How a stereomicroscope is different from a conventional optical microscope
A regular optical microscope is a precision optical instrument. Previously, simple microscopes were composed of only a few lenses, while the microscopes currently in use consist of a set of lenses. Ordinary optical microscopes can usually magnify objects by 1500-2000 times. The structure of a regular optical microscope can be divided into two main parts: one is the mechanical device, and the other is the optical system. Only when these two parts are well coordinated can the microscope function effectively.
Stereo microscope
The principle and structure of a stereo microscope are based on a shared primary objective lens. The two beams of light that image an object are separated by two sets of intermediate objectives, also known as zoom lenses, and form a certain angle called the body viewing angle. Generally, it is 12-15 degrees, and then imaged through their respective eyepieces. The magnification change is obtained by changing the distance between the intermediate lens groups. 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 stereoscopic image for both 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.
The difference between the two:
The usage method of stereo microscope is similar to that of ordinary optical microscope, but more convenient. The main difference between the two is that the inspection object of stereo microscope pot does not need to be made into a mounting film; The cutting stage of the stereo microscope is directly fixed on the mirror holder and equipped with a black and white double-sided plate or glass plate. The operator can choose according to the object and requirements of the microscope inspection; The imaging of a stereomicroscope is upright, which facilitates the identification of orientation during anatomical operations. The objective lens of a stereomicroscope is only one, and its magnification can be continuously adjusted by rotating and adjusting the spiral.
