• Transmitted Darkfield Illumination

    Allofusarequitefamiliarwiththeappearanceandvisibilityofstarsonadarknight,thisdespitetheirenormousdistancesfromtheEarth.

    2018-04-17 Pooher Inc. 285

  • Contrast in Optical Microscopy

    When imaging specimens in the optical microscope, differences in intensity and/or color create image contrast, which allows individual features and details of the specimen to become visible. Contrast is defined as the difference in light intensity between the image and the adjacent background relative to the overall background intensity. In general, a minimum contrast value of 0.02 (2 percent) is needed by the human eye to distinguish differences between the image and its background.

    2018-04-16 Pooher Inc. 161

  • Anatomy of the Microscope - Microscope Objectives

    A majority of microscope manufacturers also offer a wide variety of objectives having unique configurations designed to perform specific functions not normally found on common laboratory microscopes.

    2018-03-29 Pooher Inc. 321

  • Anatomy of a Microscope - Image Brightness

    Regardless of the imaging mode utilized in optical microscopy, image brightness is governed by the light-gathering power of the objective, which is a function of numerical aperture.

    2018-03-27 Pooher Inc. 238

  • Olympus Microscopy Resource Center | Anatomy of the Microscope

    Microscopes are instruments designed to produce magnified visual or photographic images of small objects.

    2017-09-21 admin 130

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