Editing Ultramicroscope (section)

{{Short description|Type of high-resolution microscope}}
{{Use American English|date = April 2019}}
An '''ultramicroscope''' is a [[microscope]] with a system that lights the object in a way that allows viewing of tiny [[particle]]s via [[light scattering]], and not [[Reflection (physics)|light reflection]] or [[Absorption (electromagnetic radiation)|absorption]]. When the diameter of a particle is below or near the [[wavelength]] of [[visible light]] (around 500 [[nanometer]]s), the particle cannot be seen in a [[optical microscope|light microscope]] with the usual methods of illumination. The ''ultra-'' in ''ultramicroscope'' refers to the ability to see objects whose diameter is shorter than the wavelength of visible light, on the model of the ''ultra-'' in ''[[ultraviolet]]''.