How to distinguish the quality of a biological binocular microscope
1, Stability
I believe that every company purchasing a biological microscope is for long-term scientific research, so the lifespan and stability of the instrument must be considered. Microscopes are not low value consumables, and their normal service life should be over 30 years. The main factors that determine the stability and lifespan of the microscope are: 1. Raw materials 2. Manufacturing accuracy 3. Mechanical design.
2, Imaging quality
High contrast, high brightness, good color reproduction, and high resolution are the four elements that distinguish the imaging quality of biological microscopes. Just like choosing a computer, people usually pay attention to the old and new CPU as well as its performance when purchasing a computer, and do not pay much attention to the motherboard, hard disk cache, etc. Among the four elements of imaging quality of biological microscopes, resolution is the key focus, while the other three are relatively few. However, in fact, color difference, brightness, and color reproduction are indispensable to obtain fine tissues and delicate colors when observing imaging through a microscope.
Other issues that need attention include numerical aperture, resolution, magnification, depth of focus, field of view width, coverage difference, working distance, and so on.
Some precautions for using biological microscopes:
1. When moving a biological microscope, one hand must hold the bent arm of the microscope and the other hand must support the microscope base. Walking with one hand is prohibited.
2. Unauthorized disassembly of any components on the microscope is strictly prohibited.
3. The microscope must be placed on a stable table, and the operator should sit upright, natural, and comfortable, with both eyes open for observation.
4. Before each use of the microscope, regardless of the size of the object, the order must be low magnification followed by high magnification, and then adjusted using an oil immersion mirror.
5. When adjusting the microscope at low magnification, it is necessary to observe the lifting of the stage while tilting, and then rotate the coarse adjustment screw. Then, observe the lifting stage in the eyepiece to find the object. When using high-power mirrors and oil immersion mirrors, never rotate the coarse adjustment screw.
6. When observing the sample of the medicine, it is necessary to add a cover glass or place it in a culture dish, and use filter paper to absorb any water or medicine that may overflow around the cover glass to avoid contact with the microscope lens, which may corrode the lens.
7. When cleaning the mechanical parts of the microscope, such as metal. You can use gauze dipped slightly in alcohol to wipe, and when cleaning the optical parts of the lens and other dust, you can use ear wash balls to absorb the dust or use degreased cotton dipped slightly in special cleaning solution to wipe. Never use hands, cloth, rough paper, etc. to wipe.
8. After using up the 100x oil lens, it is necessary to wipe the lens with a specialized cleaning solution.
