Microscope related knowledge summary

1. The imaging process of the microscope: the light source (the traditional microscope is a natural light source, now mostly an artificial light source) is projected onto the object through the mirror and then to the aperture. After the object reflects the light source, the optical light passes through the objective lens and is formed by refraction in the lens. The real image magnified by the object is further enlarged by the eyepiece through the eyepiece and finally into the human eye.

2. Calculation of microscope magnification: The actual magnification of the microscope is the magnification of the objective lens multiplied by the magnification of the eyepiece. Magnification refers to the enlargement of the length, width or diameter of an object, rather than the enlargement of the volume or area of ​​the object.

3. The relationship between the length of the eyepiece and the objective lens and their magnification: the longer the length of the eyepiece, the smaller the magnification, while the objective lens is just the opposite. The longer the length of the objective lens, the larger the magnification.

4. The relationship between the moving direction of the object and the moving direction observed under the mirror: the actual moving direction of the object is opposite to the moving direction observed under the microscope, the moving image of the object moves up, and the moving direction observed under the microscope is downward, and the object is oriented. Move to the right and the object observed under the microscope moves to the left.

5, adjust the brightness of the field of view: Now most of the microscope is a human light source, we can directly adjust the brightness of the light source through the light source brightness adjustment knob to achieve the purpose of adjusting the brightness of the field of view, and we can also increase or decrease the aperture to adjust The brightness of the field of view.

6. Basic operation of the microscope: Remove the microscope, energize and turn on the light source, and place the sample on the stage. First convert the objective turntable with a low power microscope, look at the objective lens and sample and adjust the coarse adjustment to bring the objective lens close to the sample, then look through the eyepiece, adjust the coarse adjustment to keep the objective lens away from the sample until you can see it in the eyepiece. Image, then adjust the fine adjustment to make the object image the clearest, then turn the objective dial to high magnification to fine tune until the image is clearest. After use, remove the sample, turn off the power, cover the dust cover, and place the microscope in a dry, well-ventilated place.

Beijing Khan Meng Zixing Instrument Co., Ltd. ( )

Fresh White Garlic

Fresh White Garlic,Hardneck Garlic,White Garlic Plant,Fresh White Garlic In Bulk

shandong changrong international trade co.,ltd. , https://www.changronggarliccn.com