abbe’s theory of optical imaging for non-linear gratings. In 1910 he obtained degree of Doctor of Philosophy (PhD) for dissertation about the resolving power of optical systems on example of microscope.

  9. Condenser (optics) - Wikipedia

    en.wikipedia.org/wiki/Condenser_(optics)

    The Arlow-Abbe condenser is a modified Abbe condenser that replaces the iris diaphragm, filter holder, lamp and lamp optics with a small OLED or LCD digital display unit. The display unit allows for digitally synthesised filters for dark-field, Rheinberg, oblique and dynamic (constantly changing) illumination under direct computer control.