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  2. File:Binocular compound microscope, Carl Zeiss Jena, 1914 ...

    en.wikipedia.org/wiki/File:Binocular_compound...

    Valued image: This file is marked as a valued image, but it is missing its scope! Please refer to Template:Assessments/doc!: This is a featured picture' on Wikimedia Commons (Featured pictures) and is considered one of the finest images.

  3. Bright-field microscopy - Wikipedia

    en.wikipedia.org/wiki/Bright-field_microscopy

    Compound microscopes first appeared in Europe around 1620. [2] [3] The actual inventor of the compound microscope is unknown although many claims have been made over the years. These include a dubious claim that Dutch spectacle-maker Zacharias Janssen invented the compound microscope and the telescope as early as 1590.

  4. Optical microscope - Wikipedia

    en.wikipedia.org/wiki/Optical_microscope

    The optical microscope, also referred to as a light microscope, is a type of microscope that commonly uses visible light and a system of lenses to generate magnified images of small objects. Optical microscopes are the oldest design of microscope and were possibly invented in their present compound form in the 17th century.

  5. Timeline of microscope technology - Wikipedia

    en.wikipedia.org/wiki/Timeline_of_microscope...

    1621: Cornelis Drebbel presents, in London, a compound microscope with a convex objective and a convex eyepiece (a "Keplerian" microscope). c.1622: Drebbel presents his invention in Rome. 1624: Galileo improves on a compound microscope he sees in Rome and presents his occhiolino to Prince Federico Cesi , founder of the Accademia dei Lincei (in ...

  6. Ernst Leitz GmbH - Wikipedia

    en.wikipedia.org/wiki/Ernst_Leitz_GmbH

    Kolorimeter Leitz Wetzlar Trinovid 8×20 C binoculars expanded [1] Leitz compound monocular microscope. Germany. 1922. Perea-Borobio Collection. Carl Kellner, mechanic and self-taught mathematician, published his treatise Das orthoskopische Ocular, eine neu erfundene achromatische Linsencombination (The orthoscopic ocular, a newly invented achromatic lens combination) in 1849, describing a new ...

  7. Phase-contrast microscopy - Wikipedia

    en.wikipedia.org/wiki/Phase-contrast_microscopy

    In each image point, the phase-shift image displays the quantified phase shift induced by the object, which is proportional to the optical thickness of the object. [10] In this way measurement of the associated optical field can remedy the halo artifacts associated with conventional phase contrast by solving an optical inverse problem to ...

  8. Condenser (optics) - Wikipedia

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

    The focus of the first lens is traditionally about 2mm away from the plane face coinciding with the sample plane. A pinhole cap can be used to align the optical axis of the condenser with that of the microscope. The Abbe condenser is still the basis for most modern light microscope condenser designs, even though its optical performance is poor.

  9. Oil immersion - Wikipedia

    en.wikipedia.org/wiki/Oil_immersion

    The resolution of a microscope is defined as the minimum separation needed between two objects under examination in order for the microscope to discern them as separate objects. This minimum distance is labelled δ. If two objects are separated by a distance shorter than δ, they will appear as a single object in the microscope.

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