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Phase contrast observation

Detailed explanation of microscope observation mode.

An optical microscope uses visible light and lenses to magnify small specimens. Light passes through the sample, is focused by an objective lens to cr

A Brief History of Microscopes With the advancement of science and technology, there has been a growing need to observe the microscopic world. The mic

Objective lens is to determine the performance of the microscope is the most important component, installed in the objective converter, close to the o

1. Optical performance We need to focus on the magnification, numerical aperture (NA), working distance and calibration level of objective 10x achroma

1.Definition of achromatic objective Achromatic objective is an instrument used to correct chromatic and spherical aberration of other colours of ligh

1. The core principle of focusing The working distance of high magnification lens of achromatic objective lens (e.g. 40x, 100x) is very short, and it

1. Lighting sources: one uses electricity and the other uses light. The electron microscope is illuminated by an electron gun, which emits an electron

1. Chromatic aberration When white light passes through an ordinary lens, axial chromatic aberration allows blue light and red light to be focused in

Suppose you and your friends play stubble, the resolution is the smallest distance you can see the difference between the two pictures. The resolution

'Want to see a thousand miles, a higher level', human exploration of the microscopic world, just like climbing the peak of knowledge, and the microsco