The correct use of aperture apertures
Due to the fact that the aperture and aperture of the condenser can affect the resolution of the microscope, it is important to master the correct usage method when using it. In the past, due to insufficient understanding of aperture aperture, it was often used as a tool to adjust the brightness of the field of view. Although adjusting the aperture aperture can change the brightness of the field of view to a certain extent, it directly affects the contrast, contrast, and resolution of imaging, and should be avoided as much as possible during use. In order to fully utilize the role of the aperture aperture of the condenser lens, especially for obtaining optimal resolution during microscopic photography, it is necessary to adjust the aperture aperture aperture so that its size is exactly 2/3 of the numerical aperture of the objective lens used (objective aperture image) after the sample is focused clearly when switching to a different magnification objective lens. The adjustment method is to use the centering telescope to focus on the black phase difference ring in the field of view, adjust the aperture aperture to see a polygon aperture image, and then adjust it to 2/3 of the objective aperture image, that is, between the outside of the black phase difference ring and the inside of the circular field of view. For convenience, the aperture apertures corresponding to each magnification objective can be pre adjusted and marked to avoid readjustment every time used.
1. When cleaning various glass components, gently wipe with gauze to remove fingerprints or oil stains. Wet the gauze with a small amount of mixed solution of ethylamine (70%) and alcohol (30%);
2. Do not splash any liquid onto the microscope. If it does, immediately turn the main switch to "O", unplug the power cord, and then wipe off any liquid splashed onto or under the objective lens;
3. Do not use organic solvents to wipe non optical components of the microscope. If you want to clean these components, please use a lint free and soft cloth dipped in a small amount of neutral cleaning agent to wipe them;
4. If the objective lens is not installed, be sure to cover the objective lens mounting screw hole on the objective lens converter to prevent dust and splashed tissue culture solution from entering the inside of the lens;
5. When not using a microscope, please cover it with a dust-proof cover. Before covering the microscope, be sure to wait for the lamp holder to cool down sufficiently;
6. Do not disassemble any part of the microscope, as this may result in reduced performance or functional failure;
7. Using equipment that can emit ultraviolet radiation near the microscope may cause discoloration of the colored parts (yellow) on the surface of the microscope, avoiding direct contact with it.
