Microscope model is one of the indispensable tools in scientific research and education. The basic principle is to magnify tiny objects, making details that cannot be directly observed by the naked eye visible. There are many types of microscopes, the most common of which are optical microscopy, electron microscopy and fluorescence microscopy.
An optical microscope uses visible light to pass through a sample and focus the light to form an enlarged image in the eyepiece. Its structure usually includes light source, objective lens, eyepiece and so on. The magnification of the objective is closely related to the design of the lens. Some high-performance objective lenses can provide up to hundreds or even thousands of times magnification, suitable for the observation of bacteria, cell structures and other small organisms.
Electron microscopy uses electron beams instead of visible light for imaging. The resolution of this microscope is much higher than that of the optical microscope, which can reach the nanometer level. Therefore, electron microscopy is often used in materials science, biology and other fields to help researchers observe structures and properties at the atomic level. Despite its high cost and complex operation, its precision and meticulousness make it an important place in the scientific community.
Fluorescence microscopy is a special type of light microscope that looks at cells and molecules through a fluorescently labeled sample. This kind of microscope can selectively excite fluorescent substances in the sample to produce fluorescence of specific wavelengths, so as to realize the visual study of biomolecules and cells. Fluorescence microscopy is widely used in cell biology and medical research, helping scientists gain insight into disease mechanisms and cell behavior. Regardless of the microscope model, they open new horizons for scientific exploration.