Principles of Dissecting Microscope (Stereo Microscope)

The working principle of a dissecting microscope depends on the two optical paths used by the microscope's objective lens and eyepieces. Each light path provides a different viewing angle. They have a top light for use during dissection and a bottom light for viewing images.
This illumination is achieved by constructing two eyepieces (binocular stereoscope), each showing a different type of light path, each providing an area for viewing comfort.
As a digital microscope, images can be viewed in 3-dimensional vision in real time on a computer monitor screen. They also allow for very close observations of small specimens such as insects, which produce images that are often larger than the size of the specimen, an effect known as macrophotography. Record images and analyze topography (surface) in complex samples in 3D.
Dissecting microscopes use two magnification systems: fixed (primary) magnification, in which two objectives provide a certain degree of magnification; and zoom (universal) magnification, which provides continuous magnification over a variable range, with auxiliary objectives that function to increase The total magnification depends on certain factors. The difference between zoom and fixed magnification can be achieved by changing the eyepiece.
Between fixed magnification and zoom magnification is an optical system called Galilean optics, which has fixed focus lenses that provide a fixed magnification for different magnifications, such as two sets of magnifications that provide four x magnification, three groups provide six times magnification, etc.