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What is a stereo microscope? What is the working principle and characteristics?
A stereo microscope, which can also be called a stereo microscope or a dissecting microscope, is a visual instrument with a positive stereoscopic effect. Microscopes are more widely used than polarized light microscopes, metallographic microscopes, and fluorescence microscopes.
It is widely used in biotechnology and medicine for slicing operations and microsurgery; in the industry for observation, assembly, inspection, etc. of tiny parts and integrated circuits.
Stereo microscopes have the following characteristics:
(1) Using the two-channel optical path, the left and right beams in the binocular tube are not parallel, but have a certain angle - the body angle of view (generally 12 degrees - 15 degrees), providing a stereoscopic effect for the left and right eyes. Image. 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.
(2) It is erect, easy to operate and dissected, because the prism below the eyepiece reverses the image.
(3) Although the magnification is not as good as that of a conventional microscope, its working distance is very long.
(4) The depth of focus is large, which is convenient for observing the full layer of the object to be inspected.
(5) The diameter of the field of view is large.
The working principle of the stereoscope is : by a common primary objective lens, the two beams after image formation are separated by two sets of intermediate objective lenses---the zoom lens, and form a certain angle called the body angle of view is generally 12 degrees - -15 degrees, and then through the respective eyepiece imaging, its magnification change is obtained by changing the distance between the intermediate mirror groups. With the two-channel optical path, the left and right beams in the binocular tube are not parallel, but have a certain clip. The corner provides a three-dimensional image for the left and right eyes. Therefore, it is also called "Zoom-stereomicroscope". 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.
According to the actual use requirements, the current stereo microscope can be equipped with a wide range of accessories, for example, if you want a larger magnification, you can choose more eyepieces and auxiliary objectives with higher magnification, through various digital interfaces and digital cameras, cameras. The electronic eyepiece and image analysis software constitute a digital imaging system connected to the computer for analysis and processing. The illumination system also has reflected light and transmitted light illumination. The light source has a halogen lamp, a ring lamp, a fluorescent lamp, a cold light source and the like. According to the optical principles and characteristics of stereo microscopes, it is widely used in industrial production and scientific research. For example, in the field of biology, medicine for slice operations and microsurgery; in the industry for the observation, assembly, inspection of small parts and integrated circuits.
Please indicate Shanghai Puhe Optoelectronics Technology Co., Ltd.
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