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Related Experiment Videos

Confocal microscope with large field and working distance.

R H Webb1, F Rogomentich

  • 1Wellman Laboratories of Photomedicine, 40 Blossom Street, Boston, Massachusetts 02114, USA.

Applied Optics
|March 8, 2008
PubMed
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A novel confocal microscope design enables working 20 mm from samples with high resolution. This breakthrough offers potential for in vivo microscopy, mimicking pathology examination of excised tissues.

Area of Science:

  • Microscopy
  • Optical Engineering
  • Biomedical Imaging

Background:

  • Confocal microscopy is crucial for high-resolution imaging.
  • Existing systems often require close proximity to the sample.
  • In vivo imaging presents unique challenges for maintaining resolution and field of view.

Purpose of the Study:

  • To develop a confocal microscope capable of long working distances.
  • To achieve high lateral and axial resolution with a large field of view.
  • To explore applications in in vivo confocal microscopy.

Main Methods:

  • Utilized separate, noncollinear objective lenses for illumination and collection.
  • Designed a system to accommodate a 20 mm working distance.
  • Evaluated lateral and axial resolution performance.

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Main Results:

  • Achieved resolutions below 5 micrometers (lateral and axial).
  • Enabled operation at a 20 mm working distance from the sample.
  • Provided a field of view of 2.25 mm across.

Conclusions:

  • The novel confocal microscope design successfully provides long working distance and high resolution.
  • This technology has significant potential for in vivo confocal microscopy.
  • The system's performance is comparable to methods used in traditional pathology.