A microscope is an optical instrument consisting of a combination of a lens or a few lenses, a symbol of human entry into the atomic age. Mainly used to enlarge the small objects to be visible to the naked eye can see the instrument. Microscope and electron microscope: the optical microscope was first created by Jansen and his son in Holland in 1590. Now the optical microscope the magnified 1600 times, the resolution of the minimum limit of 0.11 micron, the microscopy mechanical tube length is 160 mm. The microscope research and microbiology great contribution to human Leeuwenhoek, Dutch.

Microscope is one of the greatest inventions of mankind in twentieth Century. Before it was invented, people's ideas about the world around them are confined to the naked eye, or by a hand lens to help them see what they see.

The microscope shows a whole new world in man's field of vision. For the first time, people saw hundreds of "new" small animals and plants, and the internal structure of things from the human body to the plant fibers. Microscopy also helps scientists discover new species that can help doctors to treat diseases.

Optical microscope by the eyepiece, objective, coarse focusing screw, fine focusing screw, gripping sheet, optical aperture, shutter, converters, mirror, loading platform, arm of the mirror, lens, lens seat, a condenser, an aperture composition

The microscope can be classified into light microscope and electron microscope.

optical microscope

Usually by the optical part, the lighting part and the mechanical part. No doubt the optical part is the most important, it is the objective and the eyepiece. As early as 1590, the Holland andItalyglasses manufacturers have made a similar microscope amplifier. There are many kinds of optical microscopy, bright field microscopy (ordinary optical microscope), dark field microscopy, fluorescence microscopy, difference microscope, laser scanning is confocal microscope, polarizing optical microscopy, differential interference contrast microscope, inverted microscope.

electron microscope

Electron microscopy and optical microscopy is similar to the basic structure characteristics, but it has a ratio much higher optical microscopy to the object magnification and resolution capability, it will flow of electrons as a new light source, for imaging an object. Since Ruska was invented in 1938, the first transmission electron microscope has been developed, in addition to the continuous improvement of the performance of the transmission electron microscope. Such as scanning electron microscope, electron microscope, electron microscope and so on. In combination with various electron microscope sample preparation techniques, the relationship between the structure and function of the samples can be studied in depth. Microscope is used to observe the image of small objects. Observation of biological, medical and tiny particles. Electron microscope can magnify objects to 2 million times.

Tabletop microscope, mainly refers to the traditional type of microscope, pure optical amplification, the magnification higher, imaging quality is better, but volume bigger, not easy to move, the is more and more used in the laboratory, inconvenience out or on-site detection.

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