Introduction to the classification of optical microscopes
2023-02-05 12:08:59
Microscopes have a variety of classification methods: according to the number of eyepieces can be divided into binocular and monocular microscopes; according to whether the image has a stereoscopic effect can be divided into stereoscopic and non-stereoscopic microscope; according to the observation of the object can be divided into biological and metallographic Microscope, etc.; according to the optical principle can be divided into polarized light, phase contrast and differential interference contrast microscope; according to the type of light source can be divided into ordinary light, fluorescence, infrared light and laser microscope; according to the type of receiver can be divided into visual, photography And TV microscopes, etc.
Commonly used microscopes include binocular stereo microscopes , metallographic microscopes , polarized microscopes , and ultraviolet fluorescence microscopes.
The binocular stereo microscope uses a two-channel optical path to provide a stereoscopic image for both the left and right eyes. It is essentially two juxtaposed microscopes placed side by side. The optical axes of the two barrels are equivalent to the angle of view formed when people observe an object with binoculars, thereby forming a three-dimensional stereoscopic image. Binocular stereo microscopes are widely used in biomedical and medical fields for slicing operations and microsurgery; for industrial observation, assembly, inspection, etc. of tiny parts and integrated circuits.
Metallographic microscopes are microscopes designed to observe the metallographic structure of opaque objects such as metals and minerals. These opaque objects cannot be observed in ordinary transmitted light microscopes, so the main difference between metallographic and ordinary microscopes is that the former reflects light and the latter illuminates with transmitted light. In the metallographic microscope , the illumination beam is directed from the objective lens to the surface of the object to be observed, reflected by the object surface, and returned to the objective lens for imaging. This kind of reflective illumination is also widely used in the inspection of integrated circuit silicon wafers.
An ultraviolet fluorescence microscope is a microscope that observes fluorescence by ultraviolet light. Some specimens do not perceive structural details in visible light, but are dyed to emit visible light due to fluorescence when illuminated by ultraviolet light to form a visible image. Such microscopes are commonly used in biology and medicine.
A television microscope and a charge coupler microscope are microscopes in which a television camera target or a charge coupler is used as a receiving element. A television camera target or a charge coupler is installed in the real image plane of the microscope instead of the human eye as a receiver, and the optical image is converted into an image of an electric signal by these optoelectronic devices, and then subjected to size detection, particle counting, and the like. This kind of microscope can be used in conjunction with a computer, which facilitates the automation of detection and information processing, and is often used in applications where a lot of cumbersome inspection work is required.
A scanning microscope is a microscope in which the imaging beam can be scanned relative to the object surface. In the scanning microscope, the field of view is reduced to ensure the highest resolution of the objective lens. At the same time, the imaging beam is scanned in a larger field of view relative to the object surface by optical or mechanical scanning, and information processing technology is used to obtain the synthesis. Large area image information. This type of microscope is suitable for observation of large field of view images that require high resolution. Rough quasi-coil spiral: The lens barrel is moved up and down over a wide range.
Beijing Khan Meng Zixing Instrument Co., Ltd. ( )
Electrical Fire Monitoring System
Electrical Fire Monitoring System,Electrical Fire Monitoring Detector,Combined Fire Monitoring Detector,Combined Electrical Fire Detector
LIAONING YINGKOU TIANCHENG FIRE PROTECTION EQUIPMENT CO.,LTD , https://www.tcfiretech.com