Field of view of the microscope
What is the Field of View of a Microscope? Intuitively speaking, it is the range observed by the microscope.
When we observe with a microscope, the size of the bright original shape we see can be adjusted by the field diaphragm in the eyepiece.
The diameter of the field of view is also called the width of the field of view, which refers to the actual width range of the inspected object that can be accommodated in the circular field of view seen under the microscope. The larger the diameter of the field of view, the larger the observation range and the easier it is to observe.
Refer to the formula: F=FN/Mob
(F: field diameter, FN: field number, Mob: objective lens magnification. Field Number (Field Number, abbreviated as FN), marked on the outside of the eyepiece barrel)
It can be seen from the formula:
1. The field diameter is proportional to the field number.
2. Increasing the magnification of the objective lens reduces the diameter of the field of view. Therefore, if you can see the whole picture of the inspected object under the low-power lens, and change to a high-magnification objective lens, you can only see a small part of the inspected object. In other words, the larger the magnification, the smaller the field of view, and the relationship is inversely proportional.
