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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,...

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Related Experiment Video

Updated: Jun 22, 2026

Video-rate Scanning Confocal Microscopy and Microendoscopy
14:10

Video-rate Scanning Confocal Microscopy and Microendoscopy

Published on: October 20, 2011

Simple high-speed confocal line-scanning microscope.

Kang-Bin Im, Sumin Han, Hwajoon Park

    Optics Express
    |June 6, 2009
    PubMed
    Summary

    A novel confocal laser microscope uses an acousto-optic deflector (AOD) for high-speed imaging up to 191 frames/s. This mechanically stable system enables rapid analysis of fast biological and chemical interactions.

    Area of Science:

    • Optical microscopy
    • Biophotonics
    • Instrumentation science

    Background:

    • Confocal microscopy is crucial for high-resolution imaging.
    • Traditional confocal systems often rely on mechanical scanning, limiting speed.
    • Analyzing rapid dynamic processes requires faster imaging techniques.

    Purpose of the Study:

    • To develop a high-speed, mechanically stable confocal laser line-scanning microscope.
    • To achieve frame rates exceeding 100 frames per second for dynamic imaging.
    • To enable real-time analysis of fast biological and chemical interactions.

    Main Methods:

    • Construction of a confocal microscope utilizing a line scan camera and an acousto-optic deflector (AOD).
    • Implementation of a line scanner with an AOD and cylindrical lens for sweeping line focus.

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    Last Updated: Jun 22, 2026

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  • Characterization of imaging resolution in x, y, and z directions using a 50x objective lens.

    • Main Results:

    • Achieved confocal imaging at 191 frames/s (512 x 512 pixels) without mechanical parts.
    • Measured resolutions of 3.3 µm (z), 0.7 µm (x), and 0.9 µm (y).
    • Demonstrated a stable and high-speed imaging platform.

    Conclusions:

    • The developed microscope offers high-speed, high-resolution confocal imaging.
    • Its design eliminates mechanical scanning, enhancing stability and speed.
    • Potential applications include analyzing fast phenomena and rapid 3D image reconstruction in biological and chemical studies.