How does one determine how to magnify a microscope?
Many laboratories use microscopes, but they are not familiar with the relevant professional knowledge of microscopes. They only know how to operate them, but may not be very clear about some basic knowledge. So today we will talk about how the magnification of microscopes is calculated?
Perhaps some people may say that this is not a very simple problem, but in reality it is still a bit complicated.
First of all, let's give an example: when the magnification of the stereo microscope eyepiece is 10x, the zoom range of the variable magnification body is 0.7X-4.5X, and the additional objective lens is 2X. The optical magnification of this microscope is 10 times 0.7 times 2, resulting in a minimum magnification of 14 times. The maximum magnification is 10 times 4.5 times 2, which equals 90 times. Therefore, the total optical magnification of this stereo microscope ranges from 14 times to 90 times. Of course, this is only the actual magnification of the microscope mainframe. Next is the digital magnification of the microscope.
For example, if the size of the monitor is 17 inches and a 1/3 microscope camera is used, the digital magnification of the microscope camera as shown in the table below is 72 times. The formula for calculating the digital magnification of the microscope is: based on the configuration of the stereo microscope above, the variable magnification is 0.7X-4.5X, and the additional objective lens is 2X. The camera eyepiece is set to 1 (if the camera eyepiece has no multiplier, it does not need to be included in the calculation). According to the formula: objective lens X camera eyepiece magnification X digital magnification, the minimum digital magnification is 0.7 times 2 times 1 times 72, which equals 100.8 times. The maximum digital magnification is 4.5 times 2 times 1 times 72, which equals 648 times. Therefore, the range of digital magnification is from 100.8 times to 648 times.
In this case, two formulas will appear:
1. Optical total magnification=eyepiece magnification X objective magnification
2. Digital total magnification=objective lens X camera eyepiece magnification X digital magnification
This formula is suitable for any microscope, whether it is a metallographic microscope, a biological microscope, etc
