Microscope shows a brand new world in human vision. For the first time, people have seen hundreds of "new" "new" small animals and plants, as well as internal structures from the human body to plant fiber and other things.So how to buy a microscope that suits you?First of all, choose a microscope type, second, consider the comfort of the operation experience, and then select the magnification. Finally, consider the quality of the optical system. Lets take a closer look at it.
The difference between digital microscope and ordinary microscope
1. Digital microscope has a microscopic camera function. Save the observed microscopic effects to form graphic files, which can be transmitted to the relevant departments. Ordinary microscope can only be observed through eyepiece and cannot perform micro -cameras.
2. Digital microscopes are connected to the computer, which can realize multiple people at the same time; ordinary microscope can only be observed in one person.
3. Digital microscope can be previewed by the computer screen, which can reduce eye fatigue; ordinary microscope needs to be observed by eyepiece at all times, which can easily cause excessive eye fatigue.
4. The imaging device of the digital microscope can be measured, print graphic reports, video and other functions; ordinary microscope can only be simply observed.
5. Digital microscope is a new era of the development of modern scientific instruments and instruments. It has many functions that ordinary microscope does not have.It has developed rapidly in scientific research, product testing, teaching demonstrations, archeology, etc.
6. The appearance of the digital microscope is slightly different from that of ordinary microscope.
How to buy microscopy
1. What kind of microscope should I use to understand first?
The microscope is divided into: orthopedic microscope, inverted microscope, asanal microscope, fluorescent microscope, differential microscope, polarized microscope, golden display microscope, laser co -focus microscope, etc.Positive microscope is more suitable for observing glass, upside -down microscope is more suitable for the observation of the petri dish. The difference in microscope is more suitable for living cells and unsalisable biological specimens. The fluorescent microscope is suitable for spontaneous fluorescence and induced fluorescent specimen imaging.
2. The comfort of the operation experience?
Now the comfort of the microscope experience is a big selling point of the microscope. The pictures are simultaneously displayed, the screen display is displayed, and the saved pictures are directly modified and edited, which is very helpful for the emancipated experiments.
3. What effect do you want?
True nuclear cells: 10-100 μm; ribron cells: 1-10 μm; nucleus: about 7cm; mitochondria: 0.5-1 μm; most viruses: 20-100nm.The minimum optical microscope can be distinguished by 200nm; smaller mycoplasma and virus need to be observed with electronic microscope.Optical total placing large multiplier rate = multiplier mirror of the eyepiece mirror, the total number of numbers of the digital placing = the large magnification of the eyed mirror X object mirror X digital magnification.Therefore, choose the right microscope and configuration according to the size of the sample observed.
4. The quality of the optical system?
Differential ability is the ability to observe the details of the sample and the speed of the image -another important factor that needs to be considered.The material mirror is very important in the optical system. The higher the numerical pore (NA) of the objective mirror, the stronger the resolution ability.The degree and budget that users need to see, select the appropriate object mirror of numerical aperture (NA).In addition to the numerical pores (NA), the degree of correction of the microscope mirror to the ball and the color difference between the microscope is also required.Choose the best objective mirror within the budget range.The quality of the material mirror will directly affect the quality of the data, so this is a very important factor that needs to be considered.
There are many types and functions on the market for scientists to choose from.Sometimes the choice may be one side.The best way is to investigate according to your own needs, make comparison of different equipment, and the evaluation of current needs and future plans.
Daily maintenance of microscope
1. It is necessary to master and strictly implement the following microscopic use procedures.
2. When sending the microscope, you must hold the curved arm in one hand and hold the base with the other hand.The microscope cannot be tilted, so as not to slide out of the upper end of the lens barrel.Put it lightly when you send the microscope.
3. When observing, you cannot move the position of the microscope casually.
4. The optical part of the microscope can only be wiped with a special scratching lens paper. It cannot be wiped with other things, let alone touch the lens with his fingers, so as not to defile the lens of the sweat.
5. Keep the microscope dry and clean to avoid defense of dust, water and chemical reagents.
6. When converting object mirrors, do not move animal lens, you can only rotate the converter.
7. Do not rotate the focusing wheel at will.When using a micro -movement knob, light force, slow rotation, do not rotate hard when you ca n’t rotate.
8. Do not disassemble the parts on the microscope arbitrarily. It is strictly forbidden to disassemble the lens lens at will, so as not to damage the converters screw port, or the thread is loosened and the low -power mirror is not focused.
9. When using a high -power mirror, do not adjust the focal length of the handwheel with coarse -to -focus to avoid excessive moving distance and damage mirror and glass.
10. Before sending back, you must check whether there are water or reagents on the lens lens. If you have it, you must wipe it clean, and wipe the table clean, then put the microscope in the box, and pay attention to the lock box.

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