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Related Concept Videos

Confocal Fluorescence Microscopy01:16

Confocal Fluorescence Microscopy

Confocal microscopy is an advanced microscopic technique. The prime advantage of the confocal microscope over other microscopy techniques is its ability to block the out-of-focus light from the illuminated samples using pinholes. It is widely used with fluorescence optics to obtain high-resolution, sharp contrast images. Unlike optical microscopes, confocal microscopes use a focused beam of light laser to scan the entire sample surface at different z-planes. These microscopes are, therefore,...
Super-resolution Fluorescence Microscopy01:37

Super-resolution Fluorescence Microscopy

Super-resolution fluorescence microscopy (SRFM) provides a better resolution than conventional fluorescence microscopy by reducing the point spread function (PSF). PSF is the light intensity distribution from a point that causes it to appear blurred. Due to PSF, each fluorescing point appears bigger than its actual size, and it is the PSF interference of nearby fluorophores that causes the blurred image. Various approaches to achieving higher resolution through SRFM have recently been developed.

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Related Experiment Video

Updated: May 9, 2026

Design and Building of a Customizable, Single-Objective, Light-Sheet Fluorescence Microscope for the Visualization of Cytoskeleton Networks
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Evaluating optical aberrations using fluorescent microspheres: methods, analysis, and corrective actions.

Paul C Goodwin1

  • 1GE Healthcare, Issaquah, Washington, USA.

Methods in Cell Biology
|August 13, 2013
PubMed
Summary
This summary is machine-generated.

Evaluate your microscope's optical components for optimal imaging. Subdiffraction fluorescent microspheres help assess aberrations and troubleshoot issues, ensuring superior microscopy performance.

Keywords:
AberrationAstigmatismFluorescent microsphereOpticsPSF

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Area of Science:

  • Optical microscopy
  • Image quality assessment

Background:

  • Microscopy system performance relies on the entire optics train.
  • Fundamental evaluation of individual optical components is crucial.
  • Understanding system-level optical performance is key for optimal results.

Purpose of the Study:

  • To provide concise and visual methods for evaluating microscope optical performance.
  • To utilize subdiffraction fluorescent microspheres for aberration assessment.
  • To offer practical guidance on troubleshooting and optimizing microscopy.

Main Methods:

  • Systematic evaluation of the entire optics train.
  • Using subdiffraction fluorescent microspheres for aberration analysis.
  • Visual and quantitative assessment of optical performance.

Main Results:

  • Demonstrated methods for evaluating monochromatic and polychromatic aberrations.
  • Provided practical troubleshooting techniques for optical problems.
  • Offered insights into optimizing sample preparation for enhanced imaging.

Conclusions:

  • Comprehensive evaluation of optical components is essential for optimal microscopy.
  • Subdiffraction microspheres offer a versatile tool for aberration analysis.
  • Systematic troubleshooting and sample preparation are vital for high-performance imaging.