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Classification of optical microscopes
There are various classification methods for optical microscopes: they can be divided into binocular and monocular microscopes based on the number of
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There are multiple classification methods for optical microscopes: by useNumber of eyepiecesIt can be divided into binocular and monocular microscopes; pressDoes the image have a sense of three dimensionalityIt can be divided into stereo vision and non stereo vision microscopes; pressObserve the objectIt can be divided into biological and metallographic microscopes, etc; Press the lighthermeneutical principlesIt can be divided into polarizing, phase contrast, and differential interference contrast microscopes, etc; presslight sourceIt can be divided into ordinary light, fluorescence, infrared light, and laser microscope, etc; pressReceiver typeIt can be divided into visual, photographic, and television microscopes.
Commonly used microscopes include binocular stereomicroscope, metallographic microscope, polarizing microscope, ultraviolet fluorescence microscope, etc.
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Binocular stereomicroscopeIt utilizes a dual channel optical path to provide a three-dimensional image for both the left and right eyes. It is essentially two single tube microscopes placed side by side, with the optical axes of the two tubes forming a perspective equivalent to that formed when observing an object with both eyes, thus creating a three-dimensional stereoscopic image. Binocular stereomicroscopes are widely used in the fields of biology and medicine for slicing operations and microsurgery; Used in industry for the observation, assembly, inspection, and other work of small components and integrated circuits.
metallurgical microscopeIt is a microscope specifically designed for observing the metallographic structure of opaque objects such as metals and minerals. These opaque objects cannot be observed in a regular transmission light microscope, so the main difference between gold and a regular microscope is that the former is illuminated by reflected light, while the latter is illuminated by transmitted light. In a metallographic microscope, the illumination beam is directed from the objective direction to the surface of the observed object, reflected by the object surface, and then returned to the objective for imaging. This reflective illumination method is also widely used in the detection of integrated circuit silicon wafers.
UV fluorescence microscopeIt is a microscope that uses ultraviolet light to excite fluorescence for observation. Some specimens may not show structural details in visible light, but after staining, they can emit visible light due to fluorescence when irradiated with ultraviolet light, forming visible images. This type of microscope is commonly used in biology and medicine.
Television microscope and charge coupled microscopeIt is a microscope that uses a television camera target or a charge coupled device as the receiving element. Install a television camera target or charge coupled device at the real image surface of the microscope to replace the human eye as a receiver. These optoelectronic devices convert optical images into electrical signal images, and then perform size detection, particle counting, and other tasks on them. This type of microscope can be used in conjunction with a computer, which facilitates the automation of detection and information processing, and is often applied in situations that require a large amount of tedious detection work.
Scanning microscopeIt is a microscope that allows the imaging beam to perform scanning motion relative to the object surface. In scanning microscopes, the objective lens achieves extremely high resolution by reducing the field of view. At the same time, optical or mechanical scanning methods are used to scan the imaging beam relative to the object surface within a larger field of view, and information processing techniques are used to obtain synthesized large-area image information. This type of microscope is suitable for observations that require high-resolution large field of view images.
Coarse focus spiral: Large range up and down adjustment of the lens barrel.
Fine focus spiral: Small range up and down adjustment of the lens barrelCoarse focus spiral: Large range up and down adjustment of the lens barrel.
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