To choose a suitable student microscope for children, we must first look at the magnification and observe the object. Microscope is divided into:

Biological microscope: mainly used to see some transparent or translucent liquid and powder objects, mainly used for microbial inspection, routine hospital inspection and students' microscope. The maximum effective magnification is about 1600 times;

Stereomicroscope, also called stereomicroscope or dissecting mirror, is mainly used to look at some relatively large objects such as circuit boards, and the magnification is generally not very large, up to about 200 times;

Metallographic microscope is mainly used to observe metals, fragments and opaque objects. The maximum effective magnification is about 1000 times.

Polarizing microscope is mainly used for single refraction or birefringence objects, such as lithofacies, liquid crystal, fiber and so on.

In fluorescence microscope, samples that need to be irradiated with light of special wavelength band are generally observed by fluorescence excitation;

Tool microscope: or measuring microscope, mainly used for some industrial detection and measurement.

Precautions for purchasing children's microscopes:

First of all? It is suggested to give up the idea of buying a "professional" microscope.

Although the general laboratory teaching can use a slightly professional microscope, as long as a few hundred to a thousand, it is really unnecessary. Because even if you buy a microscope, the main purpose of this stage is to make children interested in the micro-world and see the tiny structures of common objects in life, rather than really doing any research.

Besides? The magnification of the objective lens is about 40 times, so there is no need to pursue high magnification. This is because the 100 times objective lens needs to be used as the medium between the lens and the cover glass, and then it needs to be cleaned with solvents such as xylene, which is still not good for the body.

In addition, when the oil mirror is working, it is very close to the cover glass, so it is easy for children who are not familiar with the operation to twist it, thus crushing the cover glass and even damaging the lens. For children, a low-power stereo microscope is also a more suitable choice.