How to keep the light path of the microscope clear
The light path of a microscope includes eyepieces, objective lenses, upper or lower light sources, and light boxes. This optical path system consists of several parts. If one of them has a problem, the entire system will not be able to work.
1: The surface lens of the eyepiece and objective lens is most susceptible to contamination by dust, dirt and oil. When contrast and clarity are found to be reduced, or fogging occurs, you need to use a magnifying glass to carefully check the condition of the eyepiece and the lens in front of the objective lens.
2: It is very important to ensure the optical performance of the microscope. When the microscope is not in use, the microscope should be covered with the dust cover provided by the instrument. If there is dust and dirt on the optical surface and instrument, blow a ball to blow off the dust or use a soft brush to remove the dirt before wiping the surface.
3: The optical surface should be cleaned with lint-free cotton cloth, lens paper or cotton swabs moistened with special lens cleaning fluid. When cleaning, you should avoid using too much solvent. Lens cleaning paper or cotton swabs should be properly moistened with solvent, but do not use too much solvent to penetrate into the objective lens, resulting in a decrease in the clarity of the objective lens and damage to the objective lens.
4: The low-magnification objective lens has a fairly large front lens, which can be wiped with a cotton cloth or cotton swab wrapped around your finger and lens cleaning paper moistened with ethanol. 40X and 100X need to be carefully inspected using a magnifying glass. In order to achieve high flatness in high-power lenses, a front lens with a concave surface with a small radius of curvature is used. When wiping this lens, use a toothpick or cotton swab with a cotton ball to clean it. Be gentle when wiping the lens surface. Do not use excessive force or scratching motions, and make sure your front touches the concave surface of the lens. After cleaning, use a magnifying glass to check whether the objective lens is damaged. If you must open the observation tube, be careful not to touch the exposed lens under the tube. If there are fingerprints on the surface of the lens, it will reduce the clarity of the image. You should use a tool to clean the objective lens and eyepiece. method to wipe.
