MicroscopyThe use of instrumentation and techniques for visualizing material and details that cannot be seen by the unaided eye. It is usually done by enlarging images, transmitted by light or electron beams, with optical or magnetic lenses that magnify the entire image field. With scanning microscopy, images are generated by collecting output from the specimen in a point-by-point fashion, on a magnified scale, as it is scanned by a narrow beam of light or electrons, a laser, a conductive probe, or a topographical probe.
LightThat portion of the electromagnetic spectrum to which the human eye is sensitive. Light is about 400 to 800 nanometers in wavelength, i.e., between the ultraviolet and infrared spectra.
LensesPieces of glass or other transparent materials used for magnification or increased visual acuity.
LightThat portion of the electromagnetic spectrum to which the human eye is sensitive. Light is about 400 to 800 nanometers in wavelength, i.e., between the ultraviolet and infrared spectra.
|