• Light Sources

    Inordertogenerateenoughexcitationlightintensitytofurnishsecondaryfluorescenceemissioncapableofdetection,powerfullightsourcesareneededsuchasmercuryorxenonarc(burner)lamps.

    2018-04-25 Pooher Inc. 81

  • Microscope Objectives: Numerical Aperture and Resolution

    The numerical aperture of a microscope objective is a measure of its ability to gather light and resolve fine specimen detail at a fixed object distance.

    2018-03-29 Pooher Inc. 318

  • 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. 242

  • Köhler Illumination - Light Sources

    Early microscopists relied on oil lamps and natural sunlight to provide an external source of illumination for their primitive (but often remarkably accurate) microscopes.

    2018-03-26 Pooher Inc. 66

  • Aberrations in Confocal Microscopy

    Refinements in design have simplified confocal microscopy to the extent that it has become a standard research tool in cell biology.

    2017-09-25 admin 364

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