Classification of Microscope

The microscope can be classified into polarized Microscopes, optical Microscopes, electronic Microscopes, Digital microscopes, etc., according to the microscopic principle. Let's take a look at the classification of microscopes in Laboratory Devices.

Here is the content list:

l Polarized Microscope.

l Optical Microscope.

l Electronic Microscope.

l Portable Microscope.

l Scan tunnel Microscope.

Polarized Microscope.

A polarizing Microscope (Polarizing microscope) is a kind of Laboratory device used to study so-called transparent and opaque anisotropic materials, which have important applications in geology and other science and engineering disciplines. All substances with birefringence can be clearly distinguished under a polarized Microscope. Of course, these substances can also be observed by dyeing, but some are not available, and a polarized Microscope must be used. Reflected polarized light Microscopes are necessary instruments for the research and identification of birefringent substances by using the polarization characteristics of light.

Optical Microscope.

Usually consists of the optical part, lighting part, and mechanical part. Undoubtedly the optical part is the most critical, it consists of the eyepiece and objective lens. As early as 1590, Dutch and Italian spectacle makers had created magnifying instruments similar to Microscope. There are many types of optical Microscopes, mainly including bright field Microscope (ordinary optical Microscope), dark field Microscope, fluorescence Microscope, phase contrast Microscope, laser scanning confocal Microscope, polarized light Microscope, differential interference contrast Microscope, and inversion Microscope.

Electronic Microscope.

Electronic Microscopes have similar basic structural features to optical Microscopes, but they have much higher magnification and resolution of objects than optical Microscopes and use electron flow as a new light source to image objects. Since Ruska invented the first transmission electron Microscope in 1938, in addition to the continuous improvement of the performance of the transmission electron microscope itself, many other types of electron microscopes have also been developed. Such as scanning electron microscope, analytical electron microscope, ultra-high pressure microscope, etc. Combined with various electron microscope sample preparation techniques, an in-depth study of various aspects of the structure or structure-function relationship of the sample can be carried out. Microscopes are used to observe images of tiny objects. It is commonly used in the observation of biology, medicine, and tiny particles. An electronic Microscope can magnify objects up to 2 million times. Desktop Microscope, mainly refers to the traditional Microscope, which is purely optical magnifications, with high magnification and better imaging quality, but is generally larger and inconvenient to move. They are mostly used in laboratories and are inconvenient to go out or on-site. detection.

Portable Microscope.

Portable microscopes are mainly an extension of the series of digital Microscopes and video Microscopes developed in recent years. Different from traditional optical magnification, handheld Microscope are all digital magnifiers, which generally pursue portability, are small and exquisite, and are easy to carry; some handheld Microscope have their screens, which can be separated from the computer host for independent imaging, easy to operate, and easy to carry. Can integrate some digital functions, such as support for photography, video recording, image comparison, measurement, and other functions. Digital LCD Microscope, first developed and produced by Boyu Company, retains the clarity of the optical Microscope, brings together the powerful expansion of the digital Microscope, the intuitive display of the video Microscope, and the simplicity and convenience of a portable Microscope.

Scan tunnel Microscope.

Scanning tunneling Microscopes, also known as "scanning tunneling Microscopes" and "tunnel scanning Microscopes", are instruments that use the tunneling effect in quantum theory to detect the surface structure of matter. It was invented in 1981 by Gerd Binning (G. Binning) and Heinrich Rohrer (H. Rohrer) at IBM's Zurich Laboratory in Zurich, Switzerland, the two inventors, and Ernst Ruska shared the 1986 Nobel Prize in Physics. As a scanning probe microscopy tool, the Scanning Tunnel Microscope allows scientists to observe and locate individual atoms with a higher resolution than its atomic force Microscope. In addition, scanning tunneling Microscopes can precisely manipulate atoms with probe tips at low temperatures (4K), so it is both an important measurement tool and a processing tool in nanotechnology.

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