Stereomicroscope working principle and construction
Principle and structure of stereomicroscope: Stereomicroscope, also known as solid microscope, stereo microscope, and anatomical microscope. It is a visual instrument with a positive stereoscopic effect. The principle and structure of a stereo microscope are composed of a shared primary objective, and the two beams of light after imaging the object are separated by two sets of intermediate objectives, also known as zoom lenses. It is a visual instrument with a positive stereoscopic effect. The principle and structure of a stereo microscope are composed of a shared primary objective, which separates the two beams of light after imaging the object from two sets of intermediate objective lenses, also known as zoom lenses, and forms a certain angle called the volumetric angle. Generally, it is 12 to 15 degrees, and then imaged through their respective eyepieces. The magnification change is obtained by changing the distance between the intermediate lens groups. By using a dual channel optical path, the left and right beams in the binocular tube are not parallel, but have a certain angle, providing a three-dimensional image for 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 the perspective formed by people observing an object with their binoculars, thus forming a three-dimensional visual image.
Its characteristics are: large field of view diameter and deep focus, making it easy to observe all levels of the detected object; Although the magnification is not as good as conventional microscopes, their working distance is very long; It appears to be upright and easy to operate, due to the prism below the eyepiece reversing the image. According to actual usage requirements, current stereo microscopes can be equipped with a variety of accessories. For example, if you want to obtain a larger magnification, you can choose a higher magnification eyepiece and a microscope auxiliary objective. A digital imaging system can be formed through various digital interfaces and digital cameras, microscope cameras, electronic eyepieces, and image analysis software to connect to the computer for analysis and processing. The lighting system also has reflected and transmitted light illumination, and light sources include halogen lamps, circular LED lamps, fluorescent lamps, cold light sources, and so on. The principle and characteristics of stereomicroscope determine its wide application in industrial production and scientific research.
