The
basic design of the light microscope has changed little since the 17th
century. A lens of very short focal length (objective) is placed near
the subject, and creates an enlarged real image. This is viewed using
a second lens (eyepiece), the viewer seeing a greatly enlarged virtual
image. Today's complex objective lenses are capable of producing magnifications
up to a few hundred times life size with good resolution. Various techniques
are used to make structures in thin specimens more visible under the
microscope. These include differential staining (especially in biology)
immunofluorescence dyes or the use of polarised light (especially in
mineralogy and crystal science).
See more techniques:
Aerial Photography
Computed Tomography (CT Scans)
Endoscopy
High Speed Photography
Kirlian Photography
Light Microscopy (LM)
Magnetic Resonance Imaging (MRI)
Molecular Models
Radionuclide Scanning (Gamma Scanning)
Satellite Images
Scanning Electron Microscopy (SEM)
Scanning Tunnelling Microscopy (STM)
Schlieren Photography
Space Photography (NASA)
Thermography
Transmission Electron Microscopy (TEM)
Ultrasound Images
Ultraviolet Photography
X-Rays
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