riefly talk about optical microscope to digital microscope
The traditional optical microscope is an optical instrument that uses optical principles to magnify and image tiny objects that cannot be distinguished by the human eye, so as to allow people to extract microstructure information.
An optical microscope generally consists of a stage, a condenser illumination system, an objective lens, an eyepiece and a focusing mechanism.
The stage is used to hold the object to be observed. The microscope is best equipped with a moving ruler or a mechanical stage. Otherwise, it will be inaccurate when viewing the specimen by directly moving it by hand. The moving ruler is more affordable, the price is lower, the mechanical stage is more equipped, the accuracy is higher, and the service life is longer.
The focusing mechanism can be driven by the focusing knob to make the stage move up and down for coarse adjustment and fine adjustment, so that the observed object can be focused and imaged clearly. Its upper layer can be precisely moved and rotated in the horizontal plane. The observed part is adjusted to the center of the field of view.
The condensing illumination system is composed of a light source and a condenser. The function of the condenser is to concentrate more light energy to the observed part. The spectral characteristics of the illumination lamp must be adapted to the working band of the receiver of the microscope.
The objective lens is located near the object to be observed and is the first-stage magnification lens. Several objective lenses with different magnifications are installed on the objective lens converter at the same time, and the objective lens with different magnifications can enter the working optical path by rotating the converter. The magnification of the objective lens is usually 4 to 100 times. The objective lens is an optical element in the microscope that plays a decisive role in the quality of the image. Commonly used are achromatic objectives that can correct chromatic aberration for two colors of light; Chromatically corrected apochromatic objectives.
The eyepiece is a lens located near the human eye to achieve second-level magnification. The magnification of the mirror is usually 5 to 20 times. According to the size of the field of view that can be seen, the eyepiece can be divided into ordinary eyepieces with a smaller field of view, and eyepieces with a smaller field of view. There are two types of large wide-field eyepieces (or wide-angle eyepieces).
An optical microscope is just a combination of optical components and precision mechanical components, which uses the human eye as a receiver to observe an enlarged image.
Digital microscope is to convert the physical image seen by the microscope to make it image on the computer. The digital microscope is a perfect combination of sophisticated optical microscope technology, advanced photoelectric conversion technology and liquid crystal screen technology. A high-tech product. Thus, we can reproduce the research on the microscopic field from the traditional ordinary binocular observation through the monitor, thereby improving the work efficiency.
