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Introduction to Microscopic Mechanical Devices
The mechanical device of a microscope is an important component of a microscope
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Mechanical device of microscopeIt is an important component of a microscope. Its function is to fix and adjust optical lenses, fix and move specimens, etc. It mainly consists of a mirror holder, a mirror arm, a stage, a lens barrel, an objective lens converter, and a focusing device.
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（1） Mirror holder and mirror arm
1The function of the mirror holder is to support the entire microscope, equipped with a reflector, and some also have an illumination source.
2The function of the mirror arm is to support the lens barrel and the stage. There are two types: fixed and tiltable.
（2） Carrier platform (also known as worktable or mirror platform)
The function of the stage is to place glass slides, which come in two shapes: circular and square, with the square having an area of 120mm×110mmThere is a light hole in the center, and there are small holes on the left and right sides behind the light hole for installing the pressure clamp. It is divided into two types: fixed and mobile.
Some platforms are equipped with rulers on both the vertical and horizontal coordinates, with a general reading of0.1mm， Vernier rulers can be used to measure the size of specimens and also to mark the inspected parts.
Some platforms are equipped with rulers on both the vertical and horizontal coordinates, with a general reading of0.1mm， Vernier rulers can be used to measure the size of specimens and also to mark the inspected parts.
（3） Lens barrel
Place the eyepiece at the upper end of the lens barrel and connect the objective lens converter at the lower end. It is divided into two types: fixed and adjustable.
The mechanical barrel length (the distance from the upper edge of the eyepiece tube to the lower end of the spiral port of the objective converter is called the barrel length or mechanical barrel length) that cannot be changed is called a fixed barrel, and the adjustable barrel is called an adjustable barrel. Most modern microscopes use fixed barrels, and domestic microscopes also mostly use fixed barrels. The mechanical barrel length of domestic microscopes is usually160mm.
There are two types of lens barrels for installing eyepieces: single tube and double tube. Single tube can be divided into two types: upright and inclined, while double tube is inclined.The mechanical barrel length (the distance from the upper edge of the eyepiece tube to the lower end of the spiral port of the objective converter is called the barrel length or mechanical barrel length) that cannot be changed is called a fixed barrel, and the adjustable barrel is called an adjustable barrel. Most modern microscopes use fixed barrels, and domestic microscopes also mostly use fixed barrels. The mechanical barrel length of domestic microscopes is usually160mm.
The binocular microscope allows for simultaneous observation of both eyes to alleviate eye fatigue. The distance between the binoculars can be adjusted, and one of the eyepieces has a diopter adjustment (i.e. vision adjustment) device, which is convenient for observers with different visual acuity.
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