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How Electron Microscopes Differ from Light Microscopes
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Microscopy visualizes structures that are too small to see with the human eye, but that is about all light microscopy and electron microscopy have in common. Light microscopy uses visible light or photons to illuminate a sample, while electron microscopy uses electrons, as the name suggests. Each technique has its advantages and disadvantages, discussed below.
How Does Light Microscopy Work?
The oldest of microscopy techniques, light microscopy, uses visible light and lenses to create a small object s magnified image. Basic light microscopes can be very simple e.g., a magnifying glass, and use one or several lenses for magnification. Compound light microscopes are more complex, using a system of lenses, with one set to enlarge the other s image to achieve higher resolution and sample contrast. ....

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