Beijing Zhongxian Olympus CX21 biological microscope standard use method
CX21-the new standard for biological teaching microscopes. It uses advanced UIS2 optical system, has excellent image resolution, higher reliability and ruggedness; flat field objective lens as a standard configuration, can provide superior image flat field in similar microscope, can be widely used in biology Agriculture, industry and other fields are ideal instruments for teaching and scientific research. CX21 specifications project CX21 Optical system UIS2 optical system (infinity correction system) Lighting device Built-in transmitted light Kohler illumination, 6V20W halogen lamp 100-240V 50 / 60Hz universal Focusing system The stage moves vertically, the coarse adjustment stroke is 20mm per turn, and the fine adjustment minimum distance is 2.5 microns Change mirror turntable Fixed 4-hole objective lens turntable Observation tube Binocular observation tube, lens tube inclination angle 30 °, interpupillary distance 48-75mm Stage loading device Steel wire drive, size 120mm × 132mm, movable range is X axis 76mm × Y axis 30mm, single-piece specimen clip Condenser Abbe condenser, numerical aperture 1.25 (when immersed in oil), built-in aperture diaphragm Objective lens Flat achromatic Eyepiece (10 ×) Field of view FN 18 (anti-mildew treatment) Options Reflector, 15 × eyepiece (FN12, anti-mold treatment), cable holder, micrometer, How to use the microscope: 1. Microscope delivery: ①Hold the mirror arm with your right hand; ② hold the mirror holder with your left hand; ③ place it in front of your chest. 3. Light alignment: ①Turn the coarse quasi-focusing screw to make the lens barrel rise slowly, and then turn the converter to align the low-magnification objective lens with the aperture; ②Use your finger to turn the shutter (or sheet aperture) so that the maximum aperture is aligned The quasi-through light hole, the left eye is looking into the eyepiece, and at the same time, the mirror is turned to face the light source, so that the brightness in the visual field is uniform and appropriate. 5. Use of high magnification objective: Before using high magnification objective, you must first use low magnification objective to find the observed object image and adjust it to the center of the field of view, then rotate the converter and change the high magnification objective. After switching to a high magnification lens, the brightness in the field of view becomes darker, so generally choose a larger aperture and use the concave surface of the mirror, and then adjust the fine quasi-focus spiral. The number of objects viewed decreases, but the volume becomes larger. 6. Use of reflector: The reflector is usually used in conjunction with a shutter (or aperture) to adjust the brightness in the field of view. The reflector has a flat surface and a concave surface. When aiming at the light, if the field of view is too strong, use the plane of the reflector. If the light is still too strong, use a smaller aperture; conversely, if the light in the field of view is weak, use a larger aperture or use a mirror Concave surface. Beijing Zhongxian Hengye Instrument Co., Ltd. Beijing Zhongxian Dingsheng Technology Co., Ltd. Person in charge: Yang Panpan Office Guest Chairs,Office Waiting Room Chairs,Office Reception Chairs Feat Top International(China) CO.,LTD , https://www.nbfeattop.com
4 × NA0.10 WD 22.0mm
10 × NA0.25 WD 10.5mm
40 × NA0.65 WD 0.56mm
100 × NA1.25 WD 0.13mm (optional)
Arrow indicator, filter tray, dark field diaphragm
2. Rotation of the microscope: ①The lens barrel is forward and the mirror arm is backward; ②Placed on the table in front of the observer ’s seat, biased to the left side of the body, which is convenient for the left eye to observe into the eyepiece; ③Placed inside the table, away from the edge Around 5cm.
4. Use of low magnification objective lens: â‘ Turn the coarse quasi-focusing screw by hand to slowly lower the lens barrel, and at the same time, look at the objective lens from the side with both eyes, and stop when the objective lens and the slide of the stage are 2 to 3mm apart. â‘¡Look into the eyepiece with your left eye (note that your right eye should be open at the same time), and turn the coarse quasi-focus screw to make the lens barrel rise slowly until you see the object clearly. If it is not clear, you can adjust the fine quasi-focus spiral until it is clear.
7. Wipe the lens: â‘ Use special lens-cleaning paper; â‘¡When wiping the lens, first fold the lens-cleaning paper several times, and then wipe in one direction. Do not wipe back and forth or turn to wipe; â‘¢If the lens is contaminated with oil, you can Drop a few drops of xylene on the lens paper, and then wipe as described above.
8. The magnified object of the microscope: it is the length and width of the object, not the area, nor the volume.
9. The focal length of the microscope: the distance between the objective lens and the film, the use of quasi-focus spiral.
10. The moving direction of the object image when the microscope is used: on the contrary, that is, where the object image is in the field of view, the film will move in this direction.
11. Judgment of foreign objects when the microscope is used: on the eyepiece, objective lens or slide, usually by moving the slide (whether it is on the slide) and turning the converter (whether it is on the objective) to judge, the rest is on the eyepiece.
12. Placement of the microscope after the experiment: after the microscope is used, the slide should be removed, and the mechanical part should be wiped clean with white gauze; turn the converter to make the two objectives deviate from both sides; The tube is lowered to the lowest point, the mirror is erected, covered with red silk cloth, and then the microscope is locked in the box.